'Beetle banks' as refuges for beneficial arthropods in farmland: long-term changes in predator communities and habitat

摘要

1 Significant differences in the overwintering densities of predatory carabid and staphylinid beetles and spiders occurred on an 'island' grassy bank habitat composed of blocks of Agrostis stolonifera, Dactylis glomerata, Holcus lanatus and Lolium perenne, within and between winters during a 7-year Study.