Influence of within-field position and adjoining habitat on carabid beetle asmblages in winter
一般将来时的结构
gm什么意思wheat我只在乎你日语版
厦门日语期刊名称： Agricultural & Forest Entomology
作者： M. Anjum-Zubair,Martin H. Schmidt-Entling,Pascal Querner,Thomas Frank 作者机构： Department of Integrative Biology and Biodiversity
homoxual
Rearch,Community Ecology
年份： 2010年mountain
期号： 第3期
关键词： Activity-density;Carabidae;grassy margins;mi-natural habitat;species richness;wildflower areas
一分钟演讲稿摘要：1 The influence of within-field position and adjoining habitat on carabid beetles was studied in 2
0 winter wheat fields in ten different Swiss agricultural landscapes. In each landscape, two winter wheat fields (one with adjoining sown wildflower area and one with adjoining grassy margin) were investigated. 2 Carabid beetles were caught in pitfall traps 3 and 30 m from the edge in each of the 20 wheat fields. Significantly more individuals were found in the centres (30-m position) than at the edges (3-m position). Converly, species richness was significantly higher at the field edges than in the centres. 3 Of the ten most abundant species, Poecilus cupreus , Agonum muelleri and Pterostichus melanarius were significantly more abundant in the field centres than at the edges. Harpalus rufipes was significantly more abundant
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