Ecological drivers of tree assemblage in tropical, subtropical and subalpine forests
文献类型:期刊论文
作者 | Asefa, Mengesha4; Wen, Han-Dong; Brown, Calum3; Cao, Min; Xu, Kun2; Hu, Yue-Hua |
刊名 | JOURNAL OF VEGETATION SCIENCE |
出版日期 | 2020 |
期号 | x页码:x |
ISSN号 | 1100-9233 |
关键词 | community assembly dispersal process ecological drivers environment life stages subalpine forest subtropical forest summary statistics tropical forest |
DOI | 10.1111/jvs.12819 |
英文摘要 | Aims It is widely accepted that deterministic and neutral dispersal processes are two of the principal mechanisms driving community assembly. However, the relative importance of these ecological drivers between distinct life stages both at community and individual species levels remains poorly understood in different vegetation types. Here, we address the following questions: (a) is there a ubiquitous process shaping tree assemblage; (b) how does the relative importance of environmental and dispersal processes vary through ontogeny in different vegetation types; and (c) will the spatial patterns of trees at community and individual species levels reflect similar contribution between ecological processes? Location Yunnan province, southwest China. Methods We used the Homogeneous Poisson, Homogeneous Thomas, Inhomogeneous Poisson, and Inhomogeneous Thomas point process models to predict the effect of stochastic, dispersal and/or environmental processes, respectively, on the distribution of trees across ontogeny in tropical, subtropical and subalpine forests. To evaluate the relative importance of models, we compared the observed and simulated patterns of the species-area relationship and the pair correlation function g(r) at community and species level, respectively. Results The Homogeneous Thomas model was the model with the lowest Akaike information criterion (AIC) scores across ontogeny and forest types at community level. At the species level, however, Homogeneous Thomas, and Inhomogeneous Thomas predicted the distribution of large and small trees, respectively, with lower AIC values in two of our three plots. In the third plot, the Homogeneous Thomas model is dominant across ontogeny at the species level. Conclusions Tree communities are assembled mainly by the dispersal process at community level. The relative importance of ecological processes for species distribution varies across life stages at the species level, suggesting that there is an ontogenetic shift of ecological processes in shaping tree distribution. Using different summary statistics at both community and species levels helps to discern the different spatial structures of species and increases our appreciation of the processes underpinning community assembly. |
学科主题 | Plant Sciences ; Environmental Sciences & Ecology ; Forestry |
语种 | 英语 |
WOS记录号 | WOS:000497745200001 |
源URL | [http://ir.xtbg.org.cn/handle/353005/11547] |
专题 | 西双版纳热带植物园_森林生态研究组 |
作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, Lijiang Forest Ecosyst Res Stn, Lijiang, Peoples R China 2.Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Atmospher Environm Res IMK IFU, Garmisch Partenkirchen, Germany 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Mengla 666303, Yunnan, Peoples R China |
推荐引用方式 GB/T 7714 | Asefa, Mengesha,Wen, Han-Dong,Brown, Calum,et al. Ecological drivers of tree assemblage in tropical, subtropical and subalpine forests[J]. JOURNAL OF VEGETATION SCIENCE,2020(x):x. |
APA | Asefa, Mengesha,Wen, Han-Dong,Brown, Calum,Cao, Min,Xu, Kun,&Hu, Yue-Hua.(2020).Ecological drivers of tree assemblage in tropical, subtropical and subalpine forests.JOURNAL OF VEGETATION SCIENCE(x),x. |
MLA | Asefa, Mengesha,et al."Ecological drivers of tree assemblage in tropical, subtropical and subalpine forests".JOURNAL OF VEGETATION SCIENCE .x(2020):x. |
入库方式: OAI收割
来源:西双版纳热带植物园
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