Survey locations.

2019-03-07T18:35:45Z (GMT) by Rachel B. Anderson
<p>Field sites for a study of native California Red-legged Frogs (<i>Rana draytonii</i>) and invasive American Bullfrogs (<i>Lithobates catesbeianus</i>), examining the role of habitat factors in coexistence or exclusion of these two species. Created using USGS National Map Viewer.</p>