| Abstract: | We monitored the movements of 97 female and 15 male juvenile American black ducks (Anas rubripes) in the vicinity of Moosehorn National Wildlife Refuge in eastern Maine and southwestern New Brunswick from September through mid- December, 1985-1987.. Movements were described by estimating home ranges and radial movements from the primary roost marsh. Overall home range sizes averaged 4987 ha (range 54 - 28 070 ha), and maximum distances moved from the roost averaged 9.9 km (range 0.9-42.8 km). Home ranges were linear (linearity index 2.8), and home range area and distance of movements from the roost both increased monthly. Ducks that used >15 % riverine habitat had larger home ranges and moved greater distances from the roost than ducks using <15% riverine wetlands. Movements did not differ between ducks usually alone and those usually in flocks. Juvenile black ducks moved in small flocks and were often alone (34% of 355 observations). Most ducks showed fidelity to one roost-marsh complex from September until migration in late November. Daily and seasonal movement patterns were similar to those predicted for refuging systems. |
| Genre: | Article |
| ProdID: | 5222410 |
| Citation Author: | Frazer, C.; Longcore, J.R.; McAuley, D.G. |
| Citation Contributing Office: | Patuxent Wildlife Research Center |
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| Citation End Page: | 1291 |
| Citation Issue: | 6 |
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| Citation Language: | English |
| Citation Larger Work Title: | Canadian Journal of Zoology |
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| Citation Number Of Pages: | 4 |
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| Citation Phsyical Description: | 1288-1291 |
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| Citation Search Results Text: | Home range and movements of postfledging American black ducks in eastern Maine; 1990; Article; Journal; Canadian Journal of Zoology; Frazer, C.; Longcore, J.R.; McAuley, D.G. |
| Citation Start Page: | 1288 |
| Citation Volume: | 68 |
| Citation Year: | 1990 |
| Type: | citation/reference |
| Text: | Home range and movements of postfledging American black ducks in eastern Maine; 1990; Article; Journal; Canadian Journal of Zoology; Frazer, C.; Longcore, J.R.; McAuley, D.G. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DOCUMENT): | http://rparticle.web-p.cisti.nrc.ca/rparticle/AbstractTemplateServlet?calyLang=eng&journal=cjz&volume=68&year=0&issue=6&msno=z90-192 |
| Date Other: | Wed, 16 Jun 2010 12:19 -0500 |
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