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...

Hemitriccus kaempferi 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/social-bonds-are-more-advantageous-for-long-lived-animals/">animals</a> too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network. Kaempfer's tody-tyrant (Hemitriccus kaempferi) is a rare species of bird in the family Tyrannidae. It is endemic to the Atlantic forest in southeastern Brazil. It was known only from two specimens until the 1990s, when it was finally observed in life. It is protected under Brazilian law and it is on the United States' Endangered Species List.
Kaempfer's tody-tyrant is 10 centimeters long and olive greenin color. The eyes are encircled with pale

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.  poorly known endemic of low- land Atlantic Forest of north-eastern Santa Catarina, Brazil that was not even generally afforded speciﬁc status until the work of Fitzpatrick (1976).

Hemitriccus kaempferi

Hemitriccus kaempferi NatureServe Explorer Species Reports -- NatureServe Explorer is...

Heraclides aristodemus ponceanus 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/lake-st-clair-of-the-u-s-and-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 -- Heraclides aristodemus ponceanus 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=2d147688f8a544169a40f033ee3e4a74&amp;aqs=edge.0.69i59j69i57j69i60l2j0j69i60j0.1207j0j4&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world. The Schaus swallowtail is found only in Florida. It historically occurred from the greater Miami area south through the Florida Keys to Lower Matecumbe Key (Miami-Dade and Monroe Counties) (Klots 1964, Minno and Emmel 1993). It is currently restricted to only a few remnant tropical hardwood hammock sites on the south Florida mainland (the Deering Estate at Cutler), northern Key Largo, and several small islands within Biscayne National Park.

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. Papilio aristodemus, the Schaus' swallowtail or island swallowtail, is a species of American butterfly in the family Papilionidae. It is found in southern Florida with subspecies in the Bahamas, Hispaniola, and Cuba. Historically it occurred in tropical hardwood hammock from South Miami to Lower Matecumbe Key, Florida. It is named in honor of William Schaus.

Heraclides aristodemus ponceanus

Heraclides aristodemus ponceanus NatureServe Explorer Species Reports -- NatureServe Explorer...

Herpailurus (=Felis) yagouaroundi cacomitli 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/lake-st-clair-of-the-u-s-and-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 -- 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=ae110fa94ea14e62b45bfcf6931423a5&amp;aqs=edge.0.69i59j69i57j69i60l3j0l2.1373j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world. The jaguarundi is a wild cat native to the Americas. Its range extends from central Argentina in the south to northern Mexico, through Central and South America east of the Andes. The jaguarundi is a medium-sized cat of slender build. Its coloration is uniform with two color morphs, gray and red. It has an elongated body, with relatively short legs, a small, narrow head, small, round ears, a short snout, and a long tail, resembling mustelids in these respects. It is around twice as large as a domestic cat, reaching nearly 36 cm at the shoulder, and weighs 3.5–7 kg.

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.

Herpailurus (=Felis) yagouaroundi cacomitli

Herpailurus (=Felis) yagouaroundi cacomitli NatureServe Explorer Species Reports -- NatureServe...

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 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.

Herpailurus (=Felis) yagouaroundi panamensis

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

Herpailurus (=Felis) yagouaroundi tolteca

Hesperia dacotae Hesperia dacotae 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 -- Hesperia dacotae 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. Hesperia dacotae, the Dakota skipper, is a small to medium-sized North American butterfly. It has a wingspan of approximately one inch and the antennae form a hook. The male’s wings are a tawny-orange to brown on the forewings with a prominent mark and dusty yellow on the lower part of the wing. The female wing is a darker brown orange and white spots on the forewing margin.

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 adult Dakota skippers are active for only three weeks in June and July which is their total lifespan. Their eggs, which are laid on the underside of leaves, are hatched in July and the caterpillar larvae feed on native grass until they go dormant in late summer. The caterpillar larvae then winter in shelters very close to the ground. In spring they come out of dormancy in their adult form. They are found in healthy natural tall grass and prairie grass from <a href="https://www.bing.com/search?q=Minnesota%20wikipedia&amp;form=WIKIRE">Minnesota</a> to <a href="https://www.bing.com/search?q=Saskatchewan%20wikipedia&amp;form=WIKIRE">Saskatchewan</a>. They are now considered extirpated from <a href="https://www.bing.com/search?q=Illinois%20wikipedia&amp;form=WIKIRE">Illinois</a> and <a href="https://www.bing.com/search?q=Iowa%20wikipedia&amp;form=WIKIRE">Iowa</a>. The largest most stable population is now found in <a href="https://www.bing.com/search?q=North%20Dakota%20wikipedia&amp;form=WIKIRE">North Dakota</a>.

Hesperia dacotae

Hesperia dacotae Hesperia dacotae NatureServe Explorer Species Reports -- NatureServe...

Hesperia leonardus montana 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. Hesperia leonardus, the Leonard's skipper, is a butterfly of the family Hesperiidae. There are three subspecies. Next to the nominate species, these are the Pawnee skipper, which is found in North America from western Montana and south-eastern Saskatchewan east to Minnesota, south to central Colorado and Kansas. Leonard's skipper ranges from Nova Scotia and Maine west through southern Ontario and the Great Lakes region to Minnesota, south to North Carolina, Louisiana and Missouri and the Pawnee montane skipper is endemic to the South Platte River drainage of Colorado.

ITIS Reports -- Hesperia leonardus montana 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=2d147688f8a544169a40f033ee3e4a74&amp;aqs=edge.0.69i59j69i57j69i60l2j0j69i60j0.1207j0j4&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.

Hesperia leonardus montana

Hesperia leonardus montana NatureServe Explorer Species Reports -- NatureServe Explorer...

Heterelmis comalensis 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. Heterelmis comalensis is a rare species of beetle known by the common name Comal Springs riffle beetle. It is endemic to Texas in the United States, where it occurs in only two springs. It is a federally listed endangered species of the United States.

ITIS Reports -- Heterelmis comalensis 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=2d147688f8a544169a40f033ee3e4a74&amp;aqs=edge.0.69i59j69i57j69i60l2j0j69i60j0.1207j0j4&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world. Heterelmis comalensis is a rare species of beetle known by the common name Comal Springs riffle beetle. It is endemic to Texas in the United States, where it occurs in only two springs. It is a federally listed endangered species of the United States.

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.

Heterelmis comalensis

Heterelmis comalensis NatureServe Explorer Species Reports -- NatureServe Explorer is...

Himantopus mexicanus knudseni 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=2d147688f8a544169a40f033ee3e4a74&amp;aqs=edge.0.69i59j69i57j69i60l2j0j69i60j0.1207j0j4&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 Hawaiian stilt (Himantopus mexicanus knudseni) is an endangered Hawaiian subspecies of the black-necked stilt (H. mexicanus) species. It is a long-legged, slender shorebird with a long, thin beak. Other common names include the Hawaiian black-necked stilt, the aeʻo (from a Hawaiian name for the bird and word for stilts), the kukuluaeʻo (a Hawaiian name for the bird and word for “one standing high”), or it may be referred to as the Hawaiian subspecies of the black-necked stilt. The Hawaiian stilt is an endangered Hawaiian subspecies of the black-necked stilt species. It is a long-legged, slender shorebird with a long, thin beak. Other common names include the Hawaiian black-necked stilt, the aeʻo, the kukuluaeʻo, or it may be referred to as the Hawaiian subspecies of the black-necked stilt.

Himantopus mexicanus knudseni

Himantopus mexicanus knudseni NatureServe Explorer Species Reports -- NatureServe Explorer...

Himantopus novaezelandiae 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/lake-st-clair-of-the-u-s-and-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.  large wader in the avocet and stilt family Recurvirostridae. The species is endemic to New Zealand. Adults are 40 cm long. They have very long red legs, a long thin black bill and black plumage.

ITIS Reports -- Himantopus novaezelandiae 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=2d147688f8a544169a40f033ee3e4a74&amp;aqs=edge.0.69i59j69i57j69i60l2j0j69i60j0.1207j0j4&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world. The black stilt or kakī is a wading bird found in New Zealand. It is one of the world's rarest birds, with 169 adults surviving in the wild as of May 2020. Adult kakī have distinctive black plumage, long pink legs, and a long thin black bill. Black stilts largely breed in the Mackenzie Basin in the South Island, and are threatened by introduced feral cats, ferrets, and hedgehogs as well as habitat degradation from hydroelectric dams, agriculture, and invasive weeds.

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.

Himantopus novaezelandiae

Himantopus novaezelandiae NatureServe Explorer Species Reports -- NatureServe Explorer is...

Hippocamelus antisensis 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 -- Hippocamelus antisensis 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=2d147688f8a544169a40f033ee3e4a74&amp;aqs=edge.0.69i59j69i57j69i60l2j0j69i60j0.1207j0j4&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world. Other common names of Hippocamelus antisensis include North Andean deer, turuka, taruga, guamal, Peruvian huemul, and North huemul. A captive specimen of H.antisensis lived for 10 years and 7 months (Nowak 1983). Another species of Andean deer is recognized, Hippocamelus bisulcus. It is found further south in the Andes of Chile and western Argentina.

