Table 1.

Results from the linear mixed-effects models of biomass-adjusted consumption rates as a function of dispersal status and density, for G. fossarum (n = 73 mesocosms) and D. villosus (n = 53). Estimates and their standard errors are drawn from linear mixed-effects models. Variance associated with the random factor of replicate blocks, and its standard deviation, are reported in italics. Marginal R² (associated with fixed factors only) and conditional R² (associated with fixed and random factors) are reported for each model.

	coefficient	std error/std dev.
G. fossarum (marginal R2 = 0.18, conditional R2 = 0.46)
intercept (residents)	2.494	0.171
dispersers	−0.002	0.081
density	−0.009	0.002
variance due to replicates	0.119	0.345
D. villosus (marginal R2 = 0.78, conditional R2 = 0.78)
intercept (residents)	2.102	0.068
dispersers	0.163	0.065
density	−0.022	0.002
variance due to replicates	0	0