Avtor/Urednik		Culver, David C; Deharveng, Louis; Bedos, Anne; Lewis, Julian J; Madden, Molly; Reddell, James R; Sket, Boris; Trontelj, Peter; White, Denis
Naslov		The mid-latitude biodiversity ridge in terrestrial cave fauna
Tip		članek
Vir		Ecography
Vol. in št.		Letnik 29, št. 1
Leto izdaje		2006
Obseg		str. 120-8
Jezik		eng
Abstrakt		The world's obligate cave-dwelling fauna holds considerable promise for biogeographic analysis because it represents a large number of independent evolutionary experiments in isolation in caves and adaptation to subterranean life. We focus on seven north temperate regions of at least 2000 km2, utilizing more than 4300 records of obligate cave-dwelling terrestrial invertebrates. In North America, highest diversity was found in northeast Prlabama while in lEurope highest diversity was found in Ariege, France, and in southeast Slovenia. Based on these regions as well as more qualitative data from 16 other regions, we hypothesize that a ridge (ca 42°-46° in Europe and 34° in North America) of high biodiversity occurs in temperate areas of high productivity and cave density. This may reflect a strong dependence of cave communities on long term surface productivity (as reflected in actual evapotranspiration), because the subterranean fauna relies almost entirely on resources produced outside caves. This dependence may explain the unique biodiversity pattern of terrestrial cave invertebrates.
Deskriptorji		FRESH WATER ECOSYSTEM ANIMALS POPULATION DENSITY FRANCE ALABAMA TEXAS WEST VIRGINIA INDIANA SLOVENIA