Statistical Analysis of the Results of Multivariate Ordination as Exemplified by Data on River Benthic Communities

被引:1
|
作者
Shitikov, V. K. [1 ]
Zinchenko, T. D. [1 ]
Abrosimova, E. V. [1 ]
机构
[1] Russian Acad Sci, Inst Ecol Volga Basin, Tolyatti 445003, Russia
基金
俄罗斯基础研究基金会;
关键词
running-water ecosystems; macrozoobenthos; multivariate ordination; statistical significance; bootstrap method;
D O I
10.1134/S1067413612010146
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
The use of different methods of multivariate ordination for the analysis of the distribution pattern of benthic habitats along the gradient of a river ecosystem is considered. Problems of determination of homogenous segments of a stream are discussed using macrozoobenthos communities of small rivers of the lower Volga Basin as examples. A method for estimating the ordination quality criterion based on comparison with the null model and the use of bootstrap procedures is described. The dependence of statistical inferences on the level of detail of the original data, hydrobiological survey parameters, and similarity metric equations is analyzed.
引用
收藏
页码:137 / 141
页数:5
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