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 huemul (Hippocamelus bisulcus), also known as the South Andean deer, is found in Chile and Argentina. Huemuls live in groups of varying size, typically of two or three individuals, but sometimes as many as eleven. In the past, groups of over a hundred deer were reported. Groups are made up of a female and her young, while males are often alone.
Huemul occur in several national parksin Chile and neighbouring parts of Argentina and have been

Hippocamelus antisensis

Hippocamelus antisensis NatureServe Explorer Species Reports -- NatureServe Explorer is...

Hippocamelus bisulcus 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/lake-st-clair-of-the-u-s-and-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. The south Andean deer, also known as the southern guemal, Chilean huemul or güemul, is an endangered species of deer native to the mountains of Argentina and Chile. It is one of two mid-sized deer in the Hippocamelus genus and ranges across the high mountainsides and cold valleys of the Andes. The distribution and habitat, behaviour, and diet of the deer have all been the subject of study. The viability of the small remaining population is an outstanding concern to researchers. The south Andean deer is well-adapted to broken, difficult terrain with a stocky build and short legs. A brown to greyish-brown coat tapers to white undersides and a white marked throat; the long, curled hairs of the coat provide protection against cold and moisture. Does are 70 to 80 kg. (154-176 lbs.) and stand 80 cm. (31 in.), while bucks are 90 kg (198 lbs.) and 90 cm (35 in). (Other weight suggestions are lower.) There is no sexual size difference amongst fawns, which are born unspotted.

ITIS Reports -- Hippocamelus bisulcus 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=2d147688f8a544169a40f033ee3e4a74&amp;aqs=edge.0.69i59j69i57j69i60l2j0j69i60j0.1207j0j4&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.

Hippocamelus bisulcus

Hippocamelus bisulcus NatureServe Explorer Species Reports -- NatureServe Explorer is...

Hipposideros ridleyi 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/news/blue-butterflies-are-set-to-become-widespread-across-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 -- Hipposideros ridleyi 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=5f659eade0014394aa0ce71864b2d41b&amp;aqs=edge.0.69i59l2j69i57j0l3j69i60l3.2599j0j1&amp;pglt=43&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.

Hipposideros ridleyi

Hipposideros ridleyi NatureServe Explorer Species Reports -- NatureServe Explorer is...

Hippotragus niger variani 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 -- Hippotragus niger variani 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=ae110fa94ea14e62b45bfcf6931423a5&amp;aqs=edge.0.69i59j69i57j69i60l3j0l2.1373j0j9&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world. The giant sable antelope or royal sable antelope, also known in Portuguese as the palanca-negra-gigante, is a large, rare subspecies of the sable antelope native and endemic to the region between the Cuango and Luando Rivers in Angola.

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 giant sable antelope or royal sable antelope (Hippotragus niger variani), also known in Portuguese as the palanca-negra-gigante, is a large, rare subspecies of the sable antelope native and endemic to the region between the Cuango and Luando Rivers in Angola.
There was a great degree of uncertainty regarding the number of animals that survived during the Angolan Civil War. In January 2004, a group from the Centro de Estudos e Investigação Científica of the Catholic.

Hippotragus niger variani

Hippotragus niger variani NatureServe Explorer Species Reports -- NatureServe Explorer...

Huso dauricus 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=2d147688f8a544169a40f033ee3e4a74&amp;aqs=edge.0.69i59j69i57j69i60l2j0j69i60j0.1207j0j4&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world. The kaluga (Huso dauricus) is a large predatory sturgeon found in the Amur River basin. Also known as the river beluga, they are claimed to be the largest freshwater fish in the world, with a maximum size of at least 1,000 kg (2,205 lb) and 5.6 m (18.6 ft). The kaluga is one of the biggest of the sturgeon family. Like the slightly larger beluga, it spends part of its life in salt water. Unlike the beluga, this fish has 5 major rows of dermal scutes, nail-like teeth in its jaws, and feeds on salmon and other fish in the Amur. They have gray-green to black backs with a yellowish green-white underbelly. The kaluga has been hunted to near extinction for its valuable roe. Despite constant anti-poaching patrols, poachers still continue to catch the fish. Fishing for kaluga anywhere in the Amur River is an offense punishable by law. However, kalugas are known to have an aggressive nature, and instances of them toppling fishing boats and drowning fishermen have been reported, although no concrete evidence exists of them assaulting or hunting people.

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.

Huso dauricus

Huso dauricus NatureServe Explorer Species Reports -- NatureServe Explorer is...

Huso huso 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/lake-st-clair-of-the-u-s-and-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 -- Huso huso 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=0d098e05971c4fecb8a6e414444008ad&amp;aqs=edge.0.69i59j69i57j0l2j69i60l3.1083j0j1&amp;pglt=299&amp;FORM=ANNTA1&amp;PC=HCTS">North America</a> and the world. The beluga, also known as the beluga sturgeon or great sturgeon is a species of anadromous fish in the sturgeon family of order Acipenseriformes. It is found primarily in the Caspian and Black Sea basins, and formerly in the Adriatic Sea. Going on maximum size, it is the third most massive living species of bony fish. Heavily fished for the female's valuable roe, known as beluga caviar, wild populations have been greatly reduced by overfishing and poaching. " is the perfect complement to our treatment protocols. I find it balances the autonomic nervous system [and] is an excellent meditative and relaxation enhancer that can activate the higher levels of healing and can potentiate most other treatment modalities."Huso is a genus of large sturgeons from Eurasia. It contains two species, which both are critically endangered : Recent data indicate a polyphyletic origin of the genus Huso, and it is suggested that the two Huso species should be included in the genus Acipenser. ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera".

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.

Huso huso

Huso huso NatureServe Explorer Species Reports -- NatureServe Explorer is...

Hyaena hyaena barbara 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/lake-st-clair-of-the-u-s-and-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 -- 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=0d098e05971c4fecb8a6e414444008ad&amp;aqs=edge.0.69i59j69i57j0l2j69i60l3.1083j0j1&amp;pglt=299&amp;FORM=ANNTA1&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 striped hyena is a species of hyena native to North and East Africa, the Middle East, the Caucasus, Central Asia and the Indian subcontinent. It is listed by the IUCN as near-threatened, as the global population is estimated to be under 10,000 mature individuals which continues to experience deliberate and incidental persecution along with a decrease in its prey base such that it may come close to meeting a continuing decline of 10% over the next three generations. It is also the national animal of Lebanon.

The striped hyena (Hyaena hyaena) is a species of hyena native to North and East Africa, the Middle East, the Caucasus, Central Asia and the Indian subcontinent. It is listed by the IUCN as near-threatened, as the global population is estimated to be under 10,000 mature individuals which continues to experience deliberate and incidental persecution along with a decrease in its prey base such that it may come close to meeting a continuing decline of 10% over the next three generations.

Hyaena hyaena barbara

Hyaena hyaena barbara NatureServe Explorer Species Reports -- NatureServe Explorer...

Hybognathus amarus 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/lake-st-clair-of-the-u-s-and-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. The Rio Grande silvery minnow or Rio Grande minnow (Hybognathus amarus) is a small herbivorous <a href="https://www.bing.com/search?q=north+america&amp;cvid=0d098e05971c4fecb8a6e414444008ad&amp;aqs=edge.0.69i59j69i57j0l2j69i60l3.1083j0j1&amp;pglt=299&amp;FORM=ANNTA1&amp;PC=HCTS">North American</a> fish. It is one of the seven North American members of the genus Hybognathus, in the cyprinid family. The Rio Grande silvery minnow is one of the most endangered fish in North America, according to the U. S. Fish and Wildlife Service (USFWS). They were classified as endangered in the U.S. in 1994, and now are found in less than 5 percent of their natural habitat in the Rio Grande. Historically, the minnow was found from Española, New Mexico, to the Gulf of Mexico in Texas. Now it can only be seen between the Cochiti Dam and the Elephant Butte Reservoir.

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.

Hybognathus amarus

Hybognathus amarus NatureServe Explorer Species Reports -- NatureServe Explorer is...

While the Spanish explorers may have brought the first peach pits to North America, recent research reveals that the real credit for the fruit's widespread cultivation goes to the Indigenous communities of the continent.



The study, conducted by researchers at Penn State, sheds light on this often overlooked chapter of history.



<h2 class="wp-block-heading" id="h-indigenous-networks-and-the-spread-of-peaches">Indigenous networks and the spread of peaches</h2>



Jacob Holland-Lulewicz, the first author of the study and an assistant professor of anthropology at <a href="https://www.psu.edu" target="_blank" rel="noreferrer noopener">Penn State</a>, elaborated on the intensive care required for peaches to be productive.



This care includes finding appropriate places for plantation with abundant sunlight and proper soil drainage, along with regular pruning. 



The widespread <a href="https://www.earth.com/news/plants-have-sophisticated-strategies-to-balance-defense-and-growth/" target="_blank" rel="noreferrer noopener">cultivation</a> of peaches is a result of the Indigenous networks and land management practices - a fact that is often missed in narratives regarding the quick spread of peaches post-Spanish introduction.



<h2 class="wp-block-heading" id="h-samples-from-archeological-sites">Samples from archeological sites </h2>



The researchers meticulously examined historical documents that mentioned peaches such as the writings of French missionary explorer Jacques Marquette and English merchant Jonathan Dickinson. 



