Acaena exigua 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.<a href="https://www.earth.com/news/ocean-surface-slicks-create-superhighway-for-fish/"> Fish</a> and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video. Acaena exigua is an extinct species of flowering plant in the rose family known by the common name liliwai. It was endemic to Hawaii, where it was known from Kauaʻi and west Maui. It had not been seen or collected since 1957 and was feared extinct until 1997, when one plant was discovered in a remote montane bog on <a href="https://www.bing.com/search?q=maui&amp;cvid=11f593b142284a109c4b71b63cd85874&amp;FORM=ANAB01&amp;PC=HCTS">Maui</a>. The plant died in 2000, and the species is now considered extinct.Acaena exigua A. Gray var. subtusstrigulosa Bitter: Classification. Click on a scientific name below to expand it in the PLANTS Classification Report. Rank Scientific Name and Common Name; Kingdom: Plantae – Plants Subkingdom: Tracheobionta

Acaena exigua

Acaena exigua NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation...

Alopecurus aequalis var. sonomensis 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.Alopecurus aequalis is a common species of <a title="Poaceae" href="https://en.wikipedia.org/wiki/Poaceae">grass</a> known as shortawn foxtail or orange foxtail.It is native to much of the temperate Northern Hemisphere from Eurasia to North America, where it can be found in many types of habitat. Alopecurus aequalis var. sonomensis. Sonoma shortawn foxtail. Legal Status. Threatened and Endangered Information: This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a completed plant list of that location.

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.earth.com/earthpedia-articles/perennial-vegetables-to-grow-in-north-america/">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.

Alopecurus aequalis var. sonomensis

Alopecurus aequalis var. sonomensis NatureServe Explorer Species Reports -- NatureServe...

Amaranthus brownii 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 <a href="https://www.earth.com/earthpedia-articles/what-is-the-african-penguin-why-is-it-endangered/">endangered species,</a> 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=43301dd515c748d8ad14055801b02e2c&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.Amaranthus brownii was an annual herb in the family Amaranthaceae. The plant was found only on the small island of Nihoa in the Northwestern Hawaiian Islands, growing on rocky outcrops at altitudes of 120–215 m. It was one of nine species of Amaranthus in the Hawaiian Islands, as well as the only endemic Hawaiian species of the genus. It is now considered extinct.Brown's amaranth Subordinate Taxa. This plant has no children Legal Status. Threatened and Endangered Information: This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists.

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.

Amaranthus brownii

Amaranthus brownii NatureServe Explorer Species Reports -- NatureServe Explorer is...

Amaranthus pumilus 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.

The seaside amaranth once ranged widely from South Carolina to Massachusetts. It was first identified in New Jersey, but disappeared in that state by 1913. It is now gone from two thirds of its original range.This plant has reappeared on some areas where it was formerly <a title="Local extinction" href="https://en.wikipedia.org/wiki/Local_extinction">extirpated</a> by habitat loss and recreational activities.Amaranthus pumilus, the seaside amaranth or seabeach amaranth, is a <a title="Species" href="https://en.wikipedia.org/wiki/Species">species</a> of <a title="Amaranth" href="https://en.wikipedia.org/wiki/Amaranth">amaranth</a>. This annual plant is now a threatened species, although it was formerly scattered along the eastern coast of the United States, its native range.

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.

Amaranthus pumilus

Amaranthus pumilus NatureServe Explorer Species Reports -- NatureServe Explorer is...

Ambrosia cheiranthifolia 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/observing-birds-in-nature-can-help-protect-them-in-captivity/">Canada.</a> NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.

FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.Ambrosia cheiranthifolia is a rare species of flowering plant known by the common names South Texas ambrosia and Rio Grande ragweed. It is native to the coast of South Texas and the Mexican states of Tamaulipas and Coahuila. It occurs in coastal prairie, grassland, and mesquite shrubland habitat. It has declined because its native habitat has been cleared for development, with remaining open savanna invaded by non-native grasses such as buffelgrass. Today there are perhaps 20 populations remaining, but some of these may have very few genetic individuals because the species is clonal, with many cloned plants attached by one rhizome. It is not certain that the plant still exists in Mexico. This is a federally listed endangered species of the United States.

Ambrosia cheiranthifolia

Ambrosia cheiranthifolia NatureServe Explorer Species Reports -- NatureServe Explorer is...

Ambrosia pumila 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/intense-wildfires-in-manitoba-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%20america&amp;qs=n&amp;form=QBRE&amp;sp=-1&amp;pq=&amp;sc=0-0&amp;sk=&amp;cvid=2A486C7EEB7F4DC9A48B1971A274D39A">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,

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.

Ambrosia pumila

Ambrosia pumila NatureServe Explorer Species Reports -- NatureServe Explorer is...

Amorpha crenulata NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and <a href="https://www.earth.com/news/changing-ocean-soundscapes-impact-animals-worldwide/">animals</a> too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- Amorpha crenulata 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.Amorpha is a genus of plants in the pea family, Fabaceae. All the species are native to North America, from southern Canada, most of the United States, and northern <a href="https://www.bing.com/search?q=mexico&amp;cvid=0f7d70d300f04dc18b0844e1d5b25ab1&amp;FORM=ANAB01&amp;PC=HCTS">Mexico.</a> They are commonly known as false indigo. The name Amorpha means "deformed" or "without form" in Greek and was given because flowers of this genus only have one petal, unlike the usual "pea-shaped" flowers of the Faboideae subfamily. Amorpha is missing the wing and keel petals.Rank Scientific Name and Common Name; Kingdom: Plantae – Plants Subkingdom: Tracheobionta – Vascular plants Superdivision: Spermatophyta

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.

Amorpha crenulata

Amorpha crenulata NatureServe Explorer Species Reports -- NatureServe Explorer is...

Amphianthus pusillus NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and <a href="https://www.bing.com/search?q=canada&amp;cvid=1b4627e41b1a4979b84dbf640530412a&amp;aqs=edge.0.69i59j69i60l4.687j0j9&amp;FORM=ANAB01&amp;PC=HCTS">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.earth.com/video/the-great-lakes-of-north-america/">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

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.

Amphianthus pusillus

Amphianthus pusillus NatureServe Explorer Species Reports -- NatureServe Explorer is...

Amsinckia grandiflora 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. It is still very much endangered.

Amsinckia grandiflora ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, <a href="https://www.earth.com/earthpedia-articles/fungi-characteristics-and-function/">fungi</a>, and microbes of North America and the world.Amsinckia grandiflora is a species of fiddleneck known by the common name large-flowered fiddleneck. This is a wildflower endemic to California and considered a Critically endangered species on the state and national level.(Amsinckia grandiflora) Large-flowered fiddleneck is a California endangered plant species, which means that killing or possessing the plant is prohibited by the California Endangered Species Act (CESA).Large-flowered fiddleneck is also listed as endangered under the federal Endangered Species Act and critical habitat has been designated for the species.

FWS Digital Media Library -- The U.S. <a href="https://www.bing.com/search?q=fish&amp;cvid=c2aaa8146a2347dc836abf18a5e53d54&amp;FORM=ANAB01&amp;PC=HCTS">Fish</a> and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.

Amsinckia grandiflora

Amsinckia grandiflora NatureServe Explorer Species Reports -- NatureServe Explorer is...

Amsonia kearneyana 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=c7d763cdc9244ceebcdbf99ab9aaeb61&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.Amsonia kearneyana is a rare species of flowering plant in the dogbane family known by the common name Kearney's bluestar. It is native to Arizona, where there is only one native population in the Baboquivari Mountains of Pima County. There may also be a population just south of the border in Sonora, Mexico. The plant was federally listed as an endangered species in 1989. At that time the global population of the plant was made up of eight individuals in a riparian canyon. Since that time the plant has been manually propagated in an attempt to increase its numbers. Threats to the tiny native population include habitat destruction from livestock

Amsonia kearneyana

Amsonia kearneyana NatureServe Explorer Species Reports -- NatureServe Explorer is...

Apios priceana NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and <a href="https://www.earth.com/news/changing-ocean-soundscapes-impact-animals-worldwide/">animals</a> too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=d174e18eaccc45be89de96ae62801d49&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.Apios priceana is a Federally Threatened native vine with a distribution in only two dozen counties, centered around central Tennessee. Apios priceana, the much rarer cousin of our native Apios americana, forms a 10' tall, well-behaved climbing bean, topped from June through August (NC) with attractive clusters of fragrant, light lavender flowers. The flowers, pollinated by both.

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.Apios priceana is a rare species of flowering plant in the legume family known by the common names Price's potato-bean, Price's groundnut, and traveler's delight. It is a climbing yellow-green vine in the growing from a stout, potato -like tuber. It is native to the U.S. states of Alabama, Mississippi, Kentucky, and Tennessee.

Apios priceana

Apios priceana NatureServe Explorer Species Reports -- NatureServe Explorer is...

Arabis georgiana 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.Arabis georgiana is most closely related to A. pycnocarpa, from which it is easily distinguished by having narrower fruits, longer petals, and subsessile cruciform or 3-rayed trichomes on abaxial surfaces of basal leaves. It is known only in Alabama from Bibb and Elmore counties and in Georgia from Stewart County.

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. Arabis georgiana Harper – Georgia rockcress Subordinate Taxa. This <a href="https://www.bing.com/search?q=plants&amp;cvid=bd291d078ee4476faca87becd12d3c4e&amp;FORM=ANAB01&amp;PC=HCTS">plant</a> has no children Legal Status. Threatened and Endangered Information: This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.

Arabis georgiana

Arabis georgiana NatureServe Explorer Species Reports -- NatureServe Explorer is...

Arabis hoffmannii 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 <a href="https://www.earth.com/earthpedia-articles/perennial-vegetables-to-grow-in-north-america/">North America</a> and the world.Boechera hoffmannii is a rare species of flowering plant in the family Brassicaceae known by the common name Hoffmann's rockcress. It is endemic to the Channel Islands of California, where it is known from only three or four populations on two of the eight islands. A 2005 report estimated a remaining <a href="https://www.bing.com/search?q=global&amp;cvid=f45e143ad7684caeac58049c674b4b54&amp;pglt=43&amp;FORM=ANNTA1&amp;PC=HCTS">global</a> population of 244 individual plants. It is a federally listed endangered species.

