Male vocalizations convey information on kinship and inbreeding in a lekking bird.

Autor: Cornec C; Institut des Neurosciences Paris-Saclay Université Paris-Sud, CNRS (UMR 9197) Orsay France.; Emirates Center for Wildlife Propagation Missour Morocco., Robert A; Centre d'Ecologie et des Sciences de la Conservation (CESCO), Muséum national d'Histoire naturelle, Centre National de la Recherche Scientifique Sorbonne-Université Paris France., Rybak F; Institut des Neurosciences Paris-Saclay Université Paris-Sud, CNRS (UMR 9197) Orsay France., Hingrat Y; Reneco International Wildlife Consultants LLC Abu Dhabi UAE.
Jazyk: angličtina
Zdroj: Ecology and evolution [Ecol Evol] 2019 Mar 28; Vol. 9 (8), pp. 4421-4430. Date of Electronic Publication: 2019 Mar 28 (Print Publication: 2019).
DOI: 10.1002/ece3.4986
Abstrakt: Kinship and inbreeding are two major components involved in sexual selection and mating system evolution. However, the mechanisms underlying recognition and discrimination of genetically related or inbred individuals remain unclear. We investigated whether kinship and inbreeding information is related to low-frequency vocalizations, "booms," produced by males during their courtship in the lekking houbara bustard ( Chlamydotis undulata undulata ). Based on a captive breeding program where the pedigree of all males is known, we investigated the similarity of booms' acoustic parameters among captive males more or less individually inbred and therefore genetically related with each other. In the wild, we investigated the relationship between the spatial distribution of males within leks and the similarity of acoustic parameters of their booms. In the captive population, we found (a) a relationship between the individual inbreeding level of captive males and their vocalization parameters; (b) that kin share similar frequency and temporal characteristics of their vocalizations. In the wild, we found no evidence for spatial structuring of males based on their acoustic parameters, in agreement with previous genetic findings on the absence of kin association within houbara bustard leks. Overall, our results indicate that genetic information potentially related to both the identity and quality of males is contained in their vocalizations.
Competing Interests: The authors declare that they have no conflict of interest.
Databáze: MEDLINE
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