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The use of rice fields by wintering ducks : towards mutual benefits for ducks and farmers

Abstract : Rice fields provide foraging habitat to waterfowl during migration, breeding and wintering seasons. In the latter case, food availability (waste rice, weed seeds or invertebrates) seems to be strongly influenced by post-harvest agricultural practices. This project aims at testing alternative post-harvest practices to the traditional burning-mowing in the Camargue in order to assess their consequences in terms of food availability and field use by wintering ducks. Different post-harvest treatments (flooding, burning, mowing, disking and their combinations) were conducted. The amount of seeds (rice + weeds) available through time was assessed, from harvest in Sept-Oct until March, and duck use of these fields during the day and during the night was simultaneously monitored. In parallel, we studied potential agronomic benefit of specific post harvest practices and we searched a mutually beneficial solution that provides needed wintering ducks habitat and is acceptable to rice farmers with limited costs.
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Submitted on : Wednesday, January 17, 2018 - 4:36:08 PM
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Claire Pernollet. The use of rice fields by wintering ducks : towards mutual benefits for ducks and farmers. Ecosystems. Université Montpellier, 2016. English. ⟨NNT : 2016MONTT162⟩. ⟨tel-01686729⟩

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