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.Hoffmann's rockcress Subordinate Taxa. This plant has no children Legal Status. Threatened and Endangered Information: This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists.

Arabis hoffmannii

Arabis hoffmannii NatureServe Explorer Species Reports -- NatureServe Explorer is...

Arabis macdonaldiana 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. Arabis macdonaldiana is a species of flowering plant in the mustard family known by the common name MacDonald's rockcress. It is native to northern <a href="https://www.earth.com/news/californias-rainy-season-has-been-pushed-forward-by-a-month/">California</a> and Oregon, where it grows on newly exposed, barren serpentine soils in openings in temperate coniferous forest habitat. It is a rare and endangered plant known from several sites in California and approximately two occurrences in Oregon, where it is threatened mainly by mining, particularly of nickel, which is one of several metals plentiful in the serpentine. On September 29, 1978, this was the second plant to be federally listed as an endangered species.

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.

Arabis macdonaldiana

Arabis macdonaldiana NatureServe Explorer Species Reports -- NatureServe Explorer is...

Arabis perstellata. 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 <a href="https://www.earth.com/video/plants-cannot-keep-up-with-rising-co2-levels/">plants</a> and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

Braun's rock-cress, Arabis perstellata, a perennial member of the mustard family (Brassicaceae or Cruciferae), is comprised of small rock cress and large rock cress subspecies that occupy distinct geographic areas in Kentucky and Tennessee, respectively. E. L. Braun described this taxon in 1940 from plants collected on wooded hillsides along Elkhorn Creek in Franklin County, Kentucky, distinguishing it from similar species in the area. Current taxonomy recognizes his distinction between A. shortii and A. …

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. This rockcress is a <a title="Perennial plant" href="https://en.wikipedia.org/wiki/Perennial_plant">perennial</a> <a title="Herbaceous plant" href="https://en.wikipedia.org/wiki/Herbaceous_plant">herb</a> with decumbent stems reaching 80 centimeters in length. The stems spread out horizontally, and often droop over the side of any structure the plant may be growing on, such as a rock or cliffside. The leaves are arranged in a basal rosette with some alternately arranged along the stem. The stems and leaves are gray-green in color due to a coating of whitish star-shaped hairs. The <a title="Inflorescence" href="https://en.wikipedia.org/wiki/Inflorescence">inflorescence</a> is a <a title="Raceme" href="https://en.wikipedia.org/wiki/Raceme">raceme</a> of flowers with four white or lavender petals each a few millimeters long. The fruit is a hairy <a title="Silique" href="https://en.wikipedia.org/wiki/Silique">silique</a> 1.5 to 2 centimeters in length which contains tiny reddish seeds.

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.

Arabis perstellata

Arabis perstellata. NatureServe Explorer Species Reports -- NatureServe Explorer is...

Arabis serotina 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 <a href="https://www.earth.com/video/plants-cannot-keep-up-with-rising-co2-levels/">plants</a> and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- Arabis serotina 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.is a biennial herb in the mustard family (Brassicaceae). In its characteristic nonreproductive stage, A. serotina has a subtle basal rosette of lobed leaves.

FWS Digital Media Library -- The U.S. <a href="https://www.bing.com/search?q=fish&amp;cvid=c2aaa8146a2347dc836abf18a5e53d54&amp;FORM=ANAB01&amp;PC=HCTS">Fish</a> and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.shale barren rockcress Subordinate Taxa. This plant has no children Legal Status.

Threatened and Endangered Information: This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.Visit the U.S. Fish &amp; Wildlife Service Species Profile link below for links to listing and other USFWS documents. Listed Endangered 1989.

Arabis serotina

Arabis serotina NatureServe Explorer Species Reports -- NatureServe Explorer is...

Arctomecon humilis NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 <a href="https://www.bing.com/search?q=plants&amp;cvid=9649cdbfadf3481d89dc7bd9c391c0a5&amp;FORM=ANAB01&amp;PC=HCTS">plants</a>, 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.Arctomecon humilis is a rare species of poppy called bearclaw poppy or dwarf bearclaw-poppy. It is endemic to Washington County, Utah, in the United States of <a href="https://www.earth.com/news/american-lobsters-face-an-uncertain-fate/">America</a>. It is a federally listed endangered species limited to barren, heavily gypsiferous soils in the immediate vicinity of St. George, Utah. Only a half-dozen populations are known, several of which are adjacent to or even within the urbanized area.

Arctomecon humilis) is the rarest — and perhaps most remarkable — species, due to its profusion of delicate white flowers and unique habitat. In many ways, the dwarf bear-poppy is a poster child for rare plant conservation.

Arctomecon humilis

Arctomecon humilis NatureServe Explorer Species Reports -- NatureServe Explorer is...

Arctostaphylos confertiflora NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 <a href="https://www.bing.com/search?q=plants&amp;cvid=de7c53bb5d9144b6b7895f48852789fb&amp;FORM=ANAB01&amp;PC=HCTS">plants</a>, 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 <a href="https://www.earth.com/earthpedia-articles/perennial-vegetables-to-grow-in-north-america/">North America</a> and the world.Arctostaphylos confertiflora is a rare species of manzanita known by the common name Santa Rosa Island Manzanita. This shrub is endemic to California, where it grows on the sandstone bluffs of Santa Rosa Island in the Channel Islands. This manzanita is listed as an endangered species by the United States Government.Arctostaphylos confertiflora Eastw. – Santa Rosa Island manzanita Subordinate Taxa. This plant has no children Legal Status. Threatened and Endangered Information: This plant is listed and is endangered still. The wildlife services shows the image above and the common area it usually is found

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.

Arctostaphylos confertiflora

Arctostaphylos confertiflora NatureServe Explorer Species Reports -- NatureServe Explorer is...

Arctostaphylos franciscana NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and <a href="https://www.earth.com/news/changing-ocean-soundscapes-impact-animals-worldwide/">animals</a> too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.

ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of <a href="https://www.bing.com/search?q=north+america&amp;cvid=7a65b841fbc34f84aa609f7e566ec14e&amp;FORM=ANAB01&amp;PC=HCTS">North America</a> and the world.

FWS Arctostaphylos franciscana 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.
<ul>
 	<li>A. h. franciscana - Franciscan manzanita - It was named by <a title="Alice Eastwood" href="https://en.wikipedia.org/wiki/Alice_Eastwood">Alice Eastwood</a> and is native to the city of <a title="San Francisco" href="https://en.wikipedia.org/wiki/San_Francisco">San Francisco</a>. It was thought to be extinct in the wild until one specimen was discovered in 2009.Less than a month later, <a class="mw-redirect" title="Caltrans" href="https://en.wikipedia.org/wiki/Caltrans">Caltrans</a> transplanted this specimen to make way for the <a class="mw-redirect" title="Doyle Drive Replacement Project" href="https://en.wikipedia.org/wiki/Doyle_Drive_Replacement_Project">Doyle Drive Replacement Project</a>. The <a class="mw-redirect" title="U.S. Fish and Wildlife Service" href="https://en.wikipedia.org/wiki/U.S._Fish_and_Wildlife_Service">U.S. Fish and Wildlife Service</a> designated the Franciscan manzanita as an endangered species on October 5, 2012. The <a title="National Park Service" href="https://en.wikipedia.org/wiki/National_Park_Service">National Park Service</a> and <a title="Golden Gate National Parks Conservancy" href="https://en.wikipedia.org/wiki/Golden_Gate_National_Parks_Conservancy">Golden Gate National Parks Conservancy</a> are attempting to cross-pollinate the preserved specimen in order to reintroduce the subspecies in the wild.</li>
 	<li>A. h. hearstiorum - Hearst's manzanita - native to <a title="San Luis Obispo County, California" href="https://en.wikipedia.org/wiki/San_Luis_Obispo_County,_California">San Luis Obispo County</a></li>
 	<li>A. h. hookeri - grows in the <a title="Santa Cruz Mountains" href="https://en.wikipedia.org/wiki/Santa_Cruz_Mountains">Santa Cruz Mountains</a> and nearby</li>
 	<li>A. h. montana - Mt. Tamalpais manzanita - native to <a title="Mount Tamalpais" href="https://en.wikipedia.org/wiki/Mount_Tamalpais">Mount Tamalpais</a></li>
 	<li>A. h. ravenii - Presidio manzanita - one single plant and a few clones exist at the <a title="Presidio of San Francisco" href="https://en.wikipedia.org/wiki/Presidio_of_San_Francisco">Presidio of San Francisco</a>. Federally listed as an <a title="Endangered species" href="https://en.wikipedia.org/wiki/Endangered_species">endangered species</a> of the United States.</li>
</ul>

Arctostaphylos franciscana

Arctostaphylos franciscana NatureServe Explorer Species Reports -- NatureServe Explorer is...

Chlorella vulgaris is a small species of microalga that is rapidly becoming the new champion in superfoods. It combines high nutritional power with sustainable production methods and may represent a game-changer in terms of global food security.



Could this little green powerhouse be the future of sustainable nutrition? Science is starting to say yes.



<h2 class="wp-block-heading" id="h-chlorella-vulgaris-is-a-nutritional-powerhouse">Chlorella vulgaris is a nutritional powerhouse</h2>



This tiny <a href="https://www.earth.com/news/arctic-microalgae-show-photosynthesis-is-possible-in-near-darkness/" target="_blank" rel="noreferrer noopener">microalga</a> is abundant in freshwater habitats and uses sunlight and carbon dioxide to manufacture its own food, even though its entire body consists of only a single cell. 



Previous <a href="https://www.jstor.org/stable/3106856?origin=crossref">research</a> has found that Chlorella vulgaris cells contain almost 50% protein, along with a healthy supply of fats, carbohydrates, and various vitamins and minerals.



This makes algae a go-to <a href="https://www.earth.com/news/algae-may-be-the-future-of-sustainable-superfoods/" target="_blank" rel="noreferrer noopener">superfood</a> for our increasingly health-conscious society. Not only is it rich in nutrients, but its cultivation requires minimal land and water use. 



