Role of green veining to sustain biodiversity in agricultural landscapes
2001
Aviron, Stéphanie | Burel, Françoise | Unité de recherche SAD Armorique (AMORIQUE) ; Institut National de la Recherche Agronomique (INRA) | Ecosystèmes, biodiversité, évolution [Rennes] (ECOBIO) ; Université de Rennes (UR)-Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS) ; Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des sciences de l'environnement de Rennes (OSERen) ; Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
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Show more [+] Less [-]English. Influence of land use intensification and green veining reduction on biodiversity (birds, small mammals, carabid beetles) was investigated in three agricultural landscapes of Western France. Land use intensification induced a fragmentation of green veining but it was not associated to a loss of habitat heterogeneity. There was no simple response of species to such modifications. Passerine birds and small mammals were mainly sensitive to the total amount of green veining, that a shift from forest specialist to open habitats species for birds and a growing disequilibria of small mammal communities. Carabid beetles seemed to respond to the decrease of green veining heterogeneity, which induced a replacement of woody species by more common open field species. Our results show that both amount and diversity of green veining should be considered in management plans for the conservation of biodiversity in agricultural landscapes.
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