La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Habitat structure mediates the non-lethal effects of predation on enclosed populations of house mice
Auteurs :	A. D. Arthur, Auteur ; R. P. Pech, Auteur ; C. R. Dickman, Auteur
Type de document :	Article
Dans :	Journal of Animal Ecology (73(5) SEP 2004)
Article en page(s) :	867-877
Résumé :	1. Prey behavioural changes in response to predation risk can result in significant effects on prey body growth rates and reduced reproductive output, with resultant impacts on prey population dynamics. This paper examines the influence of habitat structure on these non-lethal impacts of predation using a model, field-based experimental system, with house mice as prey. 2. Three treatments were employed in eight 50 x 50 m pens that contained mice, but allowed access to a suite of free-living vertebrate predators, which included feral foxes, feral cats and native raptors: a treatment where the natural grassland vegetation in the pens was maintained at a height

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