Thus, it is a way to reduce our environmental footprint while eating without concerns about animal cruelty or damage to the planet.



<h2 class="wp-block-heading" id="h-healthy-for-body-and-environment">Healthy for body and environment</h2>



Its environmental friendliness is not the end of its superpowers - it also has antioxidant properties and supports immune function, making it an attractive, nutrient-dense addition to food products.



It is currently marketed on a small scale in tablet and powder form, as a food supplement.



In this current wave of health and eco-conscious awakening, a team of scientists from the <a href="https://www.birmingham.ac.uk/" target="_blank" rel="noreferrer noopener">University of Birmingham</a> have investigated the potential of Chlorella vulgaris as a large-scale source of nutrients for humans.



“Chlorella vulgaris could be one of the superfoods that redefine the future of food innovation,” they state. However, they caution that realizing this potential food revolution will not be without hurdles.



<h2 class="wp-block-heading" id="h-overcoming-challenges-for-widespread-adoption">Overcoming challenges for widespread adoption</h2>



The researchers acknowledge the need for further development in various areas. 



From refining cultivation techniques to processing methods that can enhance its appeal to the average consumer's palate, the future is ripe with opportunities for growth. 



“Our study underscores the critical role of applied research in addressing <a href="https://www.earth.com/news/vaccinating-plants-could-boost-global-food-security/" target="_blank" rel="noreferrer noopener">global food security</a> challenges while promoting environmental sustainability,” shared Dr. Helen Onyeaka, a co-author of the study.



The bright future of this microalga is dependent on continued technological advances, which can improve the efficiency of production and broaden its adoption among food producers.



The researchers note that the key to success involves enhancing strains of C. vulgaris using genetic modification and improving cultivation systems. They propose that the development of new culture systems could increase yields and cut costs.



Furthermore, they recommend the use of diverse bioreactors that allow for the tweaking of light and nutrient parameters in order to maximize yield in sterile conditions.



<h2 class="wp-block-heading" id="h-innovations-for-a-better-future">Innovations for a better future</h2>



In order to unlock the full potential of Chlorella vulgaris as a <a href="https://www.earth.com/news/study-confirms-that-broccoli-is-a-superfood/" target="_blank" rel="noreferrer noopener">mainstream superfood</a>, significant advances in processing and cultivation are essential.



Various techniques, such as mechanical milling and ultrasonication, can significantly increase nutrient accessibility, making this micro-organism's rich protein and vitamin content more bioavailable.



Additionally, advanced techniques such as pulsed electric fields can improve digestibility while retaining the production costs within economically acceptable limits. 



Sensory evaluations and consumer testing play a crucial role in refining the taste and texture of the final products, so that it is palatable and appealing to a wide audience.



As scientists continue to refine these processes, Chlorella vulgaris is poised to transition from a niche supplement to a widely accepted dietary staple that merges nutrition, sustainability, and food security into a single, green solution.



<h2 class="wp-block-heading" id="h-chlorella-vulgaris-a-superfood-with-far-reaching-benefits">Chlorella vulgaris: A superfood with far-reaching benefits</h2>



Chlorella vulgaris is not only a promising addition to the food industry but also a powerful tool in <a href="https://www.earth.com/news/increasing-plant-extinction-threatens-the-future-of-medicine-and-human-health/" target="_blank" rel="noreferrer noopener">medicine</a> and environmental sustainability.



Studies suggest it may aid in cholesterol reduction, cancer prevention, and neuroprotection against some diseases, including Alzheimer’s.



Its antioxidant and immune-boosting properties make it a compelling candidate for future medical research.



Additionally, this microalga contributes to sustainability by absorbing carbon dioxide, supporting carbon sequestration, and helping to purify wastewater through its ability to remove heavy metals and toxins. 



With continued research and technological advances, Chlorella vulgaris could become a cornerstone of health, industry, and environmental solutions, paving the way for a more <a href="https://www.earth.com/news/nature-inspires-solutions-for-a-sustainable-future/" target="_blank" rel="noreferrer noopener">sustainable future</a>.



The full study was published in the <a href="https://research.birmingham.ac.uk/en/publications/ichlorella-vulgarisi-as-a-food-substitute-applications-and-benefi" target="_blank" rel="noreferrer noopener">Journal of Food Science</a>.



-----



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



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



-----

This nutritional powerhouse is shaping up to be the next big 'superfood'

Chlorella vulgaris is a small species of microalga that is...

In a rapidly urbanizing world, grasslands and other green spaces are steadily disappearing. But what if there was a way to maintain these lush sanctuaries without the tiresome labor and cost? The solution may come from an unexpected source - fire.



Using fire to restore the land may seem paradoxical, yet it’s a practice that is deeply rooted in tradition. For generations, our ancestors relied on fire to sustain ecosystems.



Today, in our quest to balance progress and preservation, we've come full circle, rediscovering this ancient wisdom.



<h2 class="wp-block-heading" id="h-fire-can-save-grasslands">Fire can save grasslands</h2>



A group of researchers from <a href="https://www.kobe-u.ac.jp/en/" target="_blank" rel="noreferrer noopener">Kobe University</a> in Japan has recently conducted a study that reveals the potential of controlled burning, a labor-saving technique, in preserving disappearing grasslands.



The findings suggest that this method could contribute not only to preserving biodiversity but also to the survival of endangered plant species.



<h2 class="wp-block-heading" id="h-burning-has-helped-grasslands-for-centuries">Burning has helped grasslands for centuries</h2>



Grasslands require consistent maintenance. Over centuries, humans have been utilizing techniques such as grazing, mowing, and <a href="https://www.earth.com/news/controlled-burns-reduce-carbon-emissions-from-soil/" target="_blank" rel="noreferrer noopener">controlled burning</a> to fend off overbearing forests from encroaching these pastures.



However, with a boom in urbanization and a subsequent decline in rural population, maintaining these green belts has become an increasing challenge.



This is where "prescribed" burning comes in - a technique that deliberately sets controlled fires. While fire may seem destructive, when managed carefully, it can be a vital tool in preserving these threatened ecosystems.



Led by master's student ASADA Airi and ecologist USHIMARU Atushi at Kobe University, the research sheds light on the significance of soil conditions in these fire management practices.



<h2 class="wp-block-heading" id="h-fire-s-impact-on-grasslands">Fire’s impact on grasslands </h2>



The study was conducted on a training site of the Japan Self-Defense Forces near Mount Fuji. Here, the team established 100 square-meter plots across the grasslands on four different types of soil.



Each plot's plant biodiversity and various physical and chemical factors were thoroughly studied and compared. 



The most intriguing part of the research revealed that some areas, particularly on young lava flows, were hotspots for endangered species.



The researchers observed that these young lava flows had greater overall species richness, native species richness, and prevalence of endangered species than grasslands on both young and old scoria bedrock.



The team concluded that acidity, soil depth, and rock and stone coverage played pivotal roles in supporting these unique ecosystems, thus enabling the survival of <a href="https://www.earth.com/news/rare-plants-are-facing-extinction-in-the-scottish-mountains/" target="_blank" rel="noreferrer noopener">rare plants</a>.



<h2 class="wp-block-heading" id="h-fire-helps-balance-ecosystems">Fire helps balance ecosystems</h2>



A key point illuminated by the research is the seemingly perfect balance <a href="https://www.earth.com/news/natures-ecosystems-constantly-share-energy-to-achieve-balance/" target="_blank" rel="noreferrer noopener">nature</a> maintains. Acidic soils, which normally make nutrient absorption difficult for plants, help to counterbalance otherwise dominant species.



Controlled burning is a strategy to reset plant growth, allowing these often sidelined species a much-needed chance to thrive.



Ushimaru noted that the study pinpoints environments where managed burning can help support a significant variety of <a href="https://www.earth.com/news/what-is-the-future-of-the-endangered-species-act/" target="_blank" rel="noreferrer noopener">endangered species</a>.



The findings are a step forward in our understanding of how to best preserve and restore grassland environments and species diversity through properly managed fire.



<h2 class="wp-block-heading" id="h-vital-role-of-grasslands">Vital role of grasslands</h2>



Grasslands are more than just open fields; they are essential ecosystems that support <a href="https://www.earth.com/news/global-biodiversity-crisis-is-actually-worse-than-we-thought/" target="_blank" rel="noreferrer noopener">biodiversity</a>, store carbon, and regulate water cycles. 



Covering nearly 40% of Earth’s land surface, grasslands provide habitat for countless plant and animal species. Their deep-rooted vegetation helps prevent soil erosion, making them critical for maintaining healthy landscapes.



Beyond their ecological value, grasslands play a pivotal role in agriculture and food security. They support livestock grazing, which sustains rural economies, and their rich soils contribute to sustainable farming. 



<h2 class="wp-block-heading" id="h-grasslands-support-climate-stability">Grasslands support climate stability</h2>



Additionally, grasslands act as natural buffers against extreme weather, absorbing excess rainfall and reducing the risk of floods and droughts.



However, with increasing urbanization and agricultural expansion, these landscapes are disappearing at an alarming rate. Without proper management, they risk being overrun by forests, invasive species, or completely degraded.



This is where techniques like controlled burning become invaluable, helping to maintain the delicate balance that allows grasslands to flourish.



By recognizing their importance and investing in conservation efforts, we can ensure that grasslands continue to provide essential benefits for both nature and human society.



The full study was published in the journal <a href="https://nph.onlinelibrary.wiley.com/doi/10.1002/ppp3.10629" target="_blank" rel="noreferrer noopener">Plants People Planet</a>.



-----



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



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



-----

Controlled fires can help us save grasslands from disappearing

In a rapidly urbanizing world, grasslands and other green spaces...

In a world where reproductive health is becoming an increasingly important topic, scientists are constantly exploring new ways to address challenges related to fertility. One recent discovery is resveratrol, a natural compound found in common foods like grapes, blueberries, and raspberries.



