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.

Compensatory recruitment allows amphibian population persistence in anthropogenic habitats / H. Cayuela, B. Monod-Broca, J.-. Lemaitre, A. Besnard, J.M.W. Gippet, B.R. Schmidt, A. Romano, T. Hertach, C. Angelini, S. Canessa, G. Rosa, L. Vignoli, A. Venchi, M. Carafa, F. Giachi, A. Tiberi, A.M. Hantzschmann, U. Sinsch, E. Tournier, E. Bonnaire, G. Gollmann, B. Gollmann, A. Spitzen-Van der Sluijs, H. Buschmann, T. Kinet, A. Laudelout, R. Fonters, Y. Bunz, M. Corail, C. Biancardi, A.R. Di Cerbo, D. Langlois, J.-. Thirion, L. Bernard, E. Boussiquault, F. Dore, T. Leclerc, N. Enderlin, F. Laurenceau, L. Morin, M. Skrzyniarz, M. Barrioz, Y. Morizet, S.S. Cruickshank, J. Pichenot, A. Maletzky, T. Delsinne, D. Henseler, D. Aumaitre, M. Gailledrat, J. Moquet, R. Veen, P. Krijnen, L. Riviere, M. Trenti, S. Endrizzi, P. Pedrini, M. Biaggini, S. Vanni, D. Dudgeon, J.-. Gaillard, J.-. Lena. - In: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA. - ISSN 0027-8424. - 119:38(2022 Sep 20), pp. e2206805119.1-e2206805119.9. [10.1073/pnas.2206805119]

Compensatory recruitment allows amphibian population persistence in anthropogenic habitats

S. Canessa;
2022

Abstract

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.
amphibians; global change; recruitment; senescence; survival;
Settore BIO/05 - Zoologia
20-set-2022
12-set-2022
Article (author)
File in questo prodotto:
File Dimensione Formato  
Cayuelaetal_2022_Compensatory recruitment in Bombina.pdf

accesso aperto

Tipologia: Publisher's version/PDF
Dimensione 2.09 MB
Formato Adobe PDF
2.09 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/1028829
Citazioni
  • ???jsp.display-item.citation.pmc??? 3
  • Scopus 10
  • ???jsp.display-item.citation.isi??? 11
social impact