La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Breeding success of a subtropical Little Tern, Sternula albifrons sinensis, colony (2016)
Auteurs :	Jason B. Searle, Auteur ; J. Blair Prince, Auteur ; David Stewart, Auteur ; Penn Lloyd, Auteur
Type de document :	Article
Dans :	Emu - Austral Ornithologie (116(1) 2016)
Article en page(s) :	81-85
Mots-clés:	annual productivity ; chick survival ; clutch size ; nest success ; predation.
Résumé :	Monitoring of breeding success is important for the effective management of beach-nesting shorebirds, which are vulnerable to impacts of human recreational disturbance and predation by introduced or superabundant native predators. We examined the breeding success of a recently established nesting colony of Little Tern (Sternula albifrons sinensis) on a coastal sandspit in south-east Queensland that is exposed to increasing human recreational use but limited management. Nesting success averaged 36% (15–51%) over 3 years, with sand burial and tidal flooding responsible for most clutch mortality. Annual chick survival from hatching to fledging averaged 41% (26–67%), and annual productivity averaged 0.66 fledglings per pair (0.31–1.24). Annual productivity was lower than at intensively managed Little Tern nesting colonies in New South Wales and Victoria; however, with minimum annual productivity required to maintain a stable population estimated at ~0.50 fledglings per pair, the population is expected to be increasing.
En ligne :	http://dx.doi.org/10.1071/MU15062

Lundi , mardi et jeudi de 9h à 12h et de 13h à 17h00 : ouverture au public ...