Empty circles indicate REAP sites where no instances of the species were recorded. Blue circles indicate REAP sites where instances of the species were recorded.
Red circles indicate incidental sightings of the species.
The maps shown were created by digitizing the locations of each species using the maps provided in Seabloom, R. W. et al. 1978. The new maps were checked for errors, but there is a possibility that some errors remain. A study of representative terrestrial vertebrates in the portion of the Missouri Slope south and west of the Missouri River, and McLean County, in North Dakota was undertaken in the summers of 1976 and 1977. Data were tabulated relative to species occurrence and abundance by major habitat type and geographic area. Data were collected from population sampling, existing literature, and unpublished reports and interviews.