| Abstract: | 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. |
| Genre: | Article |
| ProdID: | 1002902 |
| Citation Author: | Bakken, G. S.; Reynolds, P. S.; Kenow, K. P.; Korschgen, C. E.; Boysen, A. F. |
| Citation Contributing Office: | Upper Midwest Environmental Sciences Center |
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| Citation End Page: | 678 |
| Citation Issue: | 3 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Wildlife Management |
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| Citation Number Of Pages: | 10 |
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| Citation Phsyical Description: | pp. 669-678 |
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| Citation Publisher: | Indiana State Univ, Dept of Life Sciences |
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| Citation Search Results Text: | Thermoregulatory effects of radiotelemetry transmitters on mallard ducklings; 1996; Article; Journal; Journal of Wildlife Management; Bakken, G. S.; Reynolds, P. S.; Kenow, K. P.; Korschgen, C. E.; Boysen, A. F. |
| Citation Start Page: | 669 |
| Citation Volume: | 60 |
| Citation Year: | 1996 |
| Type: | citation/reference |
| Text: | Thermoregulatory effects of radiotelemetry transmitters on mallard ducklings; 1996; Article; Journal; Journal of Wildlife Management; Bakken, G. S.; Reynolds, P. S.; Kenow, K. P.; Korschgen, C. E.; Boysen, A. F. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 1996 00:00 -0600 |
| Publisher: | Indiana State Univ, Dept of Life Sciences |
