Lixia ZHANG,Xiangyu YUAN,Yongsun SHENG,et al.Strong Limb Tactics of the Boulenger’s Lazy Toad, Scutiger boulengeri: Inferred from Limb Muscles[J].Asian Herpetological Research(AHR),2020,11(4):360-364.[doi:10.16373/j.cnki.ahr.200019]
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Strong Limb Tactics of the Boulenger’s Lazy Toad, Scutiger boulengeri: Inferred from Limb Muscles
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Asian Herpetological Research[ISSN:2095-0357/CN:51-1735/Q]

2020 VoI.11 No.4
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Strong Limb Tactics of the Boulenger’s Lazy Toad, Scutiger boulengeri: Inferred from Limb Muscles
Lixia ZHANG1 Xiangyu YUAN1 Yongsun SHENG1 Fei YU1 Xueting ZHONG2 Xiaohong CHEN1* and Dingqi RAO3*
1 Department of Ecology, College of Life Sciences, Henan Normal University, Xinxiang 453007, Henan, China2 Key Laboratory of Vector Biology and Pathogen Control of Zhejiang Province, College of Life Sciences, Huzhou University, Huzhou 313000, Zhejiang, China3 State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, Yunnan, China
inguinal amplexus limb muscles Scutiger boulengeri sexual dimorphism sexual selection
Theory predicts that well-developed limb musculature can result from sexual selection favoring strong males. We tested for this prediction in the Boulenger’s lazy toad (Scutiger boulengeri), a species that exhibits inguinal amplexus. As expected, we found that males had more massive forelimbs and hindlimbs than those of females. In addition, amplectant males had relatively more massive hindlimbs than non-amplectant males. This pattern can be explained by sexual selection, as the greater forelimb muscles allow males to hold females more tightly and massive hindlimbs likely confer a locomotor advantage in defending mates. This study contributes to an increasing body of literature clarifying the role of sexual selection in producing sexual dimorphism in anuran limbs.


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Last Update: 2020-12-25