Life Sciences Commons^™

Bioavailability And Exposure Assessment Of Petroleum Hydrocarbons And Trace Elements In Birds Nesting Near The North Platte River, Casper, Wyoming, Kimberly Dickerson, Thomas W. Custer, Christine M. Custer, Ken Allen

United States Fish and Wildlife: Staff Publications

The objectives of this study were to compare refinery-related petroleum hydrocarbon concentrations in nestling tree swallows (Tachycineta bicolor) and nestling house wrens (Troglodytes aedon) at sites along the North Platte River Casper, Wyoming in 1997 and 1998; and to determine if contaminants were present in concentrations that could adversely affect the birds. Because trace element concentrations, mixed function oxidase activity, and the variation in DNA are often associated with petroleum hydrocarbon concentrations in birds, each was measured as indicators of petroleum contamination. Sediment and aquatic invertebrates were also sampled for characterizing a possible contaminant source to …

Colorado River Fishery Project - Vernal, Ut

United States Fish and Wildlife: Staff Publications

The Colorado River Fishery Project (CRFP) was originally established in 1979 to conduct research and management activities benefiting endangered fishes in the Upper Colorado River Basin. Our mission is to develop and implement techniques that are used to recover four endangered fishes: the Colorado pikeminnow, humpback chub, bonytail, and razorback sucker, all native to the Upper Colorado River Basin.

Avian Vacuolar Myelinopathy: A Newly Recognized Fatal Neurological Disease Of Eagles, Waterfowl And Other Birds, John R. Fischer, Lynn A. Lewis, Tom Augspurger, Tonie E. Rocke

United States Fish and Wildlife: Staff Publications

Since 1994, wildlife biologists and wildlife health specialists have worked to determine the cause of avian vacuolar myelinopathy (AVM), a neurologic disease of bald eagles (Haliaeetus leucocephalus) and other birds. The causes of morbidity and mortality in wildlife typically are determined through both antemortem and postmortem examinations, combined with ancillary tests for microbiological organisms, toxicants and other etiologies. However, the etiology of AVM has not been determined yet, despite extensive diagnostic investigations, including examinations for common disease agents, as well as infrequent or unusual causes of mortality. With the failure of standard diagnostic testing to determine the cause …

The Influence Of Sylvatic Plague On North American Wildlife At The Landscape Level, With Special Emphasis On Black-Footed Ferret And Prairie Dog Conservation, Michael F. Antolin, Pete Gober, Bob Luce, Dean E. Biggins, William E. Van Pelt, David B. Seery, Micael Lockhart, Mark Ball

United States Fish and Wildlife: Staff Publications

"Prairie-dogs are distributed over a large part of the Great Plains and Rocky Mountain regions. Their colonies often number thousands of individuals, and their destruction of grasses and other forage plants makes them of considerable economic importance. Drastic measures are frequently necessary to prevent the destruction of crops of grain and hay. The Biological Survey is exterminating these rodents in national forests and in the public domain. The information in this report, in regards to the several species and their distribution, as indicated by maps, will aid materially in efforts, national or state, to control or exterminate them," said Henry …

Address Given By The Director Of The United States Fish And Wildlife Service, Steve Williams

United States Fish and Wildlife: Staff Publications

As the theme of this conference implies, it often pays to look back, before moving forward. Theodore Roosevelt was a legendary, national, conservation leader. Throughout his life, he embodied the spirit of the original conservationist. An avid outdoorsman, he enjoyed hunting and fishing. He recognized the detrimental impact of market hunting and the reckless attitudes that led to the disappearance of the great buffalo herds and to the extinction of the passenger pigeon.

