1. Analysis of a non-centring coefficient provides inefficiently oriented principal axes. A similarity coefficient which is suitable for Q-type studies is described. 2. Arcsin square root ...

High-throughput sequencing methods enable characterization of microbial communities in a wide range of environments on an unprecedented scale. However, insight into microbial community composition is ...

Multi-scale ordination (MSO) deals with potential scale dependence in species assemblages by studying how results from multivariate ordination may be different at different spatial scales. MSO methods ...

In addition to providing a variety of functional and metabolic capabilities relevant to host nutrition and well-being (Sonnenburg et al., 2004; Backhed et al., 2005; Mazmanian et al., 2008), the ...