07 July 2013 43 8K Report

In a recent paper, me and my colleague Mário Ferreira have reported a rapid loss of biodiversity within a Natura 2000 site in Southwest Portugal (see http://www.sciencedirect.com/science/article/pii/S0006320713001791). We show that from 1991 to 2009 this site lost 56% of its valuable temporary pond habitats, of which 89.3% were destroyed due to agriculture intensification. We further show that this should have a strongly negative effect on amphibians, because most species cannot find alternative habitats in artificial water bodies (farm ponds, irrigation channels, and drainage ditches).

My question: is this a relatively isolated problem, or are similar processes occuring widely across Europe? Is anyone aware of studies published in the primary literature documenting similar trends (i.e., marked loss of biodiversity within Natura 2000 protection sites)? To what extent has the conservation effectiveness of Natura 2000 been evaluated at local, regional, national and European scales?

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