FARMING AND GROUND BEETLES - EFFECTS OF AGRONOMIC PRACTICE ON POPULATIONS AND COMMUNITY STRUCTURE

被引：90

作者：

CARCAMO, HA ^{[1
]}

NIEMALA, JK ^{[1
]}

SPENCE, JR ^{[1
]}

机构：

[1] UNIV ALBERTA,DEPT ENTOMOL,EDMONTON,AB T6G 2E3,CANADA

来源：

CANADIAN ENTOMOLOGIST | 1995年 / 127卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.4039/Ent127123-1

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

We studied the effects of agricultural practice on ground beetles, using pitfall traps in field plots and in an uncultivated meadow near Edmonton, Alberta. Ground beetle abundance and species richness were higher in plots operated under an organic farming regime than in those under a chemical regime, but neither crop type [barley (Hordeum vulgare L.), faba bean (Vicia faba L.), barley-pea (Pisum sativum L.) intercrop] nor crop rotation had an effect. Reduced tillage did not significantly change overall carabid activity or species richness but species differed in their response to tillage treatments. The carabid assemblage from an uncultivated field differed conspicuously from assemblages in the crops and fescue. Carabid abundance was highest in the meadow and the fauna was dominated by the exotic species Pterostichus melanarius Illiger. Effects of agronomic practice on carabid assemblages are complex, reflecting the interaction of biological traits of particular species and the combination of agronomic treatments applied.

引用

页码：123 / 140

页数：18

共 66 条

[1]

ALTIERI MA, 1979, HORTSCIENCE, V14, P12

[2] CATCHES IN PITFALL TRAPS IN RELATION TO MEAN DENSITIES OF CARABID BEETLES [J].