Fig. 2From: Lyme disease risk in southern California: abiotic and environmental drivers of Ixodes pacificus (Acari: Ixodidae) density and infection prevalence with Borrelia burgdorferi Density (a) and peak density (b) of adult I. pacificus in 2013–2014 plotted against the position of each sampled plot in the first PLSR component; and residual variation in density (c) and residual variation in peak density (d) plotted against the position of each sampled plot in the second PLSR component. Correlation coefficients and P-values are presented in each panelBack to article page