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dc.contributor.authorde Bruyn, P.J.N.
dc.contributor.authorTosh, C.A.
dc.contributor.authorTerauds, A.
dc.date.accessioned2014-07-31T09:00:30Z
dc.date.available2014-07-31T09:00:30Z
dc.date.issued2013
dc.identifier.citationde Bruyn, P.J.N., Tosh, C.A. and Terauds, A. (2013). Killer whale ecotypes: is there a global model? Biological Reviews 88, 62-80.en
dc.identifier.urihttp://hdl.handle.net/123456789/1574
dc.description.abstractKiller whales, Orcinus orca, are top predators occupying key ecological roles in a variety of ecosystems and are one of the most widely distributed mammals on the planet. In consequence, there has been significant interest in understanding their basic biology and ecology. Long-term studies of Northern Hemisphere killer whales, particularly in the eastern North Pacific (ENP), have identified three ecologically distinct communities or ecotypes in that region. The success of these prominent ENP studies has led to similar efforts at clarifying the role of killer whale ecology in other regions, including Antarctica. In the Southern Hemisphere, killer whales present a range of behavioural, social and morphological characteristics to biologists, who often interpret this as evidence to categorize individuals or groups, and draw general ecological conclusions about these super-predators. Morphologically distinct forms (Type A, B, C, and D) occur in the Southern Ocean and studies of these different forms are often presented in conjunction with evidence for specialised ecology and behaviours. Here we review current knowledge of killer whale ecology and ecotyping globally and present a synthesis of existing knowledge. In particular, we highlight the complexity of killer whale ecology in the Southern Hemisphere and examine this in the context of comparatively well-studied Northern Hemisphere populations. We suggest that assigning erroneous or prefatory ecotypic status in the Southern Hemisphere could be detrimental to subsequent killer whale studies, because unsubstantiated characteristics may be assumed as a result of such classification. On this basis, we also recommend that ecotypic status classification for Southern Ocean killer whale morphotypes be reserved until more evidence-based ecological and taxonomic data are obtained.en
dc.format.extent1908244 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherCambridge Philosophical Societyen
dc.subjectkiller whaleen
dc.subjectOrcinus orcaen
dc.subjectSouthern Oceanen
dc.subjectAntarcticaen
dc.subjectsub-Antarcticen
dc.subjecteastern North Pacificen
dc.subjectNorth Atlanticen
dc.titleKiller whale ecotypes: is there a global model?en
dc.typeJournalArticlesen
dc.cibjournalBiological Reviewsen
dc.cibprojectNAen


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