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Stratégies d’utilisation des sols agricoles pour concilier production et oiseaux spécialistes des milieux agricoles

Abstract : Agricultural expansion and intensification have disastrous consequences on biodiversity. Studying the relationship between biodiversity and food production can help devise appropriate measures.The objective of this work was to reveal land use strategies to halt the decline of farmland birds while maintaining agricultural production.Our work was based on the study of correlations between agricultural land use, food production, and various bird community descriptors across French agroecosystems.In high crop production regions, we observed low-diversity communities dominated by few arable specialist species. In high livestock production regions, we observed communities dominated by generalist bird species. The land-use strategy that maximized the Farmland Bird Index under crop and livestock production constraints involved a decrease of crop intensity in the most intensive crop regions and an increase of livestock intensity in the most intensive livestock regions. Extensive livestock production was reinforced in current extensive areas.Our results have shown that different strategies are needed in crop-dominated and in livestock dominated regions.
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https://tel.archives-ouvertes.fr/tel-01467938
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Submitted on : Thursday, April 26, 2018 - 12:29:06 PM
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  • HAL Id : tel-01467938, version 2

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Camille Dross. Stratégies d’utilisation des sols agricoles pour concilier production et oiseaux spécialistes des milieux agricoles. Ecologie, Environnement. Université Paris Saclay (COmUE), 2016. Français. ⟨NNT : 2016SACLA028⟩. ⟨tel-01467938v2⟩

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