Facial reconstruction

Search LJMU Research Online

Browse Repository | Browse E-Theses

Selection of both habitat and genes in specialized and endangered caribou

Cavedon, M, vonHoldt, B, Hebblewhite, M, Hegel, T, Heppenheimer, E, Hervieux, D, Mariani, S, Schwantje, H, Steenweg, R, Watters, M and Musiani, M (2022) Selection of both habitat and genes in specialized and endangered caribou. Conservation Biology. ISSN 0888-8892

Conservation Biology - 2022 - Cavedon - Selection of both habitat and genes in specialized and endangered caribou.pdf - Accepted Version

Download (2MB) | Preview


Genetic mechanisms determining habitat selection and specialization of individuals within species have been hypothesized, but not tested at the appropriate individual level in nature. In this work, we analyzed habitat selection for 139 GPS-collared caribou belonging to three declining ecotypes sampled throughout Northwestern Canada. We used Resource Selection Functions (RSFs) comparing resources at used and available locations. We found that the three caribou ecotypes differed in their use of habitat suggesting specialization. On expected grounds, we also found differences in habitat selection between summer and winter, but also, originally, among the individuals within an ecotype. We next obtained Single Nucleotide Polymorphisms (SNPs) for the same caribou individuals, we detected those associated to habitat selection, and then identified genes linked to these SNPs. These genes had functions related in other organisms to habitat and dietary specializations, and climatic adaptations. We therefore suggest that individual variation in habitat selection was based on genotypic variation in the SNPs of individual caribou, indicating that genetic forces underlie habitat and diet selection in the species. We also suggest that the associations between habitat and genes that we detected may lead to lack of resilience in the species, thus contributing to caribou endangerment. Our work emphasizes that similar mechanisms may exist for other specialized, endangered species.

Item Type: Article
Additional Information: This is the peer reviewed version of the following article: Cavedon, M., vonHoldt, B., Hebblewhite, M., Hegel, T., Heppenheimer, E., Hervieux, D., Mariani, S., Schwantje, H., Steenweg, R., Watters, M. and Musiani, M. (2022), Selection of both habitat and genes in specialized and endangered caribou. Conservation Biology. Accepted Author Manuscript., which has been published in final form at https://doi.org/10.1111/cobi.13900. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. 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.
Uncontrolled Keywords: 05 Environmental Sciences, 06 Biological Sciences, 07 Agricultural and Veterinary Sciences
Subjects: Q Science > QH Natural history
Q Science > QL Zoology
Divisions: Biological & Environmental Sciences (from Sep 19)
Publisher: Wiley
Date Deposited: 18 Feb 2022 12:30
Last Modified: 26 Apr 2023 00:50
DOI or ID number: 10.1111/cobi.13900
URI: https://researchonline.ljmu.ac.uk/id/eprint/16349
View Item View Item