Evaluation of Ordination Techniques

摘要: Historically, ordination techniques have had a number of sources (Whittaker 1967), from early work in direct gradient analysis (articles 2 and 4) the use similarity measurements various schools 5 6) to development Wisconsin polar its modifications (article 7) introduction multivariate other fields 8 9) testing these new appropriate ecological data research purposes 10 11). The following article contains brief summary this history (11.2). combinations different approaches, algorithms, coefficients, criteria for axis determination provide an uncountable possible techniques. Summarization range evaluation their usefulness natural communities are needed. We consider here how affected by peculiarities community data, they can be evaluated, what recommendations on offered.