Acipenser transmontanus NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of<a href="https://www.bing.com/search?q=north+america&amp;cvid=d55013d210f7439f8ca981b3b73576f2&amp;aqs=edge.0.69i59l2j69i60j69i57j69i60l2j69i59.492j0j4&amp;FORM=ANAB01&amp;PC=HCTS"> North America</a> and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.White sturgeon (Acipenser transmontanus) is a species of sturgeon in the family Acipenseridae of the order Acipenseriformes. They are an anadromous fish species ranging in the Eastern Pacific; from the Gulf of Alaska to Monterey, California. However, some are landlocked in the Columbia River Drainage, Montana, and Lake Shasta in California, with reported sightings in northern Baja California, Mexico.Actinopterygii (ray-finned fishes) &gt; Acipenseriformes (Sturgeons and paddlefishes) &gt; Acipenseridae (Sturgeons) &gt; Acipenserinae Etymology: : Latin, = sturgeon, 1853 (Ref. 45335); transmontanus: The specific name is derived from the Latin acipenser (sturgeon), trans (beyond), and montanus (mountain) (Ref. 27436).More on author: Richardson.

Acipenser transmontanus

Acipenser transmontanus NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation...

NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and <a href="https://www.earth.com/news/changing-ocean-soundscapes-impact-animals-worldwide/">animals</a> too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=6af7b47b706a421cbff7d45ac370e984&amp;aqs=edge.0.69i59l2j69i57j69i60l3j0.971j0j4&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.The Cicek Minnow (Acanthorutilus handlirschi) is a species of concern belonging in the species group "fishes" and found in the following area (s): Turkey. This species is also known by the following name (s): Pseudophoxinus handlirschi, Oreoleuciscus handlirschi, Phoxinellus handlirschi. Source: Federal Register, U.S. Fish &amp; Wildlife Service (various authors), series (version undefined) Acquired: 1996 : Notes: Various listings from the Federal Register on the legal status of species : Reference for: Acanthorutilus handlirschi, cicek [English] Source: NODC Taxonomic Code, database (

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.This species is also known by the following name(s): Pseudophoxinus handlirschi, Oreoleuciscus handlirschi, Phoxinellus handlirschi.

Acanthorutilus handlirschi

NatureServe Explorer Species Reports -- NatureServe Explorer is a source...

Accipiter fasciatus natalis NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/mistastin-lake-in-labrador-canada/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- Accipiter fasciatus natalis ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=84f1e8e9658b4caea7e69e7c7dff2555&amp;aqs=edge.0.69i59j69i57j69i59j0j69i60l3.1774j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world. North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere. It can also be described as the northern subcontinent of the Americas. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Tectonic Plate, Greenland is included as part of North America geographically. North America covers an area of about 24,709,000 square kilometers (9,540,000 square miles), about 16.5% of the Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the fourth by population after Asia, Africa, and Europe.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.

Accipiter fasciatus natalis

Accipiter fasciatus natalis NatureServe Explorer Species Reports -- NatureServe Explorer...

Accipiter francesii pusillus NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada.</a> NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=b465a6a06aa04b25a2b750c94d1fc9be&amp;aqs=edge.0.69i59l2j69i60j69i57j69i60l2j0.591j0j4&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Anjouan Island Sparrowhawk, or Ndzuwani Goshawk Accipiter francesii pusillus, an extremely rare, possibly extinct, subspecies of Frances's Sparrowhawk Spot-tailed Goshawk, Accipiter trinotatus Grey Goshawk, Accipiter novaehollandiae. The Anjouan sparrowhawk (Accipiter francesiae pusillus), also known as Anjouan Island sparrowhawk, Ndzuwani goshawk or Joanna Island goshawk is a subspecies of Frances's sparrowhawk (Accipiter francesiae). It is endemic to the Comoros island of Anjouan. It was thought to be extinct until searches in the 1980s and in 2005 confirmed that it is still extant.· North America, the planet's 3rd largest continent, includes (23) countries and dozens of possessions and territories. It contains all Caribbean and Central America countries, Bermuda, Canada, Mexico, the United States of America, as well as Greenland - the world's largest island.

Accipiter francesii pusillus

Accipiter francesii pusillus NatureServe Explorer Species Reports -- NatureServe Explorer...

Accipiter gentilis laingi NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=0e16320dcb6d40748a5d6a1b3d9cc5b8&amp;aqs=edge.0.69i59l2j69i57j69i60l3j0.896j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.Accipiter gentilis laingi Wildlife Species Description and Significance The Northern Goshawk laingi subspecies (Accipiter gentilis laingi) is a raven-sized, robust forest-dwelling raptor. Adults are brown-grey to slate-grey on the back, while underparts are pale-grey with fine horizontal grey bars and darker vertical streaking.The Northern Goshawk laingi subspecies (Accipiter gentilis laingi) is a raven-sized, robust forest-dwelling raptor. Adults are brown-grey to slate-grey on the back, while underparts are pale-grey with fine horizontal grey bars and darker vertical streaking. The head has a distinctive whitish line above the eye and a dark-grey to black cap.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.

Accipiter gentilis laingi

Accipiter gentilis laingi NatureServe Explorer Species Reports -- NatureServe Explorer...

Accipiter striatus venator NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada.</a> NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=6af7b47b706a421cbff7d45ac370e984&amp;aqs=edge.0.69i59l2j69i57j69i60l3j0.971j0j4&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.The Puerto Rican sharp-shinned hawk, (Accipiter striatus venator), falcón de sierra or gavilán pecho rufo in Spanish, is an endemic subspecies of the North American sharp-shinned hawk, occurring only in Puerto Rico. Discovered in 1912 and described as a distinct sub-species, it has been placed on the United States Fish and Wildlife Service list of endangered species because of its rapidly dwindling population in Puerto Rico. It can be found in the Toro Negro State Forest.Accipiter striatus venator is an endemic subspecies of the North American Sharp-shinned Hawk, occurring only in Puerto Rico. This animal has been placed on the Federal endangered list because of its rapidly dwindling population on the island.

Accipiter striatus venator

Accipiter striatus venator NatureServe Explorer Species Reports -- NatureServe Explorer...

Achatinella spp. NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada.</a> NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=0e16320dcb6d40748a5d6a1b3d9cc5b8&amp;aqs=edge.0.69i59l2j69i57j69i60l3j0.896j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Scientific name: Achatinella spp Hawaiian name: Kāhuli / Pūpū kani oe All 41 species of the genus Achatinella, also known as the O‘ahu tree snails, are federally listed as endangered. O‘ahu tree snails are diverse in patterns, colors, and shapes but all average about 3/4 inch in length.Oʻahu tree snails, genus Achatinella, form a large genus of colorful, tropical, tree-living, air-breathing, land snails, arboreal pulmonate gastropod mollusks in the family Achatinellidae. This genus of tree snails is endemic to Hawaii, and all extant species are endangered. They were once abundant and were mentioned extensively in Hawaiian folklore and songs, and their shells were used in lei and other ornaments.

Achatinella spp.

Achatinella spp. NatureServe Explorer Species Reports -- NatureServe Explorer is...

Acinonyx jubatus NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada.</a> NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.The cheetah (Acinonyx jubatus) is a large cat native to Africa and central Iran. It is the fastest land animal, capable of running at 80 to 128 km/h (50 to 80 mph), and as such has several adaptations for speed, including a light build, long thin legs and a long tail. It typically reaches 67–94 cm (26–37 in) at the shoulder, and the head-and-body length is between 1.1 and 1.5 m (3.6 and 4.9 ft). Adults weigh between 20 and 65 kg (44 and 143 lb). Its head is small, rounded, and has a short snout and black tear-like facial streaks. The coat is typically tawny to creamy white or pale buff and is mostly covered with evenly spaced, solid black spots. Four subspecies are recognised. More gregarious than many other cats, the cheetah has three main social groups—females and their cubs, male "coalitions" and solitary males. While females lead a nomadic life searching for prey in large home ranges

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.

Acinonyx jubatus

Acinonyx jubatus NatureServe Explorer Species Reports -- NatureServe Explorer is...

Acipenser brevirostrum NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=cd15138958b44bb2b853b45f848f47f2&amp;aqs=edge.0.69i59l2j69i60j69i57j69i60l2j0.896j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.The shortnose sturgeon (Acipenser brevirostrum) is a small and endangered species of North American sturgeon. The earliest remains of the species are from the Late Cretaceous Period, over 70 million years ago. Shortnose sturgeons are long-lived and slow to sexually mature. Most sturgeons are anadromous bottom-feeders, which means they migrate upstream to spawn but spend most of their lives feeding in rivers, deltas and estuaries. The shortnose sturgeon is often mistaken as a juvenile Atlantic sturgeon, because of their small size. Prior to 1973, U.S. commercial fishing records did not differentiate between the two species, both were reported as "common sturgeon", although it is believed based on sizes that the bulk of the catch was Atlantic sturgeon. The shortnose is distinguishable from the Atlantic sturgeon due to its shorter and rounder head.

Acipenser brevirostrum

Acipenser brevirostrum NatureServe Explorer Species Reports -- NatureServe Explorer is...

Acipenser medirostris NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and <a href="https://www.earth.com/news/faking-death-is-a-good-way-for-animals-to-stay-alive/">animals</a> too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports --Acipenser medirostris  ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=0e16320dcb6d40748a5d6a1b3d9cc5b8&amp;aqs=edge.0.69i59l2j69i57j69i60l3j0.896j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Sturgeons are among the largest and most ancient of <a title="Actinopterygii" href="https://en.wikipedia.org/wiki/Actinopterygii">ray finned fishes</a>. They are placed, along with <a title="Paddlefish" href="https://en.wikipedia.org/wiki/Paddlefish">paddlefishes</a> and numerous fossil groups, in the infraclass <a title="Chondrostei" href="https://en.wikipedia.org/wiki/Chondrostei">Chondrostei</a>, which also contains the ancestors of all other bony fishes. The sturgeons themselves are not ancestral to modern bony fishes but are a highly specialized and successful offshoot of ancestral <a title="Chondrostei" href="https://en.wikipedia.org/wiki/Chondrostei">chondrosteans</a>, retaining such ancestral features as a <a title="Fish fin" href="https://en.wikipedia.org/wiki/Fish_fin">heterocerca</a>l tail, fin structure, jaw structure, and spiracle. They have replaced a bony skeleton with one of <a title="Cartilage" href="https://en.wikipedia.org/wiki/Cartilage">cartilage</a>, and possess a few large bony plates instead of scales. Sturgeons are highly adapted for preying on bottom animals, which they detect with a row of sensitive <a title="Barbel (anatomy)" href="https://en.wikipedia.org/wiki/Barbel_(anatomy)">barbels</a> on the underside of their snouts. They protrude their very long and flexible “lips” to suck up food. Sturgeons are confined to temperate waters of the Northern Hemisphere. Of 25 extant species, only two live in California, the green sturgeon and the <a title="White sturgeon" href="https://en.wikipedia.org/wiki/White_sturgeon">white sturgeon</a> (A. transmontanus). (Moyle 2002)

Acipenser medirostris

Acipenser medirostris NatureServe Explorer Species Reports -- NatureServe Explorer is...

