期刊
ARCTIC SCIENCE
卷 8, 期 3, 页码 831-842出版社
CANADIAN SCIENCE PUBLISHING
DOI: 10.1139/as-2020-0047
关键词
climate change; Finse; ITEX; mosses; OTC
资金
- Norwegian Research Council [249902/F20]
This study examines the impact of nearly two decades of experimental and ambient warming on the bryophyte community structure in an alpine heath in Finse, southwest Norway. The findings suggest that bryophytes show a positive response to ambient warming, with increased abundance, species richness, and evenness over time. However, this increase is suppressed in experimentally warmed plots compared to control plots.
Alpine and Arctic bryophytes have been found to respond negatively to climate change, but as they are often analysed as one functional group, there is limited knowledge on species-specific responses. In this study, we examine how nearly two decades of experimental warming by open-top chambers and ambient warming have affected the bryophyte community structure in an alpine Dryas octopetala L. heath in Finse, southwest Norway. In contrast to what we expected, we found that bryophyte abundance, species richness, and evenness increased over time in the control plots, indicating a positive response to ambient warming. However, the increase in bryophyte abundance and cover was suppressed in experimentally warmed plots compared with control plots. Bryophyte community composition changed in a similar direction in response to both ambient and experimental warming. Acrocarpous mosses were not affected stronger by warming than pleurocarpous mosses, but individual species and taxa showed contrasting responses. Our study highlights the importance of studying bryophyte responses to environmental change, as well as combining long-term observations with experimental warming.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据