Effects of home range size and burrow fidelity on survival and reproduction in eastern chipmunks (Tamias striatus) across different environmental contexts.

Autor: Brownlee MB; Département de Biologie, Université de Sherbrooke, Sherbrooke, Québec, Canada. megan.brownlee@usherbrooke.ca., Bergeron P; Department of Biology and Biochemistry, Bishop's University, Sherbrooke, Québec, Canada., Réale D; Département des Sciences Biologiques, Université du Québec à Montréal, Montréal, Québec, Canada., Garant D; Département de Biologie, Université de Sherbrooke, Sherbrooke, Québec, Canada.
Jazyk: angličtina
Zdroj: Oecologia [Oecologia] 2024 Dec 07; Vol. 207 (1), pp. 5. Date of Electronic Publication: 2024 Dec 07.
DOI: 10.1007/s00442-024-05649-1
Abstrakt: Survival and reproductive success are greatly influenced by how an individual uses its surrounding environment, which can differ across spatial scales. To better understand the habitat-fitness relationships of animals, it is essential to study space use at multiple spatial scales. Here, we used 13 years of capture-mark-recapture and burrow location data to investigate how two different aspects of space use influence the survival and female reproduction in a wild population of eastern chipmunks (Tamias striatus) in southern Québec. We quantified home range size and site fidelity in a population experiencing massive inter-annual variations in food availability due to the masting of American beech trees (Fagus grandifolia). We found that site fidelity tended to increase the probability of reproduction but that this effect was strongly dependent on the context of beech seed production: probability of reproduction was higher for females that were faithful from a mast year to the following non-mast year. Site fidelity was not related to survival and we found no significant effect of home range size on either fitness trait. Our results indicate that, in our study system, different aspects of space use affect fitness traits in different ways. We emphasize the importance of examining multiple spatial scales in related analyses.
Competing Interests: Declarations. Conflict of interest: The authors declare that they have no conflict of interest. Ethical approval: Animals were captured and handled in compliance with the Canadian Council on Animal Care, under the approval of the Animal Ethics Committee (Université du Québec à Montréal (CIPA 0603–462-0607), Université de Sherbrooke (2019–2182), and Bishop’s University (102258). Consent to participate: NA. Consent for publication: NA.
(© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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