Fig. 8
Microbial community assembly processes and microbial co-occurrence network structure across intrinsic physiological gradients in moose. Stacked bar plots (left panels) display the proportional contribution of community assembly processes to pairwise community turnover for a) glucuronic acid-to-creatinine (GA:C) categories (low vs. high) and d) urea nitrogen-to-creatinine (UN:C) categories (low vs. high). Assembly processes are color-coded as follows: dispersal limitation (purple), drift/undominated processes (grey), homogeneous selection (orange), homogenizing dispersal (pink) and variable selection (green). Corresponding co-occurrence networks (central and right panels) show genus-level gut microbial associations inferred for b) low and c) high GA:C groups, and for e) low and f) high UN:C groups. Nodes represent gut microbial genera and are scaled according to eigenvector centrality, and edges denote significant associations (green = positive; red = negative).
