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Effort to Prevent ‘Coywolf’ Hybrid Wiping Out Critically Endangered Red Wolves is Working

posted Feb 2, 2016, 10:40 PM by chloe owens

12/11/15, by Hannal Osborne, International Business Times

Effort to prevent ‘coywolf’ hybrid wiping out critically endangered red wolves is working

…A study published in the journal Biological Conservation has now examined how effective the conservation efforts have been, looking specifically at the “placeholder” concept. This involves coyotes and coywolves being captured, sterilized and re-released as placeholders, which hold territories until they are either displaced or killed by a wolf. It also includes the removal of the placeholder by wildlife managers before a wolf is released. The team from Utah State University examined the 15-year sterilization program and found that between 1999 and 2013, red wolves displaced or killed just under a third of the sterile placeholders.