Lake Michigan 2010-11 selected common loon telemetry observations
Dates
Publication Date
2018-03-05
Start Date
2009-09-01
End Date
2011-12-31
Citation
Kenow, K., 2018, Distribution and foraging patterns of common loons on Lake Michigan with implications for exposure to type E avian botulism: Data: U.S. Geological Survey data release, https://doi.org/10.5066/F70G3JGG.
Summary
Implantable satellite transmitters (e.g., Model PTT-100, Microwave Telemetry, Inc) were incorporated into the study to provide fine-resolution location data for a sample of the adult male common loons fitted with geolocator tags in 2010 and 2011. Transmitters were implanted in the abdominal cavity following procedures developed by Korschgen et al. (1996). The satellite transmitters were programmed to transmit on a variable schedule based on the anticipated stage of migration during the loon’s annual cycle - 8 hours on:72 hours off during the breeding season, 8 hours on:24 hours off while migrating, 6 to 8 hours on:96 hours off on the wintering grounds, and 8 hours on:24 hours off during spring migration, and 8 hours on:96 hours off [...]
Summary
Implantable satellite transmitters (e.g., Model PTT-100, Microwave Telemetry, Inc) were incorporated into the study to provide fine-resolution location data for a sample of the adult male common loons fitted with geolocator tags in 2010 and 2011. Transmitters were implanted in the abdominal cavity following procedures developed by Korschgen et al. (1996). The satellite transmitters were programmed to transmit on a variable schedule based on the anticipated stage of migration during the loon’s annual cycle - 8 hours on:72 hours off during the breeding season, 8 hours on:24 hours off while migrating, 6 to 8 hours on:96 hours off on the wintering grounds, and 8 hours on:24 hours off during spring migration, and 8 hours on:96 hours off for the remaining life of the transmitter. Transmitter data, received by equipment on polar-orbiting National Oceanic and Atmospheric Administration Tiros-N weather satellites, were transmitted to the Service Argos data processing center in Landover, Maryland, where loon locations were estimated from the Doppler shift in the transmitter's carrier frequency. Location estimates were acquired using Argos Standard Service Processing (Argos Location Classes [LC] 3, 2, 1, and 0) and Auxiliary Location Processing (LC A, B, and Z). One standard deviation of nominal accuracy for location estimates with LC 3, 2, 1, and 0 are <250, 250 to 500, 500 to 1,500, and >1,500 m, respectively (Service Argos 2008). We utilized the most accurate locations per 8-hour transmission period for each individual to describe the daily location of that adult loon. Spot measurements of water depth and distance to shore were determined for each radiomarked loon location. Only location estimates for LC qualities 1-3 were used in the analyses.
Click on title to download individual files attached to this item.
Lake_MI 2010_11 selected COLO telemetry locations.xml Original FGDC Metadata
View
18.7 KB
application/fgdc+xml
Lake MI 2010-11 selected COLO telemetry locations.csv
23.21 KB
text/csv
Related External Resources
Type: Related Primary Publication
Kenow, K.P., Houdek, S.C., Fara, L.J., Gray, B.R., Lubinski, B.R., Heard, D.J., Meyer, M.W., Fox, T.J., and Kratt, R.J., 2018, Distribution and foraging patterns of common loons on Lake Michigan with implications for exposure to type E avian botulism: Journal of Great Lakes Research, v. 44, no. 3, p. 497–513, https://doi.org/10.1016/j.jglr.2018.02.004.
