Landscape simplification decreases wild bee pollination services to strawberry
Landscape simplification decreases wild bee pollination services to strawberry
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DOI：
10.1016/j.agee.2015.05.004
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发表时间：
2015-12-15
影响因子：
6.6
通讯作者：
Loeb, Gregory
中科院分区：
文献类型：
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作者：
Connelly, Heather;Poveda, Katja;Loeb, Gregory
授粉服务的成功保护取决于对影响景观内授粉媒介多样性的过程的理解，以及授粉媒介群落组成与服务提供之间的关系。在这项研究中，评估了景观简化对授粉媒介群落组成以及为栽培草莓（Fragaria x ananassa）提供授粉服务的影响。此外，还测量了访问草莓花的五种最常见蜂属的相对授粉效率。在美国纽约州手指湖地区种植相同草莓品种的 14 个商业农场，在开花期间用盘式诱捕器收集授粉昆虫。这些农场的选择代表了周围景观中农业用地比例从 0.09 到 0.60 的梯度。农业面积比例较大的景观，传粉媒介丰度和物种丰富度较低。虽然产量与授粉媒介丰度呈正相关，但物种丰富度对授粉服务水平影响不大。这一结论得到了访客身份并不能解释草莓授粉效率的发现的支持。我们的结果表明，景观中高比例的农业用地对野生授粉媒介和草莓授粉服务产生负面影响。 (C) 2015 Elsevier B.V. 保留所有权利。
Successful conservation of pollination services depends upon an understanding of the processes that influence pollinator diversity within the landscape, as well as the relationship between pollinator community composition and the provision of services. In this study, the influence of landscape simplification on the composition of pollinator communities and the provisioning of pollination services to cultivated strawberry was evaluated (Fragaria x ananassa). Additionally the relative pollination efficiency for the five most common bee genera visiting strawberry flowers was measured. Pollinators were collected during bloom with pan traps on 14 commercial farms all growing the same strawberry variety in the Finger Lakes Region, NY, USA. The farms were chosen to represent a gradient in the proportion of agricultural land uses in the surrounding landscape from 0.09 to 0.60. Landscapes with greater proportions of agricultural area had lower pollinator abundances and species richness. While yield was positively correlated with pollinator abundance, species richness had little effect on the level of pollination services. This conclusion was supported by the finding that visitor identity did not explain pollination efficiency in strawberry. Our results show that a high proportion of agricultural land in the landscape negatively impacts wild pollinators and pollination services to strawberry. (C) 2015 Elsevier B.V. All rights reserved.