作者: Giovanni Bacaro , Margherita Gioria , Carlo Ricotta
DOI: 10.1007/S11284-013-1043-Z
关键词:
摘要: A simple analytical procedure to test for differences in beta diversity among sets of plots has been recently presented. Here, we describe an improved randomization that replaces the one previously proposed. This consists shuffling within-group dissimilarities groups and disregarding between-group dissimilarities. By repeating this operation many times, a distribution statistics under null hypothesis no mean plot-to-plot within is obtained. ensures correct model selected. To new procedure, used plant water beetle (Coleoptera) data collected from 45 permanent ponds. Beta was compared between assemblages.