Acipenser mikadoi NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.The Sakhalin sturgeon is a species of fish in the family Acipenseridae. It is found in <a href="https://www.bing.com/search?q=japan&amp;cvid=b99abe0ea03d49319f23b97aa3ab6c4e&amp;aqs=edge.0.69i59j0l6.1785j0j9&amp;FORM=ANAB01&amp;PC=HCTS">Japan</a> and Russia.The Sakhalin Sturgeon (Acipenser mikadoi) has 8-12 dorsal scutes, 25-30 lateral scutes, 7-11 ventral scutes, 29-41 dorsal fin rays and 18-28 anal fin rays. Colouration ranges from olive-green to dark green on the back to yellowish green-white on the ventral side with an olive-green stripe on the side between the lateral and ventral scutes.

The Sakhalin sturgeon is considered to be a species that migrates up the river from the sea in order to spawn. During the months of April to May, the Sakhalin sturgeon feeds in the freshwater and then returns to the ocean during the summer

Acipenser mikadoi

Acipenser mikadoi NatureServe Explorer Species Reports -- NatureServe Explorer is...

Acipenser naccarii NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada.</a> NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.The Adriatic sturgeon (Acipenser naccarii) is a species of fish in the family Acipenseridae. It is native to the Adriatic Sea and large rivers which flow in it of Albania, Greece, Italy, and States of former-Yugoslavia. Specimens can be seen in several public aquarium, such the Milan Aquarium, Aquarium Finisterrae, Aquarium of the Po, and Oasis of Sant'Alessio in Lombardy.The Adriatic Sturgeon (Acipenser naccarii) is a thick set fish, growing up to 2 metres but 1.5m is more usual. Weight is 20-25kg. A long lived species, the Adriatic sturgeon has been recorded to reach 50 years of age. Acipenser naccarii has 10-14 dorsal scutes, 32-42 lateral scutes, 8-11 ventral scutes, 36-48 dorsal fin rays and 24-31 anal fin rays. The short snout is wide and rounded at the tip. The colour is grey-brown on the dorsal side

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.

Acipenser naccarii

Acipenser naccarii NatureServe Explorer Species Reports -- NatureServe Explorer is...

Acipenser oxyrinchus (=oxyrhynchus) desotoi NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/mistastin-lake-in-labrador-canada/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- Acipenser oxyrinchus (=oxyrhynchus) desotoi ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=84f1e8e9658b4caea7e69e7c7dff2555&amp;aqs=edge.0.69i59j69i57j69i59j0j69i60l3.1774j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world. North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere. It can also be described as the northern subcontinent of the Americas. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Tectonic Plate, Greenland is included as part of North America geographically. North America covers an area of about 24,709,000 square kilometers (9,540,000 square miles), about 16.5% of the Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the fourth by population after Asia, Africa, and Europe

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.

Acipenser oxyrinchus (=oxyrhynchus) desotoi

Acipenser oxyrinchus (=oxyrhynchus) desotoi NatureServe Explorer Species Reports -- NatureServe...

Acipenser oxyrinchus oxyrinchus NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- Acipenser oxyrinchus oxyrinchus ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=2c2e13fdcefb416498254b6003035344&amp;aqs=edge.0.69i59j69i60j69i57j69i60l2j0l2.1080j0j1&amp;pglt=299&amp;FORM=ANNTA1&amp;PC=HCTS">North America</a> and the world. North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere. It can also be described as the northern subcontinent of the Americas. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Tectonic Plate, Greenland is included as part of North America geographically. North America covers an area of about 24,709,000 square kilometers (9,540,000 square miles), about 16.5% of the Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the fourth by population after Asia, Africa, and Europe.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video. The Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus) is a member of the family Acipenseridae and along with other sturgeon it is sometimes considered a living fossil. The Atlantic sturgeon is one of two subspecies of A. oxyrinchus, the other being the Gulf sturgeon (A. o. desotoi). The main range of the Atlantic sturgeon is in eastern North America, extending from New Brunswick, Canada, to the eastern coast of Florida, United States. A disjunct population occurs in the Baltic region of Europe. Atlantic sturgeon live in rivers and coastal waters from Canada to Florida. Hatched in the freshwater of rivers, Atlantic sturgeon head out to sea as juveniles, and return to their birthplace to spawn, or lay eggs, when they reach adulthood.

Acipenser oxyrinchus oxyrinchus

Acipenser oxyrinchus oxyrinchus NatureServe Explorer Species Reports -- NatureServe Explorer...

Acipenser oxyrinchus oxyrinchus NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- Acipenser oxyrinchus oxyrinchus ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=6af7b47b706a421cbff7d45ac370e984&amp;aqs=edge.0.69i59l2j69i57j69i60l3j0.971j0j4&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.The Atlantic sturgeon (Acipenser oxyrinchus oxyrinchus) is a member of the family Acipenseridae and along with other sturgeon it is sometimes considered a living fossil. The Atlantic sturgeon is one of two subspecies of A. oxyrinchus, the other being the Gulf sturgeon (A. o. desotoi). The main range of the Atlantic sturgeon is in eastern North America, extending from New Brunswick, Canada, to the eastern coast of Florida, United States. A disjunct population occurs in the Baltic regionof Europe Atlantic sturgeon live in rivers and coastal waters from Canada to Florida. Hatched in the freshwater of rivers, Atlantic sturgeon head out to sea as juveniles, and return to their birthplace to spawn, or lay eggs, when they reach adulthood.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Acipenser oxyrinchus is mostly native to the countries of Canada and the United States, with a smaller population in northern Europe (essentially the Baltic region ). They can be found in temperate and subtropical climates and in marine or freshwater environments

Acipenser oxyrinchus oxyrinchus NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada.</a> NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=0e16320dcb6d40748a5d6a1b3d9cc5b8&amp;aqs=edge.0.69i59l2j69i57j69i60l3j0.896j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.The Atlantic sturgeon is a member of the family Acipenseridae and along with other sturgeon it is sometimes considered a living fossil. The Atlantic sturgeon is one of two subspecies of A. oxyrinchus, the other being the Gulf sturgeon (A. o. desotoi). The main range of the Atlantic sturgeon is in eastern North America, extending from New Brunswick, Canada, to the eastern coast of Florida, United States. A disjunct population occurs in the Baltic regionof Europe

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Acipenser oxyrinchus is mostly native to the countries of Canada and the United States, with a smaller population in northern Europe (essentially the Baltic region ). They can be found in temperate and subtropical climates and in marine or freshwater environments. The National Marine Fisheries Service (NMFS), proposed to designate critical habitat for the Gulf of Maine, New York Bight, and Chesapeake Bay Distinct Population Segments (DPSs) of Atlantic sturgeon ( Acipenser oxyrinchus oxyrinchus

Acipenser sinensis NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada.</a> NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.The Chinese sturgeon (Acipenser sinensis; Chinese: 中華鱘; pinyin: zhōnghuá xún) is a critically endangered member of the family Acipenseridae in the order Acipenseriformes. Historically, this anadromous fish was found in China, Japan, and the Korean Peninsula, but it has been extirpated from most regions due to habitat loss and overfishing. It is strictly protected by the Chinese government, named a "national treasure" much like its mammalian counterpart, the giant panda. China has several conservation programmes, including reserves specifically aimed at this species and restocking through release of juveniles in the Yangtze River.

Acipenser sinensis

Acipenser sinensis NatureServe Explorer Species Reports -- NatureServe Explorer is...

Acipenser sturio NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/">Canada.</a> NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=d55013d210f7439f8ca981b3b73576f2&amp;aqs=edge.0.69i59l2j69i60j69i57j69i60l2j69i59.492j0j4&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.The European sturgeon (Acipenser sturio), also known as the Atlantic sturgeon or common sturgeon, is a species of sturgeon previously found on most coasts of Europe. It is anadromous and breeds in rivers. It is currently a critically endangered species. Although the name Baltic sturgeon sometimes has been used, it has now been established that sturgeon of the Baltic region are A. oxyrinchus, a species otherwise restricted to the Atlantic coast of North America.Manufactured products are derived from eel, sturgeon (Acipenser sturio), salmon and trout (Salmo spp.), and, in the case of aquaculture species, tilapia (Tilapia spp.), tench (Tinca tinca), carp (Cyprinus spp.), salmon and trout. All of these form part of a sizeable range of widely distributed and economically important species.

Acipenser sturio

Acipenser sturio NatureServe Explorer Species Reports -- NatureServe Explorer is...

Acrocephalus familiaris kingi NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and<a href="https://www.earth.com/image/the-fall-rhapsody-in-ottawa/"> Canada</a>. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=cd15138958b44bb2b853b45f848f47f2&amp;aqs=edge.0.69i59l2j69i60j69i57j69i60l2j0.896j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.Acrocephalus familiaris kingi The Nihoa Millerbird is a tiny land bird that was discovered on the island of Nihoa in 1923. Another subspecies once occurred on Laysan Island, where it went extinct in the early 20th century after the island was devegetated by introduced rabbits.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.The millerbird (Acrocephalus familiaris) is a species of Old World warbler in the family Acrocephalidae. It has two subspecies, A. f. kingi and A f. familiaris. The latter, the Laysan millerbird, became extinct sometime between 1916 and 1923. The former, the critically endangered Nihoa millerbird, remains the only race left, inhabiting the small island Nihoa in Hawaiʻi, though it has since been reintroduced to Laysan.

Acrocephalus familiaris kingi

Acrocephalus familiaris kingi NatureServe Explorer Species Reports -- NatureServe Explorer...

Autumn,Blooming,Purple,Chrysanthemum,Flowers,Covered,With,Snow.,Frozen,Flowers

The world is changing, and so is the climate. Sudden temperature drops, unexpected frosts, and shifting weather patterns challenge ecosystems in many ways. 



For plants, these changes are especially harsh. Unlike animals, they cannot migrate, seek shelter, or generate body heat in cold weather. Instead, they rely on internal <a href="https://www.earth.com/news/climate-warming-alters-plant-germination-and-disrupts-ecosystem-balance/" target="_blank" rel="noreferrer noopener">adaptations to survive</a>.



Varvara Dikaya at <a href="https://www.umu.se/en/" target="_blank" rel="noreferrer noopener">Umeå University</a> explored this challenge in her doctoral research. She studied a protein which plays a key role in plant adaptation to low temperatures.



The findings reveal that this protein participates in multiple signaling pathways, enabling plants to survive harsh conditions.



<h2 class="wp-block-heading" id="h-cold-response-strategies-of-plants">Cold response strategies of plants </h2>



Unlike animals, <a href="https://www.earth.com/news/shaded-plants-capture-light-beyond-the-visible-spectrum/" target="_blank" rel="noreferrer noopener">plants</a> cannot seek warmth or migrate. Their survival depends on internal mechanisms that adjust to temperature shifts. 



Past research focused on molecules like amino acids and sugars, which help prevent freezing. Scientists also studied core temperature-response mechanisms, but many crucial components remained unknown.



Dikaya’s <a href="http://umu.diva-portal.org/smash/record.jsf?pid=diva2:1933796" target="_blank" rel="noreferrer noopener">research</a> uncovers a missing piece of this puzzle - RNA splicing. This process determines which proteins are produced in plant cells, directly impacting cold response strategies.



<h2 class="wp-block-heading" id="h-understanding-rna-splicing-the-basics">Understanding RNA splicing - the basics</h2>



<a href="https://www.earth.com/news/human-cells-communicate-with-each-other-through-rna/" target="_blank" rel="noreferrer noopener">RNA</a> splicing is like an editing process for your genes, making sure your cells get the right instructions to build proteins. 



