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Kodiak bear GPS collar fix location data

Published by Fish and Wildlife Service | Department of the Interior | Catalog Last Checked: June 26, 2026 at 03:43 AM | Dataset Last Updated: January 01, 2015 at 12:00 AM
GPS radio collar (Telonics Model #TGW-3790) programmed to record a location every hour from 15 May through 15 November. Collars contained an ultrahigh frequency (UHF) radio transmitter and locations were downloaded using an airplane fitted with a UHF receiver. Collars also collect activity data synchronous with each GPS location with an onboard mercury switch. Activity levels were expressed as the percentage of time being active during the data collection interval. We screened GPS locations for accuracy and removed relocations with a positional dilution of precision (PDOP) greater than 10 [50]. We restricted bear locations to the period of 10 July through the end of August each year to coincide with the annual sockeye salmon run. A sample of 51 female bears.

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