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Is the southwest willow flycatcher at risk of quasi-extinction? A critical evaluation of recovery units for a conservation icon.


Abstract The southwestern willow flycatcher (Empidonax traillii extimus) is listed as an endangered species throughout its range in the southwestern United States. Little is known about its sub-population spatial structure and how this impacts its population viability. In conjunction with being listed as endangered, a recovery plan was produced by the US Fish and Wildlife Service, with recovery units (sub-populations) roughly based on major river drainages. In the interest of examining this configuration of sub-populations and their impact on the measured population viability, I applied a multivariate auto-regressive state-space model to a spatially extensive time series of abundance data for the southwestern willow flycatcher over the period spanni... (more)
Created Date 2012
Contributor Dockens, Patrick Edward (Author) / Sabo, John (Advisor) / Stromberg, Juliet (Committee member) / Fenichel, Eli (Committee member) / Arizona State University (Publisher)
Subject Biology / endangered / population viability analysis / recovery / willow flycatcher
Type Masters Thesis
Extent 40 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note M.S. Biology 2012
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis