Scale-dependent responses in cabbage herbivores affect attack rates in spatially heterogeneous systems
作者: Peter A. HambäckMaria BjörkmanBirgitta RämertRichard J. Hopkins
作者单位: 1Department of Botany, Stockholm University, SE-106 91 Stockholm, Sweden
2Department of Plant Protection Biology, Swedish University of Agricultural Sciences, P.O. Box 44, SE-230 53 Alnarp, Sweden
3Department of Ecology, Swedish University of Agricultural Sciences, P.O. Box 7044, SE-750 07 Uppsala, Sweden
刊名: Basic and Applied Ecology, 2008, Vol.10 (3), pp.228-236
来源数据库: Elsevier Journal
DOI: 10.1016/j.baae.2008.06.004
关键词: Pieris rapaeMamestra brassicaeDelia radicumSearching behaviourBrassica oleraceaPreference hierarchiesCropping systemHerbivory
原始语种摘要: Abstract(#br)Herbivorous insects face a dilemma when selecting suitable hosts in a complex environment, and their sensory capability may often reduce the female capacity for proper selection. As a consequence, eggs are often deposited on inferior hosts, affecting both insect and host plant fitness. We examined the attack rates of three cabbage herbivores in monocultures and biculture plots of different Brassica oleracea genotypes, with different spatial heterogeneity. The main goals of the study were to improve our understanding of the spatial scales involved in herbivore search processes and to examine the possibility of using spatial heterogeneity for manipulating pest attack rates in cabbage cropping systems. The results showed that the host selection behaviour of the small white...
全文获取路径: Elsevier  (合作)
影响因子:2.696 (2012)