Compensatory recruitment allows amphibian population persistence in anthropogenic habitats.

Cayuela, Hugo; Monod-Broca, Benjamin; Lemaître, Jean-François; Besnard, Aurélien; Gippet, Jérôme M W; Schmidt, Benedikt R; Romano, Antonio; Hertach, Thomas; Angelini, Claudio; Canessa, Stefano; Rosa, Giacomo; Vignoli, Leonardo; Venchi, Alberto; Carafa, Marco; Giachi, Filippo; Tiberi, Andrea; Hantzschmann, Alena M; Sinsch, Ulrich; Tournier, Emilie; Bonnaire, Eric; ... (2022). Compensatory recruitment allows amphibian population persistence in anthropogenic habitats. Proceedings of the National Academy of Sciences of the United States of America - PNAS, 119(38), e2206805119. National Academy of Sciences NAS 10.1073/pnas.2206805119

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Habitat anthropization is a major driver of global biodiversity decline. Although most species are negatively affected, some benefit from anthropogenic habitat modifications by showing intriguing life-history responses. For instance, increased recruitment through higher allocation to reproduction or improved performance during early-life stages could compensate for reduced adult survival, corresponding to "compensatory recruitment". To date, evidence of compensatory recruitment in response to habitat modification is restricted to plants, limiting understanding of its importance as a response to global change. We used the yellow-bellied toad (Bombina variegata), an amphibian occupying a broad range of natural and anthropogenic habitats, as a model species to test for and to quantify compensatory recruitment. Using an exceptional capture-recapture dataset composed of 21,714 individuals from 67 populations across Europe, we showed that adult survival was lower, lifespan was shorter, and actuarial senescence was higher in anthropogenic habitats, especially those affected by intense human activities. Increased recruitment in anthropogenic habitats fully offset reductions in adult survival, with the consequence that population growth rate in both habitat types was similar. Our findings indicate that compensatory recruitment allows toad populations to remain viable in human-dominated habitats and might facilitate the persistence of other animal populations in such environments.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE)

UniBE Contributor:

Canessa, Stefano

Subjects:

500 Science > 570 Life sciences; biology

ISSN:

0027-8424

Publisher:

National Academy of Sciences NAS

Language:

English

Submitter:

Pubmed Import

Date Deposited:

14 Sep 2022 09:18

Last Modified:

05 Dec 2022 16:24

Publisher DOI:

10.1073/pnas.2206805119

PubMed ID:

36095177

Uncontrolled Keywords:

amphibians global change recruitment senescence survival

BORIS DOI:

10.48350/172881

URI:

https://boris.unibe.ch/id/eprint/172881

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