Open AccessSpecies frequency distribution as a function of the surface area
Author(s) -
Anna J. Kwiatkowska
Publication year - 2014
Publication title -
acta societatis botanicorum poloniae
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 29
eISSN - 2083-9480
pISSN - 0001-6977
DOI - 10.5586/asbp.1984.010
Subject(s) - frequency distribution , pearson product moment correlation coefficient , statistics , mathematics , statistical analysis , distribution (mathematics) , empirical distribution function , frequency analysis , surface (topology) , physics , mathematical analysis , geometry
Paper deals with the results of statistical analysis of the type of frequency distribution of species occuring in the field layers of two forest phytocoenoses. In the both cases frequency distributions were ranged out for the surface area of 1, 2, 4, 8, 16, 32 and 64 m2. The types of frequency distributions were determined on the grounds of the values of Fisher's and Pearson's K coefficients. Analysed distributions were classified into Pearson's system. Also the size of the sample plot at which the empirical frequency distributions were symetrical, from the statistical point of view, nad where they were U-shaped was determined