中文摘要：本文用四种转基因杂交玉米（抗鞘翅目昆虫，抗鞘翅目且鳞翅目昆虫、抗鳞翅目昆虫且抗除草剂、抗鞘翅目昆虫且抗除草剂）和非转基因玉米对比了节肢动物的功能多样性，并确定是否有转基因改变了节肢动物食物网结构。本文共有399239节肢动物体用于分析。营养类群数和它们间的关系表明，无论是高Bt毒素，还是额外的草甘膦处理均没有改变食物网的结构。然而，草食动物群和植物群的转基因和非转基因食物网的平均营养链/营养组间存在差异。此外，作者对草食动物转基因和非转基因食物网的特征路径长度间的差异进行了观察。研究发现，基于2年实验评估的参数化食物网，其属性被认为是评估Bt毒素对非靶标生物影响的一个有用和简单的工具。
外文摘要：Four genetically modified (GM) maize (Zea mays L.) hybrids (coleopteran resistant, coleopteran and lepidopteran resistant, lepidopteran resistant and herbicide tolerant, coleopteran and herbicide tolerant) and its non-GM control maize stands were tested to compare the functional diversity of arthropods and to determine whether genetic modifications alter the structure of arthropods food webs. A total number of 399,239 arthropod individuals were used for analyses. The trophic groups' number and the links between them indicated that neither the higher magnitude of Bt toxins (included resistance against insect, and against both insects and glyphosate) nor the extra glyphosate treatment changed the structure of food webs. However, differences in the average trophic links/trophic groups were detected between GM and non-GM food webs for herbivore groups and plants. Also, differences in characteristic path lengths between GM and non-GM food webs for herbivores were observed. Food webs parameterized based on 2-year in-field assessments, and their properties can be considered a useful and simple tool to evaluate the effects of Bt toxins on non-target organisms.
外文关键词：characteristic path length; herbivores; non-target organisms; predators; trophic groups
作者：Palinkas, Zoltan; Kiss, Jozsef; Zalai, Mihaly; 等
作者单位：Szent Istvan Univ
期刊名称：ECOLOGY AND EVOLUTION
期刊影响因子：2.537
出版年份：2017
出版刊次：4
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