Diet of Chinese skink, Eumeces chinensis: is prey size important?
作者机构：School of Life SciencesXiamen UniversityXiamenChina
出 版 物：《Integrative Zoology》 (整合动物学（英文版）)
年 卷 期：2006年第1卷第2期
页 面：59-66页
核心收录：
学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学]
基 金：Fujian Foundation Council of the People's Republic of China [D0510001]
主 题：diet Eumeces feeding ecology foraging strategy prey size skink
摘 要：The diet of the skink,Eumeces chinensis(Lacertilia:Scincidae),in Xiamen(Amoy),China was examined using stomach analysis during April and May,and its selection of prey size was tested by feeding ***(primarily Coleoptera,Lepidoptera,and Orthoptera),gastropods and arachnids constituted most of the *** diet,but earthworms,leeches,crustaceans and fish were also *** the field,male skinks ate more prey items that were 11–20 mm in length than other size *** presented with a choice of different-sized prey in the laboratory,male *** exhibited a strong preference for prey items 11–20 mm in length over other size *** relationship between prey size and handling time was exponential,indicating that there is an upper limit to the ability of *** to process *** energy intake for handling different-sized prey showed that selection of midsize-class prey items would provide male *** with the most energy-efficient prey *** results indicate that prey size selection in *** favors maximization of rates of energy intake,which is in agreement with optimal foraging theory.
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