Miller, Zachary D. http://orcid.org/0000-0001-9909-1202
Freimund, Wayne
Metcalf, Elizabeth Covelli
Nickerson, Norma
Powell, Robert B.
Funding for this research was provided by:
National Park Service
Article History
Received: 8 November 2018
Accepted: 21 January 2019
First Online: 30 January 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.