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Duck Production Studies on the Prairie Potholes of South Dakota

Description: From introduction: "Determine the extent, distribution, and numbers of small water areas formerly and now present in the prairie pothole region of the Dakotas and Minnesota; to determine their importance to wildlife, the factors bringing about their disappearance, and to develop, if possible, methods for their preservation, if that appears warranted."
Date: March 1956
Creator: Evans, Charles D.
Partner: UNT Libraries Government Documents Department

Summary of Sportsmen's Expenditures: Missouri River Basin

Description: From introduction: "These surveys were for the purpose of determining the average daily expenditure of fisherman or hunters using specific areas, and this daily expenditure was then used to determine the expenditure per pound of fish, or unit of bird or animal bagged,"
Date: March 1957
Creator: Nichilson, A. J.
Partner: UNT Libraries Government Documents Department

Atlas of Coal/Minerals and Important Resource Problem Areas for Fish and Wildlife in the Conterminous United States

Description: This atlas highlights areas in the conterminous United States of potential concern involving coal and minerals development activities and fish and wildlife resources, in particular the Important Resource Problem Areas (IRPs) designated in 1980 by the U.S. Fish and Wildlife Service (FWS) as areas of emphasis in policy making.
Date: July 1981
Creator: Honig, Robert A.
Partner: UNT Libraries Government Documents Department

Limnology of Yellowstone Lake in Relation to the Cutthroat Trout

Description: Limnological data collected from 1954 to 1959 on surface currents, bottom currents, temperatures, bottom soils, water chemistry, plankton, bottom fauna, and higher aquatic plants are related to the biology of the cutthroat trout, Salmo clarki lewisi, in Yellowstone Lake (Wyoming). The lake, formed on Eocene lava, is oliotrophic and low in dissolved solids. Diatomus shoshone, Daphnia shoedleri, and Conochilus unicornis made up more than 90 percent of the macroscopic zooplankton by number. Upwelling in West Thumb was demonstrated by temperature stratification and conductivities. Plankton distribution and abundance were related to currents and water chemistry. Trout less than 315 millimeters in total length are not caught readily because of their feeding habits and greater dispersal. There is evidence that the heavy trout harvest in the northern part of the lake allowed Gammarus lacustris, an important food, to become locally abundant.
Date: 1961
Creator: Benson, Norman Gustaf
Partner: UNT Libraries Government Documents Department

Waterfowl Populations in the Upper Chesapeake Region

Description: The Upper Chesapeake region is one of the more important areas in North America for migrating and wintering waterfowl. Conditions here affect the welfare of waterfowl populations in the entire Atlantic Flyway. During the more recent years of this study there was a noticeable decline in the waterfowl populations in this region, probably as a result of destruction and disturbance of habitat along with a steady increase in hunting pressure. The purpose of this report is to present information on the distribution, ecology, and harvest of waterfowl in the Chesapeake Bay Region, so that this information can be used as a guide to management and preservation of waterfowl populations.
Date: July 1962
Creator: Stewart, Robert E.
Partner: UNT Libraries Government Documents Department

National Coastal Ecological Research : Existing and Proposed Energy Developments

Description: The purpose of this report is to compile existing information about energy developments in the coastal zone. Information was gathered on existing and proposed energy developments in order to allow some assessment of future impacts in the coastal zone from energy-related developments.
Date: January 1981
Creator: Gordon, Sharon L.
Partner: UNT Libraries Government Documents Department

Limnological and Fisheries Studies of the St. Marys River, Michigan, in Relation to Proposed Extension of the Navigation Season, 1982 and 1983, Volume 1 - Main Report

Description: Report that contains "quantitative and qualitative limnological and biological data from the St. Marys River to help assess environmental impacts from proposed navigation season extension activities." (p. xiv)
Date: January 1986
Creator: Liston, Charles R. & McNabb, Clarence D.
Partner: UNT Libraries Government Documents Department

Mangrove Community Boundary Interpretation and Detection of Areal Changes on Marco Island, Florida: Application of Digital Image Processing and Remote Sensing Techniques

Description: Pilot project conducted in the Marco Island area of southwest Florida to develop accurate, computer digitized base camps of mangrove communities from high altitude aerial photographs.
Date: August 1986
Creator: Patterson, Samuel Goodman
Partner: UNT Libraries Government Documents Department

Coal Project: Five Year Framework (FY 1976 Through FY 1980)

Description: This document presents the total scope of the framework for the U.S. Coal Project during fiscal years 1976 through 1980. The project was initiated to provide information for appropriate involvement of the Fish and Wildlife Service in U.S. coal development actions.
Date: July 14, 1976
Creator: Coal Project (U.S.)
Partner: UNT Libraries Government Documents Department

Effects of Alterations to Low Gradient Reaches of Utah Streams

Description: This report describes an investigation of the effects of stream channelization on fish and macro-invertebrates in low gradient reaches of Blacksmith Fork River and the Logan River in the floodplain of Cache Valley in northern Utah. Channelization adversely affected both fish and macro-invertebrate populations and biomass, with the severity of impact directly related to the amount and duration of disturbance of the physical habitat.
Date: April 1980
Creator: Wydoski, Richard S.
Partner: UNT Libraries Government Documents Department

Matrix 1: Organizational Matrix for Determining Plant Adaptability and Desirability for Reclamation and Rehabilitation of Lands in the Powder River Basin of Montana and Wyoming

Description: Matrix for a variety of plants in the Powder River Basin of Montana and Wyoming according to descriptors including taxonomic, geographic, biologic, ecologic, and economic.
Date: 197u
Creator: U.S. Fish and Wildlife Service
Partner: UNT Libraries Government Documents Department