1. CHAPTER 23 Multivariate Experiments From: McCune, B. & J. B. Grace. 2002. Analysis of Ecological Communities. MjM Software Design, Gleneden Beach, Oregon http://www.pcord.comhttp://www.pcord.com Tables, Figures, and Equations

2. Figure 23.1. Four approaches to analysis of multivariate experiments in community ecology.

3. Figure 23.2. Comparison of data grouping for Mantel tests and MRPP.

4. Figure 23.3. Vectors representing trajectories of sample units in species space. Solid vectors represent treated sample units; dashed vectors represent controls.

5. Figure 23.4. Treatment and control vectors translated to put the tails on the centroid. Vectors represent trajectories of sample units in species space.

6. Figure 23.5. Compositional vectors first translated to put the tails on the centroid, then standardized to unit length.