Washington University, Department of Biology, St. Louis, MO 63130, USA.
Science. 2013 Mar 29;339(6127):1611-5. doi: 10.1126/science.1232728. Epub 2013 Feb 28.
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.
利用历史数据集，我们量化了在 120 多年的时间里，全球变化对美国伊利诺伊州温带森林林下植物-传粉者相互作用的干扰程度。我们发现，相互作用网络的结构和功能退化，50%的蜜蜂物种灭绝。网络变化可归因于草本植物和蜜蜂物候的转变，导致时间不匹配、非随机物种灭绝以及在改良景观中现存物种空间共存的丧失。传粉服务的数量和质量随时间下降。历史网络对干扰有一定的适应性；然而，我们的数据表明，网络对未来的变化将不太具有弹性。
