| Sichuan jay | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Corvidae |
| Genus: | Perisoreus |
| Species: | P. internigrans |
| Binomial name | |
| Perisoreus internigrans | |
The Sichuan jay (Perisoreus internigrans) is a species of bird in the family Corvidae. It is endemic to China.
It is one of three members of the genus Perisoreus , the others being the Siberian jay, P. infaustus, found from Norway to eastern Russia, and the Canada jay, P. canadensis, restricted to the boreal forest and western montane regions of North America. All three species store food and live year-round on permanent territories in coniferous forests.
Its natural habitat is subtropical or tropical moist montane forests. It is threatened by habitat loss.
They are mostly situated in isolated fragments of highly elevated coniferous forests on the Qinghai-Tibet plateau of west-central China. These locations are generally isolated, because of the mountainous terrain of the region. However, it is predicted that both of the extent of suitable habitat and the suitability of that habitat will decrease substantially under climate change. Climate change might force these birds to migrate northward and upward, where areas remaining for such compensatory extension are quite restricted. In addition, acceptable habitat will become much more disconnected, which may increase the negative effects of climate change indirectly by slowing, or halting gene flow and accelerating the rate of extinction of fragmented local populations.
A cloud forest, also called a water forest, primas forest, or tropical montane cloud forest, is a generally tropical or subtropical, evergreen, montane, moist forest characterized by a persistent, frequent or seasonal low-level cloud cover, usually at the canopy level, formally described in the International Cloud Atlas (2017) as silvagenitus. Cloud forests often exhibit an abundance of mosses covering the ground and vegetation, in which case they are also referred to as mossy forests. Mossy forests usually develop on the saddles of mountains, where moisture introduced by settling clouds is more effectively retained.
The genus Perisoreus is a very small genus of jays from the Boreal regions of North America and Eurasia from Scandinavia to the Asian seaboard. An isolated species also occurs in north-western Sichuan of China. They belong to the Passerine order of birds in the family Corvidae. Species of Perisoreus jays are most closely related to the genus Cyanopica.
The Canada jay, also known as the gray jay, grey jay, camp robber, or whisky jack, is a passerine bird of the family Corvidae. It is found in boreal forests of North America north to the tree line, and in the Rocky Mountains subalpine zone south to New Mexico and Arizona. A fairly large songbird, the Canada jay has pale grey underparts, darker grey upperparts, and a grey-white head with a darker grey nape. It is one of three members of the genus Perisoreus, a genus more closely related to the magpie genus Cyanopica than to other birds known as jays. The Canada jay itself has nine recognized subspecies.
Bicknell's thrush is a medium-sized thrush, at 17.5 cm (6.9 in) and 28 g (0.99 oz). One of North America's rarest and most localized songbirds, it breeds on coniferous mountain tops and disturbed habitats of northeastern North America. While very similar in appearance and vocalization to the gray-cheeked thrush, the two species, with two completely different breeding ranges, differ slightly in their morphology and vocalizations. It was named after Eugene Bicknell, an American amateur ornithologist, who made the first scientific discovery of the species on Slide Mountain in the Catskills in the late 19th century. John Burroughs, in his essay, "The Heart of the Southern Catskills" (1886), writes effusively about the voice of Bicknell's thrush heard near the summit on his climbs of Slide Mountain, and how on his stays on Slide saw them nowhere else but "about the summit", and saw no other thrush but Bicknell's.
The Algerian nuthatch or Kabyle nuthatch, is a species of bird in the nuthatch family Sittidae. It is a medium-sized nuthatch, measuring between 11.5 cm (4.5 in) and 12.5 cm (4.9 in). The upperparts are bluish gray. The male can be distinguished from the female by the black front of its crown. The species is sedentary; it feeds on arthropods in summer and on seeds in winter. The breeding season takes place around May–June. The nest, built in a hole of tree, shelters a laying of three or four eggs, brooded by the female. The chicks are fed by both parents.
The Siberian jay is a small jay with a widespread distribution within the coniferous forests in North Eurasia. It has grey-brown plumage with a darker brown crown and a paler throat. It is rusty-red in a panel near the wing-bend, on the undertail coverts and on the sides of the tail. The sexes are similar. Although its habitat is being fragmented, it is a common bird with a very wide range so the International Union for Conservation of Nature has assessed its conservation status as being of "least concern".
