Bibliothèque Tour du Valat

Se connecter

Mot de passe oublié ?
Pas encore inscrit ?

La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Détail

Ajouter au panier

Ajouter au panier

Lien vers la notice

Titre :	Ranging behaviour of greater flamingos during the breeding and post-breeding periods: Linking connectivity to biological processes (2005)
Titre original:	Ranging behaviour of greater flamingos during the breeding and post-breeding periods
Auteurs :	Juan A. Amat, Auteur ; Miguel A. Rendon, Auteur ; Manuel Rendón-Martos, Auteur ; Araceli Garrido, Auteur ; Jose M. Ramirez, Auteur
Type de document :	Article
Dans :	Biological Conservation (125(2) September, 2005)
Article en page(s) :	183-192
Langues:	Anglais
Mots-clés:	Connectedness thresholds ; Flamingos ; Functional connectivity ; Mediterranean wetlands ; Stopover sites ; Waterbirds ; Wetland connectivity
Résumé :	Connectivity among habitat patches has mainly been studied in relation to species-specific behaviours. However, the movements of animals among patches may have different functions, and tolerance to gaps between habitat patches may vary between these functions. We tracked the movements of greater flamingos during the breeding and post-breeding periods with the aim of illustrating how the degree of connectivity may vary depending on the biological processes underlying the movements between wetlands. Most foraging sites used by breeding adults in a colony in southern Spain were within 200km of the colony site, although some birds eventually moved 400km. After the breeding season, the adults remained for several weeks in specific wetlands, moving to other sites located 280–2100km away to overwinter. During these movements the birds may use stopover sites, the conservation of which may be critical to facilitate long-range movements. Our results suggest that wetland connectivity during chick rearing does not seem to be determined by whether or not central-place foraging flamingos are able to reach wetlands located at the longest distance that they are able to fly during non-stop flights (>1000km), but by whether they are able to sustain the energetic costs derived from frequent commuting. In contrast, long-distance movements were occasionally undertaken during the post-breeding period. The energetic costs of such flights could be paid by flamingos because these movements were infrequent. Thus, in the case of flamingos, connectedness thresholds between wetlands vary depending on the biological process involved (chick rearing or post-breeding movements). This emphasizes the need to consider different types of connectivity in conservation planning.
En ligne :	http://www.sciencedirect.com/science/article/pii/S0006320705001436

FAQ

Infos pratiques

Heures d'ouverture et contact

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

Liens utiles

A-
A
A+