First record of a least weasel in Nunavik

The spatial distributions of several small mammals in Nunavik, Québec, Canada, currently do not rely on any recorded observations due to the rarity of wildlife surveys in that area. This is concerning because understanding changes in wildlife populations in response to the rapidly warming Arctic req...

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Bibliographic Details
Published in:Arctic Science
Main Author: Dominique Fauteux
Format: Article in Journal/Newspaper
Language:English
French
Published: Canadian Science Publishing 2023
Subjects:
Online Access:https://doi.org/10.1139/as-2022-0029
https://doaj.org/article/87af5516f16740babd9c9eb1d301a011
Description
Summary:The spatial distributions of several small mammals in Nunavik, Québec, Canada, currently do not rely on any recorded observations due to the rarity of wildlife surveys in that area. This is concerning because understanding changes in wildlife populations in response to the rapidly warming Arctic requires knowledge of prior population states. On 18 July 2021, my assistant and I captured a least weasel (Mustela nivalis Linnaeus, 1766) alive, 11 km southwest of Salluit during a live-trapping session of lemmings and voles. Identification was done with the small body mass (44 g), the presence of prominent testicles indicating maturity, short length of the tail, and pale colour at the tip of the tail. All these criteria combined fit only the description of least weasels. According to the available records for this species, this observation is the first one confirmed in Nunavik. This Low Arctic area was already included in the species distribution described in the literature, but no record supported it up to now. It is of particular importance considering this species is susceptible to be designated as threatened or vulnerable in the province of Quebec according to the Centre de données sur le patrimoine naturel du Québec.