Thermoregulatory effects of radiotelemetry transmitters on mallard ducklings

Journal of Wildlife Management
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Many telemetry transmitter attachments disrupt downy insulation, and may bias survival studies during cold weather by making ducklings more susceptible to chilling. We compared thermal responses of untreated 1-day-old mallards (Anas platyrhynchos) to ducklings carrying external sutured backpack or subcutaneously implanted transmitters. Ducklings carrying external transmitters showed areas of increased surface temperature in thermographic images. However, open-circuit respirometry studies at 5, 10, 15, 20, and 25 C and wind speeds of 0.1, 0.2, 0.5, and 1 m/s indicated no biologically significant differences in total heat production, net heat production, or short-term body mass loss. These results do not exclude the possibility of other negative effects of transmitters on duckling behavior and survival.
Publication type Article
Publication Subtype Journal Article
Title Thermoregulatory effects of radiotelemetry transmitters on mallard ducklings
Series title Journal of Wildlife Management
Volume 60
Issue 3
Year Published 1996
Language English
Publisher Indiana State Univ, Dept of Life Sciences
Publisher location Terre Haute,IN
Contributing office(s) Upper Midwest Environmental Sciences Center
Description pp. 669-678
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Journal of Wildlife Management
First page 669
Last page 678
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