Radiocarbon dating, a method that measures the decay of radioactive carbon-14 atoms in organic material, was used to determine the approximate ages of peach pits and other organic samples from various archaeological sites.



<h2 class="wp-block-heading" id="h-spread-of-peaches-in-north-america">Spread of peaches in North America</h2>



The researchers found that by 1620, a hundred years after the Spanish arrival in Florida and Georgia's Oconee Valley, peaches likely spread across the Indigenous settlements throughout the interior southeast.



But these communities didn't just adopt the fruit. They bred new varieties - so many that they outnumbered those found in Europe during the same era.



The researchers identified what are possibly the oldest peaches in North America unearthed at a Muskogean farmstead in Oconee Valley dating back to between 1520 and 1550.



<h2 class="wp-block-heading" id="h-indigenous-influence-on-peaches">Indigenous influence on peaches</h2>



Study co-author Victor Thompson is a research professor of archaeology at the University of Georgia (<a href="https://www.uga.edu" target="_blank" rel="noreferrer noopener">UGA</a>) and executive director of the Georgia Museum of Natural History.



"Understanding the path that the introduction of species, such as peach trees, took through colonization and the role that Indigenous people and their long-term relationship with the environment played in shaping these histories demonstrates the importance of these events, people and processes to what becomes a broader American history,” said Thompson.



“Further, the fact that all of this work took place on museum specimens underscores the importance of maintaining these collections for future study.”



<h2 class="wp-block-heading" id="h-legacy-of-indigenous-communities">Legacy of Indigenous communities </h2>



At this point in our story, peaches had so intertwined with Indigenous history and culture that when the ancestors of the modern-day Muscogee (Creek) Nation were forcefully relocated from Georgia and Alabama in the 1800s, they took peaches with them.



Today, peaches continue to be grown as heritage crops by the Muscogee (Creek) Nation, with the act of growing and caring for them being a significant cultural practice.



<h2 class="wp-block-heading" id="h-climate-s-role-in-peach-cultivation">Climate's role in peach cultivation</h2>



Understanding the climatic factors that affect peach cultivation is pivotal for their <a href="https://www.earth.com/news/scientists-uncover-how-plants-grow-wider-not-just-taller/" target="_blank" rel="noreferrer noopener">successful growth</a>. Peaches thrive in regions with distinct seasonal variations, requiring cold winters to induce dormancy followed by warm springs to awaken the fruiting process. 



This adaptability explains their prevalence in temperate zones worldwide. However, climate change poses potential challenges, with rising temperatures and unpredictable frosts threatening the delicate balance necessary for peach production. 



The researchers emphasize the need for exploring cultivars resilient to climate fluctuations, ensuring the preservation of both traditional and newly developed peach varieties.



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



As the historical and anthropological perspectives have enriched our understanding of peach cultivation, future research may involve genetic studies and exploring innovative agricultural <a href="https://www.earth.com/news/electro-agriculture-grows-food-in-the-dark-with-94-less-land-required/" target="_blank" rel="noreferrer noopener">practices</a>.



With advances in biotechnology, scientists are unraveling the genome of peaches to identify traits that confer resistance to diseases and environmental stressors. This genetic insight is crucial for breeding programs aimed at improving yield and quality. 



Moreover, sustainable practices, such as permaculture and regenerative agriculture, are being explored to reduce <a href="https://www.earth.com/news/organic-farming-and-flower-strips-improve-honey-bee-health/" target="_blank" rel="noreferrer noopener">environmental impact</a>. 



So, the next time you enjoy a sweet, juicy peach, remember the Indigenous communities that played a key role in its journey.



Their extensive care and management not only introduced this beloved summer fruit to a new continent but also paved the way for its spread and the diversity we enjoy today.



The study is published in the journal <a href="https://www.nature.com/articles/s41467-024-52597-8" target="_blank" rel="noreferrer noopener">Nature Communications</a>.



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How peaches spread across North America and the world

While the Spanish explorers may have brought the first peach...

Have you ever paused to admire a morning glory? Just as their name suggests, these flowers open at sunrise and often close by afternoon or evening.



Despite their fragile appearance, a recent study from the University of Michigan suggests that morning glory plants are quite resilient. The team discovered that these plants can withstand the effects of weed killers and display resistance to damage from herbivorous insects.



In particular, morning glory plants were found to resist glyphosate - the active component in the herbicide RoundUp.



<h2 class="wp-block-heading" id="h-plant-resistance-to-insect-damage">Plant resistance to insect damage</h2>



Interestingly, the researchers found that plants which are susceptible to glyphosate are also susceptible to damage from insects. This implies that glyphosate can disrupt the co-evolution of plants and their insect adversaries.



Study lead author&nbsp;Grace Zhang is a U-M doctoral student working with&nbsp;Regina Baucom, a professor in the Department of Ecology and Evolutionary Biology.



"When people think about herbicides and study them in <a href="https://www.earth.com/news/insects-boost-plant-evolution-in-surprising-ways/" target="_blank" rel="noreferrer noopener">plants</a>, they think about herbicide resistance," said Zhang. 



"Resistance is a big problem, tolerance is a big problem. But beyond that, we don't really have a great idea of how herbicides impact plant evolution in general, and also how it might impact how plants interact with other things in their environment."



<h2 class="wp-block-heading" id="h-more-insect-damage-on-plants-with-glyphosate">More insect damage on plants with glyphosate</h2>



The researchers set up the study with 1,600 morning glory plants in <a href="https://umich.edu" target="_blank" rel="noreferrer noopener">U-M</a>'s Matthaei Botanical Gardens. They sprayed half of the plants with glyphosate and recorded the <a href="https://www.earth.com/news/tiny-leaf-eating-insects-have-a-huge-impact-on-forests/" target="_blank" rel="noreferrer noopener">plants</a>' growth traits.



Noteworthy findings from the study included the fact that plants treated with glyphosate incurred more damage from insects compared to the non-treated (control) plants. However, plants resistant to glyphosate had less insect damage.



While conventional ecological theory would suggest a tradeoff between these two traits, Zhang said the team "saw the opposite."



The researchers also analyzed the fitness of the <a href="https://www.earth.com/news/dna-technology-will-accelerate-the-pace-of-plant-species-discovery/" target="_blank" rel="noreferrer noopener">plants</a>, i.e., their likelihood of producing seeds. They discovered a positive selection acting on glyphosate resistance: the more resistant the plants are to glyphosate, the fitter they are and the more likely to produce seeds.



<h2 class="wp-block-heading" id="h-plant-genes-and-insect-defenses">Plant genes and insect defenses</h2>



But, why are plants that are resistant to glyphosate also resistant to insect damage?



While Zhang and Baucom are yet to confirm, they hint at the role of the shikimate pathway - a metabolic process that glyphosate attacks, impacting the plant's herbivory defenses.



In contrast, the plants resistant to glyphosate seem to have multiple genes working together. These form detoxification pathways that can wade off glyphosate, thereby maintaining their insect defenses.



<h2 class="wp-block-heading" id="h-implications-for-agricultural-practices">Implications for agricultural practices</h2>



This study has profound implications for current agricultural practices and the management of herbicide application. Understanding the dual resistance to both glyphosate and herbivory challenges the conventional approach to pest and weed management. 



For farmers, this could mean re-evaluating the use of herbicides like glyphosate to mitigate potential unintended ecological repercussions. 



The development of crops that can naturally resist both herbicides and <a href="https://www.earth.com/news/how-does-the-milkweed-beetle-safely-feed-on-a-toxic-plant/" target="_blank" rel="noreferrer noopener">insect</a> predation could lead to more sustainable agricultural strategies, reducing the need for chemical inputs while preserving biodiversity in farmlands.



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



The findings open the door to further exploration into the genetic underpinnings of plant resistance. Future research could investigate the exact genetic pathways involved in this dual resistance, potentially leading to breakthroughs in genetic engineering for crop improvement.



Another avenue of research could focus on the long-term evolutionary consequences of glyphosate use on plant-insect interactions. 



Scientists could harness these insights for developing crops that are better suited to withstand both chemical and biological stressors, ensuring food security in an ever-changing environment.



<h2 class="wp-block-heading" id="h-human-made-impacts-on-nature">Human-made impacts on nature</h2>



"Studies in the past usually look at the evolution of herbicide resistance in these plants or they'll look at how applying the herbicide directly to specific insects will affect them," Zhang said. 



"But they haven't really looked at this question from more of a community level: How does herbicide act as a disruptor on this community level?" 



"So that's what we really wanted to focus on: how does this new disruptive agent that is human-made impact a very natural, long standing relationship between plants and their insects?"



The study is published in the journal <a href="https://nph.onlinelibrary.wiley.com/doi/10.1111/nph.20238" target="_blank" rel="noreferrer noopener">New Phytologist</a>.



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Herbicides disrupt the co-evolution of plants and insects

Have you ever paused to admire a morning glory? Just...

