中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 植物研究所
  3. 中国科学院植物研究所
  4. 植被与环境变化国家重点实验室
The Relative Importance of Janzen-Connell Effects in Influencing the Spatial Patterns at the Gutianshan Subtropical Forest

文献类型：期刊论文

作者Zhu, Yan; Getzin, Stephan2; Wiegand, Thorsten2; Ren, Haibao; Ma, Keping
刊名PLOS ONE
出版日期2013
卷号8期号:9
ISSN号1932-6203
DOI10.1371/journal.pone.0074560
文献子类Article
英文摘要The Janzen-Connell hypothesis is among the most important theories put forward to explain species coexistence in species-rich communities. However, the relative importance of Janzen-Connell effects with respect to other prominent mechanisms of community assembly, such as dispersal limitation, self-thinning due to competition, or habitat association, is largely unresolved. Here we use data from a 24-ha Gutianshan subtropical forest to address it. First we tested for significant associations of adults, juveniles, and saplings with environmental variables. Second we evaluated if aggregation decreased with life stage. In a third analysis we approximately factored out the effect of habitat association and comprehensively analyzed the spatial associations of intraspecific adults and offspring (saplings, juveniles) of 46 common species at continuous neighborhood distances. We found i) that, except for one, all species were associated with at least one environmental variable during at least one of their life stages, but the frequency of significant habitat associations declined with increasing life stage; ii) a decline in aggregation with increasing life stage that was strongest from juveniles to adults; and iii) intraspecific adult-offspring associations were dominated by positive relationships at neighborhood distances up to 10 m. Our results suggest that Janzen-Connell effects were not the dominant mechanisms in structuring the spatial patterns of established trees in the subtropical Gutianshan forest. The spatial patterns may rather reflect the joint effects of size-dependent self-thinning, dispersal limitation and habitat associations. Our findings contribute to a more comprehensive understanding of the relative importance of Janzen-Connell effects in influencing plant community structure under strong topographic heterogeneity.
学科主题Multidisciplinary Sciences
出版地SAN FRANCISCO
WOS关键词SPECIES-HABITAT ASSOCIATIONS ; BROAD-LEAVED FOREST ; DENSITY-DEPENDENCE ; TREE ; DIVERSITY ; RECRUITMENT ; LIMITATION ; DISPERSAL ; DISTRIBUTIONS ; CONSEQUENCES
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000324481600135
出版者PUBLIC LIBRARY SCIENCE
资助机构National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) ; Key Innovation Project of CAS(Chinese Academy of Sciences) ; State Key Laboratory of Vegetation and Environmental Change ; European Research Council (ERC)(European Research Council (ERC)) ; Direct For Biological Sciences ; Division Of Environmental Biology(National Science Foundation (NSF)NSF - Directorate for Biological Sciences (BIO))
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/27817]  
专题植被与环境变化国家重点实验室
作者单位1.UFZ Helmholtz Ctr Environm Res, Dept Ecol Modelling, Leipzig, Germany
2.Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, Yan,Getzin, Stephan,Wiegand, Thorsten,et al. The Relative Importance of Janzen-Connell Effects in Influencing the Spatial Patterns at the Gutianshan Subtropical Forest[J]. PLOS ONE,2013,8(9).
APA Zhu, Yan,Getzin, Stephan,Wiegand, Thorsten,Ren, Haibao,&Ma, Keping.(2013).The Relative Importance of Janzen-Connell Effects in Influencing the Spatial Patterns at the Gutianshan Subtropical Forest.PLOS ONE,8(9).
MLA Zhu, Yan,et al."The Relative Importance of Janzen-Connell Effects in Influencing the Spatial Patterns at the Gutianshan Subtropical Forest".PLOS ONE 8.9(2013).

入库方式： OAI收割

来源：植物研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。