Award Date


Degree Type


Degree Name

Bachelor of Arts


Environmental Science

Advisor 1

Zane Marshall, SNWA Sr Biologist, Environmental Planning

Advisor 2

Aaron Ambos, SNWA Environmental Biologist II, Environmental Planning

Advisor 3

Dr. Timothy Farnham, Department of Environmental Studies, UNLV

Number of Pages



The purpose of this study is to determine how four environmental variables: elevation, latitude, soil type, and vegetation impact the relative abundance of Peromyscus maniculatus and the species richness of small mammal populations in Eastern Nevada. In order to complete this study, a survey of small mammals was completed in the following 8 Eastern Nevada valleys: Delamar, Dry Lake, Dry Lake- Muleshoe,Cave, Lake, Snake, Spring, White River. In each valley, transects of Sherman live traps will be set up for 3 consecutive nights (O'Farrell et al 1977). Data on elevation, latitude, soil type, and vegetation were taken at each trap site. Non-parametric PLR was then used to assess which variables were significant in determining P. maniculatus relative abundance and overall species richness. Polytomous logistic regression showed that soil was the only significant variable in determining species richness and relative abundance with a P-value of<.001.


Biodiversity; Habitat (Ecology); Nevada; Peromyscus maniculatus; Rodent populations; Rodents; Soil ecology; Species diversity


Animal Sciences | Desert Ecology | Ecology and Evolutionary Biology | Environmental Monitoring | Environmental Sciences | Natural Resources and Conservation