When a gene gets copied into RNA, it includes extra sections called introns that don’t actually code for anything useful. 



Before the <a href="https://www.earth.com/news/rna-world-unraveling-mysteries-life-origin/" target="_blank" rel="noreferrer noopener">RNA can do its job</a>, the cell cuts out these introns and stitches together the remaining pieces, called exons. 



This process turns a raw RNA transcript into a polished, ready-to-go messenger RNA (mRNA) that cells can use to make proteins.



Sometimes, cells splice RNA in different ways, mixing and matching exons to produce multiple proteins from the same gene. 



This alternative splicing is why our relatively small number of genes can make such a huge range of proteins. When splicing goes wrong, though, it can lead to diseases like cancer and genetic disorders.



<h2 class="wp-block-heading" id="h-the-role-of-splicing">The role of splicing </h2>



"Splicing acts as a central hub controlling the information flow from DNA to RNA, defining which proteins are synthesized from a certain gene," explained Dikaya, who is a doctoral student in the Department of Plant Physiology at Umeå University and <a href="https://www.upsc.se" target="_blank" rel="noreferrer noopener">Umeå Plant Science Center</a>.



Her research focused on PORCUPINE, a protein discovered when scientists observed that plants with a mutation in this gene became unusually cold-sensitive. The mutation's spiky shoot tips inspired the name.



<h2 class="wp-block-heading" id="h-impact-of-temperature-drops">Impact of temperature drops</h2>



"The PORCUPINE mutant appears normal under ambient temperature conditions but cannot develop properly in the case of even a mild temperature drop," the team noted.



"Already at 16 degrees, the mutant grows shorter roots with increased root hair density and much smaller rosettes than normal. This is very special,."



Dikaya’s work reveals that cold temperatures trigger an increase in PORCUPINE RNA in cells. This suggests that the plant produces more of this protein to cope with the stress. 



However, PORCUPINE is not just a passive responder. It actively participates in the spliceosome, a complex that processes RNA before it transforms into proteins.



<h2 class="wp-block-heading" id="h-key-player-in-rna-processing">Key player in RNA processing</h2>



PORCUPINE is not just a responder to cold; it is an active participant in RNA processing. 



This protein is part of the spliceosome, a complex molecular machine that modifies RNA before it is translated into proteins. Without proper RNA splicing, plants cannot produce the proteins they need to survive.



By studying PORCUPINE’s role in the spliceosome, Dikaya and her team discovered that it influences multiple genetic pathways. 



Some of these pathways control how plants sense and react to cold temperature shifts. Others regulate growth patterns that determine whether a <a href="https://www.earth.com/news/predicting-how-climate-change-will-alter-plant-growth-cycles/" target="_blank" rel="noreferrer noopener">plant</a> can withstand stress.



<h2 class="wp-block-heading" id="h-a-network-of-cold-responses">A network of cold responses</h2>



Dikaya and her colleagues identified several genes controlled by PORCUPINE, all of which influence how plants respond to temperature changes. Her research highlights how intricate these responses are, involving multiple overlapping pathways.



"Our findings show the complexity of the cold response in plants. It is important to understand all aspects and identify fundamental mechanisms that could be applied later on in a practical manner," Dikaya noted.



"Such knowledge will be essential to create more resilient <a href="https://www.earth.com/news/bioelectric-future-harnessing-the-natural-energy-of-plants/" target="_blank" rel="noreferrer noopener">plants</a> capable of withstanding environmental challenges in the future, even though it is still a long way to go."



Her work provides a deeper understanding of how plants adjust to fluctuating temperatures. This knowledge could pave the way for crops that can better withstand future climate uncertainties.



<h2 class="wp-block-heading" id="h-future-of-cold-resistant-plants">Future of cold-resistant plants</h2>



The challenges of climate change are not going away, and neither is the need for <a href="https://www.earth.com/news/phantom-nutrient-the-secret-force-that-fuels-plant-growth/" target="_blank" rel="noreferrer noopener">resilient crops</a>. 



If researchers can harness the knowledge gained from studies like Dikaya’s, they may be able to develop plant varieties that thrive despite temperature fluctuations.



Although there is still much to learn, this research brings us one step closer to understanding the intricate mechanisms that allow plants to survive. In the years ahead, discoveries like this could reshape agriculture and help ensure food security in a changing world.



-----



Like what you read? <a href="https://www.earth.com/subscribe/" target="_blank" rel="noreferrer noopener">Subscribe to our newsletter</a> for engaging articles, exclusive content, and the latest updates.&nbsp;



Check us out on <a href="https://www.earth.com/earthsnap/" target="_blank" rel="noreferrer noopener">EarthSnap</a>, a free app brought to you by <a href="https://www.earth.com/author/eralls/" target="_blank" rel="noreferrer noopener">Eric Ralls</a> and Earth.com.



-----

Plants have an amazing ability to 'rewire' themselves to survive winter

The world is changing, and so is the climate. Sudden...

With their beak-like flowers and vibrant colors, Heliconia plants are a striking presence in tropical landscapes. But beyond their visual appeal, these captivating plants serve a vital ecological role and are emblematic of the tropical biosphere.



Heliconia plants have now entered the danger zone, with new research indicating that nearly half of these species are on the brink of extinction.



<h2 class="wp-block-heading" id="h-decades-of-fieldwork-data">Decades of fieldwork data </h2>



The research was focused on data from the world's herbaria - time capsules of botanical history.



"The data that is stored in the herbarium is a scientific treasure that makes a project like this feasible," explained Gary Krupnick, a botanist who heads the Plant Conservation Unit at the <a href="https://www.si.edu/museums/natural-history-museum" target="_blank" rel="noreferrer noopener">Smithsonian’s National Museum of Natural History</a>. 



The researchers analyzed decades' worth of fieldwork data, preserved in the form of thousands of dried specimens and meticulous labels, to assess the conservation status of Heliconia <a href="https://www.earth.com/news/all-plants-on-earth-could-be-saved-from-extinction/" target="_blank" rel="noreferrer noopener">plants</a>.



<h2 class="wp-block-heading" id="h-ecological-role-of-heliconia-plants">Ecological role of Heliconia plants </h2>



Encompassing 187 species related to bananas, the majority of Heliconia plants are rainforest dwellers in tropical Central and South America. Their roles go way beyond their spectacular visual appeal.



They act as precious nectar stations for bats and <a href="https://www.earth.com/news/sipping-on-nectar-hummingbirds-consume-a-surprising-amount-of-alcohol/" target="_blank" rel="noreferrer noopener">hummingbirds</a>, who in turn act as pollinators for many Heliconia species, playing a major part in the propagation of these plants. 



Yet, their very splendor has put them at risk of overexploitation and poaching. Habitat loss, invasive species, and climate change further compound the threats they face.



<h2 class="wp-block-heading" id="h-mapping-heliconia-s-survival">Mapping Heliconia’s survival</h2>



Despite the adverse conditions that limited in-person access to the herbarium during the pandemic, the researchers made the most of the fully digitized Heliconia specimens available online.



This precious information, coupled with a tool called GeoCAT (Geospatial Conservation Assessment Tool), allowed the research team to calculate crucial factors like the size of the Heliconia's range and the number of plants in various areas. 



The experts also explored how human activities have impacted forest cover in these areas, which Heliconia populations inhabit protected regions, and which species can potentially be reintroduced into the wild from <a href="https://www.earth.com/news/saving-earths-most-endangered-plants-from-extinction-proving-difficult-botanic-gardens/" target="_blank" rel="noreferrer noopener">botanical gardens</a>.



<h2 class="wp-block-heading" id="h-threatened-heliconia-species">Threatened Heliconia species </h2>



The findings were anything but encouraging. Of the 187 Heliconia species, 47 percent are threatened with <a href="https://www.earth.com/news/increasing-plant-extinction-threatens-the-future-of-medicine-and-human-health/" target="_blank" rel="noreferrer noopener">extinction</a>.



Most of these endangered species are found in few wild protected areas, and a relatively small number of these exist outside their native ranges. 



Furthermore, many of these species are adapted to fragile environments like high-altitude cloud forests, which are particularly susceptible to change.



The team identified 45 Heliconia species that are top priorities for additional protection.



“This study provides a blueprint for how to save this group of plants, starting with this list of priority species,” Krupnick said. 



<h2 class="wp-block-heading" id="h-raising-public-awareness">Raising public awareness</h2>



The researchers are committed to raising public awareness about the challenges facing the Heliconia genus. Their goal is to encourage responsible tourism to help curb unsustainable demand for these plants.



Their efforts will not merely save these vivid symbols of the tropics, but will also spur the conservation of other <a href="https://www.earth.com/news/plant-diversity-is-declining-at-a-steady-rate-across-germany/" target="_blank" rel="noreferrer noopener">endangered plant</a> species.



Despite the grim data, the researchers noted that there is a glimmer of hope. "Now that we know the conservation status of every one of the 187 species of Heliconia, we can construct a coherent plan of how to protect them,” said John Kress, an emeritus curator at the museum and one of the authors of the new study.



This study highlights the urgent need for enlightened conservation strategies to preserve our remarkable yet vulnerable biodiversity.



<h2 class="wp-block-heading" id="h-botanical-gardens-a-lifeline-for-heliconia">Botanical gardens: A lifeline for Heliconia</h2>



As wild Heliconia populations decline, botanical gardens are stepping in as vital sanctuaries. These living collections safeguard rare species, providing a backup for reintroduction efforts when conditions allow.



By cultivating Heliconia in controlled environments, scientists can develop sustainable propagation methods and help preserve the genetic diversity of the plants.



Beyond conservation, botanical gardens raise public awareness through education and partnerships with local organizations. 



However, not all Heliconia species thrive outside of their native habitats, which poses challenges for their long-term preservation. Advanced seed banking and propagation techniques must be explored to secure the future of these rainforest icons.



-----



Like what you read? <a href="https://www.earth.com/subscribe/" target="_blank" rel="noreferrer noopener">Subscribe to our newsletter</a> for engaging articles, exclusive content, and the latest updates.&nbsp;



Check us out on <a href="https://www.earth.com/earthsnap/" target="_blank" rel="noreferrer noopener">EarthSnap</a>, a free app brought to you by <a href="https://www.earth.com/author/eralls/" target="_blank" rel="noreferrer noopener">Eric Ralls</a> and Earth.com.



-----

Half of the world's Heliconia species are at risk of extinction

With their beak-like flowers and vibrant colors, Heliconia plants are...

Close-up,In,A,Frying,Pan,With,Olive,Oil,,Ghee,(clarified

Swapping butter for plant-based oils may be a simple way to support better long-term health. 



A new study suggests that people who consume more plant-based oils - such as soybean, canola, and olive oil - tend to live longer than those who regularly eat butter.



The research, which tracked dietary habits for over 30 years, found a lower risk of death from cancer and heart disease among those who opted for plant oils. 



Meanwhile, higher butter intake was linked to an increased risk of early death.



<h2 class="wp-block-heading" id="h-how-diet-affects-longevity">How diet affects longevity</h2>



Scientists from <a href="https://hsph.harvard.edu/" target="_blank" rel="noreferrer noopener">Harvard T.H. Chan School of Public Health</a>, Mass General Brigham, and the Broad Institute of MIT and Harvard analyzed dietary data from more than 220,000 participants. 



These individuals were part of long-running studies that collected information on <a href="https://www.earth.com/news/poor-eating-habits-can-lead-to-lifelong-diseases/" target="_blank" rel="noreferrer noopener">eating habits</a> every four years. 