This polyphenolic compound has long been celebrated for its anti-aging, anti-inflammatory, and antioxidant properties. However, recent research suggests that its potential extends far beyond <a href="https://www.earth.com/news/healing-chronic-wounds-with-gold-and-red-wine/" target="_blank" rel="noreferrer noopener">general wellness</a>. 



A systematic review published in the International Journal of Molecular Sciences sheds light on how resveratrol could play a pivotal role in improving female fertility. This discovery opens up exciting possibilities for women seeking natural solutions to enhance their reproductive health.



<h2 class="wp-block-heading" id="h-impact-of-resveratol-on-female-fertility">Impact of resveratol on female fertility</h2>



The researchers analyzed data from 24 studies, which included a total of 9,563 human participants. Among these, four studies specifically examined the <a href="https://www.earth.com/news/moderate-wine-consumption-reduces-cardiovascular-risks/" target="_blank" rel="noreferrer noopener">impact of resveratrol</a> on the number of matured oocytes. 



Two reported an increase, while the other two found no significant changes. On the other hand, two studies focusing on the quality of matured oocytes showed improvements in women who <a href="https://www.earth.com/news/how-polyphenols-promote-heart-health-youthful-skin-and-a-healthy-waistline/" target="_blank" rel="noreferrer noopener">consumed resveratrol</a>. 



These findings point to the compound's potential to enhance reproductive health naturally.



<h2 class="wp-block-heading" id="h-how-does-resveratrol-support-fertility">How does resveratrol support fertility?</h2>



One possible explanation for resveratrol's positive effects lies in its ability to reduce oxidative stress. Oxidative stress is known to damage mitochondrial DNA and accelerate cellular aging. 



By protecting against this damage, resveratrol may help preserve the integrity of oocytes and extend ovarian lifespan. Additionally, the compound activates sirtuin 1 (SIRT1), a molecule that tends to decrease in aged oocytes. This activation could slow down cell aging and improve overall <a href="https://www.earth.com/news/wine-production-in-a-warming-world-the-winners-and-losers/" target="_blank" rel="noreferrer noopener">reproductive function</a>.



Beyond its effects on oocyte quality, the review also explored resveratrol's potential in addressing specific fertility challenges. 



For instance, it may offer benefits for women dealing with infertility caused by endometriosis, polycystic ovary syndrome (PCOS), or obesity-related issues. 



By inhibiting pathways involved in androgen production and reducing inflammation, resveratrol could provide a natural approach to managing these conditions.



<h2 class="wp-block-heading" id="h-mixed-results-on-miscarriage-rates">Mixed results on miscarriage rates</h2>



While the findings are encouraging, the review also revealed inconsistencies in data related to pregnancy and miscarriage rates. 



Among five studies that examined pregnancy outcomes, two reported an increase in pregnancy rates among women taking resveratrol, two found no difference, and one noted a decrease. 



Interestingly, the same study that observed a decline in pregnancy rates also reported a rise in miscarriage rates. Another study, however, found no significant changes in miscarriage occurrences. 



These mixed results highlight the need for more comprehensive research to fully understand the compound's effects on reproductive outcomes.



Resveratrol is generally regarded as safe when consumed in moderate amounts through diet or supplements, with doses up to five grams per day considered acceptable for <a href="https://www.earth.com/news/why-red-wine-gives-some-people-a-headache/" target="_blank" rel="noreferrer noopener">short-term use</a>. 



However, the long-term safety of high-dose supplementation remains uncertain, particularly concerning potential risks during pregnancy.



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



Lee Smith, professor of public health at Anglia Ruskin University (<a href="https://www.aru.ac.uk" target="_blank" rel="noreferrer noopener">ARU</a>) and senior author of the paper, emphasized the importance of cautious optimism.



“Our systematic review on resveratrol and female fertility is a comprehensive overview of all current research, and it highlights the compound’s potential to improve reproductive outcomes and possibly pave the way for new, less invasive treatments, using natural substances,” he stated. 



However, Professor Smith also pointed out the limitations of the current evidence.



“Our findings are based on a number of limitations, including the limited number of human studies, the different parameters of each study and the lack of robust data on dosage and side effects, particularly related to birth defects or foetal abnormalities,” Smith explained. 



“There is a need for further clinical trials, involving human participants, in order to translate these promising results into practical recommendations for women looking to improve their fertility, including guidance on the safe and effective dosage of resveratrol.”



<h2 class="wp-block-heading" id="h-resveratrol-and-female-fertility">Resveratrol and female fertility</h2>



The potential of resveratrol to support female fertility represents an exciting avenue for future exploration. 



If ongoing and future studies confirm its benefits, this natural compound could offer a less invasive and more accessible option for women seeking to enhance their reproductive health. 



For now, researchers urge patience and continued investigation to ensure that any recommendations are grounded in solid, reliable evidence. As science progresses, resveratrol may emerge as a valuable tool in the journey toward improved fertility.



The study is published in the <a href="https://www.mdpi.com/1422-0067/25/23/12792" target="_blank" rel="noreferrer noopener">International Journal of Molecular Sciences</a>. 



-----



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



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



-----

Resveratrol in grapes and wine may naturally boost female fertility

In a world where reproductive health is becoming an increasingly...

Scientists have found that insect frass - a blend of excreta, feed, and molted skins - is far from a mere waste product. Instead, it could play a key role in advancing greener, more sustainable agriculture.



The study was focused on "mini-livestock," including the humble yellow mealworm, the bouncy banded cricket, and the robust black soldier fly.



Often underestimated, these insects are being cultivated as an alternative protein source for animals, playing a crucial role in the shift toward more sustainable agricultural practices. However, what they leave behind may be just as valuable - if not more - than the protein they provide.



<h2 class="wp-block-heading" id="h-insect-frass-more-than-just-waste">Insect frass: More than just waste</h2>



Insect frass is a nutrient-rich byproduct of insect farming. In contrast to regular <a href="https://www.earth.com/news/beer-byproducts-and-manure-used-to-increase-crop-yields/" target="_blank" rel="noreferrer noopener">manure</a>, frass is inherently pathogen-poor and rich in nutrients such as nitrogen, phosphorus, and carbon.



The nutrients in insect frass make it a promising organic fertilizer that can augment soil health and plant growth without reliance on synthetic fertilizers. This finding sets the stage for a game-changing shift in <a href="https://www.earth.com/news/farmers-adopt-regenerative-agriculture-better-soil-health/" target="_blank" rel="noreferrer noopener">agriculture</a>.



In previous studies, a team of researchers led by the United States Department of Agriculture (USDA)’s&nbsp;<a href="https://www.ars.usda.gov/">Agricultural Research Service</a>&nbsp;(ARS) set out to explore the potential benefits of insect frass. 



The results showed that frass can compete with fossil fuel-based fertilizers with its higher carbon and nitrogen content, while being less pathogenic than other animal manures.



Collaborating with partners from the <a href="https://uada.edu/" target="_blank" rel="noreferrer noopener">University of Arkansas System Division of Agriculture</a>, the ARS team further studied the potential of frass as an organic fertilizer when used as a soil amendment.



<h2 class="wp-block-heading" id="h-the-proof-is-in-the-soil">The proof is in the soil</h2>



The researchers embarked on an intense two-year field study. The results were quite astounding.



Yellow mealworm frass demonstrated impressive capabilities. It managed to double the soil's carbon content while tripling its <a href="https://www.earth.com/news/earth-has-too-much-and-too-little-nitrogen-at-the-same-time/" target="_blank" rel="noreferrer noopener">nitrogen</a> content.



This was significantly higher compared to other sources such as poultry litter and ammonium nitrate. Most importantly, the frass-enriched soil produced similar crop yields and carbon dioxide emission rates.



"Insect frass substantially improved soil fertility which showed its ability to be used as an alternative to inorganic <a href="https://www.earth.com/news/carbon-emissions-from-fertilizers-could-be-cut-by-80-percent/" target="_blank" rel="noreferrer noopener">fertilizers</a>," said Amanda Ashworth, a soil scientist at the ARS Poultry Production and Product Safety Research Unit in Fayetteville, Arkansas. 



"This is important since insect farming is on the rise and circular agricultural systems (agricultural by-products that are recycled back into production systems) can be sustainable avenues for growing foods in the future."



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



The question is, are we ready to embrace this change? As the world witnesses an increased demand for sustainable protein sources, the insect farming industry is experiencing a surge in growth. 



According to the Global Edible Insects Market Forecast to 2030 report, the industry is set to grow at an annual pace of 28%, with an anticipated market value of $8 billion U.S. dollars by 2030.



Insect frass stands as a powerful catalyst for change, moving us towards a greener future. It promises a sustainable alternative in agriculture - one that makes use of waste to enhance our environment and feed our growing populations.



The research shows that insect frass is not just waste - it's a potential goldmine, waiting to be discovered and harnessed.



<h2 class="wp-block-heading" id="h-insect-frass-and-regenerative-farming">Insect frass and regenerative farming</h2>



As the agricultural industry shifts toward more eco-friendly practices, insect frass is being recorgnized as an important player in regenerative farming. 



In contrast to traditional fertilizers, which can degrade the soil and contaminate water, insect frass promotes microbial activity and improves soil structure. 



This natural byproduct not only replenishes essential nutrients but also supports long-term <a href="https://www.earth.com/news/healthy-soils-produce-a-symphony-of-sounds/" target="_blank" rel="noreferrer noopener">soil health</a> by promoting beneficial bacteria and fungi.



With fears of fertilizer shortages and environmental damage due to synthetic alternatives looming, insect frass presents a promising alternative.



So far, farmers who have embraced this organic amendment are reporting greater crop resilience, reduced chemical input dependence, and soil biodiversity improvements. 



As research continues, insect frass may ultimately transform the way food is grown, making agriculture not only more productive but truly sustainable.



The full study was published in the journal <a href="https://www.nature.com/articles/s41598-025-87075-8" target="_blank" rel="noreferrer noopener">Scientific Reports</a>.



-----



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



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



-----

Future of farming: Insect waste reshapes soil health

Scientists have found that insect frass - a blend of...

Predicting and mitigating the effects of climate change while preserving biodiversity is a top priority for both scientists and policymakers. As climate change intensifies, leading to more frequent and severe droughts, understanding the impact on plant ecosystems has become increasingly important. 



