Figure 1

(A) Map of sampling localities relative to known distribution for 8 American Toads (Bufo [= Anaxyrus] americanus), 48 Houston toads (B. houstonensis), 18 Woodhouse’s Toads (B. woodhousii), and 19 Gulf Coast Toads (B. nebulifer). (B) The study included 48 samples of B. houstonensis from Bastrop, Lee, Austin, Leon, Milam, and Robertson counties within species range. © 2020 Texas Department of Transportation, U.S. Census, TomTom North America, Inc., U. S. Department of Agriculture, National Agricultural Statistics Service, and Global Biodiversity Information Facility (https://www.gbif.org/species/2422886; 2422872; 5217017; 2422404).