La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Nest habitat use of the Puerto Rican Nightjar Caprimulgus noctitherus in Guanica Biosphere Reserve
Auteurs :	Francisco J. Vilella, Auteur
Type de document :	Article
Dans :	Bird Conservation International (18(4) DEC 2008)
Article en page(s) :	307-317
Langues:	Anglais
Résumé :	The Puerto Rican Nightjar Caprimulgus noctitherus is a 'Critically Endangered' caprimulgid endemic to coastal dry and lower montane forests of southwest Puerto Rico. I studied nest habitat use of this nightjar at the Guanica Biosphere Reserve in southwestern Puerto Rico. Nightjar nests (n = 23) were located in evergreen and deciduous forest and were more common at elevations above 100 m. Nests were located from 2 m to 125 in into the forest from the nearest road or trail and were characterised by a deep layer of leaf litter, and an open midstorey beneath a closed canopy. Six of the to nests found in evergreen forest were located within abandoned mahogany (Sweetenia mahogany) plantations. Habitat structure and vegetation composition were quantified at each nightjar nest and an equivalent number of randomly selected sites. Four of 13 habitat variables differed significantly (P

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