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I think there is pretty good evidence that removing the Barreds will preserve the Spotteds. But, unless we restore and protect sufficient linked habitat for the Spotteds to live on their own we will be continually required to do lethal removal. This isn't a one-off action.
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<span class="signature-truncate"><span class="signature-truncate">Hal Michael<br><span style="font-size: 12pt;">Board of Directors, </span><a style="font-size: 12pt;" href="http://ecowb.org/">Ecologists Without Borders</a></span></span>
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<span class="signature-truncate">Olympia WA<br>360-459-4005<br>360-791-7702 (C)<br>ucd880@comcast.net</span>
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On 12/07/2023 2:07 PM PST ED DEAL <falcophile@comcast.net> wrote:
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<span style="font-family: helvetica; font-size: 12pt;">Tweets,</span>
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<span style="font-family: helvetica; font-size: 12pt;">I would recommend reading the monograph cited below by J. Wiens et al. that describes the rigorous science behind the proposal for Barred Owl removal. They studied the Spotted Owl populations in 3 areas, one near Cle Elum, WA and 2 in Oregon that had BDOW lethal removal and 3 paired areas that served as controls. Over several years, the Spotted Owl population stabilized in the 3 study areas while continuing in free-fall in the three controls.</span>
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<span style="font-family: helvetica; font-size: 12pt;">Effects of Barred Owl (Strix varia) Removal on Population Demography of Northern Spotted Owls (Strix occidentalis caurina) in Washington and Oregon, 2015–18 — OFR 2019-1074 (fdlp.gov)</span>
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<span style="font-family: helvetica; font-size: 12pt;">Ed Deal</span>
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<span style="font-family: helvetica; font-size: 12pt;">Seattle</span>
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<span style="font-family: helvetica; font-size: 12pt;">falcophile at comcast dot net</span>
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