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Nutria. Mike Davison, WDFW. The Search for Weapons of Marsh Destruction in Skagit County, WA. Nutria in Skagit County. 2005 Timeline. Local media pick up the story. Photo taken at DeBay’s Slough. 1 st nutria trapped. March | April | May | June | July | August .
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Nutria Mike Davison, WDFW The Search for Weapons of Marsh Destruction in Skagit County, WA
2005 Timeline Local media pick up the story Photo taken at DeBay’s Slough 1st nutria trapped March | April | May | June | July | August Trapping begins Mike Davison confirms nutria at DeBay’s Trapping ends Nutria trapped in Walker Valley Nutria hotline established
Summer 2005 Trapping Results N = 13
Nutria confirmed Trap – no nutria
Conclusions from 2005 Effort • Adults and subadults (< 5 mo.) caught • Confirmed presence in DeBay’s Slough, Mud Lake, and Clear Lake • Population density appears low • Eradication possible if take action now
Community Involvement • Skagit County Commissioners meeting (Nov 05) • Stakeholders meeting (Nov 05) • TNC offered $10,000 to project if other groups could raise $20,000
Nutria Advisory Committee • Washington Department of Fish and Wildlife • APHIS Wildlife Services • The Nature Conservancy • Western Washington Agricultural Association • Skagit County Public Works • Skagitonians to Preserve Farmland • Skagit Land Trust • Skagit Dike and Drainage Districts • Skagit Conservation District
Skagit County 2006 Trapping Program • Trapping resumed in January 2006 • The surveillance area was expanded • Jan-March: 1500 pounds of bait placed at 103 bait stations: • Debay’s Slough: No sign • Hart’s Slough: No Sign • Clear Lake: 1 bait station hit, 1 SA male captured (2/15/06). • Mud Lake: No Sign • Near Turner Creek: Sign Found (Citizen report) Captured 1 adult male (3/1/06). • Barney Lake: Credible citizens report (possible large male shot)
Skagit County 2006-2007 Trapping Program • Trapped: - SA Male at Clear Lake (3/31/06) - Adult Male Barney Lake (4/27/06 - Lactating, adult female at Barney Lake (5/10/06) • Bait stations placed on Skagit WA HQ and vicinity August 2006 – no sign observed • Bait stations in core trapping area pulled October 2006 and quarterly checks began • Sites revisited in February 2007 - no sign observed • Trapper caught subadult at Beaver Lake in February 2007
What’s Next? • Expand assessment work across larger geographic area • Check locations already trapped on quarterly basis • Respond to reports from public • Continue “Wanted” poster distribution • Remote camera bait station project
Acknowledgments • TNC, WWAA, SPF, Skagit County, WDFW, USDA APHIS, SCD, Dike and Drainage Districts • Puget Sound Action Team • Private Landowners • Callers to the Nutria Hotline • Local Media
Contact information Mike Davison District Wildlife Biologist Washington Department of Fish and Wildlife Phone: (360) 466-4345 x280 Email: davismad@dfw.wa.gov