Marc T. J. Johnson and Anurag A. Agrawal. 2005. Plant genotype and environment interact to shape a diverse arthropod community on evening primrose (Oenothera biennis). Ecology 86:874–885.

Appendix B (Table B1). Plant genetic and environmental effects on the richness and abundance of herbivores, omnivores, and predators.

		Herbivore		Omnivore		Predator
		/F	P	/F	P	/F	P
Richness
	Habitat(H)	7.1	0.001	155.2	<0.001	57.5	<0.001
	Microhabitat(M)[H]	23.9	<0.001	10.7	0.001	4.3	0.019
	Genotype(G)	12.0	<0.001	0	-	0.1	0.376
	G × H	3.3	0.035	9.6	0.001	0.5	0.24
	G × M[H]	1.0	0.159	0	-	0.8	0.186
Abundance
	H	11.5	<0.001	163.7	<0.001	35.9	<0.001
	M[H]	39.7	<0.001	42.5	<0.001	11.5	<0.001
	G	15.6	<0.001	0	-	0	-
	G × H	7.0	0.004	63.8	<0.001	2.8	0.047
	G × M[H]	0.7	0.201	0	-	0.3	0.292

   Notes: F values were calculated for the fixed effect of habitat, while Chi-squared values were calculated for the random effects (all other factors). P values for the random effects were determined using restricted maximum likelihood and the log likelihood ratio test (Littell et al. 1996) . Effects significant at P < 0.05 are in bold. Squared brackets indicate nesting.  Dashes indicate undefined P values where the variance component was equal to 0.

LITERATURE CITED

Littell, R. C., G. A. Milliken, W. W. Stroup, and R. D. Wolfinger. 1996. SAS System for mixed models. SAS Institute, Inc., Cary, North Carolina, USA.