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dc.contributor.authorMinderman, Jeroenen_UK
dc.contributor.authorLind, Johanen_UK
dc.contributor.authorCresswell, Willen_UK
dc.description.abstractThe effect of competition for a limiting resource on the population dynamics of competitors is usually assumed to operate directly through starvation, yet may also affect survival indirectly through behaviourally mediated effects that affect risk of predation. Thus, competition can affect more than two trophic levels, and we aim here to provide an example of this.We show that the foraging success of redshanks Tringa totanus (L.) foraging on active prey was highest in the front of flocks, whereas this was not the case for redshanks foraging on inactive prey. Also, when foraging on active prey, foraging success in a flock decreased as more birds passed through a patch, while overall foraging success was not lower on subsequent visits to the same patch. Thus, redshanks foraging on active prey suffered from interference competition, whereas this was not the case for redshanks foraging on inactive prey.This interference competition led to differences in activity: redshanks attaining a lower foraging success had a higher walking rate. Greater activity was associated with wider flock spacing and shorter distances to cover, which has previously been shown to increase predation risk and mortality from sparrowhawks Accipiter nisus (L.).We conclude that behavioural adaptations of prey species can lead to interference competition in foraging redshanks, and thus can affect their predation risk and mortality through increased activity. This study is one of the first to show how interference competition can be a mechanism for behaviourally mediated indirect effects, and provides further evidence for the suggestion that a single species occupying an intermediate trophic level may be simultaneously top-down controlled by a predator and bottom-up controlled by a behavioural response of its prey.en_UK
dc.relationMinderman J, Lind J & Cresswell W (2006) Behaviourally mediated indirect effects: interference competition increases predation mortality in foraging redshanks. Journal of Animal Ecology, 75 (3), pp. 713-723.
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.en_UK
dc.subjecttop-down controlen_UK
dc.subjecttrophic levelsen_UK
dc.titleBehaviourally mediated indirect effects: interference competition increases predation mortality in foraging redshanksen_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreason[MindermanetalJAE2006.pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.en_UK
dc.citation.jtitleJournal of Animal Ecologyen_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationUniversity of St Andrewsen_UK
dc.contributor.affiliationUniversity of St Andrewsen_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorMinderman, Jeroen|0000-0002-8451-5540en_UK
local.rioxx.authorLind, Johan|en_UK
local.rioxx.authorCresswell, Will|en_UK
local.rioxx.projectInternal Project|University of Stirling|
Appears in Collections:Biological and Environmental Sciences Journal Articles

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