Display Settings:   Send to:  Choose Destination J Anim Ecol.
2010 Mar;79(2):491-500. doi: 10.1111/j.1365-2656.2009.01642.x.
Epub 2009 Dec 8.   Author information    • Agroecology, Georg-
August University, Waldweg 26, D-37073 Göttingen, Germany.
a.holzschuh@agr.uni-goettingen.de   1. Habitat destruction and
increasing land use intensity result in habitat loss,
fragmentation and degradation, and subsequently in the loss of
species diversity. The fact that these factors are often highly
confounded makes disentangling their effects extremely
difficult, if not impossible, and their relative impact on
species loss is mostly speculative. 2. In a two-year study, we
analysed the relative importance of changed landscape
composition (increased areas of cropped habitats), reduced
habitat connectivity and reduced habitat quality on nest
colonization of cavity-nesting bees, wasps and their
parasitoids. We selected 23 pairs of conventional and organic
wheat fields in the centre of landscape circles (500 m radius)
differing