Scales of detection and escape of the sea urchin <i>Tetrapygus niger</i> in interactions with the predatory sun star <i>Heliaster helianthus</i>

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dc.contributor.authorManzur, Tatiana
dc.contributor.authorNavarrete, Sergio A.
dc.date.accessioned2025-01-21T00:00:28Z
dc.date.available2025-01-21T00:00:28Z
dc.date.issued2011
dc.description.abstractPredators can simultaneously have lethal (consumption) and non-lethal (modification of traits) effects on their prey. Prey escape or fleeing from potential predators is a common form of a non-lethal predator effect. The efficiency of this response depends on the prey's ability to detect and correctly identify its predator far enough to increase the probability of successful escape, yet short enough to allow it to allocate time to other activities (e.g. foraging). In this study, we characterized the non-lethal effect of the sun star Heliaster helianthus on the black sea urchin Tetrapygus niger by assessing the nature of predator detection and the spatial scale involved both in predator detection and in the escape response. Through field and laboratory experiments we demonstrate that T. niger detects chemical cues released by H. helianthus. In the laboratory, these chemical signals can be detected at distances of up to about 50 cm. In the field, the distance traveled by urchins when escaping, after recognition of the predation risk, was also restricted to about 40 cm. Thus, considering the sizes of the predator and prey, the spatial scale of both detection and escape is comparatively small suggesting that non-lethal effects of H. helianthus (e.g. how it modifies the behavior of T. niger) should be important at local spatial scales and highly variable at the landscape scale. (C) 2011 Elsevier B.V. All rights reserved.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.jembe.2011.06.025
dc.identifier.issn0022-0981
dc.identifier.urihttps://doi.org/10.1016/j.jembe.2011.06.025
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95342
dc.identifier.wosidWOS:000295707900021
dc.issue.numero2
dc.language.isoen
dc.pagina.final308
dc.pagina.inicio302
dc.revistaJournal of experimental marine biology and ecology
dc.rightsacceso restringido
dc.subjectDetection
dc.subjectEscape
dc.subjectNon-lethal predator effects
dc.subjectSpatial scale
dc.subject.ods15 Life on Land
dc.subject.ods14 Life Below Water
dc.subject.ods13 Climate Action
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa14 Vida submarina
dc.subject.odspa13 Acción por el clima
dc.titleScales of detection and escape of the sea urchin <i>Tetrapygus niger</i> in interactions with the predatory sun star <i>Heliaster helianthus</i>
dc.typeartículo
dc.volumen407
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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