Age and Body Size of the Shangcheng Stout Salamander Pachyhynobius shangchengensis(Caudata:Hynobiidae)from Southeastern China  

作　　者：Jianli XIONG Jianping GOU Yong HUANG Baowei ZHANG Hongtao REN Tao PAN 

机构地区：[1]College of Animal Science and Technology,Henan University of Science and Technology,Luoyang 471023,Henan,China [2]School of life Science,Anhui University,Hefei 230039,Anhui,China

出　　处：《Asian Herpetological Research》2020年第3期219-224,共6页亚洲两栖爬行动物研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(NSFC 31471971)to Jianli XIONG;grants from the National Natural Science Foundation of China(NSFC 31272332)to Baowei ZHANG。

摘　　要：Age and body size a re critical for understanding life history evolution and ecology.In this study,the age and body size of the Shangcheng stout salamander,Pachyhynobius shangchengensis,from a population in Anhui Province,China,were studied by skeletochronology.The mean age was 8.8±0.2(mean±SD)years in females and 9.6±0.2 in males and ranged 5-13 years for both sexes.The mean age was significantly different between sexes.The mean body size and mass were(100.21±0.91)mm and(31.76±0.73)g in females,and(105.31±1.23)mm and(37.14±1.12)g in males,respectively.Males were significantly larger and heavier than females,indicating sexual size dimorphism.There was a significant positive correlation among body size,body mass,and age,suggesting that the oldest individuals are larger and heavier.The growth rate in males was significantly higher than in females.The present study provides preliminary data on life-history traits which can be helpful for future studies of this species and other hynobiid salamanders.

关 键 词：age structure growth rate life history SKELETOCHRONOLOGY 

分 类 号：Q954[生物学—动物学]