GSTDTAP  > 气候变化
DOI10.1111/gcb.14506
The influence of climatic legacies on the distribution of dryland biocrust communities
Eldridge, David J.1; Delgado-Baquerizo, Manuel2,3
2019
发表期刊GLOBAL CHANGE BIOLOGY
ISSN1354-1013
EISSN1365-2486
出版年2019
卷号25期号:1页码:327-336
文章类型Article
语种英语
国家Australia; Spain; USA
英文摘要

Predicting the distribution of biocrust species, mosses, lichens and liverworts associated with surface soils is difficult, but climatic legacies (changes in climate over the last 20 k years) can improve our prediction of the distribution of biocrust species. To provide empirical support for this hypothesis, we used a combination of network analyses and structural equation modelling to identify the role of climatic legacies in predicting the distribution of ecological clusters formed by species of mosses, lichens and liverworts using data from 282 large sites distributed across 0.6 million km(2) of eastern Australia. Two ecological clusters contained 87% of the 120 moss, lichen and liverwort species. Both clusters contained lichen, moss and liverwort species, but were dominated by different families. Sites where the air temperature increased the most over 20k years (positive temperature legacies) were associated with reductions in the relative abundance of species from the lichen (Peltulaceae and Teloschistaceae) and moss (Bryaceae) families (Cluster A species), greater groundstorey plant cover and lower soil pH. Sites where precipitation has increased over the past 20k years (positive precipitation legacy) were associated with increases in the relative abundance of lichen (Cladoniaceae, Lecideaceae and Thelotremataceae) and moss (Pottiaceae) families (Cluster B species) and lower levels of soil pH. Sites where temperatures have increased the most in the past 20k years suppressed the negative effects of plant cover on Cluster B by reducing plant cover. Increased intensity of grazing suppressed the negative effect of soil pH and the positive effect of soil carbon, on the relative abundance of Cluster B taxa. Finally, increasing temperature and precipitation legacies reduced the negative effect of soil pH on Cluster B. Understanding of the importance of climatic legacies improves our ability to predict how biocrust assemblies might respond to ongoing global environmental change associated with increasing land use intensification, increasing temperature and reduced rainfall.


英文关键词bryophyte drylands ecological clusters lichen liverwort soil crust
领域气候变化 ; 资源环境
收录类别SCI-E
WOS记录号WOS:000453370700027
WOS关键词BIOLOGICAL SOIL CRUSTS ; FLORISTICS ; LICHENS ; DISTURBANCE ; BRYOPHYTES ; PATTERNS ; MOSS ; DIVERSITY ; EVOLUTION ; IMPACTS
WOS类目Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
引用统计
被引频次:23[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/17756
专题气候变化
资源环境科学
作者单位1.Univ New South Wales, Sch Biol Earth & Environm Sci, Ctr Ecosyst Sci, Sydney, NSW, Australia;
2.Univ Rey Juan Carlos, Escuela Super Ciencias Expt & Tecnol, Dept Biol & Geol, Fis & Quim Inorgan, Mostoles, Spain;
3.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
推荐引用方式
GB/T 7714
Eldridge, David J.,Delgado-Baquerizo, Manuel. The influence of climatic legacies on the distribution of dryland biocrust communities[J]. GLOBAL CHANGE BIOLOGY,2019,25(1):327-336.
APA Eldridge, David J.,&Delgado-Baquerizo, Manuel.(2019).The influence of climatic legacies on the distribution of dryland biocrust communities.GLOBAL CHANGE BIOLOGY,25(1),327-336.
MLA Eldridge, David J.,et al."The influence of climatic legacies on the distribution of dryland biocrust communities".GLOBAL CHANGE BIOLOGY 25.1(2019):327-336.
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