Invertebrate responses to the management of genetically modified herbicide-tolerant and conventional spring crops. II. Within-field epigeal and aerial arthropods
Invertebrate responses to the management of genetically modified herbicide-tolerant and conventional spring crops. II. Within-field epigeal and aerial arthropods
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DOI：
10.1098/rstb.2003.1408
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发表时间：
2003-11-29
期刊：
影响因子：
--
通讯作者：
Walker, MJ
中科院分区：
文献类型：
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作者：
Haughton, AJ;Champion, GT;Walker, MJ
作为转基因抗除草剂作物农场规模评价的一部分，在66个甜菜、68个玉米和67个春油菜地点，评估了转基因耐除草剂作物管理对地上节肢动物和地上节肢动物丰度的影响。大多数高等分类群对GMHT和常规杂草管理的差异不敏感，但发现对每个分类群中至少一个类群的丰度有显著影响。在相应的GMHT作物管理下，甜菜和春油菜中的蝴蝶数量以及甜菜中的异翅目昆虫和蜜蜂的数量较少，而弹尾目动物在所有GMHT作物中的丰度一直较高。一般来说，这些影响是每种作物特有的，反映了节肢动物类群的物候和生态，是间接的，与除草剂管理有关。这些结果普遍适用于英国各地的农业，并可用于数学模型，以预测广泛采用GMHT技术可能产生的长期影响。蜜蜂和蝴蝶的结果与觅食偏好有关，可能会也可能不会转化为对种群密度的影响，这取决于采用是否会导致大面积的饲料减少。这些物种，以及有害的弹尾目动物，可能是未来GMHT管理研究的有用指示物种。
The effects of the management of genetically modified herbicide-tolerant (GMHT) crops on the abundances of aerial and epigeal arthropods were assessed in 66 beet, 68 maize and 67 spring oilseed rape sites as part of the Farm Scale Evaluations of GMHT crops. Most higher taxa were insensitive to differences between GMHT and conventional weed management, but significant effects were found on the abundance of at least one group within each taxon studied. Numbers of butterflies in beet and spring oilseed rape and of Heteroptera and bees in beet were smaller under the relevant GMHT crop management, whereas the abundance of Collembola was consistently greater in all GMHT crops. Generally, these effects were specific to each crop type, reflected the phenology and ecology of the arthropod taxa, were indirect and related to herbicide management. These results apply generally to agriculture across Britain, and could be used in mathematical models to predict the possible long-term effects of the widespread adoption of GMHT technology. The results for bees and butterflies relate to foraging preferences and might or might not translate into effects on population densities, depending on whether adoption leads to forage reductions over large areas. These species, and the detritivore Collembola, may be useful indicator species for future studies of GMHT management.