期刊
ECOLOGY LETTERS
卷 25, 期 9, 页码 2009-2021出版社
WILEY
DOI: 10.1111/ele.14082
关键词
biodiversity; climate change; defaunation; functional trait; insect apocalypse; insect declines; population trend
类别
资金
- Ministry of the Environment
This study analyzed a 14-year extensive research on ground-dwelling beetles in four natural forest biomes spanning Japan's entire latitudinal range. The findings showed that beetle species richness, abundance, and biomass decreased in evergreen coniferous forests but increased in broadleaf-coniferous mixed forests. Furthermore, beetles in evergreen coniferous forests responded negatively to increased temperature and precipitation anomalies, indicating that climate change is altering forest ecosystems fundamentally.
Concerning declines in insect populations have been reported from Europe and the United States, yet there are gaps in our knowledge of the drivers of insect trends and their distribution across the world. We report on our analysis of a spatially extensive, 14-year study of ground-dwelling beetles in four natural forest biomes spanning Japan's entire latitudinal range (3000 km). Beetle species richness, abundance and biomass declined in evergreen coniferous forests but increased in broadleaf-coniferous mixed forests. Further, beetles in evergreen coniferous forests responded negatively to increased temperature and precipitation anomalies, which have both risen over the study's timespan. These significant changes parallel reports of climate-driven changes in forest tree species, providing further evidence that climate change is altering forest ecosystems fundamentally. Given the enormous biodiversity and ecosystem services that forests support globally, the implications for biodiversity change resulting from climate change could be profound.
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