Regurgitative food transfer among wild wolves

Canadian Journal of Zoology
By: , and 



Few studies of monogamous canids have addressed regurgitation in the context of extended parental care and alloparental care within family groups. We studied food transfer by regurgitation in a pack of wolves on Ellesmere Island, North West Territories, Canada, during 6 summers from 1988 through 1996. All adult wolves, including yearlings and a post-reproductive female, regurgitated food. Although individuals regurgitated up to five times per bout, the overall ratio of regurgitations per bout was 1.5. Pups were more likely to receive regurgitations (81%) than the breeding female (14%) or auxiliaries (6%). The breeding male regurgitated mostly to the breeding female and pups, and the breeding female regurgitated primarily to pups. The relative effort of the breeding female was correlated with litter size (Kendall's τ = 0.93, P = 0.01).

Publication type Article
Publication Subtype Journal Article
Title Regurgitative food transfer among wild wolves
Series title Canadian Journal of Zoology
DOI 10.1139/z99-097
Volume 77
Issue 8
Year Published 1999
Language English
Publisher NRC Research Press
Contributing office(s) Northern Prairie Wildlife Research Center
Description 4 p.
First page 1192
Last page 1195
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