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Geolocations used in MaxEnt modeling to predict suitable habitat in California for four Amblyomma tick species: (a) A. americanum, (b) A. maculatum, (c) A. cajennense, and (d) A. mixtum. Presence geolocations (yellow circles) were obtained from the published literature and open access databases, and background geolocations (blue squares) were simulated according to assumed presence sampling bias.
