La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Testing the importance of nest concealment: does timing matter?
Auteurs :	Jorge H. Vega Rivera, Auteur ; Irais Medina Montano, Auteur ; John Rappole, Auteur ; Felipe Campos Cerda, Auteur
Type de document :	Article
Dans :	Journal of Field Ornithology (80(3) SEP 2009)
Article en page(s) :	303-307
Langues:	Anglais
Résumé :	Nest concealment by vegetation is considered an important factor affecting predation rates for many passerines and, therefore, is frequently measured in studies examining nest predation. However, the time when concealment measurements are made may affect the results of such studies, particularly in highly seasonal ecosystems where characteristics of the vegetation later in the breeding period may differ considerably from those at the time of nest-site selection. We used artificial nests baited with quail (Coturnix sp.) eggs in a highly seasonal tropical dry forest in Jalisco, western Mexico, to test the effects of seasonal change in concealment on nest predation. We placed

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