日前， PNAS上刊登了美国Rutgers大学Ignasi Bartomeus研究团队的最新论文"Climate-associated phenological advances in bee pollinators and bee-pollinated plants"，这项研究报告认为，植物和它们的蜜蜂传粉者的季节周期在过去的130年里都发生了类似的变化，这种变化主要发生在1970年到2010年气温上升的时候。

Ignasi Bartomeus及其同事使用当代数据和上溯到19世纪80年代的博物馆数据，从而研究了北美东北地区春季出现10种野生蜂的与气候有关的变化。他们的模型表明在过去的130年中，这些蜂每年春天平均早出现了10天，这种变化大部分出现在1970年之后，这恰逢全球气温上升。这组作者还使用来自4个已发表的研究的信息追踪了这些蜂传粉的106种原产植物物种年度春季开花的变化。这组作者发现，植物和蜂的季节周期都发生了类似的变化。这组作者提出，尽管蜂出现的周期看上去与宿主植物开花的变化同步，如果气候变暖以现在的速率继续下去，未来可能出现额外的不匹配。(生物谷 Bioon.com)
Climate-associated phenological advances in bee pollinators and bee-pollinated plants

Ignasi Bartomeusa,1, John S. Ascherb, David Wagnerc, Bryan N. Danforthd, Sheila Collae, Sarah Kornbluthb, and Rachael Winfreea

The phenology of many ecological processes is modulated by temperature, making them potentially sensitive to climate change. Mutualistic interactions may be especially vulnerable because of the potential for phenological mismatching if the species involved do not respond similarly to changes in temperature. Here we present an analysis of climate-associated shifts in the phenology of wild bees, the most important pollinators worldwide, and compare these shifts to published studies of bee-pollinated plants over the same time period. We report that over the past 130 y, the phenology of 10 bee species from northeastern North America has advanced by a mean of 10.4 ± 1.3 d. Most of this advance has taken place since 1970, paralleling global temperature increases. When the best available data are used to estimate analogous rates of advance for plants, these rates are not distinguishable from those of bees, suggesting that bee emergence is keeping pace with shifts in host-plant flowering, at least among the generalist species that we investigated.