期刊
ECOLOGY LETTERS
卷 24, 期 6, 页码 1178-1186出版社
WILEY
DOI: 10.1111/ele.13730
关键词
Climate change; global change drivers; occupancy trends; plant distribution; range shifts
类别
资金
- Ministere de la Transition Ecologique et Solidaire [SJ 3-17]
- Program Hubert Curien Alliance 2020
- Institut de la Transition Ecologique, Sorbonne Universite
European plants are already paying a climatic debt in Alpine, Atlantic and Boreal regions, while benefitting from a climatic bonus in the Mediterranean. Climate change has become a primary driver of occupancy trends for plants, alongside other pressures such as eutrophication and urbanisation.
For many species, climate change leads to range shifts that are detectable, but often insufficient to track historical climatic conditions. These lags of species range shifts behind climatic conditions are often coined climatic debts, but the demographic costs entailed by the word debt have not been demonstrated. Here, we used opportunistic distribution data for c. 4000 European plant species to estimate the temporal shifts in climatic conditions experienced by these species and their occupancy trends, over the last 65 years. The resulting negative relationship observed between these two variables provides the first piece of evidence that European plants are already paying a climatic debt in Alpine, Atlantic and Boreal regions. In contrast, plants appear to benefit from a surprising climatic bonus in the Mediterranean. We also find that among multiple pressures faced by plants, climate change is now on par with other known drivers of occupancy trends, including eutrophication and urbanisation.
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