TY - RPRT TI - Gap Analysis Project (GAP) Terrestrial Vertebrate Species Richness Maps for the Conterminous U.S. AU - Kevin J. Gergely AU - Kenneth G. Boykin AU - Alexa McKerrow AU - Matthew J. Rubino AU - Nathan M. Tarr AU - Steven G. Williams PY - 2019 DO - 10.3133/sir20195034 UR - https://pubs.usgs.gov/publication/sir20195034 ID - sir20195034 ER -