Show simple item record

dc.contributor.author Ferguson, Steven H
dc.contributor.author Higdon, Jeff W
dc.contributor.author Westdal, Kristin H
dc.date.accessioned 2012-04-27T05:28:31Z
dc.date.available 2012-04-27T05:28:31Z
dc.date.issued 2012-01-30
dc.identifier.citation Aquatic Biosystems. 2012 Jan 30;8(1):3
dc.identifier.uri http://hdl.handle.net/1993/5330
dc.description.abstract Abstract Background Killer whales (Orcinus orca) are the most widely distributed cetacean, occurring in all oceans worldwide, and within ocean regions different ecotypes are defined based on prey preferences. Prey items are largely unknown in the eastern Canadian Arctic and therefore we conducted a survey of Inuit Traditional Ecological Knowledge (TEK) to provide information on the feeding ecology of killer whales. We compiled Inuit observations on killer whales and their prey items via 105 semi-directed interviews conducted in 11 eastern Nunavut communities (Kivalliq and Qikiqtaaluk regions) from 2007-2010. Results Results detail local knowledge of killer whale prey items, hunting behaviour, prey responses, distribution of predation events, and prey capture techniques. Inuit TEK and published literature agree that killer whales at times eat only certain parts of prey, particularly of large whales, that attacks on large whales entail relatively small groups of killer whales, and that they hunt cooperatively. Inuit observations suggest that there is little prey specialization beyond marine mammals and there are no definitive observations of fish in the diet. Inuit hunters and elders also documented the use of sea ice and shallow water as prey refugia. Conclusions By combining TEK and scientific approaches we provide a more holistic view of killer whale predation in the eastern Canadian Arctic relevant to management and policy. Continuing the long-term relationship between scientists and hunters will provide for successful knowledge integration and has resulted in considerable improvement in understanding of killer whale ecology relevant to management of prey species. Combining scientists and Inuit knowledge will assist in northerners adapting to the restructuring of the Arctic marine ecosystem associated with warming and loss of sea ice.
dc.title Prey items and predation behavior of killer whales (Orcinus orca) in Nunavut, Canada based on Inuit hunter interviews
dc.type Journal Article
dc.language.rfc3066 en
dc.description.version Peer Reviewed
dc.rights.holder Ferguson et al.; licensee BioMed Central Ltd.
dc.date.updated 2012-04-27T05:28:32Z
dc.identifier.doi http://dx.doi.org/10.1186/2046-9063-8-3


Files in this item

This item appears in the following Collection(s)

  • Research Publications [1106]
    This collection contains full text research publications authored or co-authored by University of Manitoba researchers.

Show simple item record

View Statistics