Holarctic region

Holarctic region

      one of the six major land areas of the world defined on the basis of its characteristic animal life. It encompasses all the nontropical parts of Europe and Asia, Africa north of the Sahara, and North America south to the Mexican desert region. This vast region is often subdivided into the Palaearctic (Old World) and Nearctic (New World) subregions. The vegetational divisions roughly corresponding to this region are the Boreal and Palaeotropical (in part) kingdoms. The animals and plants of the region include a vast array of fishes, amphibians, reptiles, birds, and mammals.

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  • holarctic region — A zoogeographical region encompassing the palaeartic and nearctic regions …   Dictionary of invertebrate zoology

  • Holarctic — Hol arc*tic, a. [Holo + arctic.] Of or pert. to the arctic regions collectively; specif. (Zo[ o]geography), designating a realm or region including the northern parts of the Old and the New World. It comprises the Palearctic and Nearctic regions… …   The Collaborative International Dictionary of English

  • Holarctic — [häl ärk′tik, hōlärk′tik] adj. [ HOL(O) + ARCTIC] designating or of the zoogeographic region consisting of both the Nearctic and Palearctic realms …   English World dictionary

  • Holarctic — The Holarctic ecozone refers to the habitats found throughout the northern continents of the world as a whole. This region is divided into the Palearctic, consisting of Northern Africa and all of Eurasia, with the exception of Southeast Asia and… …   Wikipedia

  • holarctic — 1) the entire arctic region in oceanography 2) a biogeographic region, the Holarctic, including the arctic and north temperate zones of Eurasia (the Palaearctic) and North America (the Nearctic) …   Dictionary of ichthyology

  • Holarctic — adjective Date: 1883 of, relating to, or being the biogeographic region including the northern parts of the Old and the New Worlds and comprising the Nearctic and Palearctic regions or subregions …   New Collegiate Dictionary

  • Holarctic — [hə(ʊ) lα:ktɪk] adjective Zoology relating to or denoting a zoogeographical region comprising the Nearctic and Palaearctic regions. Origin C19: from holo + Arctic …   English new terms dictionary

  • Holarctic —   a. pertaining to or being the whole arctic region …   Dictionary of difficult words

  • holarctic — adj. of or relating to the geographical distribution of animals in the whole northern or arctic region. Etymology: HOLO + ARCTIC …   Useful english dictionary

  • biogeographic region — Introduction       area of animal and plant distribution having similar or shared characteristics throughout.       It is a matter of general experience that the plants and animals of the land and inland waters differ to a greater or lesser… …   Universalium

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