Fig. 2

Distributions of differences between estimated Borrelia burgdorferi infection prevalence (posterior distributions) in nymphs between invaded and uninvaded forest fragments (a) and within invaded forests, between ticks captured within Rosa multiflora and outside of it (b). Y-axes display the density of samples from posterior distributions. Between invaded and uninvaded forests (a), there is 97% probability that B. burgdorferi prevalence is greater in invaded forests. Within invaded forests (b), there is only 64% probability that B. burgdorferi prevalence is lower within R. multiflora stands. Thus, we find support for a difference in B. burgdorferi prevalence at the forest-fragment scale (a), but not within invaded fragments (b)