The helmet vanga is a distinctive-looking bird of the vanga family, Vangidae, and is classified in its own genus, Euryceros. It is mainly blue-black, with rufous wings and a huge arched blue bill. It is restricted to lowland and lower montane rainforests of northeastern Madagascar. Its diet is composed of invertebrates, predominantly insects. The species is threatened by habitat loss.
Harris's sparrow is a large sparrow. Their breeding habitat is the north part of central Canada, making it Canada's only endemic breeding bird. In the winter they migrate to the Great Plains states of the United States, from southern South Dakota to central Texas. The common name of this species commemorates the American amateur ornithologist Edward Harris (1799–1863).
The Chinese grouse, also known as Severtzov's grouse or the black-breasted hazel grouse, is a grouse species closely related to the hazel grouse.
The Hainan partridge is a species of bird in the family Phasianidae. It is endemic to Hainan Island, China. Its natural habitats are primary evergreen forests. It is threatened by habitat loss and has been assessed as a vulnerable species.
The Sichuan partridge is a bird species in the family Phasianidae. It is found only in China where it is classified as a nationally protected animal. Its natural habitat is temperate forest. It is threatened by habitat loss.
Bannerman's turaco is a species of bird in the family Musophagidae. It is endemic to Cameroon. In French it is known as touraco de Bannerman or touraco doré. Its scientific and common names honour the ornithologist David Armitage Bannerman. Its natural habitat is subtropical or tropical moist montane forests. It is threatened by habitat destruction and the International Union for Conservation of Nature has listed it as an "endangered species".
The Marquesan monarch is a species of bird in the family Monarchidae. It is endemic to French Polynesia. Its natural habitats are subtropical or tropical dry forest, subtropical or tropical moist lowland forest, and subtropical or tropical moist montane forest. It is threatened by habitat loss.
The green shrike-babbler is a bird species that was earlier placed in the family Timaliidae. The species is now considered to be an Asian offshoot of the American vireos and belongs in the family Vireonidae.
The flora of China consists of a diverse range of plant species including over 39,000 vascular plants, 27,000 species of fungi and 3000 species of bryophytes. More than 30,000 plant species are native to China, representing nearly one-eighth of the world's total plant species, including thousands found nowhere else on Earth. China's land, extending over 9.6 million km, contains a variety of ecosystems and climates for plants to grow in. Some of the main climates include shores, tropical and subtropical forests, deserts, elevated plateaus and mountains. The events of the continental drift and early Paleozoic Caledonian movement also play a part in creating climatic and geographical diversity resulting in high levels of endemic vascular flora. These landscapes provide different ecosystems and climates for plants to grow in, creating a wide variety of different flora spanning over not just China, but different parts of the world.
The Colorado Rockies forests is a temperate coniferous forest ecoregion of the United States.
Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial factor in shaping plant community, biodiversity, metabolic processes and ecosystem dynamics for montane ecosystems. Dense montane forests are common at moderate elevations, due to moderate temperatures and high rainfall. At higher elevations, the climate is harsher, with lower temperatures and higher winds, preventing the growth of trees and causing the plant community to transition to montane grasslands and shrublands or alpine tundra. Due to the unique climate conditions of montane ecosystems, they contain increased numbers of endemic species. Montane ecosystems also exhibit variation in ecosystem services, which include carbon storage and water supply.
The Venezuelan Andes montane forests (NT0175) is an ecoregion in the northern arm of the Andes in Venezuela. It contains montane and cloud forests, reaching up to the high-level Cordillera de Merida páramo high moor ecoregion. The forests are home to many endemic species of flora and fauna. Their lower levels are threatened by migrant farmers, who clear patches of forest to grow crops, then move on.
The Cauca Valley montane forests (NT0109) is an ecoregion in western Colombia. It covers the sides of the Cauca Valley, which runs from south to north between the Central and Western Ranges (cordilleras) of the Colombian Andes. The ecoregion is home to very diverse fauna and flora, due in part to its varied elevations and climates, in part to its position near the isthmus of Panama, the route along which North American species invaded South America and then diversified as they moved to the upper parts of the Andes. Little of the original habitat remains at lower levels, but higher up there are sizeable blocks of forest, some of which are protected.
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