One of the main challenges is forecasting changes in species richness due to shifts in precipitation patterns. 



While it’s established that regions with more water generally support greater plant diversity, results vary at smaller plot levels concerning how rainfall affects species richness.



To improve predictions, it’s essential to explore the underlying mechanisms - particularly how intense droughts and long-term rainfall changes impact <a href="https://www.earth.com/news/un-talks-on-the-drought-crisis-end-without-agreement/" target="_blank" rel="noreferrer noopener">biodiversity</a>.



A new study shows that increased aridity at the plot level is indeed linked to a decrease in plant species richness, and this connection is even more pronounced following extreme droughts. 



However, this phenomenon is not easy to detect because in the absence of drought, dominant plant species can obscure this effect.



<h2 class="wp-block-heading" id="h-rainfall-drought-and-plant-diversity">Rainfall, drought, and plant diversity</h2>



Experts at the <a href="https://ecolres.hun-ren.hu/en/home/" target="_blank" rel="noreferrer noopener">HUN-REN Centre for Ecological Research</a> in Hungary examined the intricate connections between long-term changes in rainfall, extreme drought conditions, the biomass of dominant plant species, and plant species diversity in a dryland ecosystem.



The research reveals that increased dryness leads to a reduction in plant species diversity in drylands and uncovers the mechanisms through which rising aridity contributes to biodiversity loss in these fragile <a href="https://www.earth.com/news/climate-change-is-now-the-driving-force-behind-droughts/" target="_blank" rel="noreferrer noopener">ecosystems</a>.



Using data from a seven-year climate change field experiment, the researchers conducted a path analysis to examine how precipitation influences species diversity, both directly and indirectly. 



The experiment simulated an extreme drought event followed by long-term variations in summer rainfall with the use of rainout shelters.



Initial analysis showed a strong positive relationship between rainfall and species diversity after extreme drought treatment, but this effect was absent without drought.



<h2 class="wp-block-heading" id="h-dominant-plant-species-and-droughts">Dominant plant species and droughts</h2>



Interestingly, the path analysis uncovered another layer. In the absence of drought, increased rainfall boosted the biomass of dominant grass species, leading to a decrease in overall <a href="https://www.earth.com/news/megadroughts-are-becoming-more-frequent-and-severe/" target="_blank" rel="noreferrer noopener">plant diversity</a>.



Nevertheless, the direct effect of rainfall remained positive, enhancing species richness even when dominant species exerted a suppressive impact. Additionally, the study revealed that past extreme droughts strengthened the link between rainfall and species diversity. 



“Droughts weaken dominant species, creating opportunities for other plants to thrive, potentially altering the plant community,” explained study lead author Dr. Gábor Ónodi.



The findings highlight the complex interactions between rainfall, dominant species, and biodiversity. 



The research shows that while rainfall can boost plant diversity, its benefits are often mediated by the presence of dominant species that can suppress others.



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



The findings have significant implications for predicting how <a href="https://www.earth.com/news/how-persistent-droughts-will-impact-wildlife-in-the-u-s/" target="_blank" rel="noreferrer noopener">natural ecosystems</a> will respond to future climate change.



“As global temperatures rise and precipitation patterns become more extreme, ecosystems may become increasingly sensitive to changes in water availability,” noted Dr. György Kröel-Dulay, the lead researcher.



The study highlights the importance of considering both direct and indirect effects when evaluating the impact of climate change on biodiversity.



“By deepening our understanding of these dynamics, we can better anticipate upcoming challenges and develop more effective strategies for conserving biodiversity in a world facing growing environmental uncertainties,” said senior author Dr. Zoltán Botta-Dukát.



This research serves as a valuable step toward understanding how ecosystems might adapt to changing climates and what measures can be taken to protect their rich diversity.



<h2 class="wp-block-heading" id="h-moving-forward-with-conservation-efforts">Moving forward with conservation efforts</h2>



The insights gained from this study provide a clearer picture of how climate change affects <a href="https://www.earth.com/news/global-drought-has-caused-crisis-levels-of-food-and-water-scarcity/" target="_blank" rel="noreferrer noopener">biodiversity</a>, particularly in dryland ecosystems. 



By examining the interplay between rainfall, drought, and dominant plant species, scientists can begin to identify patterns that may help predict future ecological shifts. Such knowledge is crucial for developing strategies to safeguard biodiversity as global climates continue to evolve.



The work of the HUN-REN Centre for Ecological Research highlights the need for continued investigation into the complex relationships within ecosystems. 



As the planet faces increasing environmental uncertainties, studies like this offer hope for finding ways to preserve the natural world for future generations.



The study is published in the <a href="https://besjournals.onlinelibrary.wiley.com/doi/10.1111/1365-2745.14483" target="_blank" rel="noreferrer noopener">Journal of Ecology</a>. 



-----



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



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



-----

Plant diversity threatened by reduced rainfall and drought

Predicting and mitigating the effects of climate change while preserving...

Hummingbird flower mites are tiny hitchhikers with an electrifying secret. These minuscule arachnids have developed a remarkable survival strategy.



A new study reveals that the mites use static electricity generated by their hummingbird chauffeurs to leap from one flower to another.



The remarkable relationship between the mites and hummingbirds has puzzled researchers for years. 



In particular, scientists have questioned what determines the moment that the mites choose to hop onto or off of a hummingbird. This is a crucial part of the mites' survival, as it enables them to transition from flower to flower for sustenance and reproduction.



After years of speculation and study, researchers may have finally found the answer.



It all started with Carlos Garcia-Robledo, an associate professor in the <a href="https://eeb.uconn.edu/" target="_blank" rel="noreferrer noopener">Department of Ecology and Evolutionary Biology</a>, who noted that the mites seemingly preferred the first flower that a hummingbird visited. This observation led him to question why the mites were not hopping onto second or third flowers.



<h2 class="wp-block-heading" id="h-static-electricity-helps-mites-jump">Static electricity helps mites jump</h2>



Initially, the scientific community speculated that some kind of smell signal influenced the mites. However, after conducting experiments, Garcia-Robledo felt there had to be another explanation.



“I knew that it was not maybe the smell that played a major role in this because if you bring the mites to a laboratory, they don’t care much about <a href="https://www.earth.com/news/flower-smells-like-dead-insects-to-attract-coffin-flies/" target="_blank" rel="noreferrer noopener">smells of flowers</a> and so on. I knew it had to be something else,” he said.



The turning point came after Garcia-Robledo read a study about ticks and static electricity. An idea clicked. 



“Maybe something electrostatic was happening there. These mites are so tiny that they live at another level of perception, so of course, even little electric fields are important for them. This could help explain the mystery of how they can be fast enough to hitchhike on this family of birds,” he noted.



Armed with this new idea, Garcia-Robledo collaborated with Konstantine Manser, a Ph.D. student at the <a href="https://www.bristol.ac.uk" target="_blank" rel="noreferrer noopener">University of Bristol</a>, and Diego Dierick, a scientist at the <a href="https://tropicalstudies.org" target="_blank" rel="noreferrer noopener">Organization for Tropical Studies</a>. The team quickly constructed simple devices to test their theory.



<h2 class="wp-block-heading" id="h-unveiling-the-mite-s-electric-path">Unveiling the mite's electric path</h2>



To their astonishment, the results were immediate and compelling. The researchers observed that the mites reacted to the static electricity.



“We turned on the device, and instantaneously, they started to respond. That’s how we figured out that they were using <a href="https://www.earth.com/news/mystery-of-static-electricity-has-finally-been-solved/" target="_blank" rel="noreferrer noopener">static electricity</a>,” explained Garcia-Robledo.



Further testing revealed that the mites were not just responding to static electricity but to a specific frequency of the electric field. 



“The mites respond to the bouncing of a signal that is associated with the size, geometry, and vibration of the <a href="https://www.earth.com/news/hummingbirds-have-an-amazing-sense-of-touch-for-precise-navigation/" target="_blank" rel="noreferrer noopener">hummingbirds</a>, which reach frequencies between 20 and 160 Hz,” noted Garcia-Robledo.



<h2 class="wp-block-heading" id="h-different-mites-sense-different-signals">Different mites sense different signals</h2>



These discoveries have opened a new chapter in our understanding of hummingbird flower mites.



Each of the 19 mite species at La Selva demonstrates a unique preference for specific flowers and has unique structures in their legs that potentially allow them to detect different electrical frequencies.



“We think that there may be some specificity in the electric signals or different charges for flowers,” noted Garcia-Robledo.



As we continue to unravel the mysteries of hummingbird flower mites, we are reminded of the complex and little-understood ways in which life adapts and thrives.



In these tiny hitchhikers, we find another reflection of the incredible diversity and adaptability of our natural world.



<h2 class="wp-block-heading" id="h-masters-of-electricity">Masters of electricity</h2>



The ability of hummingbird flower mites to detect and respond to static electricity is probably the result of millions of years of evolutionary fine-tuning.



These tiny arachnids don’t just react to any electric field; they are sensitive to specific frequencies generated by the movement and vibrations of hummingbirds. 



But how did this ability develop, and why is it so crucial to their survival?



Researchers suspect that mites with a heightened sensitivity to electrical fields had an evolutionary advantage. Being able to time their jumps with precision ensures that they reach the right <a href="https://www.earth.com/news/flowers-blooming-92-days-earlier-due-to-climate-change/" target="_blank" rel="noreferrer noopener">flowers</a>, and minimizes the risk of getting stranded in an unsuitable environment. 



<h2 class="wp-block-heading" id="h-broader-implications-of-the-research">Broader implications of the research</h2>



Over generations, <a href="https://www.earth.com/news/lifes-rules-natural-selection-change-significantly-often-daphnia/" target="_blank" rel="noreferrer noopener">natural selection</a> may have favored mites with specialized structures in their legs. As Garcia-Robledo's team observed, these structures seem to help the mites detect and interpret electric signals.



The discovery that mites use electric fields for travel raises broader ecological questions. Could other tiny organisms also exploit similar mechanisms? 