By reviewing this data, researchers could estimate butter and oil consumption over time.



Butter intake included all sources - spreads, cooking, baking, and margarine blends - while plant-based oil intake was calculated based on how often participants used oils in frying, sautéing, baking, and salad dressings.



<h2 class="wp-block-heading" id="h-butter-vs-plant-based-oils">Butter vs plant-based oils</h2>



The study's lead author, Yu Zhang, M.B.B.S., is a research assistant at the Channing Division of Network Medicine at <a href="https://www.brighamandwomens.org/" target="_blank" rel="noreferrer noopener">Brigham and Women's Hospital</a>.



"What's surprising is the magnitude of the association that we found - we saw a 17% lower risk of death when we modeled swapping butter with plant-based oils in daily diet. That is a pretty huge effect on health," Zhang explained.



The key difference comes down to fat composition. 



Butter is high in <a href="https://www.earth.com/news/high-fat-diets-linked-to-unexpected-health-risks/" target="_blank" rel="noreferrer noopener">saturated fat</a>, while plant-based oils contain more unsaturated fats. Previous research has looked at dietary fats in general, but fewer studies have focused on their primary sources.



The findings suggest a clear contrast in health risks. Participants who ate the most butter had a 15% higher risk of death compared to those who ate the least. 



Meanwhile, those who consumed the most plant-based oils had a 16% lower risk of dying.



<h2 class="wp-block-heading" id="h-choosing-plant-based-oils-over-butter">Choosing plant-based oils over butter</h2>



"People might want to consider that a simple dietary swap - replacing butter with soybean oil or <a href="https://www.earth.com/news/regular-olive-oil-consumption-can-literally-save-your-life/" target="_blank" rel="noreferrer noopener">olive oil</a> - can lead to significant long-term health benefits," said corresponding author Daniel Wang, M.D., Sc.D., of the Channing Division of Network Medicine at Brigham and Women's Hospital.



"From a public health perspective, this is a substantial number of deaths from cancer or from other chronic diseases that could be prevented."



To further explore this link, the researchers ran a substitution analysis. Their model showed that replacing just 10 grams of butter per day - less than a tablespoon - with an equivalent amount of plant-based oil could reduce cancer deaths and overall mortality by 17%.



"Even cutting back butter a little and incorporating more plant-based oils into your daily diet can have meaningful long-term health benefits," Wang added.



<h2 class="wp-block-heading" id="h-environmental-and-economic-benefits">Environmental and economic benefits</h2>



Beyond personal health, switching from butter to plant-based oils has broader implications. 



Butter production requires more land, water, and energy compared to plant oil production. <a href="https://www.earth.com/news/humans-began-dairy-farming-much-earlier-than-previously-believed/" target="_blank" rel="noreferrer noopener">Dairy farming</a>, which supports butter production, contributes significantly to greenhouse gas emissions. 



In contrast, plant oils have a lower environmental impact, making them a more sustainable choice.



Economically, plant-based oils are often more affordable and widely available than butter. 



With rising food prices, making the switch could be a cost-effective way for individuals and families to improve their diets without significantly increasing their grocery bills.



<h2 class="wp-block-heading" id="h-what-s-next-for-research">What’s next for research?</h2>



Although the study presents strong evidence, the investigators do recognize some limitations. 



A majority of participants were healthcare professionals, so the results may not be representative of the overall U.S. population.



Also, self-reported food intake information may have some error, although the long duration and large number of participants in the study reduce the concerns of the scientists in this regard.



Future studies will investigate the biological processes that mediate these health consequences.



For the moment, the message is straightforward: replacing butter with plant-based oils is a simple, practical move toward <a href="https://www.earth.com/news/prescription-for-fruits-and-vegetables-linked-to-better-heart-health/" target="_blank" rel="noreferrer noopener">improved health</a> in the long run.



Small, sustainable changes to eating habits can have long-term payoffs - not only for individuals but for public health and the planet too.



The full study was published in the journal <a href="https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2831265" target="_blank" rel="noreferrer noopener">JAMA Internal Medicine</a>.



-----



Like what you read? <a href="https://www.earth.com/subscribe/" target="_blank" rel="noreferrer noopener">Subscribe to our newsletter</a> for engaging articles, exclusive content, and the latest updates.&nbsp;



Check us out on <a href="https://www.earth.com/earthsnap/" target="_blank" rel="noreferrer noopener">EarthSnap</a>, a free app brought to you by <a href="https://www.earth.com/author/eralls/" target="_blank" rel="noreferrer noopener">Eric Ralls</a> and Earth.com.



-----

Health challenge: Cooking with butter vs. plant-based oils

Swapping butter for plant-based oils may be a simple way...

Cannabis has been studied for decades for its pain-relieving potential, but its psychoactive properties have limited its medical use.



Millions of individuals suffer from chronic pain, and for many years, the main treatment has been opioids.



Effective as they are, opioids come with serious risks - they are extremely addictive and can be deadly if abused. The demand for safer pain medication has never been more urgent.



<h2 class="wp-block-heading" id="h-cannabis-inspired-breakthrough">Cannabis-inspired breakthrough </h2>



In the search for alternatives that can bring pain relief without the risk of <a href="https://www.earth.com/news/brain-discovery-offers-hope-for-tackling-opioid-addiction/" target="_blank" rel="noreferrer noopener">addiction</a>, researchers have discovered a potential solution.



Experts at <a href="https://medicine.washu.edu/" target="_blank" rel="noreferrer noopener">Washington University School of Medicine in St. Louis</a> and Stanford University have created a new compound that replicates a natural molecule that occurs in cannabis.



This achievement leverages the pain-relieving properties of cannabis without inducing mind-altering side effects. The compound has been tested in mice with some positive results.



<h2 class="wp-block-heading" id="h-safer-approach-to-pain-relief">Safer approach to pain relief</h2>



The study highlights the potential of this new compound as a non-addictive pain reliever.



Unlike <a href="https://www.earth.com/news/opioid-related-deaths-are-on-the-rise-among-young-people/" target="_blank" rel="noreferrer noopener">opioids</a>, which act on the brain’s reward system and lead to addiction, this compound was designed to target pain-reducing receptors in the body while preventing entry into the brain.



Dr. Susruta Majumdar is a professor of anesthesiology at WashU Medicine and the study's senior author. 



“There is an urgent need to develop non-addictive treatments for chronic pain, and that’s been a major focus of my lab for the past 15 years,” said Dr. Majumdar.



“The custom-designed compound we created attaches to pain-reducing receptors in the body but by design, it can’t reach the brain. This means the compound avoids psychoactive side effects such as mood changes and isn’t addictive because it doesn’t act on the brain’s reward center.”



<h2 class="wp-block-heading" id="h-the-opioid-crisis">The opioid crisis</h2>



Despite warnings about the dangers of <a href="https://www.earth.com/news/psilocybin-may-protect-against-opioid-use-disorders/" target="_blank" rel="noreferrer noopener">opioid use</a>, overdose deaths remain alarmingly high. In 2022 alone, opioids were linked to approximately 82,000 deaths in the United States. The crisis continues, pushing researchers to find safer alternatives.



Study co-author Dr. Robert W. Gereau is a professor of&nbsp;anesthesiology&nbsp;and director of the&nbsp;WashU Medicine Pain Center. He noted that people have turned to <a href="https://www.earth.com/news/record-number-of-americans-are-high-on-marijuana-at-work/" target="_blank" rel="noreferrer noopener">marijuana</a> as a pain treatment for thousands of years. 



“Clinical trials also have evaluated whether cannabis provides long-term pain relief. But inevitably the psychoactive side effects of cannabis have been problematic, preventing cannabis from being considered as a viable treatment option for pain. However, we were able to overcome that issue," said Dr. Gereau.



<h2 class="wp-block-heading" id="h-pain-relief-without-side-effects">Pain relief without side effects</h2>



Cannabinoid molecules in cannabis interact with CB1 receptors on brain cells and pain-sensing nerve cells. These interactions contribute to marijuana’s pain-relieving effects but also cause mind-altering side effects.



Working with Stanford University researchers, the experts modified a cannabinoid molecule by adding a positive charge. This prevents the compound from crossing the blood-brain barrier while still allowing it to bind to CB1 receptors in the body.



By limiting its action to pain-sensing nerve cells outside the brain, they achieved pain relief without the unwanted side effects.



The researchers tested the compound in mouse models of nerve-injury pain and migraine headaches. They measured touch sensitivity as an indicator of pain and found that the modified compound eliminated hypersensitivity in the mice.



The results suggest that the compound could be a powerful pain reliever without the risks associated with opioids.



<h2 class="wp-block-heading" id="h-tolerance-and-long-term-effectiveness">Tolerance and long-term effectiveness</h2>



One major issue with opioid treatments is that patients develop tolerance over time, requiring higher doses for the same effect. This new compound, however, provided prolonged pain relief without signs of tolerance, even with twice-daily treatments over nine days.



The researchers discovered why tolerance was avoided. By using advanced computational modeling, they identified a previously hidden pocket on the CB1 receptor.



This pocket, confirmed through structural models, allows the compound to bind in a way that reduces cellular activity linked to tolerance. 



Unlike conventional cannabinoid binding sites, which become less effective over time, the hidden pocket opens briefly, allowing the compound to work without losing its effect.



<h2 class="wp-block-heading" id="h-the-future-of-pain-relief">The future of pain relief</h2>



Designing molecules that relieve pain without unwanted side effects is a complex challenge. Researchers now aim to develop this compound into an oral medication for further testing and, eventually, clinical trials.



If successful, this could mark a significant shift in how <a href="https://www.earth.com/news/patients-with-chronic-pain-are-turning-to-cannabis-for-relief/" target="_blank" rel="noreferrer noopener">chronic pain</a> is treated - offering a safer, non-addictive alternative to opioids.



Millions of people struggle with chronic pain daily. With ongoing research, a new solution could be on the horizon - one that provides relief without the devastating consequences of addiction.



The full study was published in the journal <a href="https://www.nature.com/articles/s41586-025-08618-7" target="_blank" rel="noreferrer noopener">Nature</a>.



-----



Like what you read? <a href="https://www.earth.com/subscribe/" target="_blank" rel="noreferrer noopener">Subscribe to our newsletter</a> for engaging articles, exclusive content, and the latest updates.&nbsp;



Check us out on <a href="https://www.earth.com/earthsnap/" target="_blank" rel="noreferrer noopener">EarthSnap</a>, a free app brought to you by <a href="https://www.earth.com/author/eralls/" target="_blank" rel="noreferrer noopener">Eric Ralls</a> and Earth.com.



-----

Tapping into the pain relief potential of cannabis without the high

Cannabis has been studied for decades for its pain-relieving potential,...

Pollination happens everywhere, but most people don’t notice it. Small creatures like bees, butterflies, birds, and bats carry pollen between plants, helping them grow. Without pollinators, flowers wouldn’t turn into fruit, and seeds wouldn’t spread. They do more than help plants reproduce - they keep nature healthy, support animals, and help produce food.



But here’s the problem - many of these <a href="https://www.earth.com/news/how-pollinators-boost-the-nutritional-value-of-crops/" target="_blank" rel="noreferrer noopener">pollinators</a> are vanishing. Climate change, habitat destruction, and industrial farming are wiping out species at an alarming rate.



