Testing for differences in beta diversity from plot-to-plot dissimilarities |
| |
Authors: | Giovanni Bacaro Margherita Gioria Carlo Ricotta |
| |
Institution: | (1) BIOCONNET, Biodiversity and Conservation Network, Department of Environmental Science “G. Sarfatti”, University of Siena, Via P. A. Mattioli 4, 53100 Siena, Italy;(2) School of Agriculture, Food Science and Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland;(3) Ecology, Department of Biology, University of Konstanz, 78457 Konstanz, Germany;(4) Department of Plant Biology, University of Rome ‘La Sapienza’, Piazzale Aldo Moro 5, 00185 Rome, Italy |
| |
Abstract: | The central role of beta diversity in describing biodiversity patterns has been investigated in many fields of ecology and
biogeography. While a variety of measures of beta diversity have been proposed over the past five decades, the question of
how to test for differences in beta diversity among different sets of sampling plots has been addressed only rarely. Here,
we describe a simple analytical procedure to test for differences in beta diversity among distinct sets of plots. The advantage
of this approach compared to methods that have been previously proposed lies in its randomization procedure. Such a procedure
creates a distribution of null values of the test statistic that is compatible with the null hypothesis of no significant
difference in multivariate dispersion between the groups. The proposed test was illustrated using a large dataset of plant
and water beetle (Coleoptera) assemblages collected from 45 farmland ponds in Ireland. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|