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Andrew Jackson Grayson
Andrew Jackson Grayson (1819–1869) was an American ornithologist and artist. Grayson was the author of ''Birds of the Pacific Slope'' (1853–69), which he considered to be a completion of John James Audubon's ''Birds of America''. Early life Grayson was born August 20, 1819, in the northwest corner of Louisiana, on the Ouachita River, where his father had a cotton plantation. At his local school, the teachers were poorly trained, so later on, his father sent him to St. Mary's College in St. Louis, Missouri. There, they discouraged him from studying art. Moving west After his father died, Mr. Grayson used his inherited funds to invest in a small store. As he ignored it for the most part it went out of business fairly quickly. After meeting frontiersmen in his college years, he developed an insatiable urge to move west. After he married his wife, Frances J. Timmons, on July 21, 1842, they decided to move to California. They had a child in 1845, Edward B. Grayson, and moved to St ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elf Owl
The elf owl (''Micrathene whitneyi'') is a small grayish-brown owl about the size of a sparrow found in the Southwestern United States, central Mexico, and the Baja California peninsula. It has pale yellow eyes highlighted by thin white "eyebrows" and a gray bill with a horn-colored tip. The elf owl frequently inhabits woodpecker holes in saguaro cacti; it also nests in natural tree cavities. It is nocturnal and feeds primarily on insects. Taxonomy The elf owl was formally described in 1861 by the American naturalist James Graham Cooper from a specimen collected near Fort Mohave in Arizona. He coined the binomial name ''Athene whitneyi'', choosing the specific epithet to honour the geologist Josiah Whitney. The owl is now the only species placed in the genus ''Micrathene'' that was introduced in 1866 specifically for the elf owl by American ornithologist Elliott Coues. The genus name combines the Ancient Greek ''mikros'' meaning "small" and the genus name ''Athene'' that had bee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Bancroft Library
The Bancroft Library in the center of the campus of the University of California, Berkeley, is the university's primary special-collections library. It was acquired from its founder, Hubert Howe Bancroft, in 1905, with the proviso that it retain the name Bancroft Library in perpetuity. The collection at that time consisted of 50,000 volumes of materials on the history of California and the North American West. It is now the largest such collection in the world. The building the library is located in, the Doe Annex, was completed in 1950. Inception The Bancroft Library's inception dates back to 1859, when William H. Knight, who was then in Bancroft's service as editor of statistical works relative to the Pacific coast, was requested to clear the shelves around Bancroft's desk to receive every book in the store having reference to this country. Looking through his stock he was agreeably surprised to find some 50 or 75 volumes. There was no fixed purpose at this time to collect a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sylvilagus Graysoni
The Tres Marias cottontail or Tres Marias rabbit (''Sylvilagus graysoni'') is a species of mammal in the family Leporidae. Distribution and habitat It is endemic to the Tres Marias Islands, part of the Mexican state of Nayarit. The rabbit is abundantly found in both the Madre and Magdalena islands but only has some occurrences in the Cleofa island. Its natural habitat is subtropical or tropical dry forests. Conservation It is threatened by habitat loss. Ecology The rabbit only has three predators - the Tres Marias raccoon (''Procyon lotor insularis''), a subspecies of the common raccoon The raccoon ( or , ''Procyon lotor''), sometimes called the common raccoon to distinguish it from other species, is a mammal native to North America. It is the largest of the procyonid family, having a body length of , and a body weight of . ..., and two birds of prey: the red-tailed hawk (''Buteo jamaicensis'') and the crested caracara (''Caracara plancus''). References Sy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caddisfly
The caddisflies, or order Trichoptera, are a group of insects with aquatic larvae and terrestrial adults. There are approximately 14,500 described species, most of which can be divided into the suborders Integripalpia and Annulipalpia on the basis of the adult mouthparts. Integripalpian larvae construct a portable casing to protect themselves as they move around looking for food, while Annulipalpian larvae make themselves a fixed retreat in which they remain, waiting for food to come to them. The affinities of the small third suborder Spicipalpia are unclear, and molecular analysis suggests it may not be monophyletic. Also called sedge-flies or rail-flies, the adults are small moth-like insects with two pairs of hairy membranous wings. They are closely related to the Lepidoptera (moths and butterflies) which have scales on their wings; the two orders together form the superorder Amphiesmenoptera. The aquatic larvae are found in a wide variety of habitats such as streams, river ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroptilidae
