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Sensory Ecology, Behaviour, and Evolution$
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Martin Stevens

Print publication date: 2013

Print ISBN-13: 9780199601776

Published to Oxford Scholarship Online: December 2013

DOI: 10.1093/acprof:oso/9780199601776.001.0001

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Arms Races, Coevolution, and Diversification

Arms Races, Coevolution, and Diversification

Chapter:
(p.143) Chapter 9 Arms Races, Coevolution, and Diversification
Source:
Sensory Ecology, Behaviour, and Evolution
Author(s):

Martin Stevens

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780199601776.003.0009

Interactions between species or groups of organisms, both cooperative and antagonistic, can be powerful generators of biological diversity. This chapter focuses on two key driving forces: arms races and coevolution. Predator–prey relationships provide clear examples of arms races, with predators having a range of general adaptations to capture prey, which have evolved varied defences. But there is little evidence for genuine coevolutionary responses in the sensory systems of the predators to better overcome prey defences. In contrast, coevolution seems widespread and diverse in brood and social parasites in birds and insects, and this has lead to extraordinary defences and counter adaptations in both parasite and host in a range of modalities.

Keywords:   arms race, coevolution, predator–prey relationships, brood parasites, social parasites, defences, counter-adaptations

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