The effect of 'Schreckstoff' on the shoaling behaviour of the minnow: a test of Hamilton's selfish herd theory
@article{Krause1993TheEO, title={The effect of 'Schreckstoff' on the shoaling behaviour of the minnow: a test of Hamilton's selfish herd theory}, author={Jens Krause}, journal={Animal Behaviour}, year={1993}, volume={45}, pages={1019-1024} }
Abstract Abstract. According to Hamilton's selfish herd theory, per capita predation risk is lower in the centre than on the periphery of a group. If this is so, it should influence the positioning behaviour of individuals in groups. Most cyprinid fishes live in shoals and respond to Schreckstoff, a fright substance located in the skin, by forming tight shoals. Fourteen dace, Leuciscus leuciscus , habituated to Schreckstoff and a single naive minnow, Phoxinus phoxinus , were combined in order…
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