Background/Question/Methods A use-availability sampling design is commonly employed in resource s... more Background/Question/Methods A use-availability sampling design is commonly employed in resource selection studies. Under a use-availability design, a sample of used sites is selected from the subpopulation of used sites and a sample of available sites is selected from the entire population. Commonly used analytical approaches for such data estimate a resource selection index that is assumed proportional to the absolute probability of use, but recent work has demonstrated that such proportionality is not guaranteed. Additionally, a small number of recently developed models are capable of estimating absolute probability of use from use-availability data, but these models require data on all resource units considered available. The modified case-control model of Lancaster and Imbens (1996, Journal of Econometrics) may be an alternative to estimating the absolute probability of use from use-availability data but has been described as difficult to implement and unstable. We first propose...
Background/Question/Methods A use-availability sampling design is commonly employed in resource s... more Background/Question/Methods A use-availability sampling design is commonly employed in resource selection studies. Under a use-availability design, a sample of used sites is selected from the subpopulation of used sites and a sample of available sites is selected from the entire population. Commonly used analytical approaches for such data estimate a resource selection index that is assumed proportional to the absolute probability of use, but recent work has demonstrated that such proportionality is not guaranteed. Additionally, a small number of recently developed models are capable of estimating absolute probability of use from use-availability data, but these models require data on all resource units considered available. The modified case-control model of Lancaster and Imbens (1996, Journal of Econometrics) may be an alternative to estimating the absolute probability of use from use-availability data but has been described as difficult to implement and unstable. We first propose...
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Papers by Catherine Jachowski