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A) Presence/Absence--automated

Snow Storm, May 2002. SNOW. HIGH WINDS. A) Presence/Absence--automated. Antenna Solar panel Battery Receiver Data logger. 900. 700. % change in activity range. 500. 300. 100. 0. -100. CORT implant. blank implant. treatment. B) Manual Localization. Example: CORT in sparrows.

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A) Presence/Absence--automated

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  1. Snow Storm, May 2002 SNOW HIGH WINDS A) Presence/Absence--automated Antenna Solar panel Battery Receiver Data logger

  2. 900 700 % change in activity range 500 300 100 0 -100 CORT implant blank implant treatment B) Manual Localization Example: CORT in sparrows

  3. localization C) Multi-tower localization--automated overview antenna Heart rate

  4. Satellite Telemetry

  5. Biotelemetry Weddell Seal Work in the Antarctic

  6. Telemetry • Radiotelemetry: • transmitter size can be quite small (<1 g) • Transmission distance limited by geography • Relatively inexpensive ($150 per transmitter) • Can transmit location, movement, some physiological data • Satellite Telemetry (GPS): • Larger transmitters (>30 g) • No limitation on transmission distance • Extraordinarily expensive ($10,000 per trans) • Can transmit location, movement, or physiological data • Biotelemetry • Can record heart rate, depth, movement, speed • Usually the unit on the animal must be retrieved to download the data

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