Journal
SCIENCE
Volume 339, Issue 6127, Pages 1611-1615Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1232728
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Funding
- NSF [DEB 0934376, 06-520 DRL-0739874]
- NSF
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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.
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