Habitat use, survival, and migration of a little-known East Asian endemic, the yellow-throated bunting Emberiza elegans.
Détails
Télécharger: 37153014_BIB_53DD873CFCE8.pdf (976.63 [Ko])
Etat: Public
Version: Final published version
Licence: CC BY 4.0
Etat: Public
Version: Final published version
Licence: CC BY 4.0
ID Serval
serval:BIB_53DD873CFCE8
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Habitat use, survival, and migration of a little-known East Asian endemic, the yellow-throated bunting Emberiza elegans.
Périodique
Ecology and evolution
ISSN
2045-7758 (Print)
ISSN-L
2045-7758
Statut éditorial
Publié
Date de publication
05/2023
Peer-reviewed
Oui
Volume
13
Numéro
5
Pages
e10030
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: epublish
Publication Status: epublish
Résumé
Basic information on the ecology of species is key for their conservation. Here we study the ecology of the little-known yellow-throated bunting Emberiza elegans based on a multi-year study on its breeding grounds in the Russian Far East. For the first time in this species, we quantified breeding habitat parameters, calculated sex-specific apparent survival, and determined individual nonbreeding locations using light-level geolocation. We found that the habitat around song posts of male yellow-throated buntings is characterized by tree and shrub layers on richly littered moist ground. Habitat use overlaps with co-occurring Tristram's Buntings Emberiza tristrami and Black-faced Buntings E. spodocephala, but territories differ especially in tree cover and litter cover. Based on 4 years of color-ringing data of 72 individuals, we calculated an apparent survival rate of 36%, with higher survival estimates for male than for female yellow-throated buntings. We found no effect of carrying a geolocator on survival. We retrieved six geolocators from males. All birds migrated south-westward during autumn and spent the nonbreeding season at locations in China 700-1700 km away from their breeding sites. At least two individuals spent the boreal winter outside of the known range in northern or central China. Birds left the breeding area between early October and early November and returned between mid-March and mid-April. Our data on habitat use, survival rate, and migratory connectivity will help to assess threats to the populations of this enigmatic species, which might include habitat loss due to forest fires on the breeding grounds, and unsustainable harvest for consumption during the nonbreeding season.
Mots-clé
East Asian flyway, color‐ringing, forest, full‐cycle ecology, geolocation, migratory connectivity, tracking
Pubmed
Web of science
Open Access
Oui
Création de la notice
15/05/2023 12:47
Dernière modification de la notice
08/08/2024 6:33