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Hispaniolan Palm Crow
The Hispaniolan palm crow (''Corvus palmarum'') is a relatively small corvid endemic to the Caribbean island of Hispaniola (in Haiti and the Dominican Republic) where it was formerly common but is now reduced in population. Taxonomy The Hispaniolan palm crow was formally described in 1835 under the binomial name ''Corvus palmarum'' by the German naturalist Duke Paul Wilhelm of Württemberg. The species is monotypic: no subspecies are recognised. This crow was formerly considered to be conspecific with the Cuban palm crow (''Corvus minutus''). Despite being sympatric with the white-necked crow (''Corvus leucognaphalus'') on Hispaniola, it appears to be more closely related to the fish crow (''C. ossifragus'') of the East Coast of the United States, as well as two smaller species, the Tamaulipas crow (''C. imparatus'') and Sinaloan crow (''C. sinaloae'') of Mexico, than the white-necked crow, which is more related to the Cuban crow (''Corvus nasicus'') and the Jamaican crow (''Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duke Paul Wilhelm Of Württemberg
Duke Friedrich ''Paul Wilhelm'' of Württemberg (; 25 June 1797, in Pokój, Opole Voivodeship, Bad Carlsruhe, Silesia, Kingdom of Prussia – 25 November 1860, in Bad Mergentheim, Mergentheim, Kingdom of Württemberg) was a member of the List of rulers of Württemberg, House of Württemberg and a Duke of Württemberg. Paul Wilhelm was a German Natural history, naturalist and explorer, who in the early 19th century, undertook several expeditions in North America, North Africa, and Australia. In 1829, he discovered the sources of the Missouri River. Family Paul Wilhelm was the fifth and youngest child of Eugene Frederick Henry, Duke of Württemberg, Duke Eugen of Württemberg and his wife Princess Louise of Stolberg-Gedern (1764-1834), Princess Luise of Stolberg-Gedern. Through his father, Paul Wilhelm was a grandson of Frederick II Eugene, Duke of Württemberg and his wife Friederike Dorothea of Brandenburg-Schwedt. He was a nephew of Frederick of Württemberg, the first Kingdom o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamaulipas Crow
The Tamaulipas crow (''Corvus imparatus'') is a crow found in northeastern Mexico and southern Texas. Description It is a relatively small and sleek looking crow, in length. It has very glossy dark, bluish plumage, which appears soft and silky. The bill is quite slender and black, as are the legs and feet. The Chihuahuan raven, a much larger and very different bird, is the only crow it commonly occurs alongside. Taxonomy The Sinaloa crow (''Corvus sinaloae'') appears to be genetically extremely close to this bird and can be considered the western form of it though the voice is quite different, indeed a third species, the fish crow (''Corvus ossifragus'') of the southeastern United States appears to be very closely related to them also and the three may be considered a superspecies. Distribution and habitat Occurring in a relatively small area in northeastern Mexico, it inhabits near desert scrub and bushland and includes farms, small towns and villages in its range. It also oc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of The Dominican Republic
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 common ostrich. There are over 11,000 living species and they are split into 44 orders. More than half are passerine or "perching" birds. Birds have wings 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 furthe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Duke Paul Wilhelm Of Württemberg
In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion, especially in the context of rank-based (" Linnaean") nomenclature (much less so under phylogenetic nomenclature). If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were presumably set forth in prehistoric times by hunter-gatherers, as suggested by the fairly sophisticated folk taxonomies. Much later, Aristotle, and later still ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Described In 1835
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 common ostrich. There are over 11,000 living species and they are split into 44 orders. More than half are passerine or "perching" birds. Birds have wings 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 furthe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Enriquillo
Lake Enriquillo () is a hypersaline lake in the Dominican Republic located in the southwestern region of the country. Its waters are shared between the provinces of Baoruco Province, Bahoruco and Independencia Province, Independencia, the latter of which borders Haiti. Lake Enriquillo is the largest lake in both the Dominican Republic and Hispaniola, as well as the entire Caribbean. It is also the lowest point for an island country. Hydrology Lake Enriquillo covers an area of , and is the lowest point for an island country, falling below sea level. Its drainage basin includes ten minor river systems. The rivers that rise in the Neiba Mountains to the north (lower center and lower right of the image) are perennial. Those rivers that rise in the Baoruco Province, Baoruco Mountains to the south are intermittent. Lake Enriquillo has no outlet, making it an example of an endorheic lake. The lake's water level varies because of a combination of storm-driven precipitation events and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hispaniolan Pine Forests
