Functional rarefaction for species abundance data

摘要: Summary 1. Recently a number of rarefaction curves including information on species’ functional traits were proposed for those measures diversity that monotonically increase with species richness. 2. Building these methods, in this paper, we propose curve abundance data is obtained using the classical decomposition Rao quadratic into alpha, beta and gamma diversity. 3. The abundance-based illustrated one dedicated case study sand dune communities Italy. 4. Although put emphasis only, because its mathematical generality, method can be extended to virtually any abundance-weighted concave measure comparing among habitats sampled different effort.