Clay, Keith
Shearin, Zackery R. C.
Bourke, Kimberly A.
Bickford, Wesley A.
Kowalski, Kurt P.
Funding for this research was provided by:
U.S. Geological Survey (G13AC00285)
Article History
Received: 15 October 2015
Accepted: 25 March 2016
First Online: 4 April 2016