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  1. #1
    Fish&Fly
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    Acute and chronic increases in predation risk affect the territorial behaviour of juv

    Acute and chronic increases in predation risk affect the territorial behaviour of juvenile Atlantic salmon in the wild

    Publication year: 2010
    Source: Animal Behaviour, In Press, Corrected Proof, Available online 18 October 2010</br>
    Jae-Woo, Kim , Jacquelyn L.A., Wood , James W.A., Grant , Grant E., Brown</br>
    Optimality models predict that territory size will decrease as the costs of defence increase. One poorly understood cost is predation risk, especially the relative influence of short- versus long-term increases in predation risk. Under natural conditions, we quantified the territorial behaviour of juvenile Atlantic salmon, Salmo salar, exposed to either acute or chronic increases in perceived predation risk. The effects of an acute increase in predation risk were assessed by exposing 18 young-of-the-year (YOY) Atlantic salmon to a control of stream water and to an alarm cue (i.e. conspecific skin extract) while monitoring their territorial behaviour. We investigated the effects...</br>

    19th October 2010 04:04

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  2. #2
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    Quote Originally Posted by Editor View Post
    Acute and chronic increases in predation risk affect the territorial behaviour of juvenile Atlantic salmon in the wild

    Optimality models predict that territory size will decrease as the costs of defence increase.
    I thought that we were getting defence cuts this week, surely the costs of defence dereases.

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