Journal of Cave and Karst Studies - ISSN 1090-6924
Volume 61 Number 3: 139-140 - December 1999

A publication of the National Speleological Society

Distribution Map of Caves and Cave Animals in the United States
David C. Culver, Horton H. Hobbs III, Mary C. Christman and Lawrence L. Master


The distributions of nearly 45,000 caves and 924 obligate cave species and subspecies (stygobites and troglobites) in the 48 contiguous states of the United States were mapped by county. Both maps show a highly clumped distribution. Approximately one-half of the variance in the number of species in a county is explained by variance in the number of caves per county.

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