Regurgitative food transfer among wild wolves

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 199...

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Main Authors: Mech, L. David, Wolf, Paul C., Packard, Jane M.
Format: Text
Language:unknown
Published: DigitalCommons@University of Nebraska - Lincoln 1999
Subjects:
Online Access:https://digitalcommons.unl.edu/usgsnpwrc/380
https://digitalcommons.unl.edu/context/usgsnpwrc/article/1392/viewcontent/Mech_CJZ_1999_Regurgitative_food_transfer.pdf
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spelling ftunivnebraskali:oai:digitalcommons.unl.edu:usgsnpwrc-1392 2023-11-12T04:16:42+01:00 Regurgitative food transfer among wild wolves Mech, L. David Wolf, Paul C. Packard, Jane M. 1999-01-01T08:00:00Z application/pdf https://digitalcommons.unl.edu/usgsnpwrc/380 https://digitalcommons.unl.edu/context/usgsnpwrc/article/1392/viewcontent/Mech_CJZ_1999_Regurgitative_food_transfer.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/usgsnpwrc/380 https://digitalcommons.unl.edu/context/usgsnpwrc/article/1392/viewcontent/Mech_CJZ_1999_Regurgitative_food_transfer.pdf USGS Northern Prairie Wildlife Research Center Animal Sciences Behavior and Ethology Biodiversity Ecology and Evolutionary Biology Environmental Policy Life Sciences Recreation Parks and Tourism Administration Terrestrial and Aquatic Ecology text 1999 ftunivnebraskali 2023-10-30T11:41:14Z 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). Peu d’études ont abordé la question de la régurgitation en relation avec les soins parentaux et alloparentaux au sein des familles chez les canidés monogames. Nous avons étudié le transfert de la nourriture par régurgitation au sein d’une meute de loups de l’île d’Ellesmere, Territoires du Nord-Ouest, Canada, durant six étés, de 1988 à la fin de 1996. Tous les loups adultes, y compris les jeunes de 1 an et les femelles post-parturientes, régurgitaient de la nourriture. Certains individus régurgitaient jusqu’à 5 fois par épisode, mais, dans l’ensemble, le nombre de régurgitations par épisode était de 1,5. Les petits étaient plus susceptibles de recevoir des régurgitations (81%) que les femelles reproductrices (14%) ou les auxiliaires (6%). Les mâles reproducteurs régurgitaient à leur partenaire et à leurs petits et les femelles reproductrices régurgitaient surtout à leurs petits. L’effort relatif des femelles était en corrélation avec le nombre de petits dans leur portée (τ de Kendall = 0,93, P = 0,01). Text Ellesmere Island Territoires du Nord-Ouest University of Nebraska-Lincoln: DigitalCommons@UNL Ellesmere Island Canada Kendall ENVELOPE(-59.828,-59.828,-63.497,-63.497)
institution Open Polar
collection University of Nebraska-Lincoln: DigitalCommons@UNL
op_collection_id ftunivnebraskali
language unknown
topic Animal Sciences
Behavior and Ethology
Biodiversity
Ecology and Evolutionary Biology
Environmental Policy
Life Sciences
Recreation
Parks and Tourism Administration
Terrestrial and Aquatic Ecology
spellingShingle Animal Sciences
Behavior and Ethology
Biodiversity
Ecology and Evolutionary Biology
Environmental Policy
Life Sciences
Recreation
Parks and Tourism Administration
Terrestrial and Aquatic Ecology
Mech, L. David
Wolf, Paul C.
Packard, Jane M.
Regurgitative food transfer among wild wolves
topic_facet Animal Sciences
Behavior and Ethology
Biodiversity
Ecology and Evolutionary Biology
Environmental Policy
Life Sciences
Recreation
Parks and Tourism Administration
Terrestrial and Aquatic Ecology
description 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). Peu d’études ont abordé la question de la régurgitation en relation avec les soins parentaux et alloparentaux au sein des familles chez les canidés monogames. Nous avons étudié le transfert de la nourriture par régurgitation au sein d’une meute de loups de l’île d’Ellesmere, Territoires du Nord-Ouest, Canada, durant six étés, de 1988 à la fin de 1996. Tous les loups adultes, y compris les jeunes de 1 an et les femelles post-parturientes, régurgitaient de la nourriture. Certains individus régurgitaient jusqu’à 5 fois par épisode, mais, dans l’ensemble, le nombre de régurgitations par épisode était de 1,5. Les petits étaient plus susceptibles de recevoir des régurgitations (81%) que les femelles reproductrices (14%) ou les auxiliaires (6%). Les mâles reproducteurs régurgitaient à leur partenaire et à leurs petits et les femelles reproductrices régurgitaient surtout à leurs petits. L’effort relatif des femelles était en corrélation avec le nombre de petits dans leur portée (τ de Kendall = 0,93, P = 0,01).
format Text
author Mech, L. David
Wolf, Paul C.
Packard, Jane M.
author_facet Mech, L. David
Wolf, Paul C.
Packard, Jane M.
author_sort Mech, L. David
title Regurgitative food transfer among wild wolves
title_short Regurgitative food transfer among wild wolves
title_full Regurgitative food transfer among wild wolves
title_fullStr Regurgitative food transfer among wild wolves
title_full_unstemmed Regurgitative food transfer among wild wolves
title_sort regurgitative food transfer among wild wolves
publisher DigitalCommons@University of Nebraska - Lincoln
publishDate 1999
url https://digitalcommons.unl.edu/usgsnpwrc/380
https://digitalcommons.unl.edu/context/usgsnpwrc/article/1392/viewcontent/Mech_CJZ_1999_Regurgitative_food_transfer.pdf
long_lat ENVELOPE(-59.828,-59.828,-63.497,-63.497)
geographic Ellesmere Island
Canada
Kendall
geographic_facet Ellesmere Island
Canada
Kendall
genre Ellesmere Island
Territoires du Nord-Ouest
genre_facet Ellesmere Island
Territoires du Nord-Ouest
op_source USGS Northern Prairie Wildlife Research Center
op_relation https://digitalcommons.unl.edu/usgsnpwrc/380
https://digitalcommons.unl.edu/context/usgsnpwrc/article/1392/viewcontent/Mech_CJZ_1999_Regurgitative_food_transfer.pdf
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