Geometric Models in Ecology: II. An Evaluation of Some Ordination Techniques
- 1 March 1966
- journal article
- research article
- Published by JSTOR in Journal of Ecology
- Vol. 54 (1) , 217-+
- https://doi.org/10.2307/2257668
Abstract
Theoretical considerations and a comparison using a single set of vegetational data are used to compare techniques developed by workers at the University of Wisconsin with those described in Part I. The similarity coefficient (Sorensen''s) used by these workers is shown to be non-euclidean and dependent on species number. Their use of reference stands does not provide an adequate representation of the variation between stands of vegetation. It is concluded that the previous techniques are inefficient for extracting ecological information and that principal components analysis of a new coefficient (weighted similarity coefficient) is more efficient.This publication has 7 references indexed in Scilit:
- Geometric Models in Ecology: I. The Theory and Application of Some Ordination MethodsJournal of Ecology, 1966
- Multivariate Approaches to a Limestone Grassland Community: III. A Comparative Study of Ordination and Association-AnalysisJournal of Ecology, 1965
- Multivariate Approaches to a Limestone Grassland Community: II. A Direct Species OrdinationJournal of Ecology, 1965
- Multivariate Approaches to a Limestone Grassland Community: I. A Stand OrdinationJournal of Ecology, 1965
- The Vegetation of the Ennadai Lake Area, N.W.T.: Studies in Subarctic and Arctic BioclimatologyEcological Monographs, 1965
- An Analysis of a Vegetation‐‐Microenvironmental Complex on Prairie Slopes in SaskatchewanEcological Monographs, 1964
- The Phytosociology of Boreal Conifer‐Hardwood Forests of the Great Lakes RegionEcological Monographs, 1960