Phosphorus, a crucial nutrient for soil fertility and life sustainability, is increasingly vanishing from U.S. farmland, washing into rivers and streams at alarming rates.&nbsp;



A new study led by researchers at the <a href="https://www.psu.edu/" target="_blank" rel="noreferrer noopener">Pennsylvania State University</a> reveals that despite efforts to curb phosphorus loss, agricultural runoff has continued to rise over the past four decades, posing significant threats to <a href="https://www.earth.com/news/vaccinating-plants-could-boost-global-food-security/" target="_blank" rel="noreferrer noopener">food security</a> and water quality.



<h2 class="wp-block-heading" id="h-soil-nutrient-and-phosphorus-loss">Soil nutrient and phosphorus loss</h2>



Phosphorus is indispensable for life, playing a key role in DNA formation and cellular energy transfer.&nbsp;



However, unlike nitrogen, it is a non-renewable resource with limited geological reserves. Once it is lost from soil and enters <a href="https://www.earth.com/news/humans-impacts-on-waterways-contribute-to-the-climate-crisis/" target="_blank" rel="noreferrer noopener">waterways</a>, it cannot naturally replenish in agricultural lands.



“This is a problem for many reasons,” said Li Li, professor of civil and environmental engineering at Penn State and corresponding author of the study.&nbsp;



“When it’s lost from farmland, it can reduce crop yields, potentially leading to higher food prices. Then, when phosphorus enters our waterways, it can cause harmful algal blooms that can make water unsafe for swimming and fishing - and can even reduce oxygen levels in water and kill fish and other aquatic life.”



Li also highlighted the economic impact of phosphorus depletion: “It makes it more expensive to treat drinking water, which means higher water bills for all of us.”



<h2 class="wp-block-heading" id="h-rising-phosphorus-levels-in-rivers">Rising phosphorus levels in rivers</h2>



Analyzing data from 430 U.S. <a href="https://www.earth.com/news/global-warming-is-disrupting-the-seasonal-flow-of-rivers/" target="_blank" rel="noreferrer noopener">rivers</a> spanning 1980 to 2019, the research team used a deep learning model to uncover troubling trends. 



While phosphorus levels have declined in 60% of the studied rivers, overall phosphorus flowing into waterways has increased.



“Agricultural areas are the biggest contributors to the problem, with phosphorus levels increasing in most rivers near agricultural areas, even as they decline in rivers near urban areas,” Li explained.&nbsp;



“This suggests that efforts to control phosphorus pollution from sources like agricultural runoff are not as effective as we thought.”



By contrast, targeted efforts to reduce phosphorus pollution from urban wastewater treatment plants appear to be succeeding.&nbsp;



<h2 class="wp-block-heading" id="h-soil-nutrient-loss-is-beyond-local-control">Soil nutrient loss is beyond local control </h2>



However, the researchers warn that the broader problem is worsening due to factors beyond local control, particularly the increased frequency of extreme weather events linked to climate change.



“This means that even though we’re doing a better job at limiting phosphorus pollution from urban areas, the problem is getting worse overall, due to factors largely beyond the control of just one region,” Li said.



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



<a href="https://www.earth.com/news/droughts-and-extreme-weather-events-are-escalating/" target="_blank" rel="noreferrer noopener">Extreme weather events</a>, such as heavier rainfall and flooding, have amplified phosphorus runoff into waterways. As storms grow wetter and more frequent due to climate change, the volume of water flowing through rivers increases, pulling more phosphorus from the soil.



“We’ve seen from recent weather events that water quantity, the amount of water that storms and waterways carry, can lead to dangerous flooding and mudslides,” Li said.&nbsp;



“What we wanted to understand is what happens to the land when these storms pull the subsurface of the soil into rivers and streams. What we found is an alarming loss of this finite element that lets soil sustain life.”



<h2 class="wp-block-heading" id="h-innovative-solutions-are-needed">Innovative solutions are needed</h2>



To combat this escalating issue, the researchers emphasize the need for innovation and changes in agricultural practices. One promising development is a technology invented at Penn State by alumnus Hunter Swisher.



Swisher, founder and CEO of <a href="https://www.phospholutions.com/" target="_blank" rel="noreferrer noopener">Phospholutions</a>, has developed a fertilizer designed to improve phosphorus efficiency in soil. “We are advocating for more innovation, more creativity and more urgency,” Li said.



The company’s product has shown remarkable results, reducing phosphorus runoff potential by 78% compared to conventional fertilizers.&nbsp;



Phospholutions is now expanding its technology across the Americas, Europe, and India, aiming to address phosphorus pollution on a global scale.



<h2 class="wp-block-heading" id="h-a-ddressing-soil-nutrient-loss">Addressing soil nutrient loss</h2>



The study highlights the urgent need for comprehensive strategies to address phosphorus loss.&nbsp;



With climate change exacerbating the problem, researchers call for a combination of advanced technologies and sustainable farming practices to mitigate the impacts on both <a href="https://www.earth.com/news/climate-and-agriculture-are-locked-in-a-destructive-feedback-loop/" target="_blank" rel="noreferrer noopener">agriculture</a> and aquatic ecosystems.



“The connection between water and land is essential, and that balance is growing increasingly fragile,” Li concluded.



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Soil nutrient loss due to heavy rainfall threatens agriculture 

Phosphorus, a crucial nutrient for soil fertility and life sustainability,...

Our vast forests, those endless expanses of green mesmerizing beauty, showcase the incredible diversity of Mother Nature. However, rising forest damage threatens their role in maintaining ecosystem balance and supporting stable economies.



In a surprising turn of events, a recent study shows that forests seem to be facing an unwelcoming reality - increased vulnerability. And the culprit? Lack of diversity in tree species.



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



Life as we know it thrives on the principle of diversity. The more diverse an ecosystem, the more resilient it turns out to be. But what happens when this diversity dwindles?



When you explore the heart of the forest, areas dominated by a single species, such as the lodgepole pine, may reveal a striking vulnerability. Experts have identified significant risks associated with <a href="https://www.earth.com/news/more-than-one-third-of-the-worlds-trees-face-extinction/" target="_blank" rel="noreferrer noopener">forests</a> lacking species diversity.



The research on forest damage was led by researchers at Umeå University and the <a href="https://www.slu.se/en/" target="_blank" rel="noreferrer noopener">Swedish University of Agricultural Science</a> in Uppsala.



<h2 class="wp-block-heading" id="h-factors-that-threaten-forest-health">Factors that threaten forest health</h2>



Swedish forests have their fair share of visitors, but not all of them are welcome. 



Fires, insects, cervids like moose, and fungi, are among the uninvited guests. These factors chip away at the health of the forest, sometimes to such an extent that they disrupt the ecosystem's functionality.



This impact is not just an environmental concern. It has significant implications on the forest industry, which relies on the forest's ability to provide wood and other <a href="https://www.earth.com/news/resilient-trees-can-help-safeguard-cities-from-climate-change/" target="_blank" rel="noreferrer noopener">tree</a> products.



<h2 class="wp-block-heading" id="h-climate-change-and-forest-damage">Climate change and forest damage</h2>



Our forests are up against another formidable foe - climate change. As the temperatures increase and weather patterns become more unpredictable, the forests face a heightened risk of damages.



“In a warmer climate with more extreme weather and new pest organisms, and with a more intense forestry, forest damages are expected to become more common and more severe," said Micael Jonsson of <a href="https://www.umu.se/en/" target="_blank" rel="noreferrer noopener">Umeå University</a>, who led the study. 



"It is therefore important to understand causes of forest damages and whether it can be prevented." 



<h2 class="wp-block-heading" id="h-findings-on-forest-diversity">Findings on forest diversity</h2>



The research team relied on vast data collected by the Swedish national forest inventory since 2003. They sought to identify the most prevalent types of tree damages and what escalates the risk of trees getting damaged.



Knocking down assumptions, wind and snow damage topped the list, followed by forestry-related destruction and damage caused by fungi. Sadly, 94 percent of all trees had suffered some level of damage.



<h2 class="wp-block-heading" id="h-vulnerability-to-forest-damage">Vulnerability to forest damage</h2>



The researchers observed that coniferous trees in younger stands, especially in warmer parts of Sweden, were at a higher risk for damages. And amongst all, the lodgepole pine, an introduced species, seemed to bear the brunt.



Jonsson and his team noted that introducing species like lodgepole pine may not be in the best interest of a profitable forestry in Sweden.



Not all news is bad news, though. The study reveals an encouraging finding: forests having a broader spectrum of <a href="https://www.earth.com/news/trees-are-relocating-in-a-race-against-global-warming/" target="_blank" rel="noreferrer noopener">tree species</a> displayed resilience against extensive damages, especially in warmer climates.



So, Mother Nature has given us a hint - diversification may be the key to healthier, more resilient forests in the face of climate change!



“We must adapt Swedish forests and forest management methods to a future warmer climate," said study co-author Jan Bengtsson at the Swedish University of Agricultural Science.



"Including more <a href="https://www.earth.com/news/the-worlds-largest-living-organism-consists-of-47000-trees/" target="_blank" rel="noreferrer noopener">tree</a> species in production forests seems to be an adaptation that could work!” 



<h2 class="wp-block-heading" id="h-room-for-improvement">Room for improvement</h2>



While the study brings forward several valuable insights, it also sheds light on the challenges encountered during research. 



“The national forest inventory collects important data for our understanding of the forest, but when it comes to the damage inventory, the data quality needs to improve to be fully usable in forestry practices,” said study co-author Jon Moen of Umeå University.



