Range of diversity curves

PRIMER plots a range of what might be termed diversity curves, under the Plots>Geometric Class Plot and Dominance Plot menus, obtained when the active window is a data matrix, and these are described in Chapter 8 of CiMC. They display a combination of evenness and richness components of diversity in a more continuous way than is achieved by a single index and, in the case of ABC (Abundance-Biomass Comparison) curves, incorporate both abundance and biomass components of the assemblage in a single plot. The multiple ABC plots (one for each sample, matched over the abundance and biomass arrays) are now held in a v7 multi-plot. Factor levels can be identified on the plots by symbols/line types and a structure for testing dominance plot differences over sites/ times/treatments etc, facilitated by Analyse>DOMDIS, generates a triangular matrix of between-curve distances which can be input to ANOSIM (Section 9). Richness (S) estimators are provided in Analyse>Species-Accum Plot, which (as elsewhere) supplements the plot by sending statistics to a new worksheet, making it easy to export information from PRIMER to other software. (There are effectively no changes of functionality for the routines in this section, by comparison with v6).


Revision #1
Created 7 November 2024 20:05:21 by Arden
Updated 7 November 2024 20:07:53 by Arden