Investigating potential for competition between migratory caribou and introduced muskoxen

Brodeur, Alexis; Leblond, Mathieu; Brodeur, Vincent; Taillon, Joëlle; Côté, Steeve D.

doi:https://open-science.canada.ca/handle/123456789/2556

Investigating potential for competition between migratory caribou and introduced muskoxen

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dc.contributor.author: Brodeur, Alexis; Leblond, Mathieu; Brodeur, Vincent; Taillon, Joëlle; Côté, Steeve D.
dc.date.accepted: 2022-11-16
dc.date.accessioned: 2024-06-06T20:13:44Z
dc.date.available: 2024-06-06T20:13:44Z
dc.date.issued: 2023-01-24
dc.date.submitted: 2021-11-22
dc.description.abstract - en: Several caribou (<i>Rangifer tarandus</i>) populations co-occur with endemic or introduced populations of muskoxen (<i>Ovibos moschatus</i>), which has led to concerns about the potential competition between the species, especially in regions where the growth of muskoxen populations coincides with caribou declines. We evaluated the potential for competition between migratory caribou and an introduced muskoxen population in northern Québec, Canada, at multiple spatial scales, from 2017 to 2019. We investigated space use and habitat selection patterns of satellite-collared caribou and muskoxen, and analyzed fecal samples using DNA metabarcoding to assess diet overlap. Annual overlap between ranges was low and occurred primarily during caribou spring migrations on the coast of Hudson Bay, and during summer on the coast of Ungava Bay. During spring, muskoxen selected shrub-dominated areas close to the coast, whereas caribou selected rock-substrate tundra and low elevations within their overlapping ranges. Thus, co-occurrence was low and remained limited to the vicinity of the Hudson Bay. In summer, muskoxen selected productive coastal areas and caribou selected erect-shrub tundra; both species selected prostrate-shrub tundra. This led to a higher co-occurrence in the Ungava Bay study area relative to the Hudson Bay study area. We found similarities in the diets of the 2 species at the plant family level, with shrubs being commonly consumed by both species across seasons. We conclude that, at a broad spatial scale, there was limited potential for seasonal space use and diet overlap between caribou and muskoxen in our study area. Still, multiple sources of uncertainty remain such as local impacts of herbivory by muskoxen, demographic and distribution patterns of both species, trophic interactions with predators, shared diseases and parasites, and climate change. These sources of uncertainty could be mitigated through the elaboration of local management plans and community-based monitoring.
dc.description.fosrcfull - en: This is the peer reviewed version of the following article: Brodeur, A., M. Leblond, V. Brodeur, J. Taillon, and S. D. Côté. 2023. Investigating potential for competition between migratory caribou and introduced muskoxen. Journal of Wildlife Management 87:e22366. https://doi.org/10.1002/jwmg.22366, which has been published in final form at <a href="https://doi.org/10.1002/jwmg.22366">https://doi.org/10.1002/jwmg.22366</a> . This article may be used for non-commercial purposes in accordance with <a href="https://authorservices.wiley.com/author-resources/Journal-Authors/licensing/self-archiving.html">Wiley Terms and Conditions for Use of Self-Archived Versions,</a>. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
dc.description.fosrcfull-fosrctranslation - fr: Ceci est la version révisée par les pairs de l'article suivant : Brodeur, A., M. Leblond, V. Brodeur, J. Taillon, and S. D. Côté. 2023. Investigating potential for competition between migratory caribou and introduced muskoxen. Journal of Wildlife Management 87:e22366. https://doi.org/10.1002/jwmg.22366, qui a été publié sous sa forme finale à <a href="https://doi.org/10.1002/jwmg.22366">https://doi.org/10.1002/jwmg.22366</a>. Cet article peut être utilisé à des fins non commerciales conformément aux <a href="https://authorservices.wiley.com/author-resources/Journal-Authors/licensing/self-archiving.html">conditions générales d'utilisation des versions auto-archivées de Wiley</a> (en anglais seulement). Cet article ne peut être amélioré, enrichi ou transformé en une œuvre dérivée sans l'autorisation formelle de Wiley ou sans les droits prévus par la législation en vigueur. Les avis de droit d'auteur ne doivent pas être supprimés, masqués ou modifiés. L'article doit être lié à la version publiée de Wiley sur Wiley Online Library et il est interdit à des tiers d'incorporer, d'encadrer ou de mettre à disposition l'article ou des pages de celui-ci à partir de plates-formes, de services et de sites web autres que Wiley Online Library.
dc.identifier.issn: 1937-2817; 0022-541X
dc.identifier.uri: https://open-science.canada.ca/handle/123456789/2556
dc.language.iso: en
dc.publisher: Wiley
dc.relation.isreplacedby: https://doi.org/10.1002/jwmg.22366
dc.rights.openaccesslevel - en: Green
dc.rights.openaccesslevel - fr: Vert
dc.subject - en: Biological diversity; Nature and environment
dc.subject - fr: Diversité biologique; Nature et environnement
dc.subject.en - en: Biological diversity; Nature and environment
dc.subject.fr - fr: Diversité biologique; Nature et environnement
dc.title - en: Investigating potential for competition between migratory caribou and introduced muskoxen
dc.type - en: Accepted manuscript
dc.type - fr: Manuscrit accepté
local.article.journalissue: 3
local.article.journaltitle: The Journal of Wildlife Management
local.article.journalvolume: 87
local.pagination: 55 pages
local.peerreview - en: Yes
local.peerreview - fr: Oui

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