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Marsh Restoration: Nutria Control
Partnership
Mr. Scott Hartman
Director of National and International Affairs
National Trappers Association, USA
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Research:
Continue nutria exclosure study. Compare trapping techniques. Population
estimates (mark-recapture). Monitor movements (radio-telemetry). Compare
reproduction to treatment/ references.
Wetland restoration:
Compare treatments with: elevation (2 - 4 inches of sediment can make a major
difference if the area is recoverable); plantings of Olney's 3-square bullrush;
nutria grazing in or around exclosures.
Budget request for nutria management $1.5 million; nutria research $. 9
million; public education $60,000; and wetland restoration $. 4 million = total
of $2.9 million.
In-kind contributions include: direct dollars; boats/ motors; equipment;
vehicles; staff time has not risen to nearly $1.5 million.
A grant for $300,000 has been obtained from the US Department of Agriculture
for capacity building. This makes the project a $4.7 million undertaking the
largest furbearer research project ever in the United States.
An Executive Order was signed by President Clinton on February 3, 1999. Its
purpose: Control of invasive species; to minimize the economic, ecological and
human health impacts of invasive species.
An Invasive Species Council, co-chaired by the Secretaries of the Interior,
Agriculture and Commerce was established to coordinate federal agency activities
in invasive species to document, evaluate and monitor impacts from invasive
species.
A national survey was completed to establish the status, distribution and
management of nutria in the United States.
22 of the 50 states have confirmed nutria introductions. All national
wildlife refuges and state wildlife agencies were surveyed. 15 states reported
viable and expanding populations of nutria.
A Do you have nutria? questionnaire was sent to all states and federal
wildlife refuges; the first nutria release was in the 1890s in California.
Distribution of nutria: Washington, Oregon, Texas, Oklahoma, Louisiana,
Arkansas, Mississippi, Alabama, Georgia, Florida, Tennessee, North Carolina,
Virginia, Maryland and Kentucky.
In the 15 states with nutria 1,046,425 acres (423,482 hectors) of
land-managed by the National Wildlife Refuge System have nutria. In Louisiana
alone, 100,000 acres of marsh were severely damaged in 1998.
The target is nutria; the hoped-for result is a means to eradicate it from
the United States.
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