物候学
生殖成功
生物
高山植物
气候变化
全球变暖
开花植物
繁殖
植物繁殖
降水
生态学
农学
授粉
地理
花粉
人口
人口学
社会学
气象学
作者
Tianwu Zhang,Yaya Chen,Xiangrong Yang,Hui Zhang,Zengpeng Guo,Guorui Hu,Haonan Bai,Yinguang Sun,Li Huang,Miaojun Ma
标识
DOI:10.1098/rspb.2024.1110
摘要
Changes in reproductive phenology induced by warming are happening across the globe, with significant implications for plant sexual reproduction. However, the changes in plant reproductive output (number of flowers and fruits) and success (successful fruits/total flowers) in response to climate change have not been well characterized. Here, we conducted a warming and altered precipitation experiment in an alpine meadow on the eastern Tibetan Plateau to investigate the effects of climate change on the reproductive phenology and success of six common species belonging to two flowering functional groups. We found that warming advanced the start of flowering and the start of fruiting in mid-summerflowering plants. Warming reduced the reproductive output of early-spring flowering plants but did not change their reproductive success. The effects of warming and altered precipitation on the reproductive output and success of mid-summer flowering plants were year-dependent, and the fruiting phenology regulated the response of the mid-summer flowering plant’s reproductive success to climate change. These findings highlight the critical role of fruiting phenology in the reproductive success of alpine plants and imply that alpine plants may reduce their fitness by producing fewer flowers and fruits under climate warming, especially for later flowering plants.
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