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Population and Habitat Analyses for Dall's Sheep (Ovis dalli) in Wrangell-St. Elias National Park and Preserve

Dates

Year
2005

Citation

Terwilliger, Miranda Lilian Naeser, 2005, Population and Habitat Analyses for Dall's Sheep (Ovis dalli) in Wrangell-St. Elias National Park and Preserve: University of Alaska.

Summary

We summarized and statistically analyzed historical fixed-wing aerial surveys (1949-2002) and harvest records (1983-2002) of Dall’s sheep (Ovis dalli dalli) from Wrangell-St. Elias National Park and Preserve (WRST). Among survey units there were significant differences in observed densities, hunterreported harvest, horn lengths of harvested rams, and horn length residuals from the regression of length on age. There was no consistent evidence of net change in WRST-wide sheep density, even though some survey units showed trends in density. Reported harvest in WRST declined linearly during 1973-2003 from 376 to 139 rams per year. We estimated the relationships among population and habitat characteristics with multiple linear regression. [...]

Contacts

Attached Files

Communities

  • LC MAP - Landscape Conservation Management and Analysis Portal
  • Northwest Boreal Landscape Conservation Cooperative

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Data source
File Processing
File Process
Type
End Note
Reference Item
NWBLCC20160627

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