Encyclopedia > Palearctic

  Article Content

Palearctic

The Palearctic ecozone includes the terrestrial ecoregions of Europe, Asia north of the Himalayas, Africa north of the Sahara desert and some parts of the Middle East.

Physically, it is the largest ecozone, but it has few unique features since it is central and temperate or tundra, with no truly tropical areas, but some arid areas with near-tropical climates (Sicily, southern Spain, Greece).

Because of its size, it is often divided for convenience into the Western Palaearctic and the Eastern Palaearctic, the Ural mountains being taken as the boundary.

This zone and the Nearctic were often connected by the Bering land bridge, and therefore have more similarities than other faunal zones. They are therefore sometimes considered together as a circumpolar Holarctic zone.

Ecologically important features:

One bird family, Prunellidae, the accentors, is endemic to the Palearctic region . The Holarctic has four endemic groups: Gaviidae, divers, Tetraoninae grouse, Alcidae auks, and Bombycillidae waxwings.

Animal families originally unique to the Palearctic ecozone include:

  • horses
  • cows (imported to India and elsewhere?)

(this is a stub - must cover all ecologically important features)

External link :

Map of the ecozones (http://www.panda.org/about_wwf/where_we_work/ecoregions/global200/pages/mainmap.htm)


Ecozones

Nearctic | Palearctic | Afrotropic | Indomalaya | Australasia | Neotropic | Oceania | Antarctica


Paleartic biomes

Tropical and Subtropical Moist Broadleaf Forests | Temperate Broadleaf and Mixed Forests | Temperate Coniferous Forests | Boreal Forests/Taiga | Temperate Grasslands, Savannas, and Shrublands | Flooded Grasslands and Savannas | Montane Grasslands and Shrublands | Tundra | Mediterranean Forests, Woodlands, and Shrub | Deserts and Xeric Shrublands


See also : List of palearctic ecoregions



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Lake Ronkonkoma, New York

... to the United States Census Bureau, the town has a total area of 12.7 km² (4.9 mi²). 12.7 km² (4.9 mi²) of it is land and none of the area is covered ...

 
 
 
This page was created in 46.6 ms