Extreme drought disrupts plant phenology: Insights from 35 years of cloud forest data in Venezuela
Extreme drought disrupts plant phenology: Insights from 35 years of cloud forest data in Venezuela
复制标题
极端干旱扰乱植物物候：来自委内瑞拉 35 年云林数据的见解
DOI：
10.1002/ecy.4012
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发表时间：
2023
期刊：
影响因子：
4.8
通讯作者：
Dyer, Lee A.
中科院分区：
文献类型：
--
作者：
Flores, Saúl;Forister, Matthew L.;Sulbaran, Hendrik;Díaz, Rodrigo;Dyer, Lee A.
气候变化对植物繁殖物候的潜在影响包括与传粉媒介的不同步和植物适应性的降低，从而导致灭绝和生态系统功能丧失。特别是，植物物候学对极端天气事件敏感，近几十年来，极端天气事件发生的严重程度和频率不断增加，并且与人为气候变化和大气环流的变化有关。对于委内瑞拉云雾森林中的 15 种植物，我们记录了 1983 年至 2017 年 35 年时间序列中每月花卉和水果群落组成的巨大变化，这些变化与气温升高、降水减少和土壤可用水量减少直接相关。这里记录的模式并不反映温带地区的趋势，而是证实了亚洲热带地区的结果。预计该地区将发生更严重的干旱，这将导致花卉和水果供应量发生巨大变化。
The potential effects of climate change on plant reproductive phenology include asynchronies with pollinators and reductions in plant fitness, leading to extinction and loss of ecosystem function. In particular, plant phenology is sensitive to extreme weather events, which are occurring with increasing severity and frequency in recent decades and are linked to anthropogenic climate change and shifts in atmospheric circulation. For 15 plant species in a Venezuelan cloud forest, we documented dramatic changes in monthly flower and fruit community composition over a 35‐year time series, from 1983 to 2017, and these changes were linked directly to higher temperatures, lower precipitation, and decreased soil water availability. The patterns documented here do not mirror trends in temperate zones but corroborate results from the Asian tropics. More intense droughts are predicted to occur in the region, which will cause dramatic changes in flower and fruit availability.