Does organic farming 'benefit biodiversity'?

In the paper "Global effects of land use on local terrestrial biodiversity" (see also on BBC) the scientist Tim Newbold (Computational Science Laboratory, Cambridge, UK) presents a theoretical model that argues how several aspects of biological diversity respond to human actions.

The author suggests that the loss of diversity may impact important ecosystem functions, including crop production and soil productivity... is this True? is there a way we can experimentally test this Model? These are the kind of questions we want to answer with the project "Can Microbes Save the Earth?" so, Read more about our research idea!