Insects, pollen, or even microbes might interact with electrostatic forces in ways we have yet to fully understand. 



This new perspective challenges researchers to rethink how small-scale biological systems interact with invisible physical forces, and opens the door to discoveries beyond mites and hummingbirds.



While the full extent of electrostatic sensing in nature remains a mystery, one thing is certain - these tiny mites are not just passive passengers. They are finely adapted travelers that use hidden forces to navigate their microscopic world with astonishing precision.



The full study was published in the journal <a href="https://www.pnas.org/doi/10.1073/pnas.2419214122" target="_blank" rel="noreferrer noopener">Proceedings of the National Academy of Sciences</a>.



-----



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



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



-----

Hummingbird flower mites use static electricity to travel

Hummingbird flower mites are tiny hitchhikers with an electrifying secret....

Forests along Brazil’s rivers have played a crucial role in connecting the Amazon and Atlantic rainforests for millions of years. These green corridors have allowed tree species to migrate between the two forests, even though they are separated by vast expanses of dry forest and savanna. 



Until now, researchers believed that <a href="https://www.earth.com/news/trees-are-relocating-in-a-race-against-global-warming/" target="_blank" rel="noreferrer noopener">tree</a> migration only occurred during wetter climatic periods when rainforests expanded across South America. However, a new study from the Royal Botanic Garden Edinburgh (RBGE) and the <a href="https://www.exeter.ac.uk" target="_blank" rel="noreferrer noopener">University of Exeter</a> reveals a different story.



The research challenges the long-held assumption that tree species only moved between the Amazon and Atlantic forests during rare climate shifts. Instead, the study suggests that species have been dispersing continuously over time, using riverside forests as natural highways. 



This discovery reshapes the understanding of how rainforest biodiversity has evolved and highlights the ongoing importance of these ecological corridors.



<h2 class="wp-block-heading" id="h-tree-migration-through-generations">Tree migration through generations</h2>



Rather than short-term bursts of movement, <a href="https://www.earth.com/news/many-tree-species-are-moving-to-colder-and-wetter-regions/" target="_blank" rel="noreferrer noopener">tree species</a> have migrated slowly over many generations. The researchers found that trees growing along rivers helped species move gradually across the dry landscapes of Brazil.



“Rather than tree species being exchanged during specific wetter periods in the past, we found that species have dispersed consistently over time,” said Dr. James Nicholls of <a href="https://www.rbge.org.uk" target="_blank" rel="noreferrer noopener">RBGE</a>.



The study was focused on 164 species of Inga trees, a genus found widely in Latin American rainforests. By analyzing the DNA of these trees, the researchers reconstructed their evolutionary history, determining when different species diverged from their ancestors.



Mapping the locations of various&nbsp;Inga&nbsp;species further revealed patterns of movement between the Amazon and Atlantic forests.



This detailed genetic analysis uncovered a consistent pattern of species migration that spanned millions of years. The findings suggest that rainforest connectivity has depended not just on large-scale climate changes but also on localized ecological networks along rivers.



<h2 class="wp-block-heading" id="h-amazon-trees-migrate-more">Amazon trees migrate more</h2>



The study identified 16 to 20 instances where tree species from the Amazon successfully established themselves in the Atlantic forest. These events were spread across evolutionary history rather than being concentrated in specific periods when Brazil had a wetter climate. 



The findings indicate that <a href="https://www.earth.com/news/trees-are-moving-to-soils-that-lack-the-fungi-to-support-them/" target="_blank" rel="noreferrer noopener">trees</a> have been able to migrate across dry regions at a slow but steady pace, rather than relying on rare climate-driven rainforest expansions.



Interestingly, the researchers found only one or two cases where tree species moved in the opposite direction—from the Atlantic rainforest to the Amazon. This suggests an imbalance in species migration, likely due to the Amazon’s vast size and greater seed production. 



Because the Amazon is much larger, it likely sends out a greater number of seeds, increasing the chances of successful migration to the Atlantic forest.



This discovery reshapes the understanding of rainforest dynamics, showing that species movement is not just a relic of past climate changes but an ongoing process. It also suggests that even in modern times, forest corridors remain vital for biodiversity.



<h2 class="wp-block-heading" id="h-protecting-brazil-s-riverside-forests">Protecting Brazil’s riverside forests</h2>



The research highlights the importance of conserving forests along Brazil’s rivers. These green corridors allow <a href="https://www.earth.com/news/future-forests-which-tree-species-can-survive-climate-change/" target="_blank" rel="noreferrer noopener">tree species</a> to continue moving between the two rainforests, maintaining biodiversity and ecological balance. 



Brazilian law already provides legal protection for riverside forests, recognizing their critical role in preserving the country’s natural ecosystems.



“This legal protection - and efforts to preserve these riverside forests - are highly valuable for long-term habitat connectivity,” said Professor Toby Pennington from Exeter’s Department of Geography and the <a href="https://www.exeter.ac.uk/research/institutes/gsi/" target="_blank" rel="noreferrer noopener">Global Systems Institute</a>.



Beyond their role in species migration, these forests are essential for sustaining the extraordinary biodiversity of the Atlantic rainforest trees.



The Atlantic rainforest is home to approximately 3,000 more plant species than the Amazon, yet only 20% of it remains intact. Habitat destruction has put many species at risk, making conservation efforts more urgent than ever.



<h2 class="wp-block-heading" id="h-maintaining-rainforest-connections">Maintaining rainforest connections </h2>



“In the short term, we need to protect these precious rainforests. In the long term, our study shows that we must also conserve the connections between them,” said Pennington.



Protecting the Amazon and Atlantic rainforests requires more than just safeguarding individual patches of forest. It also depends on maintaining the ecological links that have allowed <a href="https://www.earth.com/news/trees-have-an-amazing-ability-to-adapt-to-new-climates/" target="_blank" rel="noreferrer noopener">tree</a> species to migrate and adapt over millions of years.



Ensuring the survival of riverside forests will not only help preserve the unique biodiversity of both rainforests but also support the broader health of Brazil’s ecosystems.



The study was funded by the United States <a href="https://www.nsf.gov" target="_blank" rel="noreferrer noopener">National Science Foundation</a>, emphasizing the global importance of understanding and protecting these critical rainforest connections.



The study is published in the journal <a href="https://royalsocietypublishing.org/doi/10.1098/rspb.2024.1559" target="_blank" rel="noreferrer noopener">Proceedings of the Royal Society B Biological Sciences</a>.



-----



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



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



-----

Rainforest trees use rivers as highways for migration

Forests along Brazil’s rivers have played a crucial role in...

The Brazil nut tree (Bertholletia excelsa) is a vital part of the Amazon's rich biodiversity, but its genetic diversity has faced centuries of disruption. 



Factors such as European colonization, extensive deforestation, and the extinction of large seed-dispersing animals like the giant sloth have all played a role in its decline.



The Brazil nut tree is also a symbol of ecological resilience, economic sustenance, and the intricate web of life within the rainforest. But now, its future is at stake as human activities are constantly shifting the ecology of the <a href="https://www.earth.com/news/amazon-trees-are-critically-endangered-even-in-protected-areas/" target="_blank" rel="noreferrer noopener">Amazon</a> Basin.



<h2 class="wp-block-heading" id="h-genomic-data-from-brazil-nut-trees">Genomic data from Brazil nut trees</h2>



A team of researchers recently embarked on a mission to investigate the genetic diversity and population dynamics of Brazil nut trees.



“This research provides an amazing opportunity to study how human actions, even in the distant past, have affected genetic makeup in a wild species over short time scales,” noted Detlef Weigel, an expert at the the <a href="https://www.mpg.de/151769/biology-tuebingen" target="_blank" rel="noreferrer noopener">Max Planck Institute</a> for Biology Tübingen. 



The scientists used up-to-date genomic techniques to analyze a total of 270 Brazil nut tree samples. These samples, each with known archaeological evidence, were collected from various locations.



The result of this analysis was a detailed genomic data sheet that identified over 126,000 genetic variants in the Brazil nut tree's genome. The data is a treasure trove of insights into the genetic health and adaptability of the species.



<h2 class="wp-block-heading" id="h-genetic-diversity-of-brazil-nut-trees">Genetic diversity of Brazil nut trees</h2>



The study suggests that, when compared to the diversity of other species, there has been a steep decline in the genetic diversity of Brazil nut trees over the past 20,000 years. But, it's not all gloom and doom.



Areas that have been managed by <a href="https://www.earth.com/news/indigenous-communities-provide-clues-to-healthy-brain-aging/" target="_blank" rel="noreferrer noopener">Indigenous communities</a> show more complex genetic backgrounds, revealing a deep connection between plant life and Indigenous land stewardship.



For example, younger trees (less than 200 years old) in the Tefé National Forest (TEF) show a greater diversity of genes. This is thanks to their adaptation to previous natural disturbances and to the management approaches of local communities that have led to genetic resilience. 



This exemplifies how traditional ecological practices can uphold the <a href="https://www.earth.com/news/echoes-of-the-past-whalings-long-term-impact-on-genetic-diversity/" target="_blank" rel="noreferrer noopener">genetic diversity</a> and health of a species while providing a model for sustainable management.



Victor Caetano-Andrade, a postdoctoral researcher in the Department of Coevolution of Land Use and Urbanisation at the Max Planck Institute of Geoanthropology, shared his insight.



“We aimed to bridge gaps in our understanding of the long-term anthropogenic influences on <a href="https://www.earth.com/news/large-herbivore-extinctions-drastically-affect-forest-ecosystems/" target="_blank" rel="noreferrer noopener">forest ecosystems</a>. Our findings demonstrate how Indigenous land management practices play a significant role in maintaining the genetic diversity of Brazil nut populations,” said Caetano-Andrade.



<h2 class="wp-block-heading" id="h-strengthening-collaboration-and-conservation">Strengthening collaboration and conservation</h2>



This innovative study highlights the crucial partnership between scientists and Indigenous land stewards. By leveraging their historical ecological knowledge, we can create more inclusive and effective conservation policies.



Looking ahead, the scientists plan to broaden their investigation to more regions and additional species within the Amazon rainforest.