Their disappearance isn’t just an issue for farmers. It affects forests, grasslands, and even city parks, where pollinators keep plant life going. When they decline, entire ecosystems suffer, and the food supply becomes more fragile.



<h2 class="wp-block-heading" id="h-pollinator-s-role-in-plant-reproduction">Pollinator's role in plant reproduction</h2>



Plants depend on pollination to grow and multiply. Around 85% of wild plant species and more than 70% of cultivated crops rely on pollinators for reproduction. Without pollinators, many plants would fail to produce fruits or seeds.



“In most of the studies conducted on this issue across the world, plants were found not to bear fruit if no pollinator was present,“ noted Maddi Artamendi, a researcher at the University of the Basque Country (<a href="https://www.ehu.eus/en/en-home" target="_blank" rel="noreferrer noopener">UPV/EHU</a>).



“Studies of this type have been mostly conducted on crop species, but that does not give a true picture, since the diversity of pollinators is going to decrease, is already decreasing, but is not going to disappear completely."



“What is more, wild plants were also taken into consideration as well as crop plants. We wanted to approach the subject from a more <a href="https://www.earth.com/news/robotic-insects-may-be-the-future-of-farming-and-plant-pollination/" target="_blank" rel="noreferrer noopener">realistic perspective</a>.”



Her research challenges the idea that only crops suffer from pollinator loss. Wild plants are equally affected, and their decline could disrupt entire ecosystems.



<h2 class="wp-block-heading" id="h-impact-of-pollinator-decline">Impact of pollinator decline</h2>



A study by Artamendi and Ainhoa Magrach, an Ikerbasque Research Professor at Butler County Community College (<a href="https://www.bc3.edu" target="_blank" rel="noreferrer noopener">BC3</a>) highlights the need to protect <a href="https://www.earth.com/news/saving-pollinators-wild-bees-boosts-food-supply-income/" target="_blank" rel="noreferrer noopener">pollinator diversity</a>. 



The researchers stress the urgency of addressing factors that reduce pollinator numbers. The study found that a decrease in pollinators negatively affects plant reproduction, reducing fruit quantity, seed numbers, and fruit weight. Wild plants suffer more from pollinator loss than cultivated plants.



Self-pollinating plants also benefit from diverse pollinators. “Showing that it is very beneficial for these plants to exchange pollen,” explained Artamendi.



<h2 class="wp-block-heading" id="h-wild-pollinators-and-plant-reproduction">Wild pollinators and plant reproduction</h2>



The study reveals that wild pollinators contribute more to plant reproduction than domestic pollinators, such as honey bees. A decline in wild pollinators significantly harms plant reproductive success.



The loss of invertebrate pollinators is more severe than that of vertebrates. Nocturnal pollinators are disappearing faster than diurnal pollinators. The decline of wild pollinators is greater than that of domestic pollinators. 



These findings highlight the urgent need to protect a wide range of <a href="https://www.earth.com/news/pollen-wars-plants-compete-for-space-on-pollinators/" target="_blank" rel="noreferrer noopener">pollinator species</a>.



<h2 class="wp-block-heading" id="h-decline-of-pollinators">Decline of pollinators </h2>



To understand pollinator decline, Artamendi and Magrach conducted a meta-analysis of 207 studies from 46 countries. This type of analysis combines data from multiple studies, allowing researchers to find broad patterns.



“We analyzed research done across the world. We had to bear in mind that there are different varieties of plants depending on the climate, that the influence on one plant or another may have been different, and how large the sample was, etc.,“ explained Artamendi.



“We took into account many variables so that all the pieces of research could be compared, and that is how we achieved a real, quantifiable result.” 



<h2 class="wp-block-heading" id="h-need-for-a-broader-perspective">Need for a broader perspective</h2>



The researchers concluded that all pollinators, both wild and domestic, play a vital role in plant reproduction.



“We cannot focus on domestic pollinators alone. There are more pollinators, and we saw that they are all of great importance in the reproductive success of plants and in maintaining plant diversity," the team noted.



"We should not focus just on crop plants and domestic pollinators, the view has to be opened out.”



<h2 class="wp-block-heading" id="h-why-pollinator-protection-matters">Why pollinator protection matters</h2>



The decline of pollinators is not just an environmental issue - it’s a crisis that could reshape entire ecosystems. This study reinforces the importance of protecting <a href="https://www.earth.com/news/pollinators-face-extinction-risk-due-to-climate-change/" target="_blank" rel="noreferrer noopener">pollinators</a> to keep nature thriving and ensure stable food production.



By taking action now - whether through conservation efforts, policy changes, or individual choices like planting pollinator-friendly gardens - humanity can help slow this decline. Protecting pollinators means protecting life itself.



The study is published in the journal <a href="https://www.nature.com/articles/s41559-024-02595-2" target="_blank" rel="noreferrer noopener">Nature Ecology &amp; Evolution</a>.



-----



Like what you read? <a href="https://www.earth.com/subscribe/" target="_blank" rel="noreferrer noopener">Subscribe to our newsletter</a> for engaging articles, exclusive content, and the latest updates.&nbsp;



Check us out on <a href="https://www.earth.com/earthsnap/" target="_blank" rel="noreferrer noopener">EarthSnap</a>, a free app brought to you by <a href="https://www.earth.com/author/eralls/" target="_blank" rel="noreferrer noopener">Eric Ralls</a> and Earth.com.



-----

Pollinators are disappearing, and it’s bad news for plants

Pollination happens everywhere, but most people don’t notice it. Small...

Tropical rainforests help the planet breathe. They store carbon, control temperatures, and shelter wildlife. These tropical forests have survived climate changes for millions of years, but now they face an unprecedented challenge.



Climate change is reshaping ecosystems at an unprecedented pace. Rising temperatures, shifting rainfall patterns, and extreme weather events are placing immense stress on forests across the Americas. 



<h2 class="wp-block-heading" id="h-tropical-forests-in-a-shifting-climate">Tropical forests in a shifting climate </h2>



A new study reveals that these <a href="https://www.earth.com/news/humans-lived-in-rainforests-80000-years-earlier-than-we-thought/" target="_blank" rel="noreferrer noopener">forests</a> are not adapting quickly enough to keep up with environmental changes. This slow response raises concerns about their long-term survival and the cascading effects their decline could have on the global climate system.



Dr. Jesús Aguirre-Gutiérrez from the University of Oxford’s <a href="https://www.eci.ox.ac.uk" target="_blank" rel="noreferrer noopener">Environmental Change Institute</a> led the research with over 100 scientists and local collaborators. 



The team analyzed data from 415 permanent forest plots, covering regions from Mexico to southern Brazil. 



By studying the characteristics of more than 250,000 trees, they examined how <a href="https://www.earth.com/news/amazon-rainforest-may-be-much-more-stable-than-we-thought/" target="_blank" rel="noreferrer noopener">different species</a> are responding to shifting temperatures and rainfall patterns.



<h2 class="wp-block-heading" id="h-trees-are-adapting-too-slowly">Trees are adapting too slowly</h2>



The experts found that while climate change alters temperature and rainfall, tree communities are not keeping up with the pace.



This slow response threatens the balance of these <a href="https://www.earth.com/news/two-thirds-of-temperate-rainforests-could-be-lost-this-century/" target="_blank" rel="noreferrer noopener">ecosystems</a>. Some species thrive, while others struggle. Traits like wood density, leaf thickness, and drought resistance play a crucial role in determining which trees survive.



“Tropical forests are among the most diverse ecosystems on Earth, yet their ability to adapt to climate change is limited. Understanding which traits help trees survive can guide conservation efforts and policy decisions,“ said Dr. Aguirre-Gutiérrez.



“Given the changes in climate we have observed over the last 40 to 50 years, you might think there have also been lots of changes in the tree communities in tropical rainforests. But some of these changes are too small and too slow to actually adapt to the observed changes in climate."



By looking at individual trees from different communities, the team found that some have suffered due to climate shifts, while others have thrived, noted Dr. Aguirre-Gutiérrez.



"We can study the characteristics, also known as ‘tree traits,’ of those that have survived, as well as new individuals joining the communities and those that have died, to understand what makes them react differently to a changing climate.”



<h2 class="wp-block-heading" id="h-risky-future-for-rainforests">Risky future for rainforests</h2>



Mountainous <a href="https://www.earth.com/news/the-amazon-rainforest-is-approaching-widespread-collapse/" target="_blank" rel="noreferrer noopener">forests</a> appear to adapt faster than lowland forests. This difference likely results from the greater climate variability at higher altitudes. 



Meanwhile, younger trees exhibit noticeable shifts in traits, yet overall forest composition remains largely unchanged.



By 2100, the region’s temperatures could rise by up to 4°C, with rainfall decreasing by as much as 20%. These changes may push tropical forests further out of balance, making them more vulnerable to extreme climate events. Without intervention, the risk of ecosystem collapse increases.



“If we know what species of trees are doing better or worse, and what set of traits they have, then we know what they can withstand. It will help inform what conservation actions should be encouraged and where funding should be allocated,” said Dr. Aguirre-Gutiérrez.



<h2 class="wp-block-heading" id="h-extensive-collection-of-field-data">Extensive collection of field data</h2>



Professor José Javier Corral Rivas from the Juarez University of the State of Durango (<a href="https://www.ujed.mx" target="_blank" rel="noreferrer noopener">UJED</a>) highlighted the significance of long-term field studies. 



“It is thanks to the extensive collection of field data over the past decades, largely supported by Latin American institutions and international collaborations, that we are able to make discoveries like this one, particularly in highly biodiverse regions such as the tropical forests of the Americas.”



Professor Oliver Phillips from the <a href="https://www.leeds.ac.uk" target="_blank" rel="noreferrer noopener">University of Leeds</a> emphasized the importance of human effort in this research. 



“What is remarkable is that we discovered this not with satellites or artificial intelligence, but by the efforts of botanists, foresters and hundreds of other skilled partners,” noted Professor Phillips. "These undervalued colleagues provide a great service to the world.”



<h2 class="wp-block-heading" id="h-climate-response-of-tropical-forests">Climate response of tropical forests </h2>



The researchers found that functional traits among trees are shifting but at a pace far too slow to match climate change. Deciduous species are becoming more common in some <a href="https://www.earth.com/news/rainforest-emissions-shape-the-climate-and-cloud-formation/" target="_blank" rel="noreferrer noopener">forests</a>, and leaf thickness is decreasing.



However, the rate of change is only a fraction of what is needed for trees to maintain equilibrium with the changing environment.



Lowland forests, which are experiencing higher temperature increases and greater drought stress, are showing stronger changes than montane forests. While some species are adapting, others are dying at increasing rates. 



The experts found that tree recruitment, where young trees replace older ones, is the most responsive to climate shifts. However, these recruits still track climate change at only about 22% of the expected rate.



<h2 class="wp-block-heading" id="h-protecting-rainforests-for-future-generations">Protecting rainforests for future generations</h2>



“Measuring forests carefully tree-by-tree, species-by-species and year-after-year, teaches us about the health of trees and the risks they face,“ noted Professor Beatriz Marimon from the <a href="https://unemat.br" target="_blank" rel="noreferrer noopener">State University of Mato Grosso</a>, Brazil.



“In some of our Amazon plots the forest is facing a deadly combination of fire, heat and drought. Understanding which tree species can survive these threats is critical to creating a liveable future for all of us.”



This study highlights the urgent need for research and conservation efforts to help tropical forests withstand climate challenges. Without immediate action, these ecosystems may struggle to survive the coming decades.



