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Title: Final Environmental Assessment: Restoration of Emergent Sand Habitat Complexes in the Missouri River, North Dakota
Authors: United States. Army. Corps of Engineers. Omaha District
Keywords: Little Missouri River (Wyo.-N.D.)
Sand bars
Aquatic habitats
Stream restoration
Environmental management
Environmental protection
Publisher: United States. Army. Corps of Engineers. Omaha District.
Abstract: The purpose of the proposed project is to remove and control vegetation, primarily through the application of aquatically approved herbicides, on river sandbars to ensure that an adequate amount of suitable nesting habitat remains available for the least tern and piping plover in the Garrison River Reach of the Missouri River. The Garrison River Reach provides the first stretch of river with extensive areas of sandbars suitable for nesting terns and is a favored location of both the piping plover and least tern. Under RPA Section IV of the BiOp, Segment 4 (Garrison Dam to Lake Oahe headwaters) is identified as a “High Priority” reach for both terns and plovers and Segment 5 (Lake Oahe reservoir and headwaters) is identified as High Priority for the plover and moderate for the least tern. Studies between 1988 and 2000 indicate that 23 percent of piping plovers and 25 percent of least terns utilizing the Missouri River system were located between Garrison Dam and Lake Oahe. Record discharge levels from the Missouri River in 2011 created a significant amount of ESH in the MRMS that exceeded all habitat creation targets recommended in the PEIS. There has not been a significant natural sandbar creation event on the Missouri River since 1997. With the substantial amount of ESH acres created in 2011, an opportunity exists at this time to maintain as much tern and plover habitat as feasible in these reaches, for as long as possible, through control and removal of vegetation on selected sandbars. It is anticipated that with the increased acres of suitable habitat available that the reproductive success for the tern and plover over several years will result in increased populations for both species.
Description: Environmental Assessment and Finding of No Significant Impact
Rights: Approved for Public Release; Distribution is Unlimited
Appears in Collections:Environmental Documents

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