Graduation Date
Fall 2022
Document Type
Thesis
Program
Master of Science degree with a major in Natural Resources, option Wildlife
Committee Chair Name
Richard N. Brown PhD, DVM
Committee Chair Affiliation
HSU Faculty or Staff
Second Committee Member Name
Dan Barton, PhD
Second Committee Member Affiliation
HSU Faculty or Staff
Third Committee Member Name
Mark Wilson, PhD
Third Committee Member Affiliation
HSU Faculty or Staff
Keywords
Wildlife disease, Roosevelt elk, Escherichia coli, Salmonella, Fecal pathogen, Wildlife interface, Cattle, STEC, Northern California, Elk disease, Cattle disease, Humboldt County, Del Norte County
Subject Categories
Wildlife Management
Abstract
Direct or indirect contact between domestic populations of animals and wildlife carries an inherent risk for transmission of pathogens that cause infectious disease. In Humboldt and Del Norte counties of northern California, ongoing conflict between ranchers and Roosevelt elk groups results from elk use of ranching pastures and pastures on private land. Fecal samples from elk in association with cattle, cattle, and from elk not in known association with cattle were assessed for the presence of bacteria Salmonella enterica and pathogenic Escherichia coli to assess whether association with cattle increases risk of infection for elk. Group identity (one of the elk groups or cattle group) was the leading parameter in infection likelihood models, and elk in association with cattle were over nine times more likely to have pathogenic non-O157:H7 E. coli isolated from their feces than elk that were not in association with cattle.
Citation Style
JLM
Recommended Citation
Buck, Emily A., "Escherichia coli and Salmonella sp. in domestic cattle and wild Roosevelt elk: fecal pathogens at the wildlife-domestic interface" (2022). Cal Poly Humboldt theses and projects. 609.
https://digitalcommons.humboldt.edu/etd/609
Included in
Beef Science Commons, Dairy Science Commons, Other Animal Sciences Commons, Other Immunology and Infectious Disease Commons