Hi listers, I have species and environmental data for 24 sites that were sampled thrice. If I want to analyze the data with NMDS I could run metaMDS on the whole dataset (24 sites x 3 times = 72) and then fit environmental data, but this would be some kind of pseudoreplication given that the samplings are not independent and the gradients may be overestimated, wouldn`t it?
For environmental data a factor could be included for the sampling dates - but this would not be possible for species data. Is there an elegant way either to aggregate data before ordination or to conduct sth. like a repeated measures NMDS? Thank you in advance, Eduard Szöcs _______________________________________________ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