The study is published in the journal <a href="https://www.science.org/doi/epdf/10.1126/science.adl5414" target="_blank" rel="noreferrer noopener">Science</a>.



-----



Like what you read? <a href="https://www.earth.com/subscribe/" target="_blank" rel="noreferrer noopener">Subscribe to our newsletter</a> for engaging articles, exclusive content, and the latest updates.&nbsp;



Check us out on <a href="https://www.earth.com/earthsnap/" target="_blank" rel="noreferrer noopener">EarthSnap</a>, a free app brought to you by <a href="https://www.earth.com/author/eralls/" target="_blank" rel="noreferrer noopener">Eric Ralls</a> and Earth.com.



-----

Tropical forests are struggling to keep pace with climate change

Tropical rainforests help the planet breathe. They store carbon, control...

The Arctic is changing fast. Ancient ice is melting, glaciers are shrinking, and seasons are shifting. Below the surface, vast kelp forests sway along rocky coasts, hidden from sight.



These marine giants are more than plants. They are the architects of entire ecosystems, offering shelter, food, and stability to countless <a href="https://www.earth.com/news/sea-otters-help-kelp-forests-recover-but-theres-more-to-the-story/" target="_blank" rel="noreferrer noopener">marine species</a>. But as the Arctic transforms, so its kelp forests change too.



A recent study shows that melting glaciers and permafrost are changing kelp ecosystems by increasing freshwater run-off. The research was conducted by scientists from EU projects FACE-IT, ECOTIP, and SEA-Quester.



What the experts found is both startling and deeply revealing: shifts in water chemistry, microbial communities in flux, and an unexpected entanglement with heavy metals.



The story of Arctic kelp is not just an ecological tale - it is an economic and social one, reaching far beyond the cold northern seas.



<h2 class="wp-block-heading" id="h-a-warming-arctic-a-changing-coastline">A warming Arctic, a changing coastline</h2>



The Arctic is heating up - faster than anywhere else on the planet. This isn’t a slow, creeping shift; it’s a rapid and relentless <a href="https://www.earth.com/news/pacific-kelp-forests-existed-32-million-years-ago/" target="_blank" rel="noreferrer noopener">transformation</a>.



With glaciers melting and permafrost thawing, vast amounts of freshwater are flooding into coastal seas. It’s a deluge that doesn’t just mix and disappear. The chemistry of the water shifts, salinity drops and light struggles to penetrate as suspended sediments cloud the once-clear depths.



For kelp, these changes aren’t trivial. They depend on stable conditions that include sunlight, salt, and predictable nutrient flows.



But with sediments thickening the water, photosynthesis becomes a challenge. Light barely reaches their fronds, stalling their growth. And the run-off doesn’t just bring fresh water; it carries something far more sinister - metals, both essential and toxic.



<h2 class="wp-block-heading" id="h-heavy-metals-in-the-water">Heavy metals in the water</h2>



What happens when <a href="https://www.earth.com/earthpedia-articles/kelp-forest/" target="_blank" rel="noreferrer noopener">kelp</a> absorbs the very waters that nourish them? The answer lies in their elemental makeup. 



The research team studied kelps from various locations - some in areas with heavy runoff and others in clearer waters. Their findings were striking. Kelps from high-run-off areas contained significantly elevated levels of metals like cadmium, lead, and mercury.



Mercury in these kelps was 72% higher than in cleaner areas. That’s a serious warning. Kelp supports Arctic marine life, but when it absorbs metals, the pollution spreads through the ecosystem.



Small marine creatures graze on kelp, larger predators consume them, and over time, toxic elements creep their way up the food chain. Eventually, they land on the plates of Arctic communities that rely on seafood. 



What begins in a hidden kelp forest could have consequences that reach dinner tables far from the icy shores.



<h2 class="wp-block-heading" id="h-microbial-world-living-on-kelp">Microbial world living on kelp</h2>



A blade of kelp is covered in bacteria, fungi, and other life forms. These microbes play many important roles. They shape kelp health, aid in nutrient cycling, and offer a first line of defense against pathogens. But just like the kelp itself, they are sensitive to change.



The researchers found that run-off is rewriting the microbial landscape. The balance of bacteria living on kelp is shifting, and with it, the very functions that keep these marine plants thriving.



Some microbes that help break down organic matter are disappearing, while metal-tolerant ones are growing. This shift could disrupt kelp, the animals that rely on it, and the entire marine ecosystem.



<h2 class="wp-block-heading" id="h-potential-of-arctic-kelp-cultivation">Potential of Arctic kelp cultivation</h2>



But there’s another side to this story. While heavy metal accumulation spells trouble for marine life, it also points to an unexpected opportunity. Kelp is a natural sponge, pulling metals from the water with remarkable efficiency. Could this ability be harnessed?



Scientists are looking into something called phytomining - using plants and algae to pull valuable metals from the environment. Arctic waters hold rare earth metals, crucial for tech like wind turbines. Could kelp be the answer? Maybe.



If managed correctly, kelp cultivation could offer a sustainable way to harvest these elements, reducing reliance on traditional mining, which scars landscapes and pollutes ecosystems.



At the same time, kelp could serve as a living sensor, a way to track pollution levels in Arctic waters. By monitoring changes in its elemental composition, researchers might be able to map contamination hotspots and predict where <a href="https://www.earth.com/news/world-wildlife-day-2025-a-global-call-to-protect-nature/" target="_blank" rel="noreferrer noopener">environmental threats</a> are most severe.



<h2 class="wp-block-heading" id="h-the-future-of-arctic-kelp">The future of Arctic kelp</h2>



The future of Arctic kelp remains uncertain. With the Arctic warming, run-off levels will only increase. 



The delicate balance that has sustained these underwater forests for millennia is shifting in ways scientists are only beginning to grasp.



Will kelp adapt, or will these forests shrink, taking with them the <a href="https://www.earth.com/news/sea-otters-have-protected-california-kelp-forests-for-a-century/" target="_blank" rel="noreferrer noopener">biodiversity</a> they support?



One thing is clear: kelp is at a crossroads. It is both a victim and a potential solution - threatened by climate change yet offering a key to understanding and mitigating its impacts.



The study is published in the journal <a href="https://www.nature.com/articles/s41598-024-82287-w" target="_blank" rel="noreferrer noopener">Scientific Reports</a>.



-----



Like what you read? <a href="https://www.earth.com/subscribe/" target="_blank" rel="noreferrer noopener">Subscribe to our newsletter</a> for engaging articles, exclusive content, and the latest updates.&nbsp;



Check us out on <a href="https://www.earth.com/earthsnap/" target="_blank" rel="noreferrer noopener">EarthSnap</a>, a free app brought to you by <a href="https://www.earth.com/author/eralls/" target="_blank" rel="noreferrer noopener">Eric Ralls</a> and Earth.com.



-----

Arctic kelp is absorbing toxic metals from melting glaciers

The Arctic is changing fast. Ancient ice is melting, glaciers...

Earth has faced many climate challenges, but none compare to the catastrophe that unfolded 250 million years ago. The End-Permian Event (EPE) stands as the most severe extinction in history, wiping out more than 80% of marine species and devastating life on land. 



Scientists have extensively studied its effects on ocean ecosystems, but the impact of mass extinction on forests remains less clear.



A team of researchers from University College Cork (<a href="https://www.ucc.ie/en/" target="_blank" rel="noreferrer noopener">UCC</a>), the <a href="https://uconn.edu" target="_blank" rel="noreferrer noopener">University of Connecticut</a>, and the <a href="https://www.nhm-wien.ac.at" target="_blank" rel="noreferrer noopener">Natural History Museum</a> of Vienna has uncovered how plants responded to this crisis. 



Their findings reveal that ecosystem recovery was slow, complex, and shaped by extreme climate swings. 



By studying fossilized plants and rocks from the Sydney Basin in Australia, the team reconstructed a multi-million-year journey of forest <a href="https://www.earth.com/news/natures-climate-solutions-mixed-forests-store-more-carbon/" target="_blank" rel="noreferrer noopener">survival</a>, extinction, and eventual regrowth.



<h2 class="wp-block-heading" id="h-worst-mass-extinction-in-history">Worst mass extinction in history</h2>



The End-Permian Event, which occurred around 252.3 to 251.9 million years ago, caused the collapse of gymnosperm-supported ecosystems. 



Over 80% of ocean species vanished, making it the most severe mass extinction ever recorded. While its effects on marine life are well documented, its impact on land <a href="https://www.earth.com/news/forests-play-an-overlooked-role-in-the-climate-system/" target="_blank" rel="noreferrer noopener">ecosystems</a> has remained unclear.



Researchers examined fossilized plants and rocks from eastern Australia’s Sydney Basin, a region that was once located near the South Pole (∼70°S). 



Using sedimentology, biostratigraphy, and stable carbon isotope analysis, they traced the timing and sequence of gymnosperm reestablishment across different latitudes. 



The results of the analysis highlight the staggered nature of recovery, rather than a smooth, uninterrupted process.



<h2 class="wp-block-heading" id="h-cooler-temperatures-helped-forests-recover">Cooler temperatures helped forests recover</h2>



After the End-Permian Event, the first plants to return were peltasperm seed ferns. They managed to build stable ecosystems, holding on for about 200,000 years. 



But <a href="https://www.earth.com/news/forests-are-still-fighting-climate-change-against-all-odds/" target="_blank" rel="noreferrer noopener">nature</a> didn’t stand still. Over time, voltzialean conifers took over, spreading across the land and thriving for an impressive 1.5 million years.



Then, disaster struck again. Around 250.3 to 249.6 million years ago, global temperatures soared during the "Late Smithian Thermal Maximum."



The heat was too much for the conifer forests, and they collapsed. Their disappearance left space for a new kind of survivor - pleuromeian lycophytes. These plants were tough. They didn’t need much to grow, making them perfect for harsh conditions.



For 800,000 years, these small, shrubby plants dominated the land. But nothing lasts forever. 



As temperatures finally began to drop during the "Smithian-Spathian Event" around 249.6 to 249.2 million years ago, the environment shifted once again, opening the door for a new wave of plant life to reshape the world.



<h2 class="wp-block-heading" id="h-forests-recover-but-extinction-is-forever">Forests recover, but extinction is forever</h2>



The SSE brought much-needed relief to struggling <a href="https://www.earth.com/news/forests-rich-tree-diversity-adapt-better-changing-climate/" target="_blank" rel="noreferrer noopener">ecosystems</a>. 



As the climate cooled, a new kind of plant took over - umkomasialean seed ferns. These plants thrived and spread across the high-latitude forests of Gondwana, shaping the landscapes of the Middle and Late Triassic. They helped stabilize ecosystems that had been in chaos for millions of years.



But recovery didn’t happen the same way everywhere. In many parts of the world, pleuromeian lycophytes - a type of tough, shrubby plant - quickly spread after the End-Permian Event. However, in the polar south, this process was much slower.



It took around 1.7 million years for these plants to finally establish themselves. This delay reveals that recovery from mass extinction wasn’t simple or predictable. Some places rebounded faster than others, while some struggled for much longer.



Even though forests eventually grew dense again, they were not the same. The plants that filled these new <a href="https://www.earth.com/news/trees-are-relocating-in-a-race-against-global-warming/" target="_blank" rel="noreferrer noopener">ecosystems</a> were completely different from those that had dominated before the extinction. Nature rebuilt itself, but in a way no one could have expected.