In conclusion, the study provides a compelling case for diversifying our forests and adapting our forestry practices. 



Can we thwart the looming risk of forest damages and create healthier, more thriving forests? Only time will tell, but for now, it's clear that we have some changes to make.



The study is published in the journal <a href="https://esajournals.onlinelibrary.wiley.com/doi/10.1002/ecs2.70071" target="_blank" rel="noreferrer noopener">Ecosphere</a>.



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Forests face rising damage risks as their diversity dwindles

Our vast forests, those endless expanses of green mesmerizing beauty,...

Climate change has emerged as a formidable challenge to plant life on Earth. Changes in the environment, which plants are unaccustomed to, disrupt their growth, posing grave risks. 



Increasingly, plant scientists strive to comprehend how these environmental changes will impact plant life and whether plants can acclimate to a new status quo.



<h2 class="wp-block-heading" id="h-adaptations-of-paper-birch-trees">Adaptations of paper birch trees</h2>



A team of researchers from the Walker lab at the <a href="https://msu.edu" target="_blank" rel="noreferrer noopener">Michigan State University</a>-U.S. Department of Energy Plant Research Laboratory, or PRL, has set their sights on how paper birch trees adapt to changing environments. They are keen on understanding the management of an important plant process known as photorespiration.



"If plant metabolism was a freeway system, photorespiration would be the second-highest trafficked road,” noted Berkley Walker, an associate professor in the Department of Plant Biology in the PRL.



The question is whether the roads of this crucial pathway can handle all this traffic under present and predicted <a href="https://www.earth.com/news/2024-shatters-heat-records-earths-hottest-year-is-here/" target="_blank" rel="noreferrer noopener">climate conditions</a>.



<h2 class="wp-block-heading" id="h-acclimation-in-humans-and-plants">Acclimation in humans and plants </h2>



Acclimation refers to the adjustment of living organisms to <a href="https://www.earth.com/news/cities-are-largely-unprepared-for-the-effects-of-climate-change/" target="_blank" rel="noreferrer noopener">altered conditions</a>. In humans, we acclimate when we adapt to the cold weather of winter or while getting accustomed to a new job.



However, plants must acclimate too, which is made complex by the fact that the increase in atmospheric carbon dioxide (CO2) and global warming have contrasting effects on photosynthesis and photorespiration.



As the temperature rises, so does photorespiration, but when CO2 levels rise, photorespiration decreases. This interplay may modify the efficiency of photorespiration.



<h2 class="wp-block-heading" id="h-paper-birch-response-to-climate">Paper birch response to climate</h2>



In a study published in the journal Scientific Reports, the research team examined whether paper birch trees adjusted the activity of photorespiratory enzymes under varying <a href="https://www.earth.com/news/earth-days-getting-longer-rotation-slows-climate-change/" target="_blank" rel="noreferrer noopener">environmental conditions</a>.



Paper birch trees were selected because they inhabit boreal forest biomes located in the northernmost parts of the planet, which are expected to be among the ecosystems hit hardest by climate change.



The experimental growth conditions mirrored current, moderate, and extreme climate change scenarios for these boreal forest regions, as outlined by the Intergovernmental Panel on Climate Change. 



In each scenario, researchers modified the CO2 concentration and increased air temperatures in various combinations.



“This study explored whether plants fine-tuned their enzyme capacity based on demand or whether they keep a buffer, so they have extra capacity in reserve to handle unpredictable changes,” said Luke Gregory, former graduate student in the Walker lab and first author on the study.&nbsp;



<h2 class="wp-block-heading" id="h-plant-growth-in-a-changing-climate">Plant growth in a changing climate </h2>



Trees for the study were grown from seeds at the <a href="https://www.uwo.ca/index.html" target="_blank" rel="noreferrer noopener">University of Western Ontario</a> by researchers in Professor Danielle Way’s lab. They used the university’s Biotron, a research facility capable of simulating almost any climate on Earth.



Surprisingly, the experts found that the trees did not increase their enzyme capacity depending on the climate they were grown in. Instead, they maintained similar capacities across all six future climate scenarios.



Remarkably, the measured enzyme capacities were more than adequate for the photorespiratory pathway, implying that the trees were poised to grow even under changing conditions.



<h2 class="wp-block-heading" id="h-plant-resilience-in-changing-climates">Plant resilience in changing climates</h2>



Gregory highlighted an intriguing find: the plants have a “safety factor” or buffer capacity that enables them to cope with different changes, whether under current, moderate, or extreme conditions.



This discovery offers a glimmer of hope that plants have a built-in mechanism which might help them survive the adverse effects of climate change, at least in terms of photorespiration.



That being said, this research is just one piece of the larger puzzle in comprehending how photorespiration is and will continue to be impacted by human-induced climate change.



<h2 class="wp-block-heading" id="h-plant-resilience-in-the-face-of-climate-change">Plant resilience in the face of climate change </h2>



“It’s important that we understand how plants are responding to current conditions and future conditions because we need them in our lives,” said Gregory. 



The question of whether plants can acclimate or adapt over generations to these <a href="https://www.earth.com/news/extreme-heat-of-2023-weakened-earths-carbon-storage-capacity/" target="_blank" rel="noreferrer noopener">altered environments</a> is pertinent as they provide us with oxygen, food, and energy.



This study opens a new window to appreciate and understand plant resilience in the face of the relentless challenges posed by climate change.



The study is published in the journal <a href="https://www.nature.com/articles/s41598-024-77049-7" target="_blank" rel="noreferrer noopener">Scientific Reports</a>.



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Plants defy climate change through acclimation

Climate change has emerged as a formidable challenge to plant...

Across the globe, approximately 8.7 million different plant species exist, with around a quarter of them dwelling in the ocean.



For centuries, our understanding of these species, particularly those on land, has been largely shaped by their physical characteristics. 



The process of identifying species based on their morphological characteristics was first established by 18th-century scientist Carl Linnaeus.



However, new findings suggest that this method may not be as comprehensive as we once thought. The research suggests that DNA holds the key to uncovering the identities of plants. 



<h2 class="wp-block-heading" id="h-using-dna-to-identify-plant-species">Using DNA to identify plant species</h2>



While Linnaeus's method has guided our identification of species for centuries, advancements in technology have ushered in a new era of species identification - through <a href="https://www.earth.com/news/largest-ever-ocean-dna-study-uncovers-mysteries-of-marine-life/" target="_blank" rel="noreferrer noopener">DNA sequencing</a>. 



Over the last decade, biologists have begun to depend heavily on DNA sequencing to distinguish between species more accurately. This approach typically involves analyzing a single, species-specific site in the DNA, but it's not foolproof.



"There are times when different plant species are difficult to characterize from a small DNA sequence. But now DNA sequencing has taken several steps forward and we have been able to identify completely new species by analyzing a larger part of the genome," explained Zaynab Shaik, author of a doctoral thesis at the <a href="https://www.gu.se/en" target="_blank" rel="noreferrer noopener">University of Gothenburg</a>.



<h2 class="wp-block-heading" id="h-the-case-of-the-cryptic-daisies">The case of the cryptic daisies</h2>



Shaik's research zeroes in on a group of daisies in the Cape Province of her native South Africa. This collection comprises 66 recognized species, and the first of these species was described in 1753.



Despite their prevalence and commonality, some daisies in the region have puzzled botanists. These "cryptic" plants appear identical in leaf and flower structure, growth habit, and distribution, yet they boast significant <a href="https://www.earth.com/news/just-a-few-genetic-differences-tailor-flowers-to-specific-pollinators/" target="_blank" rel="noreferrer noopener">genetic differences</a>.



"It is important that we have a better understanding of plant relationships and <a href="https://www.earth.com/news/animal-tracking-is-crucial-for-preserving-biodiversity/" target="_blank" rel="noreferrer noopener">biodiversity</a> on Earth. It is easy to imagine how wrong it could be if we discover that a plant is suitable for use as a base in a drug, and then we pick another, similar, species instead, which may not have the same properties at all," said Shaik.



<h2 class="wp-block-heading" id="h-dna-reveals-new-plant-species">DNA reveals new plant species </h2>



Shaik's DNA analyses of these cryptic daisies have led to the unmasking of four new species. She noted that these species aren't new creations hidden in unexplored terrains. 



"When I'm asked about this, there's a bit of an anti-climax when I explain that it's not that I've found a new daisy in a remote location that no one has seen before. But these have been admired for a long time, but they have been mistaken for another species."



Shaik's identification method, known as integrative taxonomy, merges traditional observational techniques with modern DNA sequencing. 



This combination enhances our knowledge of species boundaries and is expected to ramp up the rate of new species discovery.



<h2 class="wp-block-heading" id="h-many-more-discoveries-to-be-made">Many more discoveries to be made</h2>



Shaik hints at a possible underestimation of the biodiversity in the Cape region and, by extension, other parts of the world. 



"In the Cape, it has been thought that only 1 percent of biodiversity remains to be discovered. My results suggest that it could be much more than that. And the same should reasonably apply to other areas of the globe."



