Dr Amy Leedale A.E.Leedale@salford.ac.uk
Lecturer
Dr Amy Leedale A.E.Leedale@salford.ac.uk
Lecturer
M Simeoni
SP Sharp
JP Green
J Slate
RF Lachlan
EJH Robinson
BJ Hatchwell
Inbreeding is often avoided in natural populations by passive processes such as sex-biased dispersal. But, in many social animals, opposite-sexed adult relatives are spatially clustered, generating a risk of incest and hence selection for active inbreeding avoidance. Here we show that, in long-tailed tits (Aegithalos caudatus), a cooperative breeder that risks inbreeding by living alongside opposite-sex relatives, inbreeding carries fitness costs and is avoided by active kin discrimination during mate choice. First, we identified a positive association between heterozygosity and fitness, indicating that inbreeding is costly. We then compared relatedness within breeding pairs to that expected under multiple mate-choice models, finding that pair relatedness is consistent with avoidance of first-order kin as partners. Finally, we show that the similarity of vocal cues offers a plausible mechanism for discrimination against first-order kin during mate choice. Long-tailed tits are known to discriminate between the calls of close kin and nonkin, and they favor first-order kin in cooperative contexts, so we conclude that long-tailed tits use the same kin discrimination rule to avoid inbreeding as they do to direct help toward kin.
Journal Article Type | Article |
---|---|
Publication Date | Jun 22, 2020 |
Deposit Date | Dec 6, 2022 |
Publicly Available Date | Dec 6, 2022 |
Journal | Proceedings of the National Academy of Sciences |
Print ISSN | 0027-8424 |
Publisher | National Academy of Sciences |
Volume | 117 |
Issue | 27 |
Pages | 15724-15730 |
DOI | https://doi.org/10.1073/pnas.1918726117 |
Publisher URL | https://doi.org/10.1073/pnas.1918726117 |
Published Version
(801 Kb)
PDF
Version
Published under the PNAS license.
Accepted Version
(510 Kb)
PDF
Licence
http://creativecommons.org/licenses/by-nc/4.0/
Publisher Licence URL
http://creativecommons.org/licenses/by-nc/4.0/
Kin recognition for incest avoidance in Damaraland mole-rats, Fukomys damarensis
(2024)
Journal Article
Evidence for inbreeding depression in captive Damaraland mole-rats.
(2024)
Journal Article
The Evolution of Kin Discrimination Across the Tree of Life
(2024)
Journal Article
Impacts of anthropogenic sounds on bird call activities: A case study in Aachen, Germany
(2023)
Presentation / Conference Contribution
About USIR
Administrator e-mail: library-research@salford.ac.uk
This application uses the following open-source libraries:
Apache License Version 2.0 (http://www.apache.org/licenses/)
Apache License Version 2.0 (http://www.apache.org/licenses/)
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2025
Advanced Search