Article

Ordination Analysis

David J. Gibson

in Ecology

ISBN: 9780199830060
Published online May 2012 | | DOI: http://dx.doi.org/10.1093/obo/9780199830060-0003
Ordination Analysis

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  • Applied Ecology (Environmental Science)
  • Ecology and Conservation
  • Plant Ecology
  • Zoology and Animal Sciences

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Ordination is a multivariate method of gradient analysis and data reduction in which the distribution of samples, often sample plots characterized by the abundance of individual species or life forms, or the value of environmental variables, is arranged in a few dimensions based on eigenanalysis or the similarity (often dissimilarity) among samples (i.e., a resemblance, correlation, or covariance matrix). The method allows hypotheses to be generated about the relationship between the species composition of a site and potentially explanatory characteristics of the environment. Since its introduction in the ecological literature in the early 1950s, ecologists have embraced several approaches to ordination analysis, which are listed here. There is often controversy in the literature about which method to use; whether or not to use direct or indirect, or constrained or unconstrained approaches; and which software to use.

Article.  11185 words. 

Subjects: Applied Ecology (Environmental Science) ; Ecology and Conservation ; Plant Ecology ; Zoology and Animal Sciences

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