Thus, <a href="https://www.earth.com/news/saving-parrots-in-the-illegal-wildlife-trade-with-dna-technology/" target="_blank" rel="noreferrer noopener">DNA technology</a>, progressing hand in hand with traditional methods, is undeniably reshaping our understanding of Earth's biodiversity. 



As we continue to unravel more secrets within the realm of genetics, the question arises: how much more of nature's mysteries are waiting to be unveiled?



<h2 class="wp-block-heading" id="h-technology-and-plant-species-discovery">Technology and plant species discovery</h2>



The integration of DNA sequencing with traditional taxonomy, known as integrative taxonomy, is becoming the cornerstone of modern biodiversity studies. 



Unlike conventional methods that rely solely on observable physical traits, this approach combines morphological analysis with molecular data, offering a multi-dimensional view of species identification. 



This hybrid method addresses limitations found in singular approaches and helps clarify ambiguities, particularly in species with minimal visible differences.



Integrative taxonomy is not only accelerating the pace of <a href="https://www.earth.com/news/mushroom-magic-new-species-discovered-in-africa/" target="_blank" rel="noreferrer noopener">species discovery</a> but also refining conservation strategies.



By identifying genetic differences that aren't apparent through morphology alone, researchers can better understand which populations may be at risk and develop more effective protection measures. 



This evolving field highlights the importance of embracing modern technology alongside traditional scientific practices to enrich our understanding of life on Earth.



The study is published in the journal <a href="https://www.sciencedirect.com/science/article/abs/pii/S025462992400320X?via%3Dihub" target="_blank" rel="noreferrer noopener">South African Journal of Botany</a>.



Image Credit: Zaynab Shaik



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DNA technology will accelerate the pace of plant species discovery

Across the globe, approximately 8.7 million different plant species exist,...

Pando, an extraordinary organism residing in Utah, quietly stands out among the myriad of living beings that inhabit our planet, captivating scientists and nature enthusiasts alike. 



This remarkable colony of quaking aspen trees (Populus tremuloides) stretches across 106 acres, and is connected by an extensive underground root system that forms a single, unified organism rather than just a forest of unrelated individuals.



With its remarkable size and age, Pando dwarfs its fellow inhabitants, holding the potential to be not only the oldest living being but also the largest organism on Earth. It is a symbol of nature's resilience and complexity over millennia.



<h2 class="wp-block-heading" id="h-utah-s-pride-the-incredible-pando">Utah's pride: The incredible Pando</h2>



A group of American researchers has suggested that this 106-acre woodland in the heart of Utah could have originated from a single seedling, which sprouted 34,000 years ago, pre-dating the end of the <a href="https://www.earth.com/news/disastrous-climate-changes-of-the-last-ice-age-could-happen-again/" target="_blank" rel="noreferrer noopener">last ice age</a>.



Even bolder estimates propose that this clonal organism, which appears to consist of 47,000 separate trees, might have been present tens of thousands of years earlier.



<h2 class="wp-block-heading" id="h-the-astonishing-life-of-clonal-organisms">The astonishing life of clonal organisms</h2>



Pando (which means "I spread" in Latin) is intriguing because of its massive size, but it also boasts a unique genetic identity shared by all its individual parts that are linked together through one vast network of roots.



This form of asexual reproduction makes Pando a <a href="https://www.earth.com/news/listening-to-the-largest-and-oldest-tree-on-earth-what-does-it-have-to-say/" target="_blank" rel="noreferrer noopener">clonal organism</a>, with each 'tree' being a part of the whole, rooted and growing from the same entity. 



There are other life forms, including fungi and the bristlecone pines on the White Mountains in eastern California, that display similar capabilities. They survive through <a href="https://www.earth.com/news/scientists-have-had-a-breakthrough-in-cloning-coconut-trees/" target="_blank" rel="noreferrer noopener">cloning</a> methods for hundreds, or even thousands of years.



<h2 class="wp-block-heading" id="h-unlocking-pando-s-historical-tales">Unlocking Pando's historical tales</h2>



To discern Pando's true age more accurately, the research team meticulously collected around 500 samples, including root, leaf, and bark, from different parts of this giant organism.



They also obtained specimens from other, unrelated aspens and embarked on a journey to sequence their DNA.



The scientists identified 4,000 genetic variations within these samples, and the mutation patterns narrated a captivating story that dates back potentially between 16,000 and 80,000 years.



<h2 class="wp-block-heading" id="h-unraveling-the-genetic-enigma">Unraveling the genetic enigma</h2>



The researchers, led by Rozenn Pineau of the <a href="https://www.uchicago.edu/en" target="_blank" rel="noreferrer noopener">University of Chicago</a>, noted that they had initially expected a close genetic correlation between trees that are physically near each other.



"You would expect that the trees that are spatially close are also closer genetically," Pineau told Helena Kudiabor at Nature. "But this is not exactly what we find. We found a spatial signal, but that is much weaker than what we expected."



Those trees that were in close proximity did share more similar mutations than those that were far apart - but only slightly more.



This discovery adds a new layer of complexity to understanding Pando's genetic structure and resilience.



Additional research focusing on Pando's mutation history and its genomic protection methods could provide insights into how this plant (and other similar organisms) has managed to survive for millennia.



<h2 class="wp-block-heading" id="h-ensuring-pando-s-enduring-legacy">Ensuring Pando's enduring legacy</h2>



Concerns are mounting over the longevity of Pando. Ensuring its survival will require a deep understanding of this ancient <a href="https://www.earth.com/news/plants-use-dna-duplication-to-increase-their-resilience/" target="_blank" rel="noreferrer noopener">plant's resilience</a> against the assaults of man and nature.



Moreover, similar investigations into other clonal organisms elsewhere may offer Pando competition for its venerable title. 



One competitor lies in a patch of Posidonia oceanica seagrass off the Spanish island of Formentera, which some believe to be more than 200,000 years old.



<h2 class="wp-block-heading" id="h-the-ecological-significance-of-pando">The ecological significance of Pando</h2>



Pando is more than just a marvel of age and size; it plays a crucial role in the local ecosystem. 



This vast network of quaking <a href="https://www.earth.com/news/aspen-forests-could-reverse-biodiversity-loss-in-europe/" target="_blank" rel="noreferrer noopener">aspens</a> supports a diversity of wildlife by providing habitat and food for numerous species, from insects and birds to larger mammals such as deer and elk.



The interconnected root system of Pando also aids in soil stabilization, which prevents erosion and supports the health of the surrounding environment.



However, understanding Pando's ecological contributions has become more urgent than ever, as climate change and human activities threaten its survival. 



Efforts to study and preserve this unique organism are now critical, not only to protect its ancient legacy but also to help maintain the delicate balance of the ecosystem it anchors.



<h2 class="wp-block-heading" id="h-the-enduring-hymns-of-pando">The enduring hymns of Pando</h2>



Pando's survival through the ages is a tribute to time itself. It stands as a constant reminder of the ancient world, sharing with us stories of an era long gone. 



As we continue to unravel the mysteries of Pando, we can only hope that this ancient marvel stands tall and flourishes in the years to come.



The research is published in <a href="https://www.biorxiv.org/content/10.1101/2024.10.19.619233v2">BioRxiv</a>.



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The world's largest living organism consists of 47,000 trees

Pando, an extraordinary organism residing in Utah, quietly stands out...

Every living organism relies on a genetic blueprint encoded in its DNA, yet the amount of DNA - or genome size - varies dramatically across the tree of life.&nbsp;



In animals alone, genome sizes range from the minuscule genome of Intoshia variabili, a marine parasite - which is about 200 times smaller than the human genome - to the massive genome of the marbled lungfish (Protopterus aethiopicus) - which is over 40 times larger than ours.&nbsp;



Plants exhibit a similar range, with the fork fern (Tmesipteris oblanceolata) setting the record with a genome size over 50 times larger than that of humans.



This diversity in <a href="https://www.earth.com/news/genome-mapping-completed-for-dozens-of-common-animals/" target="_blank" rel="noreferrer noopener">genome</a> size reveals the vast variety of life forms on Earth, but it also raises a fascinating question: If smaller genomes lead to faster, more efficient growth, why do some species have larger genomes?



<h2 class="wp-block-heading" id="h-advantages-of-smaller-genome-sizes">Advantages of smaller genome sizes</h2>



The replication of DNA is essential for cell production and growth, making smaller genomes more efficient as they require fewer resources and time to replicate.&nbsp;



Smaller genomes demand fewer <a href="https://www.earth.com/news/excess-nutrients-are-creating-ocean-dead-zones/" target="_blank" rel="noreferrer noopener">nutrients</a>, especially the DNA-building elements nitrogen and phosphorus, making them ideal for rapid growth and reproduction.



Because of these advantages, it’s not surprising that most species have evolved with relatively small genomes.&nbsp;



However, large genomes persist in some organisms, suggesting that these genomes may confer certain benefits in specific environments, where the costs of carrying extra DNA are outweighed by unique growth advantages.



<h2 class="wp-block-heading" id="h-exploring-large-genome-benefits-in-grasses">Exploring large genome benefits in grasses</h2>



A research team led by the <a href="https://www.sheffield.ac.uk/" target="_blank" rel="noreferrer noopener">University of Sheffield</a> has recently studied the potential benefits of large genomes in grass species. 



