4,361 research outputs found
Rainwater Basin Wetland Management District Bird List
The Rainwater Basin of south central Nebraska has attracted millions of migratory birds each spring for generations. During migration, millions of snow geese, Canada geese, white-fronted geese, ducks, and 1/2-million sandhill cranes use the Rainwater Basin and the adjacent Platte River. The shallow wetland basins and surrounding croplands of the area provide the birds with critical resting and feeding sites during their migration north. The Waterfowl Production Areas (WPAs) of the Rainwater Basin Wetland Management District (WMD) are managed as grassland-playa lake ecosystems. The Rainwater Basin WMO staff currently manages 59 WPAs in the Rainwater Basin. Most of the WPAs must undergo extensive restoration to provide quality habitat for the millions of migrating birds. To restore wetlands, WMD staff employ a variety of management techniques such as pumping groundwater, prescribed burning, grazing, filling in pits, removing trees, and clearing non-native plants. These lands. once used for agricultural purposes, are now reseeded to recover the native plant communities. The species listed in this leaflet have all been observed in the WPAs. All species names are in accordance with the A.O.U. Check-list of North American Birds 7th edition, 1998. For clarity, some of the former names are shown in parentheses
Evaluation of the Effects of Stage Fluctuations on Overwinter Survial and Movement of Young Colorado Pikeminnow in the Green River, Utah, 1999-2002
Each component of the Flaming Gorge Winter study had specific objectives to address oncerning the effects of winter operations of Flaming Gorge Dam on the survival, distribution, and ursery habitats of age-O Colorado pileeminnow. n Table I, study objectives for each project are resented and the reader is directed to the relevant draft report. The Colorado River Fish Project-Vernal, tah, was responsible for conducting field investigations (i.e., population estimates, winter fish sampling, nd monitoring stage fluctuations) in the alluvial reach occupied by age-O Colorado pileeminnow. olorado State University was responsible for characterizing movement rates under simulated winter onditions; and developing and eValuating a bioenergetics model for age-O Colorado pileeminnow
[Letter from New England Regional Director to Division Engineer, New England Division, U.S. Army Corps of Engineers]
The results of appraisals conducted jointly by this Service, the Maine Department of Inland Fisheries and Wildlife, and your agency concerning bald eagle, osprey, peregrine falcon, and great blue heron
2011 National Survey of Fishing, Hunting, and Wildlife-Associated Recreation : Maine
https://digitalmaine.com/fws_feddocs/1000/thumbnail.jp
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Fish Passage Engineering Design Criteria
Anthropogenic activities in rivers may introduce undue hazards to many aquatic organisms and contribute to overall habitat fragmentation. Fragmentation may negatively alter the structure and diversity of both diadromous and resident fish populations. These adverse impacts can be mitigated through dam removal, and a variety of technical and nature-like fish passage and protection technologies. Fish passage and protection (hereafter simply “fish passage”) requires the integration of numerous scientific and engineering disciplines including fish behavior, ichthyomechanics, hydraulics, hydrology, geomorphology, and hydropower. This document is intended to: 1) establish Engineering’s “baseline” design criteria for fishways, dam removals, road crossings and other fish passage related technologies; 2) serve as a resource for training in these disciplines; and 3) support the implementation of the Service’s statutory authorities related to the conservation and protection of aquatic resources (e.g., Section 18 of the Federal Power Act, Endangered Species Act, Fish and Wildlife Coordination Act, and the Anadromous Fish Conservation Act)
ENVIRONMENTAL ASSESSMENT OF THE MICHIGAN KARNER BLUE BUTTERFLY HABITAT CONSERVATION PLAN AND INCIDENTAL TAKE PERMIT Prepared by:
Wetlands Are Important
This poster illustrates the value of wetlands with photographs which feature their multiple uses: water purification, erosion control, flood protection, food source, home for rare species, recreation and beauty. Includes suggestions for helping to save the disappearing wetlands. Verso of poster shows photographs of different types of wetlands.https://digitalcommons.cwu.edu/government_posters/1162/thumbnail.jp
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