Arid
DOI10.1007/s11258-010-9825-7
Indicator species and functional groups as predictors of proximity to ecological thresholds in Mongolian rangelands
Sasaki, Takehiro1; Okubo, Satoru2; Okayasu, Tomoo2; Jamsran, Undarmaa3; Ohkuro, Toshiya2; Takeuchi, Kazuhiko2
通讯作者Sasaki, Takehiro
来源期刊PLANT ECOLOGY
ISSN1385-0237
EISSN1573-5052
出版年2011
卷号212期号:2页码:327-342
英文摘要

We focused on responses to grazing by individual species and functional groups in relation to ecological thresholds in Mongolian rangelands, with repeated measures from the same ecological sites to account for rainfall variability. At all sites, even under rainfall fluctuations, there were robust combinations of indicator species that could be used to forewarn managers to take action to minimize the probability of crossing ecological thresholds. Depending on the landscape condition of each site, the cover of functional groups, which shared traits of perennial life history, grass or forb growth form, linear leaf shape, and alternate leaf attachment, or the cover of functional groups of woody shrubs dramatically decreased before an ecological threshold was crossed. Thus, across all sites, the responses of certain functional groups to grazing appeared to predict the crossing of an ecological threshold. The ecological indicators derived in this study should help to improve land managers’ ability to prevent adverse changes in states before ecological thresholds are reached.


英文关键词Arid and semi-arid rangelands Ecological threshold Mongolia Non-equilibrium dynamics Plant traits Sustainable management
类型Article
语种英语
国家Japan ; Mongolia
收录类别SCI-E
WOS记录号WOS:000287708900014
WOS关键词VEGETATION DYNAMICS ; PLANT TRAITS ; TRANSITION MODELS ; GRAZING GRADIENT ; WATER SOURCES ; NONEQUILIBRIUM ; LIVESTOCK ; RESPONSES ; STATE ; EQUILIBRIUM
WOS类目Plant Sciences ; Ecology ; Forestry
WOS研究方向Plant Sciences ; Environmental Sciences & Ecology ; Forestry
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/170024
作者单位1.Tohoku Univ, Grad Sch Life Sci, Aoba Ku, Sendai, Miyagi 9808578, Japan;
2.Univ Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, Tokyo 1138657, Japan;
3.Mongolian State Univ Agr, Ctr Ecosyst Study, Ulaanbaatar 210153, Mongolia
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Sasaki, Takehiro,Okubo, Satoru,Okayasu, Tomoo,et al. Indicator species and functional groups as predictors of proximity to ecological thresholds in Mongolian rangelands[J],2011,212(2):327-342.
APA Sasaki, Takehiro,Okubo, Satoru,Okayasu, Tomoo,Jamsran, Undarmaa,Ohkuro, Toshiya,&Takeuchi, Kazuhiko.(2011).Indicator species and functional groups as predictors of proximity to ecological thresholds in Mongolian rangelands.PLANT ECOLOGY,212(2),327-342.
MLA Sasaki, Takehiro,et al."Indicator species and functional groups as predictors of proximity to ecological thresholds in Mongolian rangelands".PLANT ECOLOGY 212.2(2011):327-342.
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