Worldwide occurrence records suggest a global decline in bee species richness
Worldwide occurrence records suggest a global decline in bee species richness
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DOI：
10.1016/j.oneear.2020.12.005
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发表时间：
2021-01-22
期刊：
影响因子：
16.2
通讯作者：
Aizen, Marcelo A.
中科院分区：
文献类型：
--
作者：
Zattara, Eduardo E.;Aizen, Marcelo A.
野生和人工管理的蜜蜂是关键的授粉者，确保或提高了世界上大部分野生开花植物的繁殖，并提高了所有栽培作物的产量。因此，最近有关野蜂数量减少及其潜在后果的报道令人担忧。然而，证据主要基于地方或区域研究;蜜蜂数量下降的全球状况尚未得到评估。为了填补这一空白，我们分析了全球生物多样性信息设施跨越世纪的公开可用的全球发生记录。我们发现，在20世纪90年代之后，收集到的蜜蜂物种数量急剧下降，2006年至2015年之间报告的物种数量比20世纪90年代之前减少了约25%。尽管鉴于数据集的异质性以及数据收集和报告中的潜在偏差，必须谨慎解释这些趋势，但结果表明需要迅速采取行动，以避免传粉媒介进一步减少。
Wild and managed bees are key pollinators, ensuring or enhancing the reproduction of a large fraction of the world's wild flowering plants and the yield of similar to 85% of all cultivated crops. Recent reports of wild bee decline and its potential consequences are thus worrisome. However, evidence is mostly based on local or regional studies; the global status of bee decline has not been assessed yet. To fill this gap, we analyzed publicly available worldwide occurrence records from the Global Biodiversity Information Facility spanning over a century. We found that after the 1990s, the number of collected bee species declines steeply such that approximately 25% fewer species were reported between 2006 and 2015 than before the 1990s. Although these trends must be interpreted cautiously given the heterogeneous nature of the dataset and potential biases in data collection and reporting, results suggest the need for swift actions to avoid further pollinator decline.