Contaminant Assessment Process Report For Arapaho National Wildlife Refuge, Joel Chirhart, Laura Coppock, Andrew Archuleta

United States Fish and Wildlife: Staff Publications

The Biomonitoring of Environmental Status and Trends (BEST) program identifies and evaluates the effects of environmental contaminants on lands and biological resources managed by the Department of the Interior (DOI). The primary goals of the BEST program are: 1) determine the status and trends of environmental contaminants and their effects on biological resources, 2) identify, assess, and predict the effects of contaminants on ecosystems and biological populations, and 3) provide summary information to managers and the public for guiding conservation efforts. One tool used to reach these goals is the Contaminant Assessment Process (CAP). CAP is a two-part process involving …

Lander Fish And Wildlife Management Office

United States Fish and Wildlife: Staff Publications

The FWMAO located in Kander, WY, provided fishery assistance to the tribes since 1941. In 1972, at the request of the Shoshone and Arapaho Tribes and supported through congressional action, the office was enlarged to provide both fish and wildlife management assistance.

Today, the Lander FWMAO provides fish and wildlife management assistance to the Wind River Reservation and National Wildlife Reservation contains some of the most pristine mountainous areas in the lower 48 states with over 250 lakes and reservoirs and over 1100 miles of rivers and streams most of which provide some of the highest quality trout fisheries in …

Determination Of Impacts On The Endangered Wyoming Toad (Bufo Baxteri) At Mortenson National Wildlife Refuge From Ammonium Nitrate Concentrations, Edward E. Little, Robin D. Calfee, Kimberly Dickerson

United States Fish and Wildlife: Staff Publications

The endangered Wyoming toad (Bufo baxteri) is found only as a reintroduced population at Mortenson National Wildlife Refuge (NWR) in the Laramie Plains of southeast Wyoming. Reasons for the decline of this amphibian are unknown. Data on predation, habitat modification, soil and water conditions (Stone 1991), and water quality (Ramirez 1992; Ramirez and Armstrong 1992), are available; but, none of these parameters are documented as posing serious threats to the toad.

One threat that has not been investigated is the potential for agricultural fertilizers containing nitrates to enter surface water at Mortenson NWR. Nitrates are transported by irrigation …

Utah Fish & Wildlife Management Assistance

United States Fish and Wildlife: Staff Publications

The Utah FWMAO, formerly known as the Roosevelt FWMAO, was originally established in 1971 to provide fish and wildlife technical assistance to Indian tribes in Utah in order to fulfill its trust responsibility.

Technical assistance includes helping tribes manage their fish, wildlife, and habitat resources. One of our major conservation projects is working with Tribes, other Federal agencies and State natural resource agencies to conserve Bonneville cutthroat trout and other native species.

A Northeast Dairy Perspective Of Farming And Conservation, Carl W. Schwartz

United States Fish and Wildlife: Staff Publications

An oxcart brought Colonel John Randall the 300 or so miles from Stonington, Connecticut, to Pharsalia, New York, to build the first house in town in 1797. The lands were wooded with mixed northern hardwoods (beech, birch, maple) growing in thin rocky soils. By 1875, when Berthier Mathewson, farmer and justice of the peace, owned the property, nearly 70 percent of the 23,458 acres in Pharsalia had been improved, leaving only 7,651 acres wooded. Gross sales of farm products that year totaled $71,382 and, aside from a couple of merchants, a hotel keeper and a saw mill, farming was the …

Oil Field Produced Water Discharges Into Wetlands In Wyoming, Pedro Ramirez Jr.

United States Fish and Wildlife: Staff Publications

Approximately 600 oil field produced water discharges are permitted in Wyoming by the State’s Department of Environmental Quality's (WDEQ) National Pollutant Discharge Elimination System (NPDES) permit program. Wyoming is one of a few states that allows the discharge of oil field produced water into surface waters for beneficial use by livestock and wildlife. Sixty-six wetland sites receiving oil field produced water discharges in Wyoming were surveyed to determine the percentage of discharges in compliance with NPDES permit requirements and to determine the amount of chronic oil releases associated with these discharges. Separator pits were also surveyed to determine wildlife mortality …