If it exists, where can I find data or some relevant references on the recovery rate (and time) of insect biodiversity (or just pollinators) when shifting from conventional to organic farming for different crop types?
Apr 17, 2015 - Comparison of biodiversity in organic and conventional farms has shown that ... On average, organic farming increased species richness by about 30%. ... on external inputs to restore and rejuvenate the environment, resulting in higher ... what is needed is a Europe-wide shift towards farming employing the ...by M Bavec - 2015
The key to "recovery" of biodiversity, is by reserving part of the fields FOR that biodiversity you want to return. A monoculture of any crop, only provides food and habitat for an extremely limited number of organisms. You have to set aside areas where you add that local native plant diversity back intentionally, with the proper food, nectar and pollen plants that the local insects need to survive. The recovery rate could be immediate, within six months or less, if there are populations of the insects nearby, and if your reserved areas are large enough.