Creation of "island' habitats in farmland to manipulate populations of beneficial arthropods: predator densities and species composition

Data are presented from a 3-yr study on the creation of grass overwintering habitats for the arthropods which are the natural enemies of cereal aphids. Densities of individual predatory species varied considerably, with Araneae and Carabidae showing successional changes from pioneer to more specialized species as the newly created habitats matured. -from Authors