TY - RPRT TI - Timing of warm water refuge use in Crystal River National Wildlife Refuge by manatees—Results and insights from Global Positioning System telemetry data AU - Daniel H. Slone AU - Susan M. Butler AU - James P. Reid AU - Catherine G. Haase PY - 2017 DO - 10.3133/ofr20171146 UR - https://pubs.usgs.gov/publication/ofr20171146 ID - ofr20171146 ER -