Fish predation selects for reduced foraging activity

摘要: Despite the importance of foraging activity for growth/predation risk trade-off, studies that demonstrated predator-induced survival selection on under semi-natural conditions are relatively rare. Here, we tested fish-induced reduced in two larval Enallagma damselflies using a field enclosure experiment. Fish imposed considerable mortality both damselfly species and could be detected geminatum. We did not detect hageni, probably because this already was eating very much absence fish compared to E. Both responded strongly presence predators by reducing their activity. The documented despite low levels lake prey strong plasticity trait.