Results of principle components analysis on life history variables used by Huang et al.

[22] and in the more inclusive data set (all variables). Vectors show the mapping of the original variables onto the first two principle component axes (PC1 and PC2). Host species are given by the following notation: OV = Odocoileus virginianus; PrL = Procyon lotor; MM = Mephitis mephitis; DV = Didelphis virginiana; ScC = Sciurus carolinensis; TS = Tamias striatus; BB = Blarina brevicauda; SoC = Sorex cinereus; and PeL = Peromyscus leucopus.