A theoretical investigation of the effect of predators on foraging behavour and energy reserves

JM McNamara, Z Barta, AI Houston

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

Data show that when small birds are exposed to a model of a predator, their body mass may either increase or decrease. Although attempts have been made to explain the data using previous models, these models are based on a constant level of predation and hence are not appropriate for making predictions about the response of a bird to the sight of a predator. We have developed a novel model that includes encounters between a bird and potential predators. We show that, depending on the biology of the predator, optimal body mass may either increase or decrease. The model also makes predictions about the foraging behaviour of the bird after it has seen a predator.
Translated title of the contributionA theoretical investigation of the effect of predators on foraging behavour and energy reserves
Original languageEnglish
Pages (from-to)929 - 934
JournalRoyal Society B
Volume272 (1566)
Publication statusPublished - 7 May 2005

Bibliographical note

Publisher: Royal Society
Other identifier: IDS number 937MU

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