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dc.contributor.author Barbour, Matthew A.
dc.contributor.author Clark, Rulon W.
dc.coverage.spatial Sunol and Ohlone Regional Wilderness
dc.coverage.spatial Alameda County
dc.coverage.spatial California
dc.date.accessioned 2012-10-10T16:32:19Z
dc.date.available 2012-10-10T16:32:19Z
dc.date.issued 2012-07-11
dc.identifier doi:10.5061/dryad.v21bb
dc.identifier.citation Barbour MA, Clark RW (2012) Ground squirrel tail-flag displays alter both predatory strike and ambush site selection behaviours of rattlesnakes. Proceedings of the Royal Society B 279(1743): 3827-3833.
dc.identifier.uri http://hdl.handle.net/10255/dryad.40466
dc.description Many species approach, inspect, and signal toward their predators. These behaviours are often interpreted as predator-deterrent signals—honest signals that indicate to predators that continued hunting is likely to be futile. However, many of these putative predator-deterrent signals are given when no predator is present, and it remains unclear if and why such signals deter predators. We examined the effects of one such signal, the tail-flag display of California ground squirrels, which is frequently given both during and outside direct encounters with northern Pacific rattlesnakes. We video recorded and quantified the ambush foraging responses of rattlesnakes to tail-flagging displays from ground squirrels. We found that tail-flagging deterred snakes from striking squirrels, most likely by advertising squirrel vigilance (i.e., readiness to dodge a snake strike). We also found that tail-flagging by adult squirrels increased the likelihood that snakes would leave their ambush site, apparently by elevating the vigilance of nearby squirrels which reduces the profitability of the ambush site. Our results provide some of the first empirical evidence of the mechanisms by which a prey display, although frequently given in the absence of a predator, may still deter predators during encounters.
dc.relation.haspart doi:10.5061/dryad.v21bb/1
dc.relation.haspart doi:10.5061/dryad.v21bb/2
dc.relation.isreferencedby doi:10.1098/rspb.2012.1112
dc.relation.isreferencedby PMID:22787023
dc.subject predator-prey
dc.subject animal communication
dc.subject predator-deterrent signal
dc.subject rattlesnake
dc.subject ground squirrel
dc.subject pursuit deterrent signal
dc.title Data from: Ground squirrel tail-flag displays alter both predatory strike and ambush site selection behaviours of rattlesnakes
dc.type Article *
dwc.ScientificName Otospermophilus beecheyi
dwc.ScientificName Crotalus oreganus oreganus
dc.contributor.correspondingAuthor Barbour, Matthew A.
prism.publicationName Proceedings of the Royal Society B

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Title SqrlStrikeFactors.4withstrikeoutcome&dodge
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Description Field data of free-ranging rattlesnake strike behaviour in response to ground squirrel tail-flagging displays.
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Title SnakeHuntingDataCoxSurvUpdated3
Downloaded 28 times
Description Field data of free-ranging rattlesnake ambush site selection behaviours in response to tail-flagging displays from ground squirrels.
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