Map of B. burgdorferi surveillance in ticks and mice in British Columbia. Land cover type (a), ecological niche model for B. burgdorferi (b), mice (c), and ticks (d) captured from study locations. The sampling sites of Belcarra, Nanaimo, Squamish, and West Vancouver were dominated with needle leaf coniferous forest (predominantly western hemlock [Tsuga heterophylla], Douglas fir [Pseudotsuga menziesii], and western red cedar [Thuja plicata]); Burnaby Mountain, Cultus Lake, Coquitlam, Duncan, and Sechelt sites were mixed deciduous and coniferous forest (predominantly red alder [Alnus rubra], trembling aspen [Populus tremuloides], and western hemlock); and Cranbrook, Okanagan, and Penticton sites were sparsely vegetated (low-lying brush or scrub and lodgepole pine [Pinus contorta]). Map data sources: BCCDC, European Space Agency (ESA), National Geographic, Esri, DeLorme, HERE, United Nations Environment Programme–World Conservation Monitoring Centre (UNEP-WCMC), US Geological Survey (USGS), National Aeronautics and Space Administration (NASA), Japan Ministry of Economy, Trade and Industry (METI), Natural Resources Canada (NRCan), General Bathymetric Chart of the Oceans (GEBCO), Natinoal Oceanic and Atmospheric Administration (NOAA), and increment P Corp.