Abstract
The use of mathematical methods based on Shannon's entropy function is proposed for the evaluation of the consequences of sampling unit size and for the study of vegetation succession. The concept of diversity is extended to sets of phytosociological relevés under the term florula diversity. It is shown that Shannon's entropy as well as two other related characteristic functions can express the local behaviour and overall relationships of species. Characteristic areas are defined in terms of the maxima and minima of these functions. Several study areas yielded the data which are used in the examples. Some theoretical problems of the methods are discussed and a computer, written in FORTRAN, is described.
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Nomenclature follows Stojanov et al. (1966–67) for taxa and Soó (1964) for syntaxa.
We are much indebted to Prof. L. Orlóci, University of Western Ontario, for his critical review of the manuscript. We also thank N. Kenkel, University of Western Ontario, and a referee of the first draft of the paper, for their comments and suggestions.
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Juhász-Nagy, P., Podani, J. Information theory methods for the study of spatial processes and succession. Vegetatio 51, 129–140 (1983). https://doi.org/10.1007/BF00129432
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DOI: https://doi.org/10.1007/BF00129432