La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	The influence of ENSO and rainfall on the numbers of breeding pairs in a woodland bird community from south-eastern Australia (2016)
Auteurs :	R. Marchant, Auteur ; S. Guppy, Auteur ; M. Guppy, Auteur
Type de document :	Article
Dans :	Emu - Austral Ornithologie (116(3) 2016)
Article en page(s) :	254-261
Mots-clés:	SOI. ; change in numbers of breeding pairs ; rainfall during breeding
Résumé :	Climate and rainfall in southern Australia are strongly influenced by the El Nino–Southern Oscillation (ENSO) phenomenon. If breeding of forest birds is related to rainfall, then ENSO may influence fluctuations in breeding activity. We recorded the numbers of breeding pairs of 17 species over 17 years on a 10 ha forest plot near Moruya, NSW, in order to evaluate the influence of ENSO (as measured by the Southern Oscillation Index, SOI) and rainfall on yearly changes in breeding activity. The mean SOI for the months April–July immediately before the breeding season (August–January) was strongly correlated with the change in number of breeding pairs (D) from year to year: r = 0.82, P 300 mm rainfall during breeding and a positive D value; a negative SOI resulted in
En ligne :	http://dx.doi.org/10.1071/MU15087

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