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Wikispecies

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It covers Animalia, Plantae, Fungi, Bacteria, Archaea, Protista and all other forms of life.

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Distinguished author

Mary Agnes Chase Collecting Plants, Brazil, Image ID 96-548.tif

Mary Agnes Chase
1869–1963. Standard IPNI form: Chase

Mary Agnes Chase, née Merrill, was an American botanist who worked at the U.S. Department of Agriculture and the Smithsonian Institution. She is considered one of the world's outstanding agrostologists and is known for her work on the study of grasses, and also for her work as a suffragist. Chase was born in Iroquois County, Illinois and held no formal education beyond grammar school. That aside, she made significant contributions to the field of botany, authored over 70 scientific publications, and was conferred with an honorary doctorate in science from the University of Illinois. She specialized in the study of grasses and conducted extensive field work in North- as well as and South America. Her Smithsonian Field Books collection from 1897 to 1959 is archived in the Smithsonian Institution Archives.

In 1901, Chase became a botanical assistant at the Field Museum of Natural History under Charles Frederick Millspaugh, where her work was featured in two museum publications: Plantae Utowanae (1900) and Plantae Yucatanae (1904). Two years later, Chase joined the U.S. Department of Agriculture (USDA) as a botanical illustrator and eventually became a scientific assistant in systematic agrostology (1907), assistant botanist (1923), and associate botanist (1925), all under Albert Spear Hitchcock. Chase worked with Hitchcock for almost twenty years, collaborating closely and also publishing, for instance The North American Species of Panicum (1910).

Following Hitchcock's death in 1936, Chase succeeded him to become senior botanist in charge of systematic agrostology and custodian of the Section of Grasses, Division of Plants at the United States National Museum (USNM). Chase retired from the USDA in 1939, but continued her work as custodian of the USNM grass herbarium until her death in 1963. She was an Honorary Fellow of the Smithsonian Institution (1959) and Fellow of the Linnean Society of London (1961). Agnesia is named in her honour (a monotypic genus of herbaceous South American bamboo in the grass family).

Chase experienced discrimination based on her gender in the scientific field, for example, being excluded from expeditions to Panama in 1911 and 1912 because the expedition's benefactors feared the presence of women researchers would distract men. During World War I, Chase marched with Alice Paul and was jailed several times for her activities. In 1918, she was arrested at the Silent Sentinels rally picketing the White House; she refused bail and was held for 10 days, where she instigated a hunger-strike and was force-fed. The USDA accused her of "conduct unbecoming a government employee," but Hitchcock helped her keep her job. Chase was also an active member of the National Association for the Advancement of Colored People (NAACP).

See also: Distinguished authors of previous months.

Species of the month

Reindeer & Caribou

Rangifer tarandus

Caribou.jpg
Photo: Rangifer tarandus in Alaska, USA

Some facts about this mammal:

Body length: ♂ 180–214 cm, ♀ 162–205 cm.

Tail length: 14–20 cm.

Weight: ♂ 160–200 kg, ♀ 80–120 kg.

Habitat: Tundra and open taiga forest.

Distribution: Holarctic, mainly north of 58°N (locally south to 48°N), to the limits of land at 83°N.

Diet: Chiefly feeds on lichens, occasionally on grass and other herbs, and fungi.

Surviving number: Several million.

Conservation status: Least Concern; some subspecies threatened, one extinct.

First described: By Carolus Linnaeus in 1758, originally named as Cervus tarandus.

Rangifer tarandus is a keystone species in arctic and subarctic regions right round the far north of the globe, and the most abundant large mammal of this region. It is unusual among deer in that both sexes have antlers, thought to be an adaptation to winter snow, where the antlers are used to break through the snow crust to gain access to buried food. Wild herds still range widely, but the species is also farmed in many regions, notably in northern Scandinavia and parts of Russia and Mongolia. The farmed herds retain a large part of their natural behaviour, including migration routes, with the attendant herders travelling with their herds.

As expected for such a large range, the species is divided into many subspecies; 14 are currently accepted by Mammal Species of the World, but there may be more. Those in Europe and Asia are known in English as Reindeer, and those in North America as Caribou. Ecologically, the main differences within the species correlate more with habitat and latitude than continent, with two main groups, one in the arctic tundra, the other in subarctic taiga forests. Intergradation between the two is however extensive. The genus Rangifer itself is monotypic.

Evidence for a an additional type of Reindeer rudolphi, distinguished by a red nose, has often been claimed (and even illustrated), but hard scientific evidence for its existence is lacking. Reports typically associate it with sledge transport & goods delivery systems in late December.

See also: Species of previous months

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