Rapid changes in flowering time in British plants
Rapid changes in flowering time in British plants
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DOI：
10.1126/science.1071617
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发表时间：
2002-05-31
期刊：
影响因子：
56.9
通讯作者：
Fitter, RSR
中科院分区：
文献类型：
--
作者：
Fitter, AH;Fitter, RSR
在过去的十年中，385种英国植物的平均首次开花日期比前四十年提前了4.5天：16%的物种在20世纪90年代比以前提前了15天。10种（3%）开花显着晚于20世纪90年代比以前。这些数据揭示了气候变化的最强生物信号。开花对前一个月的温度特别敏感，春季开花的物种反应最灵敏。然而，这种反应的种间差异将影响植物群落的结构和物种间的基因流动，因为气候变暖。一年生植物比同属多年生植物更可能提前开花，昆虫授粉的物种比风媒传粉的物种更容易开花。
The average first flowering date of 385 British plant species has advanced by 4.5 days during the past decade compared with the previous four decades: 16% of species flowered significantly earlier in the 1990s than previously, with an average advancement of 15 days in a decade. Ten species (3%) flowered significantly later in the 1990s than previously. These data reveal the strongest biological signal yet of climatic change. Flowering is especially sensitive to the temperature in the previous month, and spring-flowering species are most responsive. However, large interspecific differences in this response will affect both the structure of plant communities and gene flow between species as climate warms. Annuals are more likely to flower early than congeneric perennials, and insect-pollinated species more than wind-pollinated ones.