For this study riparian ecosystems were defined as the transitional area between upslope and riverine ecosystems and were characterized by unique soil and vegetation. Approximately 6% of the Bighorn National Forest is riparian. In this investigation, the two primary objectives were to complete a mammalian and amphibian biodiversity inventory of the study region and to complete a cross-sectional study of the riparian zone showing the faunal and environmental changes from riverine to riparian to upland habitats.
Habitat characteristics of the specific sites were compared extensively with the results of the animal sampling data. Capture rates in the different environments were compared with one another to assess the impact of habitat characteristics on the abundance of animals. Changes and variations within the data for a specific species will be analyzed, and data from other groups (i.e. soil characteristics, hydrology, energy budget, and vegetation) were taken into account to try and justify any differences. Where applicable, findings were summarized for the purposes of submitting the US Forest Service to compliment their database concerning primitive high altitude alpine environments.