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Downy Woodpecker
The downy woodpecker (''Dryobates pubescens'') is a species of woodpecker, the smallest in North America. Length ranges from . Downy woodpeckers primarily live in forested areas throughout the United States and Canada, with the exception of deserts in the southwest and the northern tundra. The bird nests in tree cavities and feeds primarily on insects, although it supplements its diet with seeds and berries. The downy woodpecker is very similar in appearance to the hairy woodpecker, although they are not closely related. Taxonomy The downy woodpecker was described and illustrated with a hand-coloured plate by the English naturalist Mark Catesby in his ''The Natural History of Carolina, Florida and the Bahama Islands'', which was published between 1729 and 1732. When in 1766 the Swedish naturalist Carl Linnaeus updated his ''Systema Naturae'' for the twelfth edition, he included the downy woodpecker, coined the binomial name ''Picus pubescens'' and cited Catesby's book. The specif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he continued to collect an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen(s). Article 67.1 A similar concept is used for suprageneric groups and called a type genus. In botanical nomenclature, these terms have no formal standing under the code of nomenclature, but are sometimes borrowed from zoological nomenclature. In botany, the type of a genus name is a specimen (or, rarely, an illustration) which is also the type of a species name. The species name that has that type can also be referred to as the type of the genus name. Names of genus and family ranks, the various subdivisions of those ranks, and some higher-rank names based on genus names, have such types. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Malherbe
Alfred Malherbe (14 July 1804 – 14 August 1865) was a French magistrate and amateur naturalist born in Mauritius to Pierre Marie François Malherbe and Rosalie Le Meusnier Molineuf. The family originally came from Metz. Alfred became the administrator of the Museum of Metz (being its director until 1863). He devoted his spare time to botany and zoology (especially ornithology). He conducted studies of birds of Algeria (describing numerous species) and Sicily. Malherbe was the author of Monographie des picidées' (1859–62, 4 vols.), the first global survey of the woodpeckers. He described and named Levaillant's woodpecker, after French ornithologist François Le Vaillant. In addition to ''Monographie des picidées'', he was the author of several other ornithological works: * ''Faune ornithologique de la Sicile : avec des observations sur l'habitat ou l'apparition des oiseaux de cette île'', etc. (1843) - Ornithological fauna of Sicily. * ''Description de dix espéces nouvel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John James Audubon
John James Audubon (born Jean-Jacques Rabin; April 26, 1785 – January 27, 1851) was an American self-trained artist, naturalist, and ornithologist. His combined interests in art and ornithology turned into a plan to make a complete pictorial record of all the bird species of North America. He was notable for his extensive studies documenting all types of American birds and for his detailed illustrations, which depicted the birds in their natural habitats. His major work, a color-plate book titled ''The Birds of America'' (1827–1839), is considered one of the finest ornithological works ever completed. Audubon is also known for identifying 25 new species. He is the eponym of the National Audubon Society, and his name adorns a large number of towns, neighborhoods, and streets across the United States. Dozens of scientific names first published by Audubon are still in use by the scientific community. Early life Audubon was born in Les Cayes in the French colony of Saint-Dom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Johnson Maynard
Charles Johnson Maynard (May 6, 1845 – October 15, 1929) was an American naturalist and ornithologist born in Newton, Massachusetts. He was a collector, a taxidermist, and an expert on the vocal organs of birds. In addition to birds, he also studied mollusks, moss, gravestones and insects. He lived in the house at 459 Crafts Street in Newton, Massachusetts, built in 1897 and included in the National Register of Historic Places in 1996 as the Charles Maynard House. The Charles Johnson Maynard Award is given out by the Newton Conservators, Inc. Biography Charles Johnson Maynard was born in Newton, Massachusetts on May 6, 1845 to Samuel Maynard and Emeline Sanger. He left school at the age of 16 to help out on the family farm. His interests led him to taxidermy, and the collecting and dealing in specimens of natural history. He founded his own company in Boston, Massachusetts called C. J. Maynard & Co. in 1865, which published books and sold naturalist supplies. Maynard eventuall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William John Swainson
