Table 1.

Summary of linear regressions modeling the effect of an interaction on emergent community properties

Model (n = 388 interactions)	df	adjusted R2	p value
focal change ∼ total change	1	0.334	<2.2e−16
focal change ∼ n-context	5	0.083	2.2e−7
focal change ∼ total change ∗ n-context	11	0.565	<2.2e−16

“Focal change” indicates the change in density of the focal isolate in the predicted context. “Total change” indicates the change in total density between the community contexts of the interaction. “n-context” indicates the richness contexts over which the interaction was observed (as a factor). An “∗” in the model indicates an interaction term in addition to the separate effects. We modeled all 388 observed interactions. The “p value” column indicates the p value of the model itself.