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Botteri's Sparrow
Botteri's sparrow (''Peucaea botterii'') is a medium-sized sparrow. This passerine bird is primarily found in Mexico, with a breeding range that extends into the southeastern tip of the U.S. state of Arizona, and a small non-migratory population in the Rio Grande Valley of southern Texas, which is threatened by loss of habitat. It was not found in Arizona between the 1890s and the mid-20th century due to excessive grazing of livestock; now it is locally common in its Arizona range due to recovery of vegetation. Juvenile birds apparently need dense vegetation to hide in during fledging; the uncommon native sacaton grass ''Sporobolus wrightii'' is preferred, but stands of introduced non-native Lehmann lovegrass ('' Eragrostis lehmanniana'') and Boer lovegrass ( ''E. curvula'' var. ''conferta'') are also successfully utilized, though at lower population densities.Jones, Zach F. & Bock, Carl E. (2005): The Botteri's sparrow and exotic Arizona grasslands: an ecological trap or ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philip Sclater
Philip Lutley Sclater (4 November 1829 – 27 June 1913) was an England, English lawyer and zoologist. In zoology, he was an expert ornithologist, and identified the main zoogeographic regions of the world. He was Secretary of the Zoological Society of London for 42 years, from 1860–1902. Early life Sclater was born at Tangier Park, in Wootton St Lawrence, Hampshire, where his father William Lutley Sclater had a country house. George Sclater-Booth, 1st Baron Basing was Philip's elder brother. Philip grew up at Hoddington House where he took an early interest in birds. He was educated in school at Twyford and at thirteen went to Winchester College and later Corpus Christi College, Oxford where he studied scientific ornithology under Hugh Edwin Strickland. In 1851 he began to study law and was admitted a Fellow of Corpus Christi College. In 1856 he travelled to America and visited Lake Superior and the upper St. Croix River (Wisconsin–Minnesota), St. Croix River, cano ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Introduced Species
An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived there by human activity, directly or indirectly, and either deliberately or accidentally. Non-native species can have various effects on the local ecosystem. Introduced species that become established and spread beyond the place of introduction are considered naturalized. The process of human-caused introduction is distinguished from biological colonization, in which species spread to new areas through "natural" (non-human) means such as storms and rafting. The Latin expression neobiota captures the characteristic that these species are ''new'' biota to their environment in terms of established biological network (e.g. food web) relationships. Neobiota can further be divided into neozoa (also: neozoons, sing. neozoon, i.e. animals) and neop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Central America
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Mexico
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of The Rio Grande Valleys
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. Birds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Native Birds Of The Southwestern United States
Native may refer to: People * Jus soli, citizenship by right of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Native Americans (other) In arts and entertainment * Native (band), a French R&B band * Native (comics), a character in the X-Men comics universe * ''Native'' (album), a 2013 album by OneRepublic * ''Native'' (2016 film), a British science fiction film * '' The Native'', a Nigerian music magazine In science * Native (computing), software or data formats supported by a certain system * Native language, the language(s) a person has learned from birth * Native metal, any metal that is found in its metallic form, either pure or as an alloy, in nature * Native species In biogeography, a native species is indigenous to a given region or ecosystem if its presence in that region is the result of only local natural evolution (though often popularised as "with no human intervention ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peucaea
''Peucaea'' is a genus of American sparrows. The species in this genus used to be included in the genus '' Aimophila''. Taxonomy and species A molecular phylogenetic study published in 2009 found that the genus '' Aimophila'' was polyphyletic. In the resulting reorganization to create monophyletic genera, eight species were moved from '' Aimophila'' to the resurrected genus ''Peucaea''. ''Peucaea'' had been introduced by the Franco-American ornithologist John James Audubon in 1839. The genus name is from the Ancient Greek ''peukē'' meaning "pine-tree". The type species was designated by English zoologist George Robert Gray in 1841 as ''Fringilla bachmani'', a taxon now considered to be a subspecies of Bachman's sparrow with the trinomial name ''Peucaea aestivalis bachmani''. ''Peucaea'' is the sister genus to ''Ammodramus'' within the family Passerellidae. The genus contains the following 8 species: * Rufous-winged sparrow, ''Peucaea carpalis'' * Cinnamon-tailed sparrow, ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matteo Botteri
