Table 4. Effects of environmental and experimental variables on community composition.

Results are from a PERMANOVA on the Bray-Curtis dissimilarity matrix of residuals from the spatial model.

	df	SS	MS	F	R2	P
Sorter	1	0.642	0.642	13.866	0.048	<0.001
Canopy openness	1	0.295	0.295	6.382	0.022	<0.001
Trophic treatment +	2	1.544	0.772	16.679	0.116	<0.001
Temperature	1	0.196	0.196	4.23	0.015	<0.001
Dispersal ++	2	0.05	0.025	0.537	0.004	0.984
Residuals	229	10.597	0.046		0.795
Total	236	13.323			1

⁺Trophic treatment levels were: control, predator addition and resource addition.

⁺⁺Dispersal levels were: control, local dispersal, regional dispersal.

P-values<0.05 are printed in bold. ndf = numerator degrees of freedom, ddf = denumerator degrees of freedom.