Linking the foraging behavior of three bee species to pollen dispersal and gene flow
Linking the foraging behavior of three bee species to pollen dispersal and gene flow
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DOI：
10.1371/journal.pone.0212561
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发表时间：
2019-02-26
期刊：
影响因子：
3.7
通讯作者：
Clayton, Murray K.
中科院分区：
文献类型：
--
作者：
Brunet, Johanne;Zhao, Yang;Clayton, Murray K.
影响基因流动的觅食行为可以指导传粉者策略的设计以减轻基因流动。减少基因流动有望将转基因作物对野生和自然种群的影响降至最低，并促进不同农业市场的共存。这项研究的目的是将觅食行为与基因流联系起来，并确定有助于预测不同蜜蜂物种基因流的行为。为了达到这一目标，我们首先研究和比较了三种不同的蜜蜂物种，欧洲蜜蜂，意大利蜜蜂，常见的东方熊蜂，熊蜂凤仙花，和苜蓿切叶蜂，圆切叶蜂，以紫花苜蓿的花为食每一个觅食行为调查不同的蜜蜂物种。这两个社会蜜蜂表现出方向性的运动，并有类似的住所，相反，随机运动和较短的居住时间的孤独的蜜蜂。三种蜜蜂的跳闸率和净行程不同。我们对蜜蜂物种中的每种行为进行排名，并使用相对排名作为基因流预测因子，然后根据经验基因流数据测试预测。跳闸率和净距离旅行，但不是住所，预测蜜蜂物种之间的相对基因扩散。将特定行为与基因流联系起来，提供了解释蜜蜂物种间基因流差异的机制，并指导管理实践的发展，以减少基因流。虽然在一个系统中开发，这里开发的方法可以推广到不同的植物/传粉系统。
Foraging behaviors that impact gene flow can guide the design of pollinator strategies to mitigate gene flow. Reduced gene flow is expected to minimize the impact of genetically engineered (GE) crops on feral and natural populations and to facilitate the coexistence of different agricultural markets. The goal of this study is to link foraging behavior to gene flow and identify behaviors that can help predict gene flow for different bee species. To reach this goal, we first examined and compared the foraging behaviors of three distinct bee species, the European honey bee, Apis mellifera L., the common eastern bumble bee, Bombus impatiens Cr., and the alfalfa leafcutting bee, Megachile rotundata F., foraging on Medicago sativa flowers. Each foraging behavior investigated differed among bee species. Both social bees exhibited directionality of movement and had similar residence, in contrast to the random movement and shorter residence of the solitary bee. Tripping rate and net distance traveled differed among the three bee species. We ranked each behavior among bee species and used the relative ranking as gene flow predictor before testing the predictions against empirical gene flow data. Tripping rate and net distance traveled, but not residence, predicted relative gene dispersal among bee species. Linking specific behaviors to gene flow provides mechanisms to explain differences in gene flow among bee species and guides the development of management practices to reduce gene flow. Although developed in one system, the approach developed here can be generalized to different plant/pollinator systems.