| Abstract: | We describe reproductive characteristics of Golden Eagles (Aquila chrysaetos)
breeding in Denali National Park, Alaska during an entire snowshoe hare( Lepus americanus)
cycle, 1988-1997. Data on nesting eagles were collected at 58 to 72 nesting areas
annually using two aerial surveys. Surveys were conducted during the incubation period to
determine occupancy and nesting activities and late in the nestling period to count nestlings
and determine nesting success. Annual occupancy rates of nesting areas did not vary significantly, whereas laying rates, success rates, and mean brood size varied significantly over the study period. Fledgling production for the study population varied sevenfold during the ten-year period. Laying rates, mean brood size, and overall population productivity were
significantly correlated with abundance of cyclic snowshoe hare and Willow Ptarmigan
(Lugopus lagopus) populations. Reproductive rates of Golden Eagles in Denali were similar
to those of Golden Eagles from other high latitude study areas in North America, but lower
than for Golden Eagles from temperate zone study areas in North America. |
| Genre: | Article |
| ProdID: | 1015969 |
| Citation Author: | McIntyre, Carol L.; Adams, Layne G. |
| Citation Contributing Office: | Forest and Rangeland Ecosystem Science Center |
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| Citation End Page: | 123 |
| Citation Issue: | 1 |
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| Citation Language: | English |
| Citation Larger Work Title: | The Condor |
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| Citation Number Of Pages: | 9 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | p. 115-123 |
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| Citation Search Results Text: | Reproductive characteristics of migratory golden eagles in Denali National Park, Alaska; 1999; Article; Journal; The Condor; McIntyre, Carol L.; Adams, Layne G. |
| Citation Start Page: | 115 |
| Citation Volume: | 101 |
| Citation Year: | 1999 |
| Type: | citation/reference |
| Text: | Reproductive characteristics of migratory golden eagles in Denali National Park, Alaska; 1999; Article; Journal; The Condor; McIntyre, Carol L.; Adams, Layne G. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1999 00:00 -0600 |
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