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Evolutionary EcologyThe Trinidadian Guppy$
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Anne E. Magurran

Print publication date: 2005

Print ISBN-13: 9780198527855

Published to Oxford Scholarship Online: September 2007

DOI: 10.1093/acprof:oso/9780198527855.001.0001

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Evading predators

Evading predators

Chapter:
(p.42) 3 Evading predators
Source:
Evolutionary Ecology
Author(s):

Anne E. Magurran

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198527855.003.0003

Trinidadian guppies provided one of the first experimental demonstrations that predators have a significant impact on behaviour and morphology. This chapter begins with a brief general introduction to predator prey interactions. The consequences of variation in predation risk for Trinidadian guppies, and the trade-offs linked to effective predator defences are then evaluated. It asks if and when adaptive differences can be classed as evolutionary change, and considers the pitfalls associated with such assumptions. Schooling behaviour, evasive tactics, crypsis and colour patterns, mating activity, foraging, and time budgets are examined as well as the relationship between learning skills and geographic variation anti-predator responses. Age-related changes in morphology and behaviour are explored. The chapter ends by examining differences between the sexes in response to predation.

Keywords:   predator-prey interactions, predation risk, evolutionary change, kinship, familiarity, learning, ontogeny, sex differences

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