Figure 2.

Phylogenetic relationships of the 12 parasite lineages infecting black throated blue warblers (see §2). Parasite lineage numbers were ranked from least abundant (1) to most abundant (12). Parasite abundance was uncorrelated with phylogeny (C_stat=0.1183, p=0.283). Whether a parasite lineage is geographically widespread or restricted is also not explained by phylogenetic relationships (C_stat=0.0212, p=0.416). The presence of each parasite lineage in four North American locations plus the Greater Antilles is indicated by black solid fill. W, western; N, northern; C, central; S, southern; GA, Greater Antilles; no., number of representative sequences for each lineage from North American sample.