Fish and Wildlife Habitat Changes Resulting from Construction of a Nine-Foot Channel on Pools 24, 25, and 26 of the Mississippi River and the Lower Illinois River,

Sparks, Richard E.; Bellrose, Frank C.; Paveglio, Fred L.; Sandusky, Michael J.; Steffeck, Donald W.

doi:10.5962/bhl.title.21346

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…Elevated water levels in the Illinois River during the growing season prevented dewatering until August or September in 2013–2015 and food production by plants was prevented or likely greatly reduced (Fig. ; Bellrose et al ; Stafford et al ). Thus, we did not estimate moist‐soil seed production in 2013–2015 at CNWR due to limited or substantially delayed production of vegetation, which may have made use of a visual seed production index (SPI) unreliable.…”

Section: Methodsmentioning

confidence: 99%

“…Unfortunately, drastic changes to river systems throughout North America occurred during the nineteenth and twentieth centuries and affected the quality of floodplain wetlands as habitat for migratory birds. Installation of locks and dams that increased and stabilized water levels, channelization for commercial navigation, proliferation of drainage and levee districts that isolated floodplains from the main channel, and increased run‐off and high sediment loads from adjacent agricultural areas affected natural hydroperiods and disrupted seasonal flood pulses into adjacent river floodplains (Bellrose et al ; Sparks et al ). Heavy sediment loads, frequent and high‐magnitude floods during the growing season, and invasive species reduce the ability of hydrophytic plants to establish and persist in these turbid systems leading to loss or dramatic declines in many obligate hydrophytic plant species (Moore et al ; Stafford et al ).…”

Section: Introductionmentioning

confidence: 99%

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Energetic implications of floodplain wetland restoration strategies for waterfowl

McClain¹,

Hagy²,

Hine³

et al. 2018

Restoration Ecology

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Modifications of the Illinois River and associated tributaries have resulted in altered hydrologic cycles and persistent river‐floodplain connections during the growing season that frequently impede the establishment of hydrophytic vegetation and have reduced value for migratory waterfowl and other waterbirds. To help guide floodplain restoration, we compared energetic carrying capacity for waterfowl in two wetland complexes along the Illinois River under different management regimes during 2012–2015. The south pool of Chautauqua National Wildlife Refuge (CNWR) was seasonally flooded due to a partial river connection and managed for moist‐soil vegetation. Emiquon Preserve was hydrologically isolated from the Illinois River by a high‐elevation levee and managed as a semipermanently flooded emergent marsh. Semipermanent emergent marsh management at Emiquon Preserve produced 5,495 energetic use‐days (EUD)/ha for waterfowl and other waterbirds across wetland cover types and years, and seasonal moist‐soil management at CNWR produced 6,199 EUD/ha in one of 4 years. At Emiquon Preserve, the aquatic bed cover type produced 9,660 EUD/ha, followed by 5,261 EUD/ha in moist‐soil, 1,398 EUD/ha in persistent emergent, 1,185 EUD/ha in hemi‐marsh, and 12 EUD/ha in open water cover types. At CNWR, the annual grass and sedge cover type produced 7,031 EUD/ha, followed by 5,618 EUD/ha in annual broadleaf and 1,305 EUD/ha in perennial grass cover types. Restoration of floodplain wetlands in isolation from frequent flood pulses during the growing season can produce hemi‐marsh and aquatic bed vegetation communities that provide high‐quality habitat for waterfowl and which have been mostly eliminated from large river systems in the Midwest, U.S.A.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Energetic implications of floodplain wetland restoration strategies for waterfowl

McClain¹,

Hagy²,

Hine³

et al. 2018

Restoration Ecology

View full text Add to dashboard Cite

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Development of water level regulation strategies for fish and wildlife, upper Mississippi river system

Lubinski

Carmody

Wilcox

et al. 1991

Regul. Rivers: Res. Mgmt.

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Water level regulation has been proposed as a tool for maintaining or enhancing fish and wildlife resources in navigation pools and associated flood plains of the Upper Mississippi River System. Research related to the development of water level management plans is being conducted under the Long Term Resource Monitoring Program. Research strategies include investigations of cause and effect relationships, spatial and temporal patterns of resource components, and alternative problem solutions. The principal hypothesis being tested states that water level fluctuations resulting from navigation dam operation create less than optimal conditions for the reproduction and growth of target aquatic macrophyte and fish species. Representative navigation pools have been selected to describe hydrologic, engineering, and legal constraints within which fish and wildlife objectives can be established. Spatial analyses are underway to predict the magnitude and location of habitat changes that will result from controlled changes in water elevation. KEY WORDS

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Effects of Increased Commercial Navigation Traffic on Freshwater Mussels in the Upper Mississippi River: Ten-Year Evaluation

Miller¹,

Payne²

2002

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Fish and Wildlife Habitat Changes Resulting from Construction of a Nine-Foot Channel on Pools 24, 25, and 26 of the Mississippi River and the Lower Illinois River,

Cited by 3 publications

References 14 publications

Energetic implications of floodplain wetland restoration strategies for waterfowl

Energetic implications of floodplain wetland restoration strategies for waterfowl

Development of water level regulation strategies for fish and wildlife, upper Mississippi river system

Effects of Increased Commercial Navigation Traffic on Freshwater Mussels in the Upper Mississippi River: Ten-Year Evaluation

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