期刊
JOURNAL OF ECOLOGY
卷 106, 期 3, 页码 1277-1285出版社
WILEY
DOI: 10.1111/1365-2745.12903
关键词
asynchrony; biodiversity; community stability; ecosystem function and services; homogenization; metacommunity; primary productivity; spatial insurance; species richness; steppe
资金
- National Natural Science Foundation of China [31570469, 31430016]
- International Postdoctoral Exchange Fellowship Program [20170070]
- National Key R&D Program of China [2016YFC0500202, 2016YFC0500700]
- TULIP Laboratory of Excellence [ANR-10-LABX-41]
- European Union's Horizon research and innovation programme [666971]
1. A positive relationship between biodiversity and ecosystem stability has been reported in many ecosystems; however, it has yet to be determined whether and how spatial scale affects this relationship. Here, for the first time, we assessed the effects of alpha, beta and gamma diversity on ecosystem stability and the scale dependence of the slope of the diversity-stability relationship. 2. By employing a long-term (33 years) dataset from a temperate grassland, northern China, we calculated the all possible spatial scales with the complete combination from the basic 1-m(2) plots. 3. Species richness was positively associated with ecosystem stability through species asynchrony and overyielding at all spatial scales (1, 2, 3, 4 and 5 m(2)). Both alpha and beta diversity were positively associated with gamma stability. 4. Moreover, the slope of the diversity-area relationship was significantly higher than that of the stability-area relationship, resulting in a decline of the slope of the diversity-stability relationship with increasing area. 5. Synthesis. With the positive species diversity effect on ecosystem stability from small to large spatial scales, our findings demonstrate the need to maintain a high biodiversity and biotic heterogeneity as insurance against the risks incurred by ecosystems in the face of global environmental changes.
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