Tail Display Intensity is Restricted by Food Availability in an Asian Agamid Lizard(Phrynocephalus vlangalii)

作     者：Xinxin ZHU Zhongyi YAO Yin QI Xinxin ZHU;Zhongyi YAO;Yin QI

作者机构：Chengdu Institute of BiologyChinese Academy of SciencesChengdu 610041SichuanChina University of Chinese Academy of SciencesBeijing 101409China 

出 版 物：《Asian Herpetological Research》 (亚洲两栖爬行动物研究（英文版）)

年 卷 期：2020年第11卷第3期

页      面：240-248页

核心收录：

学科分类：07[理学] 0713[理学-生态学] 

基　　金：supported by the biodiversity survey and assessment project of the ministry of ecology and environment,China(grant number 2019HJ2096001006) from the National Na tural Science Founda tion of China to Y.QI(grant number 31872233) 

主　　题：animal communication energy limitation lizard signal variation tail display 

摘      要：To ascertain the function of signals,we have to first uncover the reasons behind signal *** are several potential driving forces,including background noise,predation cost,receiver perception,and energy *** energy limitation hypothesis assumes that individuals trade off signal intensity and energy expenditure according to resource condition,while variation of signal intensity likely associates with food *** hypothesis has been evidenced by a great number of researches on vocal signals,but no studies evaluated the influence of food availability on motion visual signal in *** we used an Asian agamid lizard Phr ynocephalus vlangalii and examined the effect of food availability on tail display *** designed two food restriction treatments as well as a nature control treatment,and quantified individual tail display speed and display duration under different food availability *** with our prediction,our results showed that males significantly reduced their average tail display speed and maximum display speed in both food restriction treatments when compared to nature control ***,our study provides direct evidence that lizards would trade off their display intensity according to the food condition,suggesting tail display is energetically costly and likely provides honest information on individual body condition and resource hold potential.