TW22P6HL

3678

3 mai 2021 14:34

3 mai 2021 14:41

Conserving functionally diverse bird communities in European farmland is becoming critical, with no exception for regions of wine production. Management intensification combined with the loss of semi-natural habitats in wine-growing landscapes has led to a long-term decline in birds of conservation concern, but also in once common insectivores and seed eaters. These declines are expected to threaten key ecological services provided by vineyard birds, such as pest or weed control, but also their cultural significance. We analyzed how organic management and landscape heterogeneity affected taxonomic and functional diversity of 334 bird communities from 12 regions of the three main wine-producing European countries (France, Italy and Spain). We further modelled the responses of community-level metrics measuring mean habitat specialization and bird song attractiveness to humans, as well as cumulative abundances of functional insectivores, seed and grape eaters to account for individual avian functions. We found that organic viticulture enhanced bird functional diversity and individual functions, but that its positive effect partially depended on grass cover management in the inter-rows and landscape heterogeneity. Woodland cover and landscape compositional heterogeneity increased both taxonomic and functional diversity of bird communities, as well as functional insectivory. Landscape configurational heterogeneity also increased functional diversity and mean song attractiveness of bird communities. Overall, both bird diversity and functions were enhanced by higher landscape heterogeneity, especially in organic vineyards. However, mean habitat specialization decreased with woodland cover and configurational heterogeneity, meaning that open habitat specialists preferred more even landscapes with high vineyard cover. Synthesis and applications. Our study highlights the benefits of combining organic management and partial grass cover at the field level and promoting interfaces between vineyards and semi-natural habitats at the landscape level to sustain multifunctional bird communities in wine-producing European countries.

None

• AB - Spécifique
• FREDO environnement
• GEO Europe
• GEO France
• landscape
• vignoble
• vin
• vineyards
• viticulture

• bird cultural significance
• bird functions
• compositional heterogeneity
• configurational heterogeneity
• functional diversity
• grass cover
• landscape diversity
• song attractiveness

Journal of Applied Ecology

n/a

18/04/2021

18 avril 2021

https://doi.org/10.1111/1365-2664.13885 Le DOI est une URL unique de référencement d'une publication. Il est donc plus fiable et permanent qu'une URL classique

1365-2664 L’ISSN est un code de 8 chiffres servant à identifier les journaux, revues, magazines, périodiques de toute nature et sur tous supports, papier comme électronique.