Pollinator sharing between mass-flowering oilseed rape and co-flowering wild plants: implications for wild plant pollination
Pollinator sharing between mass-flowering oilseed rape and co-flowering wild plants: implications for wild plant pollination
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大量开花的油菜和共花野生植物之间的传粉媒介共享：对野生植物授粉的影响
DOI：
10.1007/s11258-014-0301-7
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发表时间：
2014
期刊：
影响因子：
1.7
通讯作者：
J C Stout
中科院分区：
文献类型：
--
作者：
D. Stanley;J C Stout
传粉昆虫不仅在野生植物授粉中发挥重要作用，而且在大量农作物的生产中也发挥重要作用。由于对生物燃料的需求，全球油菜产量正在增加，这可能会影响到访问作物的授粉昆虫以及为共花野生植物提供的授粉服务。在这项研究中，我们测试了（1）油菜和本地野生植物之间的传粉者共享的程度，在田间边缘和树篱和（2）油菜的授粉服务质量提供给这些野生植物的影响。我们发现野生植物和油菜花访客之间有很大的重叠，但物种重叠的组成不同，每个野生植物物种。几乎所有的个体游客都携带了作物花粉，但超过一半的昆虫也携带了野生植物的花粉。然而，很少有油菜花粉沉积在野生植物柱头上。这表明：（1）油菜与大多数共花野生植物在传粉者生态位上重叠，（2）作物花粉沉积在野生植物柱头上的程度很低，这可能表明它不太可能导致野生植物结实率的降低，尽管这里没有测量。此外，野生植物在田间边缘和绿篱的重要来源，替代饲料授粉昆虫，即使当作物是大规模开花，我们建议维护和增加田间边缘和绿篱，以提供替代饲料传粉者保护，继续提供授粉服务的作物和野生植物。
Pollinating insects are not only important in wild plant pollination, but also in the production of a large number of crops. Oilseed rape production is increasing globally due to demands for biofuels which may have impacts on pollinating insects which visit the crop and on the pollination services delivered to co-flowering wild plants. In this study, we tested (1) the degree of pollinator sharing between oilseed rape and native wild plants in field margins and hedgerows and (2) the effects of oilseed rape on the quality of pollination service delivered to these wild plants. We found large overlap between flower visitors of wild plants and oilseed rape, but the composition of species overlap differed with respect to each wild plant species. Nearly all individual visitors caught on both the crop and foraging on wild species carried crop pollen, but more than half the insects also carried pollen from wild plants. However, very little oilseed rape pollen was deposited on wild plant stigmas. This shows that (1) oilseed rape overlaps in pollinator niche with most co-flowering wild plants, and (2) crop pollen deposition on wild plant stigmas is low which may indicate that it is unlikely to cause reductions in seed set of wild plants, although this was not measured here. Furthermore, wild plants in field margins and hedgerows are important sources of alternative forage for pollinating insects even when a crop is mass flowering, and we suggest maintenance and augmentation of field margins and hedgerows to provide alternative forage for pollinator conservation to continue provision of pollination services to both crops and wild plants.
影响因子：
5.7
作者：
Klein, Alexandra-Maria;Brittain, Claire;Kremen, Claire
通讯作者：
Kremen, Claire
影响因子：
4.2
作者：
Jacobs, Jennifer H.;Clark, Suzanne J.;Osborne, Juliet L.
通讯作者：
Osborne, Juliet L.