Bangkok Pollinator Data (Stewart & Waitayachart 2020)

Pollinator abundance and richness data collected from nine parks in Bangkok, Thailand during December 2017 - November 2018. Stewart AB, Waitayachart P. 2020. Year-round temporal stability of a tropical, urban plant-pollinator network. PLOS ONE. Abstract Plant-pollinator interactions are known to vary across time, both in terms of species composition and the associations between partner species. However, less is known about tropical pollination networks, and tropical urban parks provide a unique opportunity to study network stability in an environment where temperature and floral resources are relatively constant due to both the tropical climate as well as park horticulture. The objectives of this study were thus to examine the interactions between flowering plants and their potential pollinators in a large, tropical city (Bangkok, Thailand) across 12 consecutive months, and to assess the stability of network properties over time. We conducted monthly pollinator observations at 9 parks spaced throughout the city, and collected data on temperature, precipitation, floral abundance and floral species richness. We found that neither pollinator abundance nor richness varied significantly across months when all parks were pooled. However, pollinator abundance was significantly influenced by floral abundance, floral richness, and their interaction, and pollinator richness was significantly influenced by floral richness and precipitation. Finally, we found that network properties did not change across months, even as species composition did. We conclude that the year-round constancy of floral resources and climate conditions appear to create a network in dynamic equilibrium, where plant and pollinator species compositions change, but network properties remain stable. The results of this study provide useful information about how tropical pollinators respond to urban environments, which is particularly relevant given that most urban development is predicted to occur in the tropics.本数据集采集了2017年12月至2018年11月期间，泰国曼谷9座公园内的传粉者（pollinator）多度与物种丰富度数据。 Stewart AB、Waitayachart P于2020年在《PLOS ONE》发表论文《热带城市植物-传粉者网络的全年时间稳定性》。 摘要 植物-传粉者互作会随时间发生变化，这种变化既体现在物种组成层面，也反映在物种间的互作关联上。然而当前学界对热带传粉网络的认知仍较为有限，而热带城市公园提供了独特的研究场景：热带气候与公园园艺管护共同维持了相对稳定的温度与花资源供给，为研究网络稳定性创造了理想环境。本研究的目标为，在泰国曼谷这座大型热带城市中，连续12个月调查开花植物与其潜在传粉者之间的互作关系，并评估网络属性随时间的稳定性。 我们在曼谷全市范围内的9座公园每月开展传粉者观测，同时采集了温度、降水量、花多度与花物种丰富度相关数据。分析结果显示，当合并所有公园的数据时，传粉者的多度与物种丰富度均未随月份出现显著变化。不过，传粉者多度会受到花多度、花物种丰富度及其交互作用的显著影响；传粉者丰富度则显著受花物种丰富度与降水量的调控。此外，尽管物种组成随时间发生改变，但网络属性并未出现月度变化。 我们据此得出结论：花资源与气候条件的全年恒定，似乎构建出了一个处于动态平衡的传粉网络——植物与传粉者的物种组成虽会发生变化，但网络属性始终保持稳定。本研究结果为理解热带传粉者如何响应城市环境提供了有价值的参考；鉴于绝大多数城市扩张预计都将发生在热带地区，该研究结果具备重要的现实意义。