<a href="https://www.earth.com/news/fairy-circles-kill-all-newly-planted-grasses-deepening-their-mystery/">Grasses</a>, a vast plant family found worldwide from arctic tundras to tropical savannas, vary in genome size, making them an ideal group to examine how genome size affects growth in different conditions.



The study, published in the journal <a href="https://doi.org/10.1111/nph.20150" target="_blank" rel="noreferrer noopener">New Phytologist</a>, examined the growth of various grass species under conditions mimicking their natural environments - high temperatures, low nutrients, and drought. 



The scientists compared growth rates to each species’ genome size and observed that while grasses with smaller genomes generally grew better across most conditions, larger genomes provided advantages in two specific scenarios.



<h2 class="wp-block-heading" id="h-large-genomes-thrive-in-nutrient-rich-environments">Large genomes thrive in nutrient-rich environments</h2>



The first scenario where larger genomes proved beneficial was in nutrient-rich soils. While low nutrient levels slowed down large-genome grasses, those with large genomes thrived in high-nutrient environments.&nbsp;



Here, the extra DNA content meant larger cells that produced more biomass, such as leaves, which allowed these plants to outgrow and overshadow neighbors with smaller genomes.&nbsp;



In nutrient-poor areas, however, the demands of replicating additional DNA outweighed these benefits, making smaller genomes more favorable.



<h2 class="wp-block-heading" id="h-growing-seasons-and-genome-sizes">Growing seasons and genome sizes</h2>



The second advantage for large-genome grasses occurred in cooler environments, such as temperate regions with lower growing season temperatures.&nbsp;



<a href="https://www.earth.com/news/how-do-plants-grow-more-branches-and-become-bushy/" target="_blank" rel="noreferrer noopener">Plant growth</a> typically has two stages: cell division, where new cells are generated, and cell expansion, where cells swell with water to help the plant grow taller or spread. 



Cool temperatures significantly slow down cell division, but they have less impact on cell expansion.&nbsp;



Consequently, grasses with larger cells, which accompany large genomes, can expand more rapidly by cell enlargement even in cooler weather, outpacing smaller-genome plants that rely on faster cell division in warmer temperatures.



This cell expansion process explains the early spring growth of plants like daffodils and bluebells, which also have large genomes.&nbsp;



These plants perform much of their cell division in warmer months, allowing them to use cell expansion to grow quickly in early spring, well before smaller-genome plants begin to compete for light and nutrients.



<h2 class="wp-block-heading" id="h-genome-size-diversity">Genome size diversity</h2>



The diversity in genome sizes among grasses may be one reason for their global success, as it allows them to adapt to a wide range of environmental conditions.&nbsp;



While smaller genomes typically support efficient growth, larger genomes offer unique advantages in specific environments, enabling certain species to thrive where others cannot.&nbsp;



This genetic diversity in grasses underscores the importance of variation in supporting species’ survival and adaptability across ecosystems.



<h2 class="wp-block-heading" id="h-genome-size-and-evolutionary-success">Genome size and evolutionary success</h2>



The relationship between genome size and survival is not limited to plants. Our own medium-sized genome has supported humanity’s adaptability, though we don’t face the same nutrient limitations as stationary plants.&nbsp;



Unlike grasses, humans can move to seek out food and resources, which may allow us to bear the metabolic costs associated with our DNA without significant limitation.&nbsp;



This mobility highlights how different species leverage their genetic make-up in conjunction with unique behaviors and environmental interactions to thrive across diverse habitats.



In summary, the role of genome size in evolutionary success is nuanced and complex.&nbsp;



From the efficient replication of small genomes to the adaptability enabled by larger ones, genome size continues to shape the ecological <a href="https://www.earth.com/news/asian-forests-proving-resilient-both-climate-change-human-actions/" target="_blank" rel="noreferrer noopener">resilience</a> and global distribution of life on Earth.



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How does genome size impact evolutionary success?

Every living organism relies on a genetic blueprint encoded in...

Rainforests are not just a symbol of natural beauty; they are a crucial component of our planet’s ecosystem. Yet, climate change poses an imminent threat to these vital habitats and beyond.



Up to two-thirds of the world’s temperate rainforests could fall victim to climate change by the year 2100 according to a new study by researchers at the <a href="https://www.leeds.ac.uk/" target="_blank" rel="noreferrer noopener">University of Leeds</a>.



<h2 class="wp-block-heading" id="h-global-assessment-of-temperate-rainforests">Global assessment of temperate rainforests</h2>



The study is one of its kind - the first-ever global assessment of the impact of <a href="https://www.earth.com/news/temperate-rainforests-can-help-fight-climate-change/" target="_blank" rel="noreferrer noopener">climate change</a> on temperate rainforests.



"Temperate rainforests are rare ecosystems found only in wet and cool regions, making them vulnerable to a warming climate. They are important to conserve because they host unique species and can store high amounts of carbon," noted the study authors. 



With the help of comprehensive maps detailing tree cover, forest conditions, and climate data, the researchers were able to evaluate how human activity and climate change have collectively impacted the world's temperate rainforests and how they might continue to do so.



Although covering less than one percent of the Earth's land surface, temperate rainforests have a significant role to play. The forests are located in many countries such as Canada, the United States, Chile, Japan, Australia, New Zealand, and the UK.



They are globally acknowledged for their ecological importance. Their high <a href="https://www.earth.com/news/tropical-forests-are-losing-their-carbon-storage-capacity/" target="_blank" rel="noreferrer noopener">carbon storage capacity</a> exceeds that of forests in other latitudes.



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



The researchers predict that in the most pessimistic scenario, we stand to lose up to 68 percent of our planet's temperate rainforests in the coming decades. In certain regions, this loss might reach a staggering 90 percent.



However, there's a silver lining: our actions can change the trajectory. If we take robust measures against <a href="https://search.app?link=https%3A%2F%2Fwww.earth.com%2Fnews%2Ffossil-carbon-emissions-hit-a-record-high-in-2023%2F&amp;utm_campaign=aga&amp;utm_source=agsadl2%2Csh%2Fx%2Fgs%2Fm2%2F4" target="_blank" rel="noreferrer noopener">fossil fuel</a> emissions, the projected loss would be only about 23 percent.



Rapid and decisive actions could further curtail this loss to a mere nine percent. This, once again, emphasizes the dire need for urgent, effective steps to counter climate change.



<h2 class="wp-block-heading" id="h-identifying-the-most-vulnerable-forests">Identifying the most vulnerable forests</h2>



The research was led by Ben Silver, a research fellow at Leeds' School of Earth and Environment.



"Unmitigated climate change is a disaster for temperate rainforest in the UK and globally, as they cannot survive the kinds of <a href="https://www.earth.com/news/scorching-summer-of-2024-could-make-it-the-hottest-year-on-record/" target="_blank" rel="noreferrer noopener">high summer temperatures</a> which we are starting to observe more regularly and are only predicted to worsen in future climate change simulations," said Silver. 



"Our study also shows that if we work hard to slow climate change it is not too late to save the world’s temperate rainforests." 



"We hope our study will support the conservation of temperate rainforests by identifying those areas that are the least or the most vulnerable to climate change, and where there is potential to restore forest."



<h2 class="wp-block-heading" id="h-british-rainforests-a-case-study">British rainforests: A case study</h2>



Temperate rainforests dot the UK's western seaboard, forming one of the most <a href="https://www.earth.com/news/landscapes-with-a-mix-of-habitats-are-biodiversity-hotspots/" target="_blank" rel="noreferrer noopener">biodiverse habitats</a>.



It's here that the high humidity and low temperature range create the perfect conditions for moisture-loving lichens and bryophytes.



Britain's temperate rainforests cover less than one percent of the land. Yet, the UK stands with more potential for restoration than any other place globally, hosting a quarter of the world's unforested temperate rainforest climate zone.



The researchers found that temperate rainforests in the UK are resilient to low and medium amounts of future warming.



Professor Dominick Spracklen, co-author of the study, emphasized the need for the UK to lead the world in temperate rainforest restoration.



"The UK could and should be a global leader in restoration of temperate rainforests. New funding and bold action by large landowners are urgently needed to help deliver government targets for temperate rainforest restoration," said Spracklen.



Dr. Dominick A. DellaSala, Chief Scientist of the U.S group Wild Heritage, reiterated the importance of the world’s rainforests as the "lungs of the planet."



"All the world’s rainforests are the ‘lungs of the planet’ that must be protected and restored as natural climate solutions to avoid the worst of global overheating," said Dr. DellaSalla.



"Temperate rainforests need to take their place alongside tropical rainforests and the boreal forests of the north as strategically vital to a safe climate."



The study is published in the journal <a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024EF004812" target="_blank" rel="noreferrer noopener">Earth's Future</a>.



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Two-thirds of temperate rainforests could be lost this century

Rainforests are not just a symbol of natural beauty; they...

We often hear about the insidious creep of climate change and the warming that's altering landscapes around the world. Well, the Arctic and its plants aren't immune to this silent invasion.



New evidence suggests that it's not just the temperature change we should be monitoring, but also our hoofed friends out on the tundra. Arctic greening, as it is often called, might be more about caribou and muskoxen than we ever realized.



