FORAGING, ACTIVITY BUDGET, AND SOCIAL-BEHAVIOR OF THE SOUTH-AMERICAN MARINE OTTER LUTRA-FELINA (MOLINA 1782)

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dc.contributor.authorOSTFELD, RS
dc.contributor.authorEBENSPERGER, L
dc.contributor.authorKLOSTERMAN, LL
dc.contributor.authorCASTILLA, JC
dc.date.accessioned2025-01-23T19:23:42Z
dc.date.available2025-01-23T19:23:42Z
dc.date.issued1989
dc.description.abstractThe foraging behavior and activity budgets of marine otters were studied at three sites spanning -1800 km along the Chilean coast. A total of 1569 foraging dives were observed, of which 481 (30.7%) were successful (prey obtained). Altogether, the diet consisted of crabs (69.8%), fishes (19.9%), shrimp (6.4%), and molluscs (3.9%). Among the three sites, success rate, diet, dive time, activity budget, and possibly social structure differed distinctly. Behavior of otters at the central site was characterized by a high percentage of time spent foraging, low success rate, and consumption of large prey. At the southern site, otters specialized on crabs, lacked crepuscular activity, and spent a low percentage of time in social groups. Otters at the northern site were intermediate in most behavioral attributes. The composition of the diet, as well as several aspects of foraging behavior, are in this species intermediate between those of closely related river otters (Lutra spp.) and more distantly related sea otters (Enhydra lutris). The social organization seemed to consist mainly of monogamous family groups, and was not convergent upon that of sea otters, which are polygnous.
dc.fuente.origenWOS
dc.identifier.issn8755-724X
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/99252
dc.identifier.wosidWOS:A1989DV54200004
dc.issue.numero4
dc.language.isoen
dc.pagina.final438
dc.pagina.inicio422
dc.revistaNational geographic research
dc.rightsacceso restringido
dc.subject.ods14 Life Below Water
dc.subject.ods15 Life on Land
dc.subject.odspa14 Vida submarina
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleFORAGING, ACTIVITY BUDGET, AND SOCIAL-BEHAVIOR OF THE SOUTH-AMERICAN MARINE OTTER LUTRA-FELINA (MOLINA 1782)
dc.typeartículo
dc.volumen5
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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