Many bee species, including rare species, are important for function of entire plant-pollinator networks
Many bee species, including rare species, are important for function of entire plant-pollinator networks
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许多蜜蜂物种，包括稀有物种，对于整个植物传粉媒介网络的功能非常重要
DOI：
10.1098/rspb.2021.2689
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发表时间：
2022
影响因子：
--
通讯作者：
and R Winfree
中科院分区：
文献类型：
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作者：
Simpson, D T;L R Weinman;M A Genung;M E Roswell;M MacLeod;and R Winfree
必须了解生物多样性，包括稀有物种的生物多样性如何影响生态系统功能。在这里，我们从授粉的角度来考虑这个问题。授粉功能的研究通常集中在单个植物物种的授粉，或跨植物的平均授粉，并且通常发现授粉依赖于少数常见物种。在这里，我们使用的数据，从11个植物蜜蜂访问网络在新泽西，美国，问功能重要的蜜蜂物种的数量是否变化，因为我们认为功能分别为每个植物物种在日益多样化的植物群落。利用稀疏分析，我们发现重要蜂种的数量随着植物种类的增加而增加。总体而言，2.5至7.6倍以上的蜜蜂物种是重要的，在社区规模，相对于平均植物物种在同一社区。这种效应在我们的任何数据集中都没有渐近线，这表明在现实世界的系统中需要更大的蜜蜂生物多样性。最后，平均而言，在整个植物群落中，25%的蜜蜂物种在群落规模上是重要的，在它们的网络中也是数量上罕见的，这使得这项研究成为迄今为止最有力的经验证明之一。
It is important to understand how biodiversity, including that of rare species, affects ecosystem function. Here, we consider this question with regard to pollination. Studies of pollination function have typically focused on pollination of single plant species, or average pollination across plants, and typically find that pollination depends on a few common species. Here, we used data from 11 plant–bee visitation networks in New Jersey, USA, to ask whether the number of functionally important bee species changes as we consider function separately for each plant species in increasingly diverse plant communities. Using rarefaction analysis, we found the number of important bee species increased with the number of plant species. Overall, 2.5 to 7.6 times more bee species were important at the community scale, relative to the average plant species in the same community. This effect did not asymptote in any of our datasets, suggesting that even greater bee biodiversity is needed in real-world systems. Lastly, on average across plant communities, 25% of bee species that were important at the community scale were also numerically rare within their network, making this study one of the strongest empirical demonstrations to date of the functional importance of rare species.