Ecological Conditions and Association Patterns
Neither rainfall, nor young leaf availability were strongly associated
network measures, either at the network level or the node level (Tables
1 & 2; Fig. 3). However, association patterns did correlate with fruit
availability. At the network level, fruit availability was weakly but
positively associated with both network density and clustering
coefficient (Table 1; Fig. 3). At the node-level, fruit availability
showed a strong positive relationship with both strength and degree
(Table 2); Fig. 3). Thus, core units are more likely to associate with
one another, and to form larger aggregations when fruits are abundant,
but decrease associations when fruit is scarce (Fig. 3a).
Table 1. Impact that ecological variables (i.e., food
availability and rainfall) had on social network measures (i.e., density
and clustering coefficient) of Colobus angolensis ruwenzorii core
units at Nabugabo, Uganda at the network level from Aug. 2017 to May
2019. Note that in the model, all ecological variables were scaled.