The Herpetological Journal
The Herpetological Journal is the Society's prestigious quarterly scientific journal. Articles are listed in Biological Abstracts, Current Awareness in Biological Sciences,Current Contents, Science Citation Index, and Zoological Record.
ISSN 0268-0130
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pdf 03. Sex differences in polymorphic body coloration and dorsal pattern in Darwin's frogs (Rhinoderma darwinii)
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Open Access
pp. 227-234
Authors: Bourke, Johara; Busse, Klaus C. & Bakker, Theo M.
Abstract: We demonstrate that Darwin's frogs (Rhinoderma darwinii) show sex differences in dorsal pattern and body coloration. Males possessed higher variability than females, which were mainly brown; two dorsal patterns and a green body colour were found exclusively in males. Males at different reproductive stages differed significantly in body colour and dorsal pattern; brooding males were characterized by being greener. Females, which were almost exclusively brown, were mostly found on brown substrates, whereas males were distributed across brown, green and brown/green substrates. An association between body and substrate coloration suggests crypsis to reduce predation risk.
Keywords: POLYMORPHISM, GENDER, MICROHABITAT, CHILE, TEMPORAL VARIATION
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