<h2 class="wp-block-heading" id="h-greening-of-the-arctic-landscape">Greening of the Arctic landscape </h2>



Research released from the University of California, Davis (<a href="https://www.ucdavis.edu/academics/graduate" target="_blank" rel="noreferrer noopener">UC Davis</a>) indicates that the large grazers of the Arctic landscape - the caribou and muskoxen - have a direct effect on the timing and abundance of Arctic plants.



This correlation reveals significant implications for the <a href="https://www.earth.com/news/why-planting-trees-in-the-arctic-is-not-a-good-climate-solution/" target="_blank" rel="noreferrer noopener">overall Arctic ecosystem</a>. 



The findings were recently detailed in a study published in the journal PNAS Nexus and illuminate the vital role that these large herbivores play in our understanding of the Arctic ecosystem.



The focus of the narrative so far has been climate change and the increasing temperatures, but there seems to be more to it than that.



<h2 class="wp-block-heading" id="h-plants-emerging-in-the-arctic">Plants emerging in the Arctic</h2>



To fully appreciate the impact of this discovery, it's essential that we first understand phenology- the study of timing and patterns in nature.



It's what alerts us when birds are migrating, or when a plant first bursts to life or bursts into bloom. Within the context of a rapidly warming <a href="https://www.earth.com/news/how-melting-arctic-sea-ice-could-disrupt-earths-climate/" target="_blank" rel="noreferrer noopener">Arctic</a>, understanding these patterns becomes critical.



“Caribou and muskoxen play a key role in how soon plants emerge and this translates to how abundant they become,” said lead author Eric Post, a professor and arctic ecologist in the UC Davis Department of Wildlife, Fish and Conservation Biology. 



“This is an important, and overlooked, factor we need to consider as we seek to more fully understand climate change impacts on tundra vegetation in the Arctic.”



<h2 class="wp-block-heading" id="h-herbivores-and-plant-growth">Herbivores and plant growth </h2>



The research that led to these insights was conducted over a period of 22 years near Kangerlussuaq, Greenland. Here, Post and his team designed an exclusion experiment to understand the effect of herbivores on the timing of plant growth and abundance.



The researchers compared the timing of spring green-up of nine plant species with and without the grazing animals, from 2009 to 2017.



The overall conclusion was that plants where caribou or muskoxen were present underwent earlier green-up and enjoyed greater abundance later into the growing season.



However, not all plants responded equally to the grazing. While about two-thirds of plants greened up earlier, and three-quarters thrived more effectively later in the season with grazing animals present, some species such as dwarf birch and harebell emerged later when grazers were present.



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



While it's still unclear why Arctic plants respond this way to the presence of grazers, what is clear is that there is a connection.



“We’re used to thinking of the timing of plant availability as impacting the productivity of grazing animals, but not the reverse,” Post said. “The absence or presence of herbivores can also impact the timing of plant growth and their productivity.”



This understanding becomes increasingly important in light of the <a href="https://www.earth.com/news/arctic-ocean-warming-four-times-faster-than-global-average/" target="_blank" rel="noreferrer noopener">current decline</a> of many caribou populations in the Arctic. According to the IUCN Red List, migratory tundra caribou are now considered vulnerable, having lost more than half of their total abundance since the 1990s.



<h2 class="wp-block-heading" id="h-planting-trees-in-the-arctic">Planting trees in the Arctic</h2>



In a related study, Post suggested that supporting sustainable populations of herbivores in the Arctic could be a more effective nature-based solution to climate change in the region than planting trees there. The findings of the PNAS Nexus study lend credence to this suggestion.



We now have a better understanding of the crucial role our hoofed friends play in the Arctic ecosystem, but it is clear that more research is needed.



The challenge is enormous, yet with every bit of new knowledge, we get one step closer to a comprehensive understanding of the <a href="https://www.earth.com/news/air-pollution-alters-the-atmosphere-in-the-remote-arctic/" target="_blank" rel="noreferrer noopener">Arctic ecosystem</a> and how we can best protect it against the backdrop of climate change.



The study is published in the journal <a href="https://dx.doi.org/10.1093/PNASNEXUS-2024-00279RR" target="_blank" rel="noreferrer noopener">PNAS Nexus</a>.



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Arctic grazers secretly shape plant growth and survival

We often hear about the insidious creep of climate change...

Psilocybin, a compound at the forefront of psychedelic research, has sparked new hope in the perennial quest for an effective cure for psychiatric ailments, particularly anorexia nervosa. 



A clinical trial conducted by researchers at the University of California, San Diego (UCSD) highlights how this compound could potentially revolutionize treatment methods and result in improved clinical outcomes.



<h2 class="wp-block-heading" id="h-psilocybin-s-effect-on-anorexia-patients">Psilocybin’s effect on anorexia patients</h2>



<a href="https://www.earth.com/news/mental-disorders-can-be-contagious-among-teens/" target="_blank" rel="noreferrer noopener">Anorexia nervosa</a> is a psychiatric disorder that has resisted conventional treatments and currently has no effective medications approved by the US Food and Drug Administration. It is also the psychiatric illness that holds the record for having the highest mortality rate.



The <a href="https://ucsd.edu/" target="_blank" rel="noreferrer noopener">UCSD</a> research explores the effect of psilocybin treatment on this condition and provides a first-hand account of its consequences.



“Our findings suggest that psilocybin may be helpful in supporting meaningful psychological change in a subset of people with anorexia nervosa," explained Dr. Stephanie Knatz Peck, lead author of the study.



"What's particularly interesting is that 60% of participants reported a reduction in the importance of physical appearance, while 70% noted quality-of-life improvements and shifts in personal identity."



<h2 class="wp-block-heading" id="h-psilocybin-treatment-outcomes">Psilocybin treatment outcomes </h2>



The clinical trial revealed some fascinating outcomes. An overwhelming 90% of participants described their psilocybin session as one of the top five most meaningful experiences of their lives.



Additionally, 40% of the subjects showed clinically significant reductions in eating disorder psychopathology.



However, despite these positive results, the study notes that improvements in psychological outlook did not necessarily translate to weight restoration. 



Furthermore, psilocybin treatment appeared to work very effectively for some individuals while others showed minimal improvements. 



These discrepancies highlight the need for further research, particularly into how genetic variations in serotonin receptors might influence treatment outcomes.



<h2 class="wp-block-heading" id="h-transformative-experience-for-some-patients">Transformative experience for some patients </h2>



The impact of this treatment transcends the scientific data and filters into the personal lives of the subjects. 



As one participant shared: “You are able to act in a way that maybe had felt unachievable before, if you set the right intention.”



Another participant echoed similar sentiments, stating: “Things might not look that different from the outside, but they feel completely different from the inside.”



<h2 class="wp-block-heading" id="h-further-research-is-needed">Further research is needed</h2>



The study employed a single 25mg dose of psilocybin alongside specialized <a href="https://www.earth.com/news/overweight-depression/" target="_blank" rel="noreferrer noopener">psychological</a> support before, during, and after administration. 



Despite showcasing potential, the results also highlight the intricacy of treating anorexia nervosa and suggest a synergistic approach might be the most effective.



Dr. Walter H. Kaye, the study's senior author and UCSD Eating Disorders Treatment Center director, maintains that while the findings are promising, they need to be backed by larger, well-controlled studies. 



This includes the use of <a href="https://www.earth.com/news/brain-imaging-method-will-unravel-mysteries-of-neural-processes/" target="_blank" rel="noreferrer noopener">brain imaging</a> and genetic analysis to ascertain who might benefit most from this innovative treatment approach.



<h2 class="wp-block-heading" id="h-personalized-medicine-for-eating-disorders">Personalized medicine for eating disorders </h2>



The fascinating findings of the clinical trial initiated new trajectories for personalized medicine for eating disorders. 



However, it also sparked a flurry of questions around optimizing therapeutic protocols for this vulnerable demographic. 



Surely, it's a profound addition to the current discourse around non-traditional treatment methods.



<h2 class="wp-block-heading" id="h-challenges-of-psilocybin-therapy">Challenges of psilocybin therapy</h2>



The promise of psilocybin as a treatment for anorexia nervosa comes with its share of challenges. One major concern is ensuring that the therapy takes place in a safe, supportive environment. 



Psychedelic experiences can be intense and unpredictable, making it crucial to have professional guidance in place to support patients before, during, and after treatment.



This guidance helps maximize the benefits while minimizing any potential risks or adverse reactions.



There are also questions about how psilocybin therapy could fit into existing treatment plans. Researchers are looking at how it might complement traditional methods like <a href="https://www.earth.com/search-results/?search=cognitive-behavioral%20therapy&amp;start=0" target="_blank" rel="noreferrer noopener">cognitive-behavioral therapy</a> to boost long-term recovery. 



As more studies are conducted, it will be vital to address these challenges and questions. Only then can psilocybin potentially become a reliable, safe, and effective treatment option for those battling the complexities of anorexia nervosa.



The journey forward is one of thorough research, careful observation, and continued exploration to bring the best possible outcome to patients who need it most.



The study is published in the journal <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC10427429/" target="_blank" rel="noreferrer noopener">Nature Medicine</a>.



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Psilocybin shows promise for treating anorexia

Psilocybin, a compound at the forefront of psychedelic research, has...

Endangered animals