Texas Parks and Wildlife Department (TPWD) identified over 1,300 Species of Greatest Conservation Need (SGCN) in their Texas Conservation Action Plan (TCAP) 1. Understanding their geographic distributions is critical to efficient and effective management of these species. Occurrence data held in public databases (i.e., “dot maps”) provide an incomplete picture of distribution, as these data tend to derive from opportunistic and often spatially - biased sampling. Predictive species distribution models quantify the relationships between spatially - referenced occurrence data for a species and the underlying environmental gradients, resulting in a map of predicted distribution, or potential occupancy, for a species. Such models provide a more comprehensive spatial representation of distribution that can be used to inform survey, assessment, and management of SGCNs.