Fig. 4 in From forests to cattail: how does the riparian zone influence stream fish?

Fig. 4. Biplot resulting from Nonmetric Multidimensional Scaling Analysis (NMDS) with presence and absence data showing ordination of sample units that represent each stream group: preserved (PRE, open circles), intermediate (INT, dark circles), and degraded sites (DEG, triangles). NMDS biplot exhibited stress value of 0.15 in 2-dimension, indicating good to potential useful interpretation (Clarke & Warwick, 2001).