ITEM METADATA RECORD
Title: Fish predation selects for reduced foraging activity
Authors: Strobbe, Francis
McPeek, Mark A
De Block, Marjan
Stoks, Robby # ×
Issue Date: Feb-2011
Publisher: Springer-Verlag Heidelberg
Series Title: Behavioral Ecology and Sociobiology vol:65 issue:2 pages:241-247
Abstract: Despite the importance of foraging activity for the growth/predation risk trade-off, studies that demonstrated predator-induced survival selection on foraging activity under semi-natural conditions are relatively rare. Here, we tested for fish-induced selection for reduced foraging activity in two larval Enallagma damselflies using a field enclosure experiment. Fish imposed considerable mortality in both damselfly species and survival selection on foraging activity could be detected in Enallagma geminatum. We did not detect selection in Enallagma hageni, probably because this species already was not eating very much in the absence of fish compared to E. geminatum. Both species responded strongly to the presence of predators by reducing their foraging activity. The documented survival selection on foraging activity was detected despite the already low activity levels in fish lake prey species and despite strong predator-induced plasticity in this trait.
ISSN: 0340-5443
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Ecology, Evolution and Biodiversity Conservation Section
Laboratory for Aquatic Ecology and Evolutionary Biology (-)
× corresponding author
# (joint) last author

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