La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Consequences of artificial nest use by the Peregrine Falcon Falco peregrinus in the Jura range (2015)
Auteurs :	Rene-Jean Monneret, Auteur ; Marc Kéry, Auteur ; Michael Coeurdassier, Auteur ; Jean-Yves Cretin, Auteur ; David Parish, Auteur ; Jean-Pierre Herold, Auteur ; Rene Ruffinoni, Auteur
Type de document :	Article
Dans :	Alauda (83(2) 2015)
Article en page(s) :	133-142
Résumé :	The drop in productivity and the declining trend of the regional Peregrine population have various causes. One of them, human incursions into the rocky habitats naturally protected in the past, is playing an increasing role. With the aim of accelerating the comeback of the species, the building of artificial eyries and artificializing of natural eyries began in the early 1980s. Thereafter, it also acted to offset the negative impacts of anthropic disturbances. In 1984 two hundred and thirty one eyries (231) were enhanced by artificial means, the first of which were occupied in 1986. Following 423 nesting episodes, these "modified" eyries produced 822 fledglings. During the same period, 3.68 natural eyries produced 4.65 fledged young. Statistical analysis using the generalized linear model demonstrates that artificially enhanced eyries are significantly more productive than natural eyries, producing 2.20 young per 'breeding pair compared with 1.85 in natural sites.

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