01422nas a2200181   4500008004100000245010900041210006900150260000800219300001200227490000800239520083300247100002201080700002401102700002101126700001801147700002601165856004901191       2008                        eng d00aFarm ponds make a contribution to the biodiversity of aquatic insects in a French agricultural landscape0 aFarm ponds make a contribution to the biodiversity of aquatic in  cApr  a298-3080 v3313 aManmade ecosystems provide a variety of resources that have strong economic values. We assessed the importance of 37 farm ponds for the biodiversity of Odonata in an agricultural landscape lacking natural wetlands in southwestern France. Farm ponds captured 40% of the regional species pool, including both common and rare species. The species assemblages were not correlated with pond use (e.g., cattle watering, duck farming, etc.) or to landscape variable. Species richness was correlated with pond area, suggesting that community diversity was primarily driven by autoecological processes. Farm ponds thus made a positive contribution to the maintenance of aquatic biodiversity. This added value for biodiversity should be considered when calculating the costs and benefits of constructing water bodies for human activities.1 aRuggiero, Antonio1 aCéréghino, Régis1 aFiguerola, Jordi1 aMarty, Pierre1 aAngélibert, Sandrine  uhttps://worldodonata.myspecies.info/node/226