“The term ‘recovery’ can be misleading. Forests recover eventually, but extinction is forever," said Dr. Chris Mays, leader of the Mass Extinction Group at University College Cork.



<h2 class="wp-block-heading" id="h-lessons-from-ancient-forest-extinction">Lessons from ancient forest extinction</h2>



Studying how ancient ecosystems recovered from extreme climate shifts gives us clues about what might happen to plants today. The way they adapted back then can help scientists predict how modern plant life will respond to environmental changes.



Plants do much more than just grow. They form the foundation of nature’s balance, providing food for animals and humans alike. 



They also help regulate the Earth's climate by absorbing carbon dioxide and producing oxygen. When plants thrive, ecosystems stay stable. When they struggle, the entire planet feels the impact.



“This research highlights how crucial plants are, not just as the base of land food chains, but also as natural carbon sinks that stabilize Earth’s climate,” explained UCC researcher Marcos Amores, the study’s lead author.



“The disruption of these systems can have impacts lasting hundreds of thousands of years, so protecting today’s <a href="https://www.earth.com/news/forests-face-rising-damage-risks-as-their-diversity-dwindles/" target="_blank" rel="noreferrer noopener">ecosystems</a> is more important than ever.”



Earth’s past reveals a clear lesson: nature can recover, but it takes time. The resilience of plant life has shaped the world we know today, making conservation efforts essential for the future of our ecosystems.



The study is published in the journal <a href="https://pubs.geoscienceworld.org/gsa/gsabulletin/article-abstract/doi/10.1130/B38017.1/652555/Age-controlled-south-polar-floral-trends-show-a?redirectedFrom=fulltext" target="_blank" rel="noreferrer noopener">Geological Society of America Bulletin</a>.



-----



Like what you read? <a href="https://www.earth.com/subscribe/" target="_blank" rel="noreferrer noopener">Subscribe to our newsletter</a> for engaging articles, exclusive content, and the latest updates.&nbsp;



Check us out on <a href="https://www.earth.com/earthsnap/" target="_blank" rel="noreferrer noopener">EarthSnap</a>, a free app brought to you by <a href="https://www.earth.com/author/eralls/" target="_blank" rel="noreferrer noopener">Eric Ralls</a> and Earth.com.



-----

How forests rose again after the planet’s most extreme extinction

Earth has faced many climate challenges, but none compare to...

Imagine biting into a juicier, tastier tomato or cooking with an eggplant that’s not just flavorful but also larger. Scientists have made a discovery that could bring this to reality by identifying genes that control fruit size.



Researchers at Johns Hopkins University (<a href="https://www.jhu.edu/" target="_blank" rel="noreferrer noopener">JHU</a>) and Cold Spring Harbor Laboratory (<a href="https://www.cshl.edu/" target="_blank" rel="noreferrer noopener">CSHL</a>) have mapped genetic sequences in tomatoes and eggplants, paving the way for the development of new, improved varieties.



Their findings, published in Nature, could transform agriculture, particularly in regions where local varieties are too small to support commercial production.



<h2 class="wp-block-heading" id="h-understanding-gene-modification-the-basics">Understanding gene modification - the basics</h2>



Gene modification for plants is basically science giving nature a little upgrade. Scientists tweak plant DNA to make crops stronger, more nutritious, or resistant to pests and harsh weather. 



Instead of waiting generations for traditional breeding to get the perfect traits, genetic engineering speeds up the process. 



For example, some modified crops can <a href="https://www.earth.com/news/insect-populations-dramatically-declining-around-the-world-rising-temperatures/" target="_blank" rel="noreferrer noopener">fight off insects</a> without needing pesticides, while others grow in salty soil or survive droughts. 



In this instance, modifying the genes of tomato plants will provide bigger and better tomatoes.



This tech has already changed farming, making it more efficient and reducing the need for chemical sprays that can harm the environment.



<h2 class="wp-block-heading" id="h-changing-agriculture-with-one-seed">Changing agriculture with one seed</h2>



“Once you’ve done the <a href="https://www.earth.com/news/boosting-crop-colors-with-gene-editing-can-improve-weed-control/" target="_blank" rel="noreferrer noopener">gene editing</a>, all it takes is one seed to start a revolution,” said Michael Schatz, a geneticist at Johns Hopkins University and co-lead author of the study. 



“With the right approvals, we could mail an engineered seed to Africa or anywhere it’s needed and open up entirely new agricultural markets. There’s huge potential to translate these advances into real-world impact.”



The study is part of a larger initiative to map the full genomes of 22 crop plants within the nightshade family, which includes tomatoes, <a href="https://www.earth.com/news/crops-of-the-future-potatoes-that-thrive-in-heatwaves/" target="_blank" rel="noreferrer noopener">potatoes</a>, and eggplants.



The researchers used computational analysis to compare genetic maps and track how genes evolved. They discovered that, over time, more than half of these genes had been duplicated.



<h2 class="wp-block-heading" id="h-tracing-genetic-changes-over-time">Tracing genetic changes over time</h2>



“Over tens of millions of years, there’s this constant churn of DNA sequences being added and lost,” Schatz explained. 



“The same process can occur for gene sequences, where entire genes duplicate or disappear. When we started looking, we noticed these changes were very widespread, but we didn’t yet know what those changes meant for the plants.”



To answer that question, researchers at the Boyce Thomson Institute used CRISPR-Cas9 technology to edit these genes. Scientists at Cold Spring Harbor then grew the <a href="https://www.earth.com/news/engineered-gmo-plants-make-baby-formula-healthy-as-breast-milk/" target="_blank" rel="noreferrer noopener">engineered plants</a> to observe the results.



The duplicated genes, known as paralogs, turned out to be essential for traits like fruit size, shape, and flowering time. 



One experiment involved turning off both copies of a gene called CLV3 in the forest nightshade, a plant native to Australia. 



The result was that misshapen, “weird, bubbly, disorganized” fruits were formed. These wouldn’t be viable for grocery stores. However, tweaking just one copy of the gene led to plants with larger fruits.



<h2 class="wp-block-heading" id="h-genetic-treasure-map-for-tomatoes">Genetic treasure map for tomatoes</h2>



“Having full genome sequences for these species is like having a new treasure map,” said Katharine Jenike, who helped assemble the genome sequences as a Ph.D. student in Schatz’s lab.



“We can see where and when one genetic path diverges from another and then explore that place in the genetic information where we wouldn’t have thought to look. This allowed us to find the size-genes in a really unexpected place.”



One of the most exciting discoveries came from the African eggplant, a <a href="https://www.earth.com/news/engineered-plant-microbiomes-the-future-of-crop-protection/" target="_blank" rel="noreferrer noopener">crop</a> grown across Africa and Brazil. Scientists identified a gene, SaetSCPL25-like, which controls the number of seed cavities, or locules, inside the fruit. 



When they edited this gene in tomatoes, they found that increasing the number of locules resulted in larger tomatoes.



<h2 class="wp-block-heading" id="h-tomatoes-eggplants-and-genes">Tomatoes, eggplants, and genes</h2>



These findings suggest that careful gene editing could lead to larger, more commercially viable tomatoes and eggplants.



“This work shows the importance of studying many species together. We leveraged decades of work in tomato genetics to rapidly advance African eggplants, and along the way we found entirely new genes in African eggplants that reciprocally advance tomatoes," Schatz explained.



"We call this ‘pan-genetics,’ and it opens endless opportunities to bring many new fruits, foods, and flavors to dinner plates around the world.”



With continued research and the right regulatory steps, these discoveries could change how we grow and consume some of our favorite fruits and vegetables in the years ahead.



<h2 class="wp-block-heading" id="h-future-of-tomato-plants-and-gene-editing">Future of tomato plants and gene editing</h2>



Beyond simply increasing fruit size, this research has broader implications for global agriculture. 



In many parts of the world, farmers struggle with low-yield crops that are not suitable for large-scale farming. 



With gene editing, scientists could tailor plants to specific environments, making them more resistant to climate change, pests, and diseases.



By using advanced genetic tools, researchers hope to create crops that not only grow larger but also require fewer resources, such water and fertilizers.



This could make <a href="https://www.earth.com/news/mixed-cover-crops-may-be-the-future-of-sustainable-farming/" target="_blank" rel="noreferrer noopener">farming more sustainable</a> and reduce environmental impacts.



Future studies may focus on improving taste, nutritional value, and shelf life, which would ensure that these new varieties don’t just benefit farmers but also provide better food options for consumers.



The full study was published in the journal <a href="https://www.nature.com/articles/s41586-025-08619-6" target="_blank" rel="noreferrer noopener">Nature</a>.



-----



Like what you read? <a href="https://www.earth.com/subscribe/" target="_blank" rel="noreferrer noopener">Subscribe to our newsletter</a> for engaging articles, exclusive content, and the latest updates.&nbsp;



Check us out on <a href="https://www.earth.com/earthsnap/" target="_blank" rel="noreferrer noopener">EarthSnap</a>, a free app brought to you by <a href="https://www.earth.com/author/eralls/" target="_blank" rel="noreferrer noopener">Eric Ralls</a> and Earth.com.



-----

Gene modification can create bigger, better tomatoes, but should we do it?

Imagine biting into a juicier, tastier tomato or cooking with...

In the vast, arid landscapes where water is scarce, only the toughest plants survive. Among them, the agave plant stands out - not only for its role in tequila production but also for its remarkable ability to store and retain water.



Scientists have long studied how desert plants adapt to extreme conditions. Now, a study using advanced imaging techniques has uncovered deeper insights into the agave’s survival mechanisms.



The researchers used special imaging technology to see how agave plants store and use water. They found that these plants keep moisture at both the leaf and tiny molecular levels. This discovery could help create <a href="https://www.earth.com/news/saving-earths-most-endangered-plants-from-extinction-proving-difficult-botanic-gardens/" target="_blank" rel="noreferrer noopener">crops</a> that need less water and improve how processed foods stay fresh.



The results not only highlight the resilience of agave plants but also point to potential solutions for global food security in the face of climate change.



<h2 class="wp-block-heading" id="h-analyzing-agave-hydration-levels">Analyzing agave hydration levels</h2>



The scientists used terahertz spectroscopy, a non-invasive technique that falls between microwave and mid-infrared technologies, to analyze the hydration levels of agave <a href="https://www.earth.com/news/plants-may-stop-absorbing-carbon-if-temperatures-continue-to-rise/" target="_blank" rel="noreferrer noopener">plants</a>.



This method allows researchers to map water distribution within plant tissues and observe how fructans, a type of sugar, help retain moisture at the molecular level.



“Understanding how plants adapt to dry conditions could lead to better farming practices and be used to develop crops that require less water,” said Monica Ortiz-Martinez from the Centro de Investigaciones en Optica (<a href="https://www.cio.mx/en/" target="_blank" rel="noreferrer noopener">CIO</a>) in Mexico.



“This could lead to higher crop yields with lower water consumption, benefiting farmers, food production and global food security.”



<h2 class="wp-block-heading" id="h-measuring-plant-hydration-levels">Measuring plant hydration levels</h2>



Terahertz waves, which exist between microwaves and the mid-infrared spectrum, have unique interactions with water. 



Since water strongly absorbs terahertz radiation, the researchers used this property to measure hydration levels within agave tissues. The technique allowed them to visualize water distribution and examine how fructans function at the molecular level.



The study, published in Applied Optics, demonstrates that terahertz spectroscopy is a non-invasive tool for plant analysis. 



