The British Herpetological Society

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.

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pdf 12. Sexual dimorphism in two species of hynobiid salamanders (Hynobius leechii and Salamandrella keyserlingii)

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pp. 109-114

Authors: Jianli Xiong, Xiuying Liu, Mengyun Li, Yanan Zhang & Yao Min

Abstract:  Sexual dimorphism is a widespread phenomenon throughout the animal kingdom and a key topic in evolutionary biology. In this study, we quantified patterns of sexual dimorphism in two hynobiid salamanders (Hynobius leechii and Salamandrella keyserlingii) from Chinese populations. Sexual size dimorphism did not occur in either species, despite differences in body shape traits. Likely related to fecundity selection, females have relatively longer trunks in both species. Female S. keyserlingii have larger heads likely due to reproductive investment and ecological selection, whereas larger forelimb and hindlimb width in male H. leechii may be related to reproductive behaviour.

Key words: Asian salamander, Hynobiidae, morphology, sexual size dimorphism

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