Data from: Predator encounters have spatially extensive impacts on parental behaviour in a breeding bird community
Predation risk has negative indirect effects on prey fitness, partly mediated through changes in behaviour. Evidence that individuals gather social information from other members of the population suggests that events in a community may impact the behaviour of distant individuals. However, spatially...
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Zusammenfassung: | Predation risk has negative indirect effects on prey fitness, partly
mediated through changes in behaviour. Evidence that individuals gather
social information from other members of the population suggests that
events in a community may impact the behaviour of distant individuals.
However, spatially wide-ranging impacts on individual behaviour caused by
a predator encounter elsewhere in a community have not been documented
before. We investigated the effect of a predator encounter (hawk model
presented at a focal nest) on the parental behaviour of pied flycatchers
(Ficedula hypoleuca), both at the focal nest and at nearby nests different
distances from the predator encounter. We show that nest visitation of
both focal pairs and nearby pairs were affected, up to three hours and one
hour, respectively. Parents also appeared to compensate initial disrupted
feeding by later increasing nest visitation rates. This is the first
evidence showing that the behaviour of nearby pairs was affected away from
an immediate source of risk. Our results indicate that the impacts of
short-term predator encounters may immediately extend spatially to the
broader community, affecting the behaviour of distant individuals.
Information about predators is likely quickly spread by cues such as
intra- and heterospecific alarm calls, in communities of different taxa. |
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DOI: | 10.5061/dryad.n7hc4 |