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Schmidt, B R; Amézquita, A (2001). Predator-induced behavioural responses: tadpoles of the neotropical frog Phyllomedusa tarsius do not respond to all predators. Herpetological Journal, 11(1):9-15.

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Abstract

Many species show behavioural responses to predators that reduce predation mortality but
are assumed to be costly. We tested whether an induced behavioural response is predator-specific and whether the strength is related to the risk of being killed by a predator. We used tadpoles of the neotropical frog Phyllomedusa tarsius as prey, and larvae of an aeshnid dragonfly and belostomatid bugs as predators. Belostomatids killed twice as many tadpoles within 24 hours as aeshnids did. Tadpoles reduced activity in the presence of aeshnids by 30% but did not respond at all to the more dangerous belostomatids. Tadpoles did not show spatial avoidance of predators. We favour the explanation that tadpoles of P. tarsius did not respond to belostomatids because belostomatids are encountered too rarely for evolution to favour an induced response to belostomatids.

Citations

16 citations in Web of Science®
18 citations in Scopus®
Google Scholar™

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Evolutionary Biology and Environmental Studies
DDC:570 Life sciences; biology
590 Animals (Zoology)
Language:English
Date:2001
Deposited On:11 Feb 2008 12:14
Last Modified:27 Nov 2013 18:46
Publisher:The British Herpetological Society
ISSN:0268-0130

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