La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	The influence of macrophyte beds on ducks breeding on fishponds of the Dombes region, France
Auteurs :	Joël Broyer, Auteur ; Laurence Curtet, Auteur
Type de document :	Article
Dans :	Wildfowl (60 2010)
Article en page(s) :	136-149
Langues:	Anglais
Résumé :	Densities of duck pairs and females with broods were highest when macrophyte coverage was between 21% and 40% of total pond area amongst a sample of 80 artificially managed fishponds in the Dombes region of eastern France. Nesting success (brood : pair ratio) and numbers of ducklings in 3-week old Pochard Aytlya ferina broods were greater on these types of ponds than those with macrophyte cover of = 40% of pond area. Significantly higher invertebrate biomass densities were observed in filamentous algae than in all other submerged macrophyte species inspected in this study.

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