Colonization of subterranean habitats by spiders in Central Europe

Autor: Vlastimil Růžička, Petr Šmilauer, Roman Mlejnek
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: International Journal of Speleology, Vol 42, Iss 2, Pp 133-140 (2013)
Druh dokumentu: article
ISSN: 1827-806X
0392-6672
DOI: 10.5038/1827-806X.42.2.5
Popis: Using data from the Czech Republic, we studied the distribution of spiders in soils, crevice systems, scree and caves, i.e. subterranean habitats at depths spanning from 10 cm to 100 m. In total, we found 161 species. The number of species declines with increasing habitat depth, with a major drop in species richness at the depth of 10 meters. Thirteen species exhibit morphological adaptations to life in subterranean habitats. At depths greater than 10 meters, spider assemblages are almost exclusively composed of troglomorphic species. We propose a hypothesis of evolution of troglomorphisms at spiders during Quaternary climatic cycles.
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