ITPCAS OpenIR  > 图书馆
Increased stem density and competition may diminish the positive effects of warming at alpine treeline
Wang, YF (Wang, Yafeng)1; Pederson, N (Pederson, Neil)2; Ellison, AM (Ellison, Aaron M.)2; Buckley, HL (Buckley, Hannah L.)2,3; Case, BS (Case, Bradley S.)2,4; Iang, EL (Iang, Eryuan L.)1,5; Camarero, JJ (Camarero, J. Julio)6; Ellison, AM
Source PublicationECOLOGY
2016
Volume97Issue:7Pages:1668-1679
DOI10.1890/15-1264.1
AbstractThe most widespread response to global warming among alpine treeline ecotones is not an upward shift, but an increase in tree density. However, the impact of increasing density on interactions among trees at treeline is not well understood. Here, we test if treeline densification induced by climatic warming leads to increasing intraspecific competition. We mapped and measured the size and age of Smith fir trees growing in two treelines located in the southeastern Tibetan Plateau. We used spatial point-pattern and codispersion analyses to describe the spatial association and covariation among seedlings, juveniles, and adults grouped in 30-yr age classes from the 1860s to the present. Effects of competition on tree height and regeneration were inferred from bivariate mark-correlations. Since the 1950s, a rapid densification occurred at both sites in response to climatic warming. Competition between adults and juveniles or seedlings at small scales intensified as density increased. Encroachment negatively affected height growth and further reduced recruitment around mature trees. We infer that tree recruitment at the studied treelines was more cold-limited prior to 1950 and shifted to a less temperature-constrained regime in response to climatic warming. Therefore, the ongoing densification and encroachment of alpine treelines could alter the way climate drives their transitions toward subalpine forests.
Subject Area自然地理学
WOS IDWOS:000379323800005
Language英语
Indexed BySCI
KeywordTibetan Plateau Climate-change Seedling Recruitment Spatial-patterns Temperature Mountains Dynamics China Facilitation Survival
Cooperation Status国际
Department环境
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7665
Collection图书馆
Corresponding AuthorEllison, AM
Affiliation1.Chinese Acad Sci, Key Lab Alpine Ecol & Biodivers, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China
2.Harvard Univ, Harvard Forest, 324 North Main St, Petersham, MA 01366 USA
3.Lincoln Univ, Dept Ecol, Lincoln 7647, New Zealand
4.Lincoln Univ, Dept Informat & Enabling Technol, Lincoln 7647, New Zealand
5.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
6.IPE CSIC, Ave Montanana 1005, Zaragoza 50059, Spain
Recommended Citation
GB/T 7714
Wang, YF ,Pederson, N ,Ellison, AM ,et al. Increased stem density and competition may diminish the positive effects of warming at alpine treeline[J]. ECOLOGY,2016,97(7):1668-1679.
APA Wang, YF .,Pederson, N .,Ellison, AM .,Buckley, HL .,Case, BS .,...&Ellison, AM.(2016).Increased stem density and competition may diminish the positive effects of warming at alpine treeline.ECOLOGY,97(7),1668-1679.
MLA Wang, YF ,et al."Increased stem density and competition may diminish the positive effects of warming at alpine treeline".ECOLOGY 97.7(2016):1668-1679.
Files in This Item:
File Name/Size DocType Version Access License
V.97(7) 1668-1679 20(1571KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, YF (Wang, Yafeng)]'s Articles
[Pederson, N (Pederson, Neil)]'s Articles
[Ellison, AM (Ellison, Aaron M.)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, YF (Wang, Yafeng)]'s Articles
[Pederson, N (Pederson, Neil)]'s Articles
[Ellison, AM (Ellison, Aaron M.)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, YF (Wang, Yafeng)]'s Articles
[Pederson, N (Pederson, Neil)]'s Articles
[Ellison, AM (Ellison, Aaron M.)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: V.97(7) 1668-1679 2016.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.