Department of Entomology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.
Insect Sci. 2013 Jun;20(3):407-19. doi: 10.1111/j.1744-7917.2012.01530.x. Epub 2012 Jul 13.
The expanding demand for biofuel feedstock may lead to large-scale conscription of land for monoculture production of biofuel crops with concomitant substantial negative impacts on biodiversity. We compared moth diversity in light-trap samples from corn, miscanthus, switchgrass and native prairie, to determine whether there is an observable relationship between plant species diversity and moth abundance and diversity. Moth alpha diversity was highest in prairie and was higher in switchgrass than in the other two biofuel crops. Beta diversity generally was low among the biofuel crops, and prairie shared lower beta diversity with switchgrass than with corn or miscanthus. Analysis of variance showed no significant differences in moth abundance per species among treatments. The alpha and beta diversity index findings are consistent with those of other studies on arthropods in biofuel crops and provide evidence to suggest that large-scale conversion of acreage to biofuel crops may have substantial negative effects on arthropod biodiversity both within the cropping systems and in the surrounding landscape.
生物燃料原料需求的不断增长可能导致大规模征用地用于生物燃料作物的单一栽培，随之而来的是对生物多样性产生实质性的负面影响。我们通过比较诱捕灯下玉米、芒草、柳枝稷和原生草原的 moth 多样性，以确定植物物种多样性与 moth 丰富度和多样性之间是否存在可观察到的关系。 moth 的 alpha 多样性在草原中最高，在柳枝稷中高于其他两种生物燃料作物。生物燃料作物之间的 beta 多样性通常较低，草原与柳枝稷的 beta 多样性共享较低，而与玉米或芒草的 beta 多样性共享较低。方差分析表明，处理间每物种 moth 的丰度没有显著差异。alpha 和 beta 多样性指数的研究结果与其他关于生物燃料作物节肢动物的研究结果一致，并提供证据表明，大面积将耕地转换为生物燃料作物可能对作物系统内和周围景观中的节肢动物生物多样性产生实质性的负面影响。
