Study Design Assessment for Waterfowl Production Surveys on Tetlin NWR.

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description: Tetlin National Wildlife Refuge monitors waterfowl brood production every year. The same eleven clusters of water bodies have been observed each year since 1985. Given the constraints on personnel, time, and budgets, it is imperative that brood production surveys be conducted efficiently in terms of both choice of sampling design and choice of sampling effort. We review the current survey design, identify statistical issues, and recommend potential solutions. Major topics include the lack of a clearly defined target universe and sample frame, measurement issues (focusing on survey timing and within season mortality), and minimum sample size required to achieve desired level of precision in brood production estimates. The study concludes with a series of recommended tasks that the Refuge should undertake to improve the brood survey's efficiency and effectiveness.; abstract: Tetlin National Wildlife Refuge monitors waterfowl brood production every year. The same eleven clusters of water bodies have been observed each year since 1985. Given the constraints on personnel, time, and budgets, it is imperative that brood production surveys be conducted efficiently in terms of both choice of sampling design and choice of sampling effort. We review the current survey design, identify statistical issues, and recommend potential solutions. Major topics include the lack of a clearly defined target universe and sample frame, measurement issues (focusing on survey timing and within season mortality), and minimum sample size required to achieve desired level of precision in brood production estimates. The study concludes with a series of recommended tasks that the Refuge should undertake to improve the brood survey's efficiency and effectiveness.
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Title Study Design Assessment for Waterfowl Production Surveys on Tetlin NWR.
creation  Date   2018-05-20T23:53:10.605704
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URL: https://ecos.fws.gov/ServCat/DownloadFile/35386?Reference=35353
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URL: https://ecos.fws.gov/ServCat/DownloadFile/35388?Reference=35353
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Metadata data stamp:  2018-08-06T23:11:14Z
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notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based on a transform by Damian Ulbricht. Run on 2018-08-06T23:11:14Z
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organisation Name  CINERGI Metadata catalog
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Metadata language  eng
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standard version:  2007
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