Table 3. Non-focal population summary of preference for Astragalus and natal host plant, and DIC scores for constrained and non-constrained models.

Population	Test plants	N	Preference: Astragalus	Preference: Natal	Constrained DIC	Unconstrained DIC
Big Pine, CA	A.l., G.l.*, M.s.	11	0.57 (0.37, 0.73)	0.17 (0.07, 0.32)	−4.04	−11.60
Cave Lake, CA	A.w., M.s., V.a.	6	0.62 (0.44, 0.78)		5.34	−44.36
Eagle Peak, CA	A.w*.,M.s,V.a.	10	0.72 (0.56, 0.87)		−22.31	−100.63
White Mts., CA	A.w*.,M.s,G.l	15	0.64 (0.44, 0.78)		−13.06	−53.16

Host plant abbreviations are as follows: A.l., Astragalus letiginosus; A.w., A. whitneyi; G.l., Glycyrrhiza lepidota; M.s., Medicago sativa; V.a.,Vicia americana. Natal plant for Cave Lake population is not definitively known, however, it is not A. whitneyi and is most likely L. polyphyllus. Constrained model is one where preference for all plants is equal, whereas the unconstrained is one where preference is permitted to vary across host plants. DIC scores based on 40000 MCMC generations following a 10000 generation burnin.