文章基本信息

标题：Effect of Body Size on Intraguild Predation between Tadpoles of Bamboo-Breeding Poison Frogs and Predaceous Mosquito Larvae
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作者：Rudolf von May ; Kelsey E. Reider ; Kyle Summers 等
期刊名称：Journal of Freshwater Ecology
印刷版ISSN：0270-5060
电子版ISSN：2156-6941
出版年度：2009
卷号：24
期号：3
页码：431-435
DOI：10.1080/02705060.2009.9664315
出版社：Taylor & Francis
摘要：Our study focused on intraguild predation (IGP) between poison frog tadpoles and predaceous mosquito larvae that use water-filled bamboo internodes as primary microhabitat. We conducted an experiment using artificial pools in southeastern Peru to test the importance of body size of interacting individuals for individual survival. We found that body size strongly affected the outcome of the trophic interaction. We documented a case of symmetric IGP in which members of two phytotelm-breeding species acted as predator or prey depending on their individual and relative body sizes. We found that tadpole relocation by the parent frog may change the relative size of interacting individuals and that priority effects alone cannot be used to predict all outcomes of this interaction.