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Predator personality structures prey communities and trophic cascades [Ecology Letters]

Keywords : Copepod, Daphnia, Epitheca canis, food web, intraspecific variation, predation competition

par Frédéric Magné - publié le

Intraspecific variation is central to our understanding of evolution and population ecology, yet its consequences for community ecology are poorly understood. Animal personality – consistent individual differences in suites of behaviours – may be particularly important for trophic dynamics, where predator personality can determine activity rates and patterns of attack. We used mesocosms with aquatic food webs in which the top predator (dragonfly nymphs) varied in activity and subsequent attack rates on zooplankton, and tested the effects of predator personality.(...)

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