The landscape context of trophic interactions : insect spillover across the crop-noncrop interface
The landscape context of trophic interactions : insect spillover across the crop-noncrop interface
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营养相互作用的景观背景：作物-非作物界面的昆虫溢出
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
F. Bianchi
中科院分区：
文献类型：
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作者：
T. Tscharntke;T. Rand;F. Bianchi
景观结构影响当地的多样性和生态系统过程，包括生物的跨生境通量耦合不同生境的动态。已知生物体跨越系统边界的流动发生在不同的自然栖息地之间以及跨越作物？非裁剪界面几项研究表明，农田边界如何增强捕食者种群入侵耕地作物和控制害虫种群。然而，多面手节肢动物也可能从土地利用系统溢出到自然区域（主要是草地）修改其中的相互作用。将土地利用系统视为源，将自然栖息地视为汇的观点与生物体的方向一致。通量是从高到低生产力系统，而非作物栖息地的重要来源，耕地后，他们被清除收获。从景观管理的角度来看，加强作物和非作物地区之间的人口交换可能包括有益的和不受欢迎的相互作用
Landscape structure influences local diversity and ecosystem processes, including cross-habitat fluxes of organisms coupling the dynamics of different habitats. The flow of organisms across system boundaries is known to occur between different natural habitats as well as across the crop?noncrop interface. Several studies show how field boundaries can enhance predator populations invading arable crops and controlling pest populations. However, generalist arthropods may also spill over from land-use systems to natural areas (mainly grassland) modifying interactions therein. A view of land-use systems as sources and natural habitats as sinks is consistent with the idea that the direction of the organismsâ?? fluxes is from high to low productivity systems, while noncrop habitats are important sources for recolonization of arable fields after they are cleared for harvest. From the perspective of landscape management, enhancement of population exchanges between crop and noncrop areas may include beneficial as well as unwelcome interactions