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Appendix A. A table showing the eigenvalues and P values for a canonical correspondence analysis partitioning the variation in bacterial community composition between environmental and spatial factors.

TABLE A1. Results of a canonical correspondence analysis (CCA) partitioning the variation in bacterial community composition of 35 rock pools into different components. Bacterial community composition was obtained from t-RFLP analysis where peaks with an area >0.5 % of the total signal were included in the analysis. [E+S]: total variation explained; [E]: variation explained by environmental variables; [S]: variation explained by spatial variables; [E | S]: pure environmental variation that is not shared by spatial structure; [S | E]: pure spatial variation independently of any environmental factors; [ES]: the spatial structure in BCC that is shared by the environmental data; 1 – [E+S]: unexplained variation.