Ruggiero Antonio, Céréghino Régis, Figuerola Jordi, Marty Pierre, Angélibert Sandrine
Laboratoire d'Ecologie Fonctionnelle (EcoLab), UMR 5245, Université Paul-Sabatier, 118 Route de Narbonne, 31062 Toulouse cedex 9, France.
C R Biol. 2008 Apr;331(4):298-308. doi: 10.1016/j.crvi.2008.01.009. Epub 2008 Mar 4.
Manmade 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.
人工生态系统提供了具有强大经济价值的多种资源。我们评估了法国西南部一个缺乏天然湿地的农业景观中37个农用池塘对蜻蜓目生物多样性的重要性。农用池塘容纳了区域物种库的40%，包括常见物种和稀有物种。物种组合与池塘用途（如牲畜饮水、养鸭等）或景观变量无关。物种丰富度与池塘面积相关，这表明群落多样性主要由自身生态过程驱动。因此，农用池塘对水生生物多样性的维持做出了积极贡献。在计算为人类活动建造水体的成本和收益时，应考虑这种生物多样性的附加价值。
