Aerial Dall sheep count, 1981 : Lake Clark National Park and Preserve
Singer FJ and Lovaas AL. 1981. Aerial Dall sheep count, 1981 : Lake Clark National Park and Preserve. Natural Resources Survey and Inventory Report. AR-81/04. US National Park Service Alaska Region
This is an internal U.S. National Park Service inventory report of Dall sheep in Lake Clark National Park. Aerial counts of Dall sheep were conducted 29-30 August and 5-6 September 1981 to recount the area counted by Troyer in 1978-79 and to obtain a detailed age and sex classification. The known sheep range was delineated into six counting units using lakes, rivers, and glaciers as boundaries. During the survey 805 sheep were counted in these units. Sheep were classified as ewe, lamb, and yearling; and rams as two-year old, 1/4 curl, 1/2 curl, 3/4 curl, and full+ curl
- Type
- Published Report
- Authors
- Singer, Francis; Lovaas, Allan
- Date of Issue
- 1981
- Publisher
- US National Park Service Alaska Region
- Units
- LACL
- Keywords
- Aerial Surveys, Age Distribution, Animal Studies, Dall's sheep (Ovis dalli), Lake Clark National Park and Preserve AK, Population, Sex Ratio