捕食者饮食线索在北美林蛙幼体对鱼类和无脊椎动物捕食者反应中的重要性。

Importance of predator diet cues in responses of larval wood frogs to fish and invertebrate predators.

作者信息

Chivers D P, Mirza R S

机构信息

Department of Biological Sciences, University of Maine, 5751 Murray Hall, Orono, Maine 04469-5751, USA.

出版信息

J Chem Ecol. 2001 Jan;27(1):45-51. doi: 10.1023/a:1005663815856.

DOI:10.1023/a:1005663815856

PMID:11382066

Abstract

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.

摘要

我们研究了捕食者的饮食对北美林蛙（Rana sylvatica）幼体反捕食反应的影响。我们发现，蝌蚪对以蝌蚪为食的鱼类（黄鲈，Perca flavescens）的反应比对以无脊椎动物为食的鱼类的反应更强。同样，我们发现蝌蚪对以蝌蚪为食的蜻蜓幼虫（大蜓属，Anax spp.）的反应比对以无脊椎动物为食的蜻蜓的反应更强。蝌蚪对鱼类的总体反应强度比对蜻蜓的反应强度要强得多。捕食者饮食效应在捕食者 - 猎物系统中并非普遍存在。我们讨论了在一些但并非所有捕食者 - 猎物系统中出现捕食者饮食效应的可能原因。