The Hydroptilidae are a large family of caddisflies (Trichoptera) with a worldwide distribution. They are commonly known as microcaddisflies or purse-case caddisflies, in reference to two characteristic traits of this family: Hydroptilidae are much smaller than other caddisflies, rarely exceeding in length. Their larvae do not build a protective case until the final instar of their growth. At that time however, they build a typically Purse-shaped case, either portable or stuck to the substrate, in which the larva finishes growth and pupates. Systematics and taxonomy Their systematic placement among the caddisflies is still disputed. They are traditionally placed in the suborder Spicipalpia, which do not seem to be a natural monophyletic group, but rather an evolutionary grade of moderately advanced caddisflies. Some authors downrank the Spicipalpia to a superfamily of the more basal Annulipalpia and call them Rhyacophiloidea (which otherwise refers to a subfamily of subo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ochrotrichia Graysoni
''Ochrotrichia'' is a large genus of microcaddisflies. All are Nearctic or Neotropical in distribution apart from '' Ochrotrichia verbekei'', recorded from the Democratic Republic of the Congo. Species *'' Ochrotrichia affinis'' *'' Ochrotrichia alargada'' *'' Ochrotrichia aldama'' *'' Ochrotrichia alexanderi'' *'' Ochrotrichia alsea'' *'' Ochrotrichia anisca'' *''Ochrotrichia anomala'' *'' Ochrotrichia amorfa'' *'' Ochrotrichia apalachicola'' *'' Ochrotrichia argentea'' *''Ochrotrichia arizonica'' *'' Ochrotrichia arranca'' *'' Ochrotrichia arriba'' *'' Ochrotrichia arva'' *''Ochrotrichia assita'' *''Ochrotrichia attenuata'' *''Ochrotrichia avis'' *''Ochrotrichia ayaya'' *''Ochrotrichia bicaudata'' *''Ochrotrichia bipartita'' *''Ochrotrichia blanca'' *''Ochrotrichia boquillas'' *''Ochrotrichia bractea'' *''Ochrotrichia brayi'' *''Ochrotrichia brodzinskyi'' *'' Ochrotrichia buccata'' *'' Ochrotrichia burdicki'' *''Ochrotrichia cachonera'' *'' Ochrotrichia caimita'' *'' Ochrot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crayfish
Crayfish are freshwater crustaceans belonging to the clade Astacidea, which also contains lobsters. In some locations, they are also known as crawfish, craydids, crawdaddies, crawdads, freshwater lobsters, mountain lobsters, rock lobsters, mudbugs, baybugs or yabbies. Taxonomically, they are members of the superfamilies Astacoidea and Parastacoidea. They breathe through feather-like gills. Some species are found in brooks and streams, where fresh water is running, while others thrive in swamps, ditches, and paddy fields. Most crayfish cannot tolerate polluted water, although some species, such as ''Procambarus clarkii'', are hardier. Crayfish feed on animals and plants, either living or decomposing, and detritus. The term "crayfish" is applied to saltwater species in some countries. Terminology The name "crayfish" comes from the Old French word ' (Modern French '). The word has been modified to "crayfish" by association with "fish" (folk etymology). The largely American ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambaridae
The Cambaridae are the largest of the four families of freshwater crayfish, with over 400 Species. Most of the species in the family are native the United States east of the Great Divide and Mexico, but fewer range north to Canada, and south to Guatemala and Honduras. Three live on the island of Cuba. The species in the genus ''Cambaroides'' are the only found outside North America, as they are restricted to eastern Asia. A few species, including the invasive ''Procambarus clarkii'' and '' Faxonius rusticus'', have been introduced to regions far outside their native range (both in North America and other continents). Conversely, many species have tiny ranges and are seriously threatened; a few are already extinct. A 2006 molecular study suggested that the family Cambaridae may be paraphyletic, with the family Astacidae Astacidae is a family of freshwater crayfish native to Europe and western North America. The family is made up of four extant (living) genera: The genera '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambarus Graysoni
''Cambarus'' is a large and diverse genus of crayfish from the United States and Canada. The adults range in size from about 5 centimeters (2 in) up to approximately 15 centimeters (6 in). Description The genus ''Cambarus'' is the second largest freshwater crayfish genus inhabiting the Northern Hemisphere, with only sixty fewer species than the genus ''Procambarus''. Though ''Cambarus'' are varied across species, the two terminal elements that make up the male form I gonopod form ninety degree angles with the central appendage, allowing for their identification. Unlike the genus ''Procambarus'' whose first pleopod tends to have three processes at the tip, ''Cambarus'' has only one or two. ''Cambarus'' reach 17–26 mm carapace lengths in their first year, while average adult carapace length ranges from 55–62 mm. As a genus containing nearly 100 species, ''Cambarus's'' coloration is variable. ''Cambarus bartonii'' is dark brown, while species like ''Cambar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct In The Wild
A species that is extinct in the wild (EW) is one that has been categorized by the International Union for Conservation of Nature as known only by living members kept in captivity or as a naturalized population outside its historic range due to massive habitat loss. Examples Examples of species and subspecies that are extinct in the wild include: *Alagoas curassow (last unconfirmed sighting reported in the late 1980s, listed extinct in the wild since 1994) *Beloribitsa * Cachorrito de charco palmal (last seen in 1994, listed extinct in the wild since 1996) * Christmas Island blue-tailed skink (listed extinct in the wild since 2014) *Dabry's sturgeon (listed extinct in the wild since 2022) * Escarpment cycad (listed extinct in the wild since 2006) *Franklinia (last seen in 1803, listed extinct in the wild since 1998) *Golden skiffia (listed extinct in the wild since 1996) *Guam kingfisher (listed extinct in the wild since 1986) *Hawaiian crow or ʻalalā (last seen in 2002, li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
