Google Search Baidu Search
(多个关键字请用"空格"格开)
您当前的位置:首页 > 科研成果 > 论文
论文

Size-Class Effect Contributes to Tree Species Assembly through Influencing Dispersal in Tropical Forests 

 
论文编号:
作者: Hu YH
刊物名称: PLoS ONE
所属学科:
论文题目英文: Size-Class Effect Contributes to Tree Species Assembly through Influencing Dispersal in Tropical Forests
年: Sep 2014
卷: 9
期: 9
页: e108450
联系作者: Cao M
收录类别:
影响因子: 3.534
参与作者:
备注:
摘要: We have investigated the processes of community assembly using size classes of trees. Specifically our work examined (1) whether point process models incorporating an effect of size-class produce more realistic summary outcomes than do models without this effect; (2) which of three selected models incorporating, respectively environmental effects, dispersal and the joint-effect of both of these, is most useful in explaining species-area relationships (SARs) and point dispersion patterns. For this evaluation we used tree species data from the 50-ha forest dynamics plot in Barro Colorado Island, Panama and the comparable 20 ha plot at Bubeng, Southwest China. Our results demonstrated that incorporating an sizeclass effect dramatically improved the SAR estimation at both the plots when the dispersal only model was used. The joint effect model produced similar improvement but only for the 50-ha plot in Panama. The point patterns results were not improved by incorporation of size-class effects using any of the three models. Our results indicate that dispersal is likely to be a key process determining both SARs and point patterns. The environment-only model and joint-effects model were effective at the species level and the community level, respectively. We conclude that it is critical to use multiple summary characteristics when modelling spatial patterns at the species and community levels if a comprehensive understanding of the ecological processes that shape species’ distributions is sought; without this results may have inherent biases. By influencing dispersal, the effect of size-class contributes to species assembly and enhances our understanding of species coexistence.
论文下载: 下载地址
   

关闭窗口

返回首页

CAS-MART.png
数字标本.png
东南亚中心2.jpg
前往中国植物园联盟网站
W020160606696316538360.jpg
屏幕快照 2018-07-04 09.56.59.png