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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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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 26 February 2021

Evading predators

Evading predators

(p.42) 3 Evading predators
Evolutionary Ecology

Anne E. Magurran

Oxford University Press

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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