Clinal variation in body and cell size in a widely distributed vertebrate ectotherm

Abstract

Bergmann’s rule states that, among conspecific populations, individuals are larger in cooler than in warmer environments as a consequence of selection related to heat conservation. Many of the most comprehensive assessments of Bergmann’s rule to date have examined clinal patterns in body size among species assemblages. Our study is a more direct test of… (More)
DOI: 10.1007/s00442-004-1611-6

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