The researchers found that agave plants survive harsh conditions by storing water in specialized leaf structures. Additionally, fructans act as molecular sponges, ensuring that moisture remains available even in extreme drought.



“In the food industry, our findings on agave fructans and their exceptional water-binding properties could be used to develop new food ingredients that improve moisture retention, texture and shelf life, especially in dried or processed foods,” said Enrique Castro-Camus from CIO. 



“This could lead to healthier, longer-lasting food products with fewer artificial preservatives.”



<h2 class="wp-block-heading" id="h-intersection-of-biology-and-food-science">Intersection of biology and food science</h2>



The study began as a collaboration between CIO’s Applied Terahertz Science group and June Simpson at Centro de Investigaciones Avanzadas (<a href="https://www.cinvestav.mx/irapuato/investigacion/directorio-de-investigacion/June-Kilpatrick-Simpson-Williamson" target="_blank" rel="noreferrer noopener">CINVESTAV</a>). Their focus was on water distribution in agave leaves and the role of fructans in hydration. 



Around the same time, CIO researchers partnered with Socorro Villanueva from Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco (<a href="https://ciatej.mx" target="_blank" rel="noreferrer noopener">CIATEJ</a>) to explore how fructans protect frozen foods from damage. These projects merged to provide a comprehensive understanding of agave’s survival mechanisms.



For their analysis, the researchers used a time-domain terahertz spectrometer with a femtosecond fiber laser and sub-millimeter pixel resolution.



Thin leaf slices were placed between a terahertz emitter and detector, enabling hydration mapping through water absorption measurements. The spectrometer was later reconfigured to analyze fructan solutions in greater detail.



“Our research introduces several key innovations in the study of <a href="https://www.earth.com/news/predicting-how-climate-change-will-alter-plant-growth-cycles/" target="_blank" rel="noreferrer noopener">plant</a> hydration using terahertz technology,” said Ortiz-Martinez.



“One of the most significant advancements is non-invasive water detection - unlike traditional methods that require cutting, drying and weighing plant samples, terahertz imaging enables real-time hydration analysis without damaging the plant.”



<h2 class="wp-block-heading" id="h-how-agave-plants-retain-water">How agave plants retain water</h2>



The study revealed that agave leaves have a unique water storage system. Their inner core remains hydrated, while the outer layer acts as a barrier to <a href="https://www.earth.com/news/new-understanding-of-light-detection-in-plants-may-revolutionize-farming/" target="_blank" rel="noreferrer noopener">minimize water loss</a>. 



Fructans play a critical role in this process by forming porous structures that trap and retain water molecules. This water retention capability is stronger than that of other sugars, making fructans vital for agave survival.



By combining tissue-level storage with molecular water retention, agaves have evolved into one of the most drought-resistant plants. These findings could have significant implications for crop cultivation in water-scarce regions.



<h2 class="wp-block-heading" id="h-expanding-non-invasive-plant-monitoring">Expanding non-invasive plant monitoring</h2>



Researchers now aim to expand terahertz spectroscopy applications to study drought-resistant mechanisms in agave and other <a href="https://www.earth.com/news/soil-bacteria-help-plants-stay-calm-and-keep-growing/" target="_blank" rel="noreferrer noopener">plant species</a>. The goal is to understand how different crops manage hydration, particularly those essential for food security.



Future developments may lead to a portable terahertz system for use in fields and greenhouses. Machine learning algorithms could further enhance this technology by analyzing terahertz images in real-time, enabling the detection of drought stress before visible signs appear.



The study highlights the importance of collaboration among experts in optics, plant physiology and food science. Researchers believe that integrating these disciplines will lead to practical applications for agriculture and food production.



“By advancing non-invasive plant monitoring methods, our research lays the foundation for smarter, more sustainable <a href="https://www.earth.com/news/warming-climates-force-plants-to-compete-with-each-other/" target="_blank" rel="noreferrer noopener">agricultural practices</a>, ultimately benefiting both farmers and consumers while helping to conserve natural resources for future generations,” said Castro-Camus.



The study is published in the journal <a href="https://opg.optica.org/ao/abstract.cfm?uri=ao-64-8-2057" target="_blank" rel="noreferrer noopener">Applied Optics</a>.



-----



Like what you read? <a href="https://www.earth.com/subscribe/" target="_blank" rel="noreferrer noopener">Subscribe to our newsletter</a> for engaging articles, exclusive content, and the latest updates.&nbsp;



Check us out on <a href="https://www.earth.com/earthsnap/" target="_blank" rel="noreferrer noopener">EarthSnap</a>, a free app brought to you by <a href="https://www.earth.com/author/eralls/" target="_blank" rel="noreferrer noopener">Eric Ralls</a> and Earth.com.



-----

Agave plants: Nature’s answer to water conservation

In the vast, arid landscapes where water is scarce, only...

Conventional wisdom has long held that iron oxides merely trap phosphorus in the environment. Yet new research has uncovered a more dynamic role for these minerals in driving the conversion of organic phosphorus into the inorganic form that plants require for growth. 



A new study led by <a href="https://www.northwestern.edu/" target="_blank" rel="noreferrer noopener">Northwestern University</a> reveals that this activity can occur at rates on par with biological enzymes, overturning assumptions about how phosphorus becomes available in soils and sediments.



<h2 class="wp-block-heading" id="h-the-fate-of-phosphorus">The fate of phosphorus </h2>



Study senior author Ludmilla Aristilde is an associate professor of environmental engineering at Northwestern.&nbsp;



“Phosphorus is essential to all forms of life. The backbone of DNA contains phosphate. So, all life on Earth, including humans, depends on phosphorus to thrive,” said Aristilde.



“That’s why we need <a href="https://www.earth.com/news/how-do-plants-produce-their-own-nitrogen-fertilizer/" target="_blank" rel="noreferrer noopener">fertilizers</a> to increase phosphorus in soils. Otherwise, the crops we need to feed our planet will not grow. There is a profound interest in understanding the fate of phosphorus in the environment.”



<h2 class="wp-block-heading" id="h-availability-of-inorganic-phosphorus">Availability of inorganic phosphorus</h2>



Most soil phosphorus exists in organic form, bound to carbon atoms in plant, animal, or microbial remains. Plants, however, need inorganic phosphorus - the sort found in common fertilizers - for <a href="https://www.earth.com/news/how-do-plants-grow-more-branches-and-become-bushy/" target="_blank" rel="noreferrer noopener">growth</a> and survival. 



Traditional thinking held that microbial and plant enzymes alone could break down organic phosphorus, releasing the inorganic portion.



Prior work by Aristilde’s group demonstrated that iron oxides, which are abundant in <a href="https://www.earth.com/news/world-soil-day-2024-protecting-our-planets-lifeline/" target="_blank" rel="noreferrer noopener">soils</a> and sediments, can likewise facilitate this transformation. 



In the new study, lead author and PhD student Jade Basinski, along with other members of Aristilde’s lab, sought to determine just how much phosphorus these minerals could release and how efficiently they function in various scenarios.



<h2 class="wp-block-heading" id="h-the-role-of-iron-oxides">The role of iron oxides</h2>



To investigate, the researchers examined three frequently occurring iron oxides: goethite, hematite, and ferrihydrite. They exposed these minerals to different ribonucleotides, the building blocks of RNA, which contain phosphorus in organic bonds.&nbsp;



By measuring the appearance of inorganic phosphorus both in the surrounding solution and on the mineral surfaces, the team assessed the extent of the reaction and how quickly it proceeded. 



The researchers also varied reaction times and the concentration of ribonucleotides to observe how these conditions influenced the process.



The findings showed that iron oxides are capable of driving the conversion of organic phosphorus to inorganic phosphorus at rates comparable to enzymes.&nbsp;



<h2 class="wp-block-heading" id="h-iron-oxides-as-catalytic-traps">Iron oxides as ‘catalytic traps’</h2>



Moreover, the researchers uncovered a particular twist: some minerals can hold on to the newly released inorganic phosphorus, effectively sequestering it on their surfaces.&nbsp;



“We concluded that iron oxides are ‘catalytic traps’ because they catalyze the reaction to remove phosphate from organic compounds but trap the phosphate product on the mineral surface,” Aristilde said.&nbsp;



“Enzymes don’t trap the product; they make everything available. We found goethite was the only mineral that didn’t trap all the phosphorus after the reaction.”



While ferrihydrite and hematite tended to keep the cleaved phosphorus locked in place, goethite proved more inclined to release it back into the surrounding medium.&nbsp;



Hematite was notably effective at processing ribonucleotides containing one phosphorus, whereas goethite showed heightened performance with those containing three. 



These differences may reflect each mineral’s specific surface chemistry or structural characteristics, though the precise reasons remain unknown.



<h2 class="wp-block-heading" id="h-implications-for-crops-and-plant-growth">Implications for crops and plant growth</h2>



This discovery has far-reaching implications for agricultural practices. Farmers worldwide have long relied on adding phosphorus to fields to promote plant growth, yet phosphorus is a finite resource sourced primarily from phosphate rock in places such as the United States, Morocco, and China. 



As supply concerns grow, identifying alternative means to free up naturally occurring organic phosphorus could help maintain affordable food production.



Aristilde’s group believes that a deeper understanding of why goethite more readily releases inorganic phosphorus might guide the design of synthetic catalysts or soil amendments.&nbsp;



“Our work is providing a steppingstone for designing and engineering a synthetic catalyst as a way to recycle phosphorus,” Aristilde said.&nbsp;



“We uncovered a reaction that’s happening naturally. The dream will be to leverage our findings as a way to make catalysts to contribute to the production of fertilizers for our food security.”



<h2 class="wp-block-heading" id="h-future-research-directions">Future research directions</h2>



The next step will be to discover precisely how different mineral compositions drive these catalytic reactions. 



Researchers initially hypothesized that the shape or structure of the phosphorus compounds themselves might determine the release rates, but the data did not support that idea. 



Now, attention is turning to the internal chemistry of each mineral, with the hope that clarifying these fine-scale details may point to new pathways for managing soil phosphorus.



In revealing that iron oxides can act as powerful catalysts for phosphorus release, the Northwestern study challenges the notion of these minerals as inert storage sites. Instead, they emerge as dynamic participants in a process vital to crop growth and, ultimately, the global <a href="https://www.earth.com/news/futuristic-food-supply-transforming-co2-into-protein/" target="_blank" rel="noreferrer noopener">food supply</a>. 



Understanding this process better could help scientists and farmers find sustainable solutions for using phosphorus more wisely, ensuring this critical nutrient remains within reach for future generations.



The study is published in the journal <a href="http://dx.doi.org/10.1021/acs.est.4c12049" target="_blank" rel="noreferrer noopener">Environmental Science &amp; Technology</a>.&nbsp;



Image Credit: Ludmilla Aristilde/Northwestern University



-----



Like what you read? <a href="https://www.earth.com/subscribe/" target="_blank" rel="noreferrer noopener">Subscribe to our newsletter</a> for engaging articles, exclusive content, and the latest updates.



Check us out on <a href="https://www.earth.com/earthsnap/" target="_blank" rel="noreferrer noopener">EarthSnap</a>, a free app brought to you by <a href="https://www.linkedin.com/in/eric-ralls/" target="_blank" rel="noreferrer noopener">Eric Ralls</a> and Earth.com.



-----

Phantom nutrient: The secret force that fuels plant growth

Conventional wisdom has long held that iron oxides merely trap...

Endangered animals

News coming your way