Negative effects of urbanisation on diurnal and nocturnal pollen-transport networks.
Negative effects of urbanisation on diurnal and nocturnal pollen-transport networks.
复制标题
城市化对昼夜花粉传输网络的负面影响。
DOI：
10.1111/ele.14261
复制
发表时间：
2023
期刊：
影响因子：
8.8
通讯作者：
Ellis EE
中科院分区：
文献类型：
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作者：
Ellis EE
由于栖息地丧失和气候变化，授粉昆虫正在减少，栖息地和花卉资源有限的城市可能特别脆弱。城市景观对授粉网络的影响仍然知之甚少，不同的生态位类群的比较研究缺乏。在这里，我们第一次使用DNA元条形码同时比较了夜行蛾和昼夜蜜蜂的花粉运输网络，并询问授粉网络如何受到日益增长的城市化的影响。蜜蜂和飞蛾在与它们相互作用的植物群落中表现出很大的差异。城市化程度的提高对这两个类群的花粉运输网络产生了相当的负面影响，花粉物种丰富度显著下降。我们表明，蛾是一个重要的，但被忽视的，城市花粉运输网络的野生开花植物，园艺作物和树木的组成部分。我们的研究结果强调，在评估城市化景观中关键植物-昆虫相互作用的状况时，需要包括蜜蜂和非蜜蜂类群。
Pollinating insects are declining due to habitat loss and climate change, and cities with limited habitat and floral resources may be particularly vulnerable. The effects of urban landscapes on pollination networks remain poorly understood, and comparative studies of taxa with divergent niches are lacking. Here, for the first time, we simultaneously compare nocturnal moth and diurnal bee pollen‐transport networks using DNA metabarcoding and ask how pollination networks are affected by increasing urbanisation. Bees and moths exhibited substantial divergence in the communities of plants they interact with. Increasing urbanisation had comparable negative effects on pollen‐transport networks of both taxa, with significant declines in pollen species richness. We show that moths are an important, but overlooked, component of urban pollen‐transport networks for wild flowering plants, horticultural crops, and trees. Our findings highlight the need to include both bee and non‐bee taxa when assessing the status of critical plant‐insect interactions in urbanised landscapes.