A systems approach reveals urban pollinator hotspots and conservation opportunities
A systems approach reveals urban pollinator hotspots and conservation opportunities
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DOI：
10.1038/s41559-018-0769-y
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发表时间：
2019-03-01
影响因子：
16.8
通讯作者：
Memmott, Jane
中科院分区：
文献类型：
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作者：
Baldock, Katherine C. R.;Goddard, Mark A.;Memmott, Jane
人们通常认为城市地区的生物多样性低于广大的农村地区，但一些小规模的研究表明，一些城市土地的使用可以支持大量的传粉者种群。我们提出了一个大规模的，复制良好的研究，花卉资源和传粉者在360个网站，包括所有主要的土地利用在四个英国城市。使用系统的方法，我们开发了贝叶斯网络模型整合传粉传播和资源转换，以估计城市规模的管理干预措施对植物传粉者群落的稳健性物种损失的影响。我们表明，住宅花园和分配地（社区花园）是传粉者的“热点”：花园因其面积广阔而成为传粉者的“热点”，而分配地则因其传粉者的高度多样性和对城市规模植物传粉者群落稳健性的影响而成为传粉者的“热点”。家庭收入呈正相关，传粉者丰富的花园，突出社会经济因素的影响。我们的研究结果支持城市规划建议，以加强传粉者保护，使用增加城市规模的社区稳健性作为我们的成功措施。
Urban areas are often perceived to have lower biodiversity than the wider countryside, but a few small-scale studies suggest that some urban land uses can support substantial pollinator populations. We present a large-scale, well-replicated study of floral resources and pollinators in 360 sites incorporating all major land uses in four British cities. Using a systems approach, we developed Bayesian network models integrating pollinator dispersal and resource switching to estimate city-scale effects of management interventions on plant-pollinator community robustness to species loss. We show that residential gardens and allotments (community gardens) are pollinator 'hotspots': gardens due to their extensive area, and allotments due to their high pollinator diversity and leverage on city-scale plant-pollinator community robustness. Household income was positively associated with pollinator abundance in gardens, highlighting the influence of socioeconomic factors. Our results underpin urban planning recommendations to enhance pollinator conservation, using increasing city-scale community robustness as our measure of success.