The ultimate goal is to develop comprehensive conservation frameworks that protect Brazil nut trees and bolster the ecosystem's resilience.



<h2 class="wp-block-heading" id="h-ecological-and-economic-impacts">Ecological and economic impacts </h2>



The loss of genetic diversity in Brazil nut trees affects more than just the species itself. The impacts extend to other aspects of the <a href="https://www.earth.com/news/amazon-animals-will-suffer-as-the-rainforest-turns-into-savanna/" target="_blank" rel="noreferrer noopener">rainforest</a> ecosystem, as well as to local economies.



The Brazil nut tree is a keystone species that plays a crucial role in supporting biodiversity. These trees provide food and shelter for countless organisms - ranging from pollinators like orchid bees to large, fruit-eating mammals.



Reduced genetic diversity weakens the tree’s resilience to climate change, pests, and diseases, and increases the risk of population decline.



Moreover, this genetic bottleneck has economic consequences for communities that rely on Brazil nut harvesting as a primary source of income.



Declining tree health and lower yields could threaten a sustainable industry that has supported Amazonian livelihoods for centuries. 



Maintaining genetic variation through conservation efforts and Indigenous land stewardship will be essential for safeguarding not only the species but also the ecological and economic stability of the region.



The full study was published in the journal <a href="https://linkinghub.elsevier.com/retrieve/pii/S0960982224016919" target="_blank" rel="noreferrer noopener">Current Biology</a>.



-----



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



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



-----

Genetic legacy of the Brazil nut tree has been altered by human activity

The Brazil nut tree (Bertholletia excelsa) is a vital part...

The city of Sydney in Australia has gained new attention for something unexpected. Instead of sunbathers by the shore or bustling restaurant queues, curious groups have appeared at the Royal Botanic Garden to experience a "corpse flower." 



This flower is famous for being the largest bloom in the world, and for its overpowering odor. Some call it revolting; others call it mesmerizing. Either way, there’s no denying its draw.



The plant’s official name is <a href="https://gustavus.edu/academics/departments/biology/titanarum/faq.php" target="_blank" rel="noreferrer noopener">Amorphophallus titanum</a>, but its fans know it by a more colorful nickname: the corpse flower. Either way, its flowers have an odor that’s powerful enough to attract thousands.



<a href="https://findanexpert.unimelb.edu.au/profile/713188-emily-white" target="_blank" rel="noreferrer noopener">Dr. Emily White</a>, a horticultural scientist at the <a href="https://www.botanicgardens.org.au/" target="_blank" rel="noreferrer noopener">Royal Botanic Garden</a>, has studied rare tropical species for over a decade.



<h2 class="wp-block-heading" id="h-an-irresistible-stench">An irresistible stench</h2>



This short-lived spectacle <a href="https://www.usbg.gov/gardens-plants/corpse-flowers" target="_blank" rel="noreferrer noopener">only blooms</a> for about 24 hours every few years, when it releases a scent that many liken to the stench of rotting meat. 



Visitors report everything from hints of rancid socks to the smell of forgotten leftovers.



Staff members say nearly 20,000 people have navigated the winding pathways and stood patiently in line for a chance to <a href="https://www.earth.com/news/why-does-the-corpse-flower-smell-like-rotting-flesh/" target="_blank" rel="noreferrer noopener">see (and smell) the flower</a> up close.



Native to the rainforests of western Indonesia, the corpse flower was discovered in 1878 by Italian botanist <a href="https://www.kew.org/plants/titan-arum" target="_blank" rel="noreferrer noopener">Odoardo Beccari</a>. 



It has intrigued plant enthusiasts ever since, partly because it grows from an underground corm that can weigh hundreds of pounds.



<h2 class="wp-block-heading" id="h-corpse-flower-blooms-for-just-one-day">Corpse flower blooms for just one day</h2>



To see the plant in bloom is a rare event. The flower only lasts about a day, meaning that people who wish to see and smell it need to rush to the garden before the bloom collapses. 



If you miss it, there’s no knowing when it might come around again.



The wait might be four or five years, or even longer. The staff extended visiting hours and accepted donations from fascinated guests, hoping to give everyone a chance to witness the ephemeral wonder before it faded.



By the next afternoon, the flower would be spent, and the pungent smell would vanish, leaving just a tall, withered structure behind.



<h2 class="wp-block-heading" id="h-why-does-the-corpse-flower-stink">Why does the corpse flower stink?</h2>



The smell may be disagreeable to humans, but it’s essential for <a href="https://www.earth.com/news/some-orchids-have-fingers-to-pollinate-themselves/" target="_blank" rel="noreferrer noopener">pollination</a>.



While most flowers use pleasant fragrances to lure bees or butterflies, the corpse flower’s stench entices flies and beetles that specialize in feeding on carrion.



These insects mistake the odor for that of a rotting carcass, crawl deep into the bloom, and help transfer pollen in the process. 



This trick is vital to the corpse flower’s reproduction, though it can seem downright repugnant to most people brave enough to get close.



<h2 class="wp-block-heading" id="h-don-t-eat-the-fruit">Don't eat the fruit</h2>



Once pollination occurs, the flower produces bright red, round fruits that appear over the course of a few months. 



In the wild, they would be eaten by certain birds, like rhinoceros hornbills, which help disperse the seeds across the rainforest floor.



The fruits are poisonous to humans and not intended as a snack. Even if they form successfully, the plant requires substantial energy to generate them, so it usually remains dormant for years before attempting another bloom.



“We expect multiple corpse flower blooms per year,” states the <a href="https://www.usbg.gov/gardens-plants/corpse-flowers" target="_blank" rel="noreferrer noopener">U.S. Botanic Garden</a> on their official website, although they note that the timing is unpredictable.&nbsp;



Curious onlookers everywhere have tuned in to live feeds hosted by botanical institutions. Many gardens around the world keep at least one corpse flower in a specialized greenhouse, hoping for the day it sets off a flurry of excitement.



<a href="https://www.guinnessworldrecords.com/world-records/66511-largest-single-flower" target="_blank" rel="noreferrer noopener">Guinness World Records</a> shows that the tallest known specimen reached 10 feet 2 inches (just over 3 meters) when it bloomed in New Hampshire in 2010. 



The combination of size, smell, and rarity makes the corpse flower a consistent headliner whenever it decides to bloom.



<h2 class="wp-block-heading" id="h-corpse-flower-conservation">Corpse flower conservation</h2>



Despite its fame in public displays, the corpse flower faces major challenges in nature. 



Environmental pressure has reduced the number of wild plants, and it is officially classified as Endangered by the <a href="https://nc.iucnredlist.org/redlist/amazing-species/amorphophallus-titanum/pdfs/original/amorphophallus-titanum.pdf" target="_blank" rel="noreferrer noopener">International Union for the Conservation of Nature</a>.



Intensive logging and conversion of the plant’s Sumatran habitat into palm oil plantations have taken a toll. 



Several botanic gardens cooperate on cross-pollination and seed-sharing programs to broaden the gene pool, including the Royal Botanic Garden in Sydney, Kew in London, and various U.S. institutions.



These programs aim to safeguard the species through <a href="https://www.oxfordreference.com/display/10.1093/oi/authority.20110810104854504" target="_blank" rel="noreferrer noopener">ex situ</a> conservation efforts, an important lifeline for <a href="https://www.earth.com/news/saving-earths-most-endangered-plants-from-extinction-proving-difficult-botanic-gardens/" target="_blank" rel="noreferrer noopener">plants threatened</a> by habitat loss.



<h2 class="wp-block-heading" id="h-fascination-for-all-ages">Fascination for all ages</h2>



The corpse flower isn’t just an oddity for expert gardeners. Families with kids on school breaks have dropped by the glasshouse to see - and sniff - something unlike any rose or lily.



Its short-lived bloom offers an unforgettable lesson in biodiversity. Even the worst smell can be a good teacher.



If the lines of visitors are any clue, plenty of people want to learn more about this plant’s unusual approach to survival. 



The spectacle reminds us that nature is full of surprises, and sometimes the most memorable experiences are the ones that leave your nose crinkled and your eyes wide.



-----



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



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



-----

Corpse flowers smell like death, but thousands rush to see them bloom

The city of Sydney in Australia has gained new attention...

Colorectal cancer, one of the leading causes of cancer-related deaths worldwide, may have just found an unlikely foe in a common weed.



Artemisia herba-alba, a plant also commonly known as white wormwood or herba alba, has been used for medical purposes for thousands of years. It was originally used in the Middle East and North Africa.



This aromatic herb, which has been used to treat ailments such as bronchitis and digestive issues, is now capturing the attention of scientists for an even more meaningful purpose.



A recent study by researchers at the <a href="https://www.sharjah.ac.ae/" target="_blank" rel="noreferrer noopener">University of Sharjah</a> sheds light on the potential for white wormwood to fight colorectal cancer.



<h2 class="wp-block-heading" id="h-the-battle-against-colorectal-cancer">The battle against colorectal cancer</h2>



Colorectal cancer, or CRC, is a worldwide health concern. Ranked as the third most common type of <a href="https://www.earth.com/news/cancer-thrives-on-human-stress-as-it-spreads-throughout-the-body/" target="_blank" rel="noreferrer noopener">cancer</a> globally, it is responsible for nearly 10% of all cancer cases.



Colorectal cancer mainly affects patients over the age of 50 and is the second leading cause of death from cancer. With one million mortalities and two million new cases recorded in 2020 alone, there is an urgent need for more effective CRC treatments.



Study lead author Dr. Lara Bou Malhab is a research associate at the Sharjah University Research Institute for Medical and Health Sciences.



“Artemisia herba-alba&nbsp;could be a promising natural ingredient for new <a href="https://www.earth.com/news/better-cancer-tests-produce-better-cancer-treatments/" target="_blank" rel="noreferrer noopener">cancer treatments</a> based on (our study’s) findings," noted Dr. Bou Malhab. "Colorectal cancer is a common and serious illness, making it essential to find new and better treatments.”