The Hispaniolan pine forests are a subtropical coniferous forest ecoregion found on the Caribbean island of Hispaniola, which is shared by Haiti and the Dominican Republic. The ecoregion covers , or about 15% of the island. It lies at elevations greater than in the mountains of Hispaniola, extending from the Cordillera Central of the Dominican Republic and into the Massif du Nord of Haiti. It is surrounded at lower elevations by the Hispaniolan moist forests and Hispaniolan dry forests ecoregions, which cover the remainder of the island. Annual rainfall is . Flora The natural vegetation of the region consists primarily of stands of pino criollo (''Pinus occidentalis''). Pines are mixed with other conifers, including sabina ('' Juniperus gracilior'') and '' Podocarpus aristulatus'' (syn. ''P. buchii''). Below , pine forests are found on lateritic soils and are interspersed with areas of wet montane forest. Important broad-leaved species are '' Garrya fadyenii'' and '' Vacci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinaloa Crow
The Sinaloa crow (''Corvus sinaloae'') is a crow native to western Mexico. Description Visually, it is nearly identical to and the same length (34–38 cm) as the Tamaulipas crow (''Corvus imparatus''). It has the same purple-glossed, silky, black plumage with a black bill, legs, and feet. The two species differ markedly in voice. Distribution and habitat It occurs on the Pacific slope from southern Sonora south to Manzanillo. The crow inhabits coastal regions where it forages on the seashore, semi-desert, open woodlands, river banks and hills up to 300 metres or more. It is very common around coastal towns and villages. Diet Food is taken both on the ground and in trees. On the seashore it can be found turning over objects to find its food and it will take a wide range of invertebrates such as small shellfish, crabs, and insects. Fruits of many types are also taken and eggs and nestlings are also on the menu when opportunity arises. Breeding Often, this bird will nest in a th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Crow
The fish crow (''Corvus ossifragus'') is a species of Corvus, crow associated with wetland habitats in the eastern and southeastern United States. Taxonomy and etymology The fish crow was given its Binomial nomenclature, binomial name by the Scottish Ornithology, ornithologist Alexander Wilson (ornithologist), Alexander Wilson in 1812, in the fifth volume of his ''American Ornithology''. The binomial is from Latin; ''Corvus'' means "raven", while ''ossifragus'' means "bone-breaker". It is derived from ''os'' or ''ossis'', meaning "bone", and ''frangere'', meaning "to break". The English-language common name ''fish crow'' also derives from Wilson, who ascribed the name to the crow's aquatic diet, as described to him by local fishermen. He distinguished the fish crow from John Bartram's ''great seaside crow'' by the former's diminutive size when compared to the American crow. The fish crow's taxonomic relation to other species of the ''Corvus'' genus is still poorly understood, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuba
Cuba, officially the Republic of Cuba, is an island country, comprising the island of Cuba (largest island), Isla de la Juventud, and List of islands of Cuba, 4,195 islands, islets and cays surrounding the main island. It is located where the northern Caribbean Sea, Gulf of Mexico, and Atlantic Ocean meet. Cuba is located east of the Yucatán Peninsula (Mexico), south of both Florida and the Bahamas, west of Hispaniola (Haiti/Dominican Republic), and north of Jamaica and the Cayman Islands. Havana is the largest city and capital. Cuba is the List of countries and dependencies by population, third-most populous country in the Caribbean after Haiti and the Dominican Republic, with about 10 million inhabitants. It is the largest country in the Caribbean by area. The territory that is now Cuba was inhabited as early as the 4th millennium BC, with the Guanahatabey and Taino, Taíno peoples inhabiting the area at the time of Spanish colonization of the Americas, Spanish colonization ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niche Differentiation
In ecology, a niche is the match of a species to a specific environmental condition. Three variants of ecological niche are described by It describes how an organism or population responds to the distribution of resources and competitors (for example, by growing when resources are abundant, and when predators, parasites and pathogens are scarce) and how it in turn alters those same factors (for example, limiting access to resources by other organisms, acting as a food source for predators and a consumer of prey). "The type and number of variables comprising the dimensions of an environmental niche vary from one species to another ndthe relative importance of particular environmental variables for a species may vary according to the geographic and biotic contexts". See also Chapter 2: Concepts of niches, pp. 7 ''ff'' A Grinnellian niche is determined by the habitat in which a species lives and its accompanying behavioral adaptations. An Eltonian niche emphasizes that a specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jamaican Crow
The Jamaican crow (''Corvus jamaicensis'') is a comparatively small corvid (35–38 cm in length). It shares several key morphological features with two other West Indian species, the Cuban crow (''Corvus nasicus'') and the white-necked crow (''Corvus leucognaphalus'') of Hispaniola, which are very closely related to it. Taxonomy The Jamaican crow, under the name "chattering crow", was described by the English naturalists John Ray in 1713 and Hans Sloane in 1725. The Irish physician Patrick Browne used the name "gabbling crow" for the species in 1756. In France the naturalists Mathurin Jacques Brisson in 1760 and Comte de Buffon both used the name "La corneille de la Jamaique". A binomial name was not introduced until 1788 when the German naturalist Johann Friedrich Gmelin revised and expanded Carl Linnaeus's ''Systema Naturae'' and coined the binomial name ''Corvus jamaicensis''. The species is monotypic: no subspecies are recognised. Description The overall appearance i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
