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Activity Number:
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330
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Type:
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Topic Contributed
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Date/Time:
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Tuesday, July 31, 2007 : 2:00 PM to 3:50 PM
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Sponsor:
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Section on Survey Research Methods
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| Abstract - #309424 |
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Title:
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Designing a Dual-Frame Survey for Breeding Bald Eagle Pairs in the Lower 48 States
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Author(s):
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Mark C. Otto*+ and John R. Sauer
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Companies:
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U.S. Fish & Wildlife Service and U.S. Geological Survey
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Address:
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2302 Lackawanna Street, Adelphi, MD, 20783,
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Keywords:
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Abstract:
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The USGS and US Fish and Wildlife Service are designing a dual frame survey of breeding bald eagle pairs in the lower 48 states following Haines and Pollock, 1998. The list frame is made up of the combined state nests lists, and the area frame is a grid of 10 by 10 km2 plots. The initial state bird conservation region strata were collapsed sequentially by combining adjacent strata with similar densities. Cost functions of aerial miles were made up from simulating samples of different sizes from the nest lists. Optimal sampling allocations between the list and area frames were determined over different list coverages. Efficiencies for simultaneously sampling the area then list frames will also be discussed.
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