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South American Rodents Found in Seattle

Discussion in 'General Discussion' started by ghostrider, Apr 17, 2006.

  1. ghostrider

    ghostrider Resident Poltergeist Founding Member

    South American Rodents Found in Seattle Fri Apr 14, 10:08 PM ET

    SEATTLE - A water-loving rodent native to South America that has destroyed thousands of acres of wetlands in the southeast has been spotted near Lake Washington.

    Nutria are semi-aquatic, chocolate-colored rodents that can weigh more than 20 pounds and eat one-quarter of their weight a day in crops and plants of all varieties. Also called coypu, or swamp rats, they burrow through marshes and levies, and females can produce more than a dozen offspring a year.

    A trapper recently caught nine along the shores of Lake Washington. Two University of Washington students are studying the rodents to determine where they may show up next.

    "It's a pretty ominous picture when you bring nutria into an area where they didn't exist before," said Mike Davison, a wildlife biologist with the state Department of Fish and Wildlife. "There is no way of winning on this if nutria establish."

    A statewide Invasive Species Council was recently created to track nutria and other invasive plant and animal species, and to find methods for removing them.

    The council will include six state agencies and two counties and will work with federal and other government agencies, business, tribal and nonprofit groups. It plans to meet in coming months.

    "Having an Invasive Species Council is a big step forward," said Joan Cabreza, invasive species coordinator with the Northwest regional office of the U.S. Environmental Protection Agency.

    Washington has lagged behind states like Oregon and Idaho that already have such councils that work to prevent introduction of invasive species. Without such a council, no single agency had the authority to act, Cabreza said.

    "If you can get on these things early and get people to understand how important it is, the impact is really small," said Bill Brookreson, deputy director for the state Agriculture Department.

    Nationally, nutria are found in at least 15 states, including Louisiana, Texas, the Carolinas, Florida, Maryland and Oregon.

    In the 1930s and '40s, they were raised in Washington and elsewhere for their fur. They're vulnerable to cold and flooding, though, and it's believed they died out of the Puget Sound region over the years.

    Populations have established in southwest Washington, near Vancouver, where they've turned local dikes to "Swiss cheese," said Davison.

    Last summer, more than a dozen were caught in Skagit County in a state-led control effort.

    Davison helped in the project in Skagit County, where agricultural and forestry industries and reliance on levies make the area vulnerable to the pests. Traps are still being laid and nutria caught are killed.

    Milder weather could have helped the nutria spread into the Puget Sound area, as well as a lack of predators like caiman and alligators in their native environment.

    Armed with large packs, camera gear and notebooks, UW students Phu Van and Filip Tkaczyk are documenting where the interlopers are living, how many there are and what they're eating. They're focusing on an area of fields and wetlands north of Husky Stadium.

    Along the shoreline, the large rodents have flattened grass and cattails, creating "runways" as they travel from the water to dens to fields where they graze among the Canada geese.

    Ed Cunningham, a Highline High School educator who also runs a trapping business, was called this winter by a Lake Washington resident who wanted the rodents removed.

    He used bait and wire cages to trap nine of the rodents over a couple of weeks in February and March.

    "What we need to do is get some sterile alligators that like cold water," joked Cunningham. "I'm not going to get them all."
  2. Quigley_Sharps

    Quigley_Sharps The Badministrator Administrator Founding Member

  3. ColtCarbine

    ColtCarbine Monkey+++ Founding Member

    I wasn't aware that Nutria weren't native
  4. ghostrider

    ghostrider Resident Poltergeist Founding Member

    IIRC, the first place they were introduced into the US was South Louisiana.
  5. Clyde

    Clyde Jet Set Tourer Administrator Founding Member

    Are they going to allow people to kill them? Whatever happend to survival of the fittest. These animals have the right to exist (PETA will be notified!)

    .17 MACH2 would make for a fun afternoon.
  6. Quigley_Sharps

    Quigley_Sharps The Badministrator Administrator Founding Member

    Yea they arent native to us.
  7. monkeyman

    monkeyman Monkey+++ Moderator Emeritus Founding Member

    Hell, just take a page from older days. Offer a bounty from the state for each one killed, proven by some unused part like the ears or whatever and have an unlimited bag limit on them and unlimited season nd meathods then let the sportsmen take them out with trapping and hunting and such like used to be done with yotes and wolves and such. Then trappers could target them and get a bounty from the state and still sell the fur and if the meat is any good have the meat as well.

    I would venture to say it would be more cheaper and more effective than anything else they could do, paying say $2-$5 each.
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