Biodiversity buffers pollination from changes in environmental conditions
Biodiversity buffers pollination from changes in environmental conditions
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DOI：
10.1111/gcb.12043
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发表时间：
2013-02-01
影响因子：
11.6
通讯作者：
Klein, Alexandra-Maria
中科院分区：
文献类型：
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作者：
Brittain, Claire;Kremen, Claire;Klein, Alexandra-Maria
多样性功能关系的一个假设的基本原则是，功能组对环境变化的反应不同。在3年多的时间里，我们调查了传粉者多样性如何通过空间互补性和对加州杏仁园大风的差异反应来影响授粉服务的规模。我们发现蜜蜂优先访问树的顶部。在野生传粉者存在的地方，它们表现出空间互补性，蜜蜂和访问底部的树节更频繁。随着风速的增加，蜜蜂的空间偏好向树的底部转移。在强风（>2.5 m s（-1））下，授粉者多样性低的果园（仅蜜蜂）几乎没有花朵访问。在具有高传粉者多样性的果园中，由于野蜂的访问不受大风的影响，访问量下降到较小的程度。我们的研究结果表明，不同社区的空间互补性如何有助于缓冲授粉服务对风速等环境变化的影响。
A hypothesized underlying principle of the diversity-functioning relationship is that functional groups respond differently to environmental change. Over 3 years, we investigated how pollinator diversity contributes to the magnitude of pollination service through spatial complementarity and differential response to high winds in California almond orchards. We found honey bees preferentially visited the top sections of the tree. Where wild pollinators were present, they showed spatial complementarity to honey bees and visited the bottom tree sections more frequently. As wind speed increased, honey bees' spatial preference shifted toward the bottom tree sections. In high winds (>2.5 m s(-1)), orchards with low pollinator diversity (honey bees only) received almost no flower visits. In orchards with high pollinator diversity, visitation decreased to a lesser extent as wild bee visitation was unaffected by high winds. Our results demonstrate how spatial complementarity in diverse communities can help buffer pollination services to environmental changes like wind speed.