An animal-based Eurasia geographical. It covers the whole of Europe, Africa and the Arab north of the Tropic of Cancer, the Himalayas and north of the Qinling Mountains of Asia.
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Geographical location and natural conditions
Palaearctic is the largest geographical area of an animal. Palaearctic vast area, diverse ecological conditions, most of the area used to belong to Laurasia, and the old part of tropical origin community bordering the ancient Gondwana land, now considered the northern boundary of the ancient world and the old tropical transition areas. As the area's largest and very diverse natural environment, animals, flora, and now the range of Palaearctic was in prehistoric times, the evolution of many animal groups center, but in many areas of greater influence in the glacial period, and currently has a large area of cold and arid areas, relatively poor natural conditions, animal species is relatively poor. Jeonbuk area community almost equal the sum of the other sectors, but the species has only a small part of the world.
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Ecological Environment
In contrast, the eastern Palaearctic little influence by the Ice Age, and many of the Oriental species boundaries is not obvious that a considerable exchange of species, so species rich than the western. In addition to the Palaearctic and the Oriental world and the old world tropics have some links, and the new northern boundary of the particularly close relationship, both weather conditions similar to the bridge in the historical period, there have been connected, so the common types and the corresponding type of very more often into the whole north, both the similarity in the most northern region, on behalf of northern temperate and boreal fauna, species not rich, cold-blooded animal species, especially invertebrates, especially small and relatively constant temperature animal more, and rich in large type. The northern boundary of the whole animal behavior was significantly affected by the seasons, birds, a considerable proportion of migratory birds, amphibians, reptiles and a large number of lower animals have the phenomenon of hibernation, many mammals have the phenomenon of hibernation or winter storage of food habits have .
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Species distribution
1, the mammalian species distribution: Palaearctic heads with cloven-hoofed bovine and deer dominated the two major families, with some large species. Bovidae and Cervidae of the European bison moose is the largest body Palaearctic animals, including moose and the new northern boundary of the ancient northern boundary of total, while the European bison and the new northern boundary of the American bison are closely related. Palaearctic mountains inland plateau region is the bovine subfamily sheep distribution center, rich in some of the wild goats are good at climbing. There are some inland steppe regions antelope subfamily members, but nowhere near the old tropical species rich community. Deer deer deer subfamilies and subfamily are represented empty tooth, they are the main forest ungulates in East Asia there appears the original members of the subfamily musk deer. Wild boar are not ruminants only one, but widely distributed, is the most common large animals. Pian footed dromedary and the Bactrian camel has two, in addition there are a few wild Bactrian camel outside, are livestock. Perissodactyla existing major projects for the Asian wild ass, have become extinct European wild horse, Equus przewalskii may be extinct in the wild. Palaearctic have some large carnivores, including tigers shared with the Oriental in the Palaearctic have a separate subspecies, one of the largest Siberian tiger is the shape of cats, also known subspecies, and Caspian tigers are now extinct . Leopard is the most widely distributed of the big cats, one of the ancient northern boundary of the number of subspecies is now rare. Lynx is more common Palaearctic cats, but also the most northern distribution of one of the cats, and the new northern boundary of the total. Bear Branch and the new northern boundary of similar, there are polar bears and brown bears, but no American black bear and black bear in Asia. Canidae and Mustelidae is the most prosperous Palaearctic predators, foxes, weasels, badgers, mink and other small carnivores occupy the position and the wolf is there and the new northern boundary of the importance of large carnivores. Lagomorpha relatively prosperous, the subfamily to which pikas as Palaearctic distribution center, is the advantage of animals grassland areas. Rabbit Rabbit is a member of the subfamily are mainly in the southwest there are the ancestors of rabbit hole rabbit [/ url Palaearctic only monkeys families of primates, with monkeys, Japanese macaques and rhesus monkeys three kinds of the Mediterranean. Branch is a typical macaque Oriental type, the northern boundary of the ancient East Asia, there are two monkeys are the Palaearctic and Oriental no clear boundaries in East Asia results, while the Mediterranean is the only monkeys found in Asia, outside of macaques. 