DIVDROP analysis - a new method for the interpretation of species importance in diversity changes

Rajczy, M. and Padisák, Judit (1983) DIVDROP analysis - a new method for the interpretation of species importance in diversity changes. ANNALES HISTORICO-NATURALES MUSEI NATIONALIS HUNGARICI - A MAGYAR TERMÉSZETTUDOMÁNYI MÚZEUM ÉVKÖNYVE, 75. pp. 97-105. ISSN 0521-4726

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Abstract

With the aid of a new method named DIVDROP, the process of changes in diversity can be analysed as a trend. The importance of the species can be estimated in shaping the great changes in the value of the diversity. The method is demonstrated on two vegetational examples: 1. on algological samples taken in 30 consecutive days from Lake Balaton and 2. on 20 consecutive releves of Salvio-Festucetum along a forest road. In both cases a large proportion of diversity changes proved to be satisfactory explained by using the DIVDROP method. A computer programme written in FORTRAN-IV language is part of the BP programme package of the Hungarian Natural History Museum. With 12 figures.

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