Data from: Plant-pollinator interactions over 120 years: loss of species, co-occurrence, and function

Using historic data sets, we quantified the degree to which global change over 120 years disrupted plant-pollinator interactions in a temperate forest understory community in Illinois, USA. We found degradation of interaction network structure and function and extirpation of 50% of bee species. Network changes can be attributed to shifts in forb and bee phenologies resulting in temporal mismatches, nonrandom species extinctions, and loss of spatial co-occurrences between extant species in modified landscapes. Quantity and quality of pollination services have declined through time. The historic network showed flexibility in response to disturbance; however, our data suggest that networks will be less resilient to future changes.

本研究依托历史数据集，量化了美国伊利诺伊州温带森林林下群落中，120余年来全球环境变化对植物-传粉者互作的干扰程度。研究发现，该互作网络的结构与功能发生退化，且有50%的蜂类物种遭遇局部灭绝。互作网络的变化可归因于非禾本科草本植物与蜂类的物候偏移引发的时间匹配失衡、非随机的物种灭绝，以及受人类活动改造的景观中现存物种间空间共现关系的丧失。传粉服务的数量与质量均随时间推移持续下降。历史互作网络曾展现出应对干扰的弹性能力，但本研究数据显示，未来的环境变化下，此类网络的抗扰动能力将显著降低。