Funding for this research was provided by:
National Science Foundation (OPP-0338428, ANT-0944747)
Marine Mammal Commission (NA)
Article History
Received: 17 May 2017
Revised: 3 December 2017
Accepted: 16 December 2017
First Online: 3 January 2018
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.