Body Size but Not Food Size Determined Head Sexual Dimorphism in Rana kukunoris from the Tibetan Plateau  

作　　者：Hongzhou CHEN Haifen QIN Zhenkun ZHAO Jiahong LIAO Yanfang WU Xueyan LIU Lichun JIANG Buddhi DAYANANDA Wei CHEN 

机构地区：[1]School of Resources and Environmental Engineering,Anhui University,Hefei 230601,Anhui,China [2]Key Laboratory for Molecular Biology and Biopharmaceutics,School of Life Science and Technology,Mianyang Normal University,Mianyang 621000,Sichuan,China [3]School of Agriculture and Food Sciences,The University of Queensland,Brisbane QLD 4072,Australia

出　　处：《Asian Herpetological Research》2023年第2期175-181,共7页亚洲两栖爬行动物研究（英文版）

基　　金：support from the National Natural Science Foundation of China(grant no.32270457);The authors confirmed that this study based on the The Animal Ethics Committee at Anhui University permitted this experiments(IACUC(AHU)-2022-007).

摘　　要：Sexual dimorphism between males and females is a common pattern observed in the natural world and has become one of the main focuses of evolutionary biology.Amphibian head size and shape are important factors that may influence food acquisition,but knowledge about the sexual differences between amphibian head size and shape is relatively scant.Here,intersexual differences in the head size and shape of Rana kukunoris,which is a high-elevation frog from the Qinghai-Tibet Plateau,were investigated.Significant differences were found in the head shape but not the head size between sexes.A significant correlation was also observed between prey size and head size.However,these correlations disappeared when individual body size was controlled,suggesting that body size but not food size was the main factor resulting in intersexual differences in head size/shape.The results suggested that food competition between sexes did not result in sexual dimorphism of head shape among these frogs.

关 键 词：AMPHIBIANS head shape MORPHOMETRICS RANA Rana kukunoris sexual dimorphism 

分 类 号：Q958[生物学—动物学]