ORCA - Une analyse comparative de l’influence de l’agriculture biologique et conventionelle sur la biodiversité aquatique

The ORCA project aims to investigate the combined effects of agriculture type (organic versus conventional) and land use intensity (cropland versus grassland) on aquatic biodiversity in ponds and shallow lakes. More specifically, we will (1) assess biodiversity of different organism groups in ponds along strong land use gradients of both organic and conventional agriculture; (2) Test the hypotheses that aquatic biodiversity in ponds is higher in (a) areas of organic compared to conventional agriculture, and (b) areas of extensive compared to intensive land use; (3) Test the hypothesis that zooplankton populations are genetically differentiated between ponds in areas with organic versus conventional agriculture; (4) Test the hypothesis that the size of the buffer zone around standing waters impacts local biodiversity; (5) Estimate the effects on aquatic diversity of scenarios of increasing levels of organic farming at the regional scale; (6) Develop a map on priority areas where a transition to organic agriculture can have the largest impact on biodiversity and ecosystem services.

Document(s)
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Personnel interne
Koen Martens
Marie Cours
Jeroen Venderickx
Isabelle Schon
Funding
BELSPO
Partenaires et sponsors
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