The Organic Research Centre inWaleshas published a very interesting and informative article summary of experiments and literature on the impact of organic agricultural production methods on biodiversity. The article stated that
“There is overwhelming evidence that organic farming provides more biodiversity than conventional farming.”[1]
As I wrote in a previous entry, the EU regulations for organic agriculture emphasises the importance of choosing plants and animal species that are resistant to disease and adapted to local conditions. Another crucial aspect of organic farming is maintaining regional ecological. So, according to the EU regulations, supporting biodiversity is an integrated aim of organic agricultural systems. The question is, to what extend organic agriculture has a more positive effect on biodiversity than conventional agricultural systems. The article from the Organic Research Centre state that the current understanding of ecosystems is still quite poor. In spite of this, the article emphasises that
“With few exceptions, it seems clear that, over a wide geographical range and for different forms of organic and non-organic farming, the organic approach can provide reasonably consistent advantages for biodiversity” [2]
However, in a recent study researchers from Universityof Leedshave that organic farming only shows limited benefit to wildlife biodiversity, “averaging just over 12 percent more than conventional farming.”[3]
Even if it only is 12 percent as this study suggests, it still seems like a significant step in the right direction – especially when the newly established Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES) has emphasised the gravity in the decline of biodiversity worldwide.[4] IPBES will be up and running in 2012 and has as object to make the science science-policy interface work better to inform decision makers.[5]
[1] http://www.organiccentrewales.org.uk/uploads/biodiversity_review_2011.pdf
[2] http://www.organiccentrewales.org.uk/uploads/biodiversity_review_2011.pdf













