Age Structure of Two Species of Odorous Frogs(Odorrana margaretae and Odorrana grahami)

【Author】

Lianju YUAN;Maojun ZHONG;Wenbo LIAO;Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University;Key Laboratory of Artificial Propagation and Utilization in Anurans of Nanchong City, China West Normal University;Institute of Eco-adaptation in Amphibians and Reptiles, China West Normal University;

【Institution】

Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University;Key Laboratory of Artificial Propagation and Utilization in Anurans of Nanchong City, China West Normal University;Institute of Eco-adaptation in Amphibians and Reptiles, China West Normal University;

【Abstract】

Variation in age structure and body size benefits are identified to understand the evolution of life history. Here, we estimated the age structure and body size of two species of odorous frogs(Odorrana margaretae and Odorrana grahami) by using skeletochronology. The ages at sexual maturity of O. grahami and O. margaretae in both sexes were 1 and 2 years, respectively. For both sexes, the maximum age observed in O. margaretae was six years. For O. grahami, the maximum age observed in males and females were 4 and 5 years, respectively. Males and females did not differ in mean age in the two species.The average body size of both species considerably differed between sexes, with females being larger than males. The body size of females was also larger than that of males when the effect of age was removed. We also found positive correlations between body size and age within each sex in O. margaretae, but only for female in O. grahami. The female-biased sexual size dimorphism of the two species suggested that fecundity selection for larger female size may increase the reproductive output.

【Keywords】

age structure;;body size;;odorous frogs;;skeletochronology

References

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Springer Journals Database

Total: 34 articles

  • [1] Maojun ZHONG;Xin YU;Wenbo LIAO;Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University;Key Laboratory of Artificial Propagation and Utilization in Anurans of Nanchong City, China West Normal University;Institute of Eco-adaptation in Amphibians and Reptiles, China West Normal University;, A Review for Life-history Traits Variation in Frogs Especially for Anurans in China, Asian Herpetological Research,
  • [2] Jianli XIONG;Jianping GOU;Yong HUANG;Baowei ZHANG;Hongtao REN;Tao PAN;College of Animal Science and Technology, Henan University of Science and Technology;School of life Science, Anhui University;, Age and Body Size of the Shangcheng Stout Salamander Pachyhynobius shangchengensis(Caudata: Hynobiidae) from Southeastern China, Asian Herpetological Research,
  • [3] ClaudeMiaud;RobertGuyétant;JohanElmberg, Variations in life‐history traits in the common frog Rana temporaria (Amphibia: Anura): a literature review and new data from the French Alps, Journal of Zoology,
  • [4] Wichase Khonsue;;Masafumi Matsui;;Yasuchika Misawa, Age Determination by Skeletochronology of Rana nigrovittata , a Frog from Tropical Forest of Thailand, Zoological Science,

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