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.

 ISSN 0268-0130

2020 Impact Factor for the Herpetological Journal is 0.862


pdf 02. Sexual dimorphism in the limb muscles of the dark-spotted frog, Pelophylax nigromaculata

423 downloads

Open Access

pp. 147-153
Authors: Mao, Min; Mi, Zhi Ping; Yang, Zhi Song & Zhou, Cai Quan

Abstract: It has been shown in many anurans that males with larger body size have a mating advantage. However, robust forelimb muscles rather than large body size per se might increase the likelihood of mating. To this end, we investigated sexual dimorphism of nine forelimb muscles and nine hindlimb muscles of Pelophylax nigromaculata. We found that three forelimb muscles involved in axillary amplexus were heavier in males compared to females, whereas five forelimb muscles not involved in axillary amplexus showed no sexual differences in muscle mass. The observed muscle dimorphism was allometric, and could be the result of sexual selection. The analysis on hindlimb muscle mass revealed a largely female-biased sexual dimorphism, likely related to females being heavier. There was a positive correlation between forelimb and hindlimb muscle mass and SVL for both sexes. There was no significant sexual difference in the contents of water in musculature except for the extensor carpi radialis.

Keywords: PELOPHYLAX NIGROMACULATA, MUSCLES, SEX SELECTION, SEXUAL DIMORPHISM

Download Access:

The latest 8 issues can be downloaded when logged in with a Herpetological Journal subscription membership.

Individual articles can be purchased for download.

Older issues and occasional Open Access articles are available for public download

Submissions:

For further information and submission guidelines please see our Journal Instructions to Authors

pdfBHS Ethics Policy

IMPORTANT NOTE - JUNE 2020

Please note that as from Volume 31 Number 1 (January 2021) on, the Herpetological Journal will be available as an online publication only - the last print edition will be Volume 30 Number 4.   

Aligning with this change, it is now no longer possible to purchase a subscription that includes a print copy of the HJ.  All members who have existing HJ print subscriptions that remain active as at end June 2020 will receive the full four 2020 print editions.  New subscribers or renewals after this time will only have option to subscribe to the online only subscription package.  Subscription pricing has been amended to reflect the content changes.