2, bird species distribution: Palaearctic migratory birds in the proportion of large, widespread species of waterfowl and the world the proportion is relatively large, but less climbing and other types of birds, a large proportion of insectivorous birds to feed on fruit and other species is relatively small. Passerine birds, the vast majority belong to the Ming poultry in East Asia only a small number of songbirds from the Oriental infiltrated eight color thrush. Orioles class advantage in songbirds, particularly in East Asia, especially abundant species. Thrush and Robin are also more inland areas, rich Braun. The birds mainly eat seeds and bunting bird, human-populated areas in the eastern part of the dominant tree sparrow, house sparrow and the west is dominant. Specific types of small, mainly rock pipit class. Woodpecker-shaped head and the new northern boundary of the same subjects only woodpeckers, Buddhist monk class is far more rich new northern boundary, in addition to a variety of kingfishers, there hoopoe, Buddhist monks and the Bee-eater, most of them with the Ethiopian community, or shared by the Oriental . The northern boundary of the ancient and the new waders and Youqin very similar to the northern boundary, is a lot Youqin and a breeding ground for wading birds. Youqin in the Anseriformes most species, and a variety of sea birds can be said that the whole class is unique to the northern boundary of the type. The most important thing is wading various plovers snipes, and East Asia is the Crane Division of the distribution center. Galliformes and the new addition to the northern boundary of the common grouse outside of the class, there are pheasants in east Asia, Old World quail seen in many aspects of class are more common. Some large birds of prey in the rich sculpture class to golden eagles, Steller's sea eagles and other most famous, nocturnal birds of prey are also some large species such as eagle owls, owls and brown hair foot fish owl, and some birds of prey with the new northern boundary of Total such as the Arctic snow owl and spear Falcon. 3, reptile species distribution: 4, amphibian species distribution: Palaearctic including Anura amphibians and Anura two projects. Purposes after the end of the new species are the northern boundary, ranking second in the major flora to Salamandridae and Hynobiidae as the rich, but there are some members of other families. Anura narrow range, Ranidae, Bufonidae, and cerulean Division and several other representatives of a small number of subjects, in addition to plate tongue laevis Branch and Pelobatidae the two original families. 5, fish species distribution: Palaearctic species of fish not many rich features some of the north type, such as salmonids, pike families, and many more with the new northern boundary there. In many of the eastern Palaearctic and Oriental have a certain connection types, most types of carp, catfish are the Oriental Division of the genus. 6, other invertebrates, rodents, animals, Chiroptera and Insectivora distribution of species of animals
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World Animal geographical
Palaearctic - the new northern boundary - Oriental - Ethiopia border - new tropical world - Australia, New Territories - the Antarctic sector
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Ecological Environment
In contrast, the eastern Palaearctic little influence by the Ice Age, and many of the Oriental species boundaries is not obvious, a considerable number of species in the exchange, so rich in species than the west. In addition to the Palaearctic and the Oriental world and the old world tropics have some links, and the new northern boundary of the particularly close relationship, both weather conditions similar to the geological history there have been land bridge connected, so the common types of species and the corresponding very large, often combined for the whole north, both the similarity in the northern region the most, on behalf of the north temperate and boreal fauna, species not rich, cold-blooded animal, especially in particular types of small invertebrates, and animal temperature relatively more, and rich in large type. The northern boundary of the whole animal behavior was significantly affected by the seasons, birds, a considerable proportion of migratory birds, amphibians, reptiles and a large number of lower animals have the phenomenon of hibernation, many mammals have the phenomenon of hibernation or winter storage of food habits have .
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World Animal geographical
古北界 世界动物地理分区
古北界 世界动物地理分区
古北界 世界动物地理分区
Palaearctic - the new northern boundary - Oriental - Ethiopia border - new tropical world - Australia, New Territories - the Antarctic sector
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Wikipedia Daquan
Gubeijie Palaearctic Palaearctic realm 6 of the world's terrestrial animals geographical division one of the largest community in the world. Including all of Europe, north Africa and the Arab Tropic of Cancer, the Himalayas and north of the Qinling Mountains in Asia, as well as Asia, Europe and the mainland near the islands, such as Britain, Ireland and Japan. Broad scope of the sector, different regions have very different climatic, geographical landscape changing, mostly low-lying north of the southern mountains tall, with an altitude of 4,000 meters above the desert and the Tibetan Plateau, vegetation types are tundra, sub-boreal coniferous forest (ie taiga), mixed coniferous, grasslands and deserts, and temperate broadleaf forests. Flora ① As the desert, plateau, tundra and so not suitable for animal life and vast geographical landscape, sub-boreal coniferous forest is young, formed after the Quaternary glacial landscape and harsh climate, resulting in relatively poor fauna , endemic families and small, are also a limited number of species included; ② with the Oriental and tropical world be related animal species, the northern boundary of the north and the new species is similar to the South and the Oriental hybrid; ③ with the new northern boundary of the land has occurred many times connection, causing migration of animals between the two sectors have many common species, often collectively referred to as the whole north. (Cheng as new)