William John Swainson FLS, FRS (8 October 1789 – 6 December 1855), was an English ornithologist, malacologist, conchologist, entomologist and artist. Life Swainson was born in Dover Place, St Mary Newington, London, the eldest son of John Timothy Swainson the Second (1756–1824), an original fellow of the Linnean Society. He was cousin of the amateur botanist Isaac Swainson.Etymologisches Worterbuch der botanischen Pflanzennamen by H. Genaust. Review by Paul A. Fryxell ''Taxon'', Vol. 38(2), 245–246 (1989). His father's family originated in Lancashire, and both grandfather and father held high posts in Her Majesty's Customs, the father becoming Collector at Liverpool. William, whose formal education was curtailed because of an impediment in his speech, joined the Liverpool Customs as a junior clerk at the age of 14."William Swainson F.R.S, F.L.S., Naturalist and Artist: Diaries 1808–1838: Sicily, Malta, Greece, Italy and Brazil." G .M. Swainson, Palmerston, NZ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Grinnell
Joseph Grinnell (February 27, 1877 – May 29, 1939) was an American field biologist and zoologist. He made extensive studies of the fauna of California, and is credited with introducing a method of recording precise field observations known as the Grinnell System. He served as the first director of the Museum of Vertebrate Zoology at the University of California, Berkeley from the museum's inception in 1908 until his death. He edited '' The Condor'', a publication of the Cooper Ornithological Club, from 1906 to 1939, and authored many articles for scientific journals and ornithological magazines. He wrote several books, among them ''The Distribution of the Birds of California'' and ''Animal Life in the Yosemite''. He also developed and popularized the concept of the niche. Early years Joseph Grinnell was born February 27, 1877, the first of three children by his father Fordyce Grinnell MD and mother Sarah Elizabeth Pratt. Grinnell's father worked as the physician for the K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subspecies
In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species have subspecies, but for those that do there must be at least two. Subspecies is abbreviated subsp. or ssp. and the singular and plural forms are the same ("the subspecies is" or "the subspecies are"). In zoology, under the International Code of Zoological Nomenclature, the subspecies is the only taxonomic rank below that of species that can receive a name. In botany and mycology, under the International Code of Nomenclature for algae, fungi, and plants, other infraspecific ranks, such as variety, may be named. In bacteriology and virology, under standard bacterial nomenclature and virus nomenclature, there are recommendations but not strict requirements for recognizing other important infraspecific ranks. A taxonomist decides whether ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecology
Ecology () is the study of the relationships between living organisms, including humans, and their physical environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere level. Ecology overlaps with the closely related sciences of biogeography, evolutionary biology, genetics, ethology, and natural history. Ecology is a branch of biology, and it is not synonymous with environmentalism. Among other things, ecology is the study of: * The abundance, biomass, and distribution of organisms in the context of the environment * Life processes, antifragility, interactions, and adaptations * The movement of materials and energy through living communities * The successional development of ecosystems * Cooperation, competition, and predation within and between species * Patterns of biodiversity and its effect on ecosystem processes Ecology has practical applications in conservation biology, wetland management, natural resource managemen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niche Partitioning
In ecology, niche differentiation (also known as niche segregation, niche separation and niche partitioning) refers to the process by which competing species use the environment differently in a way that helps them to coexist. The competitive exclusion principle states that if two species with identical niches (ecological roles) compete, then one will inevitably drive the other to extinction. This rule also states that two species cannot occupy the same exact niche in a habitat and coexist together, at least in a stable manner. When two species differentiate their niches, they tend to compete less strongly, and are thus more likely to coexist. Species can differentiate their niches in many ways, such as by consuming different foods, or using different areas of the environment. As an example of niche partitioning, several anole lizards in the Caribbean islands share common diets—mainly insects. They avoid competition by occupying different physical locations. Although these liz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Convergent Evolution
Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. Convergent evolution creates analogous structures that have similar form or function but were not present in the last common ancestor of those groups. The cladistic term for the same phenomenon is homoplasy. The recurrent evolution of flight is a classic example, as flying insects, birds, pterosaurs, and bats have independently evolved the useful capacity of flight. Functionally similar features that have arisen through convergent evolution are ''analogous'', whereas '' homologous'' structures or traits have a common origin but can have dissimilar functions. Bird, bat, and pterosaur wings are analogous structures, but their forelimbs are homologous, sharing an ancestral state despite serving different functions. The opposite of convergence is divergent evolution, where related species evolve different traits. Convergent evolution is similar to parallel evo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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