Matteo Botteri, (1808 – 1877) also known as Matija Botteri, was a botanist, ornithologist, and collector. Biography Botteri was born on the island Hvar to an Italian family. He began his early career in Dalmatia and nearby areas in the Ottoman Empire with flora and fauna, primarily ichthyologist investigations, while headquartered in Hvar. He, along with his contemporary , sent materials to Georg von Frauenfeld for his studies. He also sent material to Friedrich Kützing. In 1854, he travelled to Mexico to collect plants on behalf of the Royal Horticultural Society. He settled in Orizaba, where he founded a museum and became professor of languages and natural history at Orizaba College. Philip Sclater commemorated him in the name of the Botteri's sparrow, which Botteri collected as well as other birds in Veracruz Veracruz (), formally Veracruz de Ignacio de la Llave (), officially the Free and Sovereign State of Veracruz de Ignacio de la Llave ( es, Estado Libre y So ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Condor (journal)
''Ornithological Applications'', formerly ''The Condor'' and ''The Condor: Ornithological Applications'', is a peer-reviewed quarterly scientific journal covering ornithology. It is an official journal of the American Ornithological Society. History The journal was first published in 1899 as the ''Bulletin of the Cooper Ornithological Club'' by a group of biologists in California. The journal's scope was regional, covering the western United States. In 1900, the name was changed to ''The Condor''. In 1947, the journal's subtitle was shortened to ''The Condor, Journal of the Cooper Ornithological Club''. Editors-in-Chief: 1899-1902: Chester Barlow; 1902-1905: Walter Kenrick Fisher, Walter K. Fisher with Joseph Grinnell as Associate Editor; 1906-1939 Joseph Grinnell; 1940-1966: Alden H. Miller Berkeley, CA; 1966-1968: James R. King Washington State; 1969-1973: Ralph J. Raitt New Mexico State University; 1973-1974: Francis S. L. Williamson SI Chesapeake Bay Center for Environment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Population Densities
Population density (in agriculture: standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geographical term.Matt RosenberPopulation Density Geography.about.com. March 2, 2011. Retrieved on December 10, 2011. In simple terms, population density refers to the number of people living in an area per square kilometre, or other unit of land area. Biological population densities Population density is population divided by total land area, sometimes including seas and oceans, as appropriate. Low densities may cause an extinction vortex and further reduce fertility. This is called the Allee effect after the scientist who identified it. Examples of the causes of reduced fertility in low population densities are * Increased problems with locating sexual mates * Increased inbreeding Human densities Population density is the number of people per unit of area, usua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eragrostis Curvula
''Eragrostis curvula'' is a species of grass known by the common name weeping lovegrass. Other common names include Boer lovegrass, curved lovegrass, Catalina lovegrass, and African lovegrass. It is native to southern Africa. It is an introduced species on other continents.Gucker, Corey L. (2009)''Eragrostis curvula''.In: Fire Effects Information System, nline U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory. Retrieved 12-22-2011. Description ''Eragrostis curvula'' is usually a long-lived perennial grass, but it is sometimes an annual plant. It is variable in appearance, and there are many different natural and cultivated forms. In general, it forms tufts of stems up to tall. The tufts may reach a diameter of . The grass grows from a thick root network. Plants have been noted to have roots penetrating over deep in the soil and laterally. The roots can grow per day. The first root to grow into the soil from a seedli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eragrostis Lehmanniana
''Eragrostis lehmanniana'' is a species of grass known by the common name Lehmann lovegrass. It is native to southern Africa. It is present elsewhere as an introduced species. It is well known as an invasive weed in some areas, such as Arizona in the United States.Uchytil, Ronald J. (1992)''Eragrostis lehmanniana''.In: Fire Effects Information System, nline U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory. Retrieved 12-22-2011. This grass produces loose, open clumps of stems up to long,''Eragrostis lehmanniana''. Grass Manual Treatment. Retrieved 12-22-2011. with some stems growing erect and some lying across the ground and rooting where nodes come in contact with the substrate. The leaves are up to long. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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