<h2 class="wp-block-heading" id="h-how-the-plant-works">How the plant works </h2>



Extracts isolated from Artemisia herba-alba were found to contain compounds with the ability to combat colorectal cancer. These compounds arrest the growth of the malignant cells and trigger self-destruction irrespective of the genetic makeup of these cells.



The compounds also interfere with the cell division in the <a href="https://www.earth.com/news/unique-fingerprint-of-cancer-cells-revealed-in-hydrogen-atoms/" target="_blank" rel="noreferrer noopener">cancer cells</a> through proteins like Cyclin B1 and CDK1.



Furthermore, the herb extracts inhibit a pathway that significantly contributes to tumorigenesis, the PI3K/AKT/mTOR pathway.



“Our findings highlight the immense potential of Artemisia herba-alba as a natural source for developing innovative therapies against colorectal cancer, addressing the urgent need for treatments with fewer side effects and greater efficacy," said Dr. Malhab.



<h2 class="wp-block-heading" id="h-natural-substances-as-effective-drugs">Natural substances as effective drugs</h2>



Despite the call of modern medicine, the use of natural substances in synthesizing effective drugs with fewer side effects is an area that cannot be ignored, particularly in <a href="https://www.earth.com/news/new-anti-aging-drug-interleukin-11-boosts-lifespan-prevents-cancer-gray-hair/" target="_blank" rel="noreferrer noopener">cancer medications</a>.



Current chemotherapy drugs are plagued by the issues of cancer cells developing resistance and collateral damage in the form of side effects. This study, therefore, could have significant implications if noted and implemented by pharmaceutical giants.



While further research is necessary to unravel the specific molecular mechanisms and the clinical efficacy of Artemisia herba-alba in cancer treatment, there's no denying the potential that this unassuming <a href="https://www.earth.com/news/herbs-and-spices-linked-to-lower-blood-pressure/" target="_blank" rel="noreferrer noopener">herb</a> carries within its leaves. 



This study has contributed an important piece to the larger puzzle of creating more effective cancer treatments that are less harmful.



<h2 class="wp-block-heading" id="h-colorectal-cancer-a-growing-global-concern">Colorectal cancer: A growing global concern</h2>



Colorectal cancer remains one of the major health challenges facing the world. The incidence rates of this cancer have been on the rise, mainly due to lifestyle factors, an aging population, and genetic predispositions.



Though early detection through screening programs has improved survival rates, treatment options remain limited and often involve surgery, chemotherapy, and radiation - all of which carry significant drawbacks.



Traditional chemotherapy causes severe side effects, such as immune suppression, fatigue, and gastrointestinal distress.



This is why natural compounds such as Artemisia herba-alba are gaining attention. Experts are looking at plant-based solutions that could offer targeted cancer-fighting properties with fewer side effects.



If further research confirms the herb’s effectiveness, it will open doors to more accessible, well-tolerated therapies that could revolutionize colorectal cancer treatment.



With colorectal cancer cases estimated to reach 3.2 million annually by 2040, the need for better treatments has never been greater.



In light of this discovery on Artemisia herba-alba, researchers are bound to look towards nature for their future pharmacological discovery in cancer treatment.



The full study was published in the journal Food Science &amp; Nutrition.



-----



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



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



-----

Medicinal plant has great potential to fight colorectal cancer

Colorectal cancer, one of the leading causes of cancer-related deaths...

Imagine a world where the vibrant colors and splendor of Earth's wild plants and flowers dotting landscapes around the globe fall victim to extinction and vanish, one species at a time.



While this disturbing notion might seem far-fetched, the reality is that it's already beginning to happen.



Plant conservation is at a critical crossroads as botanic gardens around the world struggle to protect Earth’s most endangered plants. 



A recent review of the processes behind this global <a href="https://www.earth.com/news/biobanking-historic-initiative-aims-to-genetically-rescue-endangered-species/" target="_blank" rel="noreferrer noopener">species preservation</a> challenge provides scientists with details about exactly what these institutions face in their fight to save endangered and threatened plant species from extinction.



The critical question that emerges is - how can the guardian angels of our <a href="https://www.earth.com/news/why-some-plants-genus-spread-farther-grow-faster-than-others/" target="_blank" rel="noreferrer noopener">plant kingdom</a>, botanic gardens, rise to meet this challenge?



<h2 class="wp-block-heading" id="h-100-years-of-plant-conservation">100-years of plant conservation</h2>



The study examined records of fifty botanic gardens and arboreta around the world over the past 100 years, from 1921 to 2021. 



Encompassing over 500,000 plants between them, the goal was to uncover trends and shifts in living plant collections housed at these facilities.



The study's findings suggest that the collections at these gardens have reached their maximum capacity. 



In addition, due to various limitations and rules placed on collecting wild plants in different parts of the world, acquiring and protecting diverse <a href="https://www.earth.com/news/plant-diversity-darkspots-need-urgent-attention/" target="_blank" rel="noreferrer noopener">plant species</a> for conservation and study has become challenging.



The research also revealed that, on a global scale, the retention of threatened plants within these collections has not been successful despite the escalating extinction risk.



It raises serious questions about the priority given to combatting biodiversity loss across these gardens.



<h2 class="wp-block-heading" id="h-hurdles-in-saving-plants-from-extinction">Hurdles in saving plants from extinction</h2>



The study was spearheaded by Professor Samuel Brockington from <a href="https://www.museums.cam.ac.uk/museums/cambridge-university-botanic-garden" target="_blank" rel="noreferrer noopener">Cambridge University Botanic Garden</a>.



“A concerted, collaborative effort across the world’s botanic gardens is now needed to conserve a genetically diverse range of plants, and to make them available for research and future reintroduction into the wild,” Brockington implored.



The study, published in the journal Nature Ecology and Evolution, stated that the Convention on Biological Diversity (<a href="https://www.cbd.int/" target="_blank" rel="noreferrer noopener">CBD</a>) has considerably diminished the rate of plant collection from the wild.



This has greatly hampered the international exchange of plants.



“The impact of the Convention on Biological Diversity is a remarkable demonstration of the power and value of international agreements," stated Professor Brockington, who is also a Professor of Evolution at the University of Cambridge's <a href="https://www.plantsci.cam.ac.uk/" target="_blank" rel="noreferrer noopener">Department of Plant Sciences</a>.



"But it seems to be preventing individual botanic gardens from working with many globally threatened <a href="https://www.earth.com/news/how-many-invasive-plant-species-are-in-the-world/" target="_blank" rel="noreferrer noopener">plant species</a> that we could help save from extinction.” 



<h2 class="wp-block-heading" id="h-botanic-garden-meta-collections">Botanic garden meta-collections</h2>



Given that nearly 40% of the world’s plant diversity is at an increased <a href="https://www.earth.com/news/all-plants-on-earth-could-be-saved-from-extinction/" target="_blank" rel="noreferrer noopener">risk of extinction</a>, botanic gardens cannot single-handedly prevent species extinction. 



Therefore, a collective approach is proposed to store and safeguard diversity in living collections. 



Botanic gardens need to function as a 'meta-collection,’ pooling their resources, sharing data, and expertise.



<h2 class="wp-block-heading" id="h-what-can-be-done">What can be done?</h2>



While individual institutions like the <a href="https://www.rbge.org.uk" target="_blank" rel="noreferrer noopener">Royal Botanic Gardens Edinburgh </a>have achieved remarkable success in plant conservation, their efforts highlight both the potential and the limitations of working in isolation.



Global organizations such as Botanic Gardens Conservation International (<a href="https://www.bgci.org" target="_blank" rel="noreferrer noopener">BGCI</a>) have made strides in promoting collaboration through conservation consortia, yet these initiatives remain exceptions rather than the standard practice.



Smaller or regionally focused botanic gardens often face resource constraints that limit their capacity for impactful <a href="https://www.earth.com/news/effective-conservation-efforts-key-to-saving-biodiversity/" target="_blank" rel="noreferrer noopener">conservation efforts</a>. 



Without sufficient funding, expertise, or infrastructure, their ability to participate in large-scale projects is significantly hindered. 



Furthermore, the lack of robust data-sharing systems and collaboration across institutions exacerbates the challenge, preventing the formation of a cohesive global strategy.



The successes of these individual institutions and organizations serve as a foundation, but a more unified and coordinated effort is essential to effectively combat biodiversity loss on a global scale.



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



As climate change transforms growing conditions across different regions globally, it will be more challenging for individual botanic gardens to grow a diverse range of species. 



“<a href="https://www.earth.com/news/small-climate-changes-have-drastic-effects-on-tropical-plants/" target="_blank" rel="noreferrer noopener">Climate change</a> affects our work directly by altering local weather conditions - we’ve already seen record-breaking temperatures in Cambridge in recent years," Brockington lamented.



"That’s going to affect how well our plants survive, so we need to think rationally and collectively about the best locations to hold different species across the global network of living collections."



Genetic diversity plays a critical role in protecting plants at risk of extinction. The more individual plants of a species are in a collection, the greater the genetic diversity is likely to be.



<h2 class="wp-block-heading" id="h-where-do-we-go-from-here">Where do we go from here?</h2>



Last year, Cambridge University Botanic Garden advertised for a new "Expedition Botanist" to lead global plant-collection expeditions and contribute to vital conservation efforts.



Brockington believes in the importance of these expeditions and proposes a collaborative collection approach that creates equitable international partnerships.



The CBD, signed by 150 government leaders in 1992, commits each country to protect its biodiversity and promote sustainable development. 



Today, there are about 3,500 botanic gardens and arboreta worldwide, committed to studying, conserving and providing access to the world’s plants.



Organizations like the BGCI, a charity, work to mobilize botanic gardens and establish partnerships to secure plant diversity, benefiting people and the planet.



To sum it all up, we're in a race against time for these botanic gardens to adapt, innovate and collaborate in their fight against plant extinction. The future of our plant kingdom hinges on these collective efforts.



The full study was published in the journal <a href="https://www.nature.com/articles/s41559-024-02633-z" target="_blank" rel="noreferrer noopener">Nature Ecology &amp; Evolution</a>.



-----



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



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



-----

Saving Earth's most endangered plants from extinction is proving to be very difficult

Imagine a world where the vibrant colors and splendor of...

Endangered plants