| Abstract: | We used radio telemetry to record 198 h of feeding behavior of five Lesser Scaup (Aythya affinis) on the Indiana Harbor Canal in northwestern Indiana during January and February 1994. Lesser Scaup fed for short periods of time intermittently during each 24-h period. Lesser Scaup fed a total of 96 min during the day and 226 min during the night. They fed more between sunset and midnight (31.9% of the period, P = 0.003) than between sunrise and noon (11.6%) or noon and sunset (19.5%); time spent feeding between midnight and sunrise (26.3%) did not differ from other times of day. Mean dive duration (22.9 ± 0.64 sec) did not vary by time of day (P = 0.186-0.744). These results are the first 24-h feeding activity reported for individually marked Lesser Scaup. |
| Genre: | Article |
| ProdID: | 70006770 |
| Citation Author: | Custer, C. M.; Custer, T. W.; Sparks, D. W. |
| Citation Contributing Office: | Upper Midwest Environmental Sciences Center |
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| Citation End Page: | 566 |
| Citation Issue: | 3 |
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| Citation Language: | English |
| Citation Larger Work Title: | Wilson Bulletin |
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| Citation Number Of Pages: | 11 |
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| Citation Phsyical Description: | 11 p. |
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| Citation Public Comments: | Abstract has subscript/superscript to be fixed |
| Citation Publisher: | Wilson Ornithological Society |
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| Citation Search Results Text: | Radio telemetry documents 24-hour feeding activity of wintering lesser scaup; 1996; Article; Journal; Wilson Bulletin; Custer, C. M.; Custer, T. W.; Sparks, D. W. |
| Citation Start Page: | 556 |
| Citation Volume: | 108 |
| Citation Year: | 1996 |
| Type: | citation/reference |
| Text: | Radio telemetry documents 24-hour feeding activity of wintering lesser scaup; 1996; Article; Journal; Wilson Bulletin; Custer, C. M.; Custer, T. W.; Sparks, D. W. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (INDEX PAGE): | http://www.jstor.org/stable/4163723 |
| Date Other: | Sun, 1 Jan 2012 11:01 -0600 |
| Publisher: | Wilson Ornithological Society |
