Importance of predator diet cues in responses of larval wood frogs to fish and invertebrate predators
Importance of predator diet cues in responses of larval wood frogs to fish and invertebrate predators
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DOI：
10.1023/a:1005663815856
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发表时间：
2001-01-01
影响因子：
2.3
通讯作者：
Mirzal, RS
中科院分区：
文献类型：
--
作者：
Chivers, DP;Mirzal, RS
我们研究了捕食者的饮食上的幼虫树蛙（林蛙sylvatica）的antipredator反应的影响。我们发现，蝌蚪表现出更强的反应，鱼（Perca flavescens），喂养蝌蚪比那些喂养无脊椎动物。同样，我们发现蝌蚪对幼虫蜻蜓（Anax spp.）而不是蜻蜓喂养的无脊椎动物。蝌蚪对鱼类的反应强度远大于对蜻蜓的反应强度。捕食者食物效应在捕食系统中并不普遍存在。我们讨论了可能的原因，为什么捕食者饮食的影响，在一些，但不是所有的，捕食系统。
We examined the effects of predator diet on the antipredator responses of larval woodfrogs (Rana sylvatica). We found that tadpoles showed stronger responses to fish (Perca flavescens) that were fed tadpoles than those fed invertebrates. Similarly, we found that tadpoles responded more strongly to larval dragonflies (Anax spp.) fed tadpoles than to dragonflies fed invertebrates. The overall intensity of response of tadpoles to fish was much stronger than that to dragonflies. Predator diet effects are not ubiquitous in predator-prey systems. We discuss possible reasons why predator diet effects are seen in some, but not all, predator-prey systems.