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University of Nebraska - Lincoln

Wyoming

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Full-Text Articles in Physical Sciences and Mathematics

Biostratigraphic Revision Of Esthonyx (Tillidontia, Mammalia) In The Contect Of Climate Change In The Lower Eocene Of The Bighorn Basin, Wyoming, John Colter Johnson Jul 2024

Biostratigraphic Revision Of Esthonyx (Tillidontia, Mammalia) In The Contect Of Climate Change In The Lower Eocene Of The Bighorn Basin, Wyoming, John Colter Johnson

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

Esthonyx is an early Eocene tillodont found in North America, Europe, and India. The genus was named by Edward Drinker (E. D.) Cope in 1874 based on specimens from the San Jose Formation in New Mexico. Since then, several species of Esthonyx have been described from North America alone. The best record of Esthonyx comes from the central Bighorn Basin (BHB) in Wyoming, where it appears in 220 localities in a 640 m-thick stratigraphic succession. Since the last summary of Esthonyx in the BHB, several hundred new specimens have been collected and curated at the Denver Museum of Nature and …

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Wyoming Wildlife: A Natural History, Paul Johnsgard, Thomas D. Mangelsen Jun 2019

Wyoming Wildlife: A Natural History, Paul Johnsgard, Thomas D. Mangelsen

Zea E-Books Collection

This book surveys Wyoming’s mammal, bird, reptile, and amphibian faunas. In addition to introducing the state’s geography, geology, climate, and major ecosystems, it provides 65 biological profiles of 72 mammal species, 195 profiles of 196 birds, 9 profiles of 12 reptiles, and 6 profiles of 9 amphibians. There are also species lists of Wyoming’s 117 mammals, 445 birds, 22 reptiles, and 12 amphibians. Also included are descriptions of nearly 50 national and state properties, including parks, forests, preserves, and other public-access natural areas in Wyoming. The book includes a text of more than 150,000 words, nearly 700 references, a glossary …

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Deep Subsurface Drip Irrigation Using Coal-Bed Sodic Water: Part Ii. Geochemistry, Carleton R. Bern, George N. Breit, Richard W. Healy, John W. Zupancic Jan 2016

Deep Subsurface Drip Irrigation Using Coal-Bed Sodic Water: Part Ii. Geochemistry, Carleton R. Bern, George N. Breit, Richard W. Healy, John W. Zupancic

United States Geological Survey: Staff Publications

Waters with low salinity and high sodium adsorption ratios (SARs) present a challenge to irrigation because they degrade soil structure and infiltration capacity. In the Powder River Basin of Wyoming, such low salinity (electrical conductivity, EC 2.1 mS cm−1) and high-SAR (54) waters are co-produced with coal-bed methane and some are used for subsurface drip irrigation (SDI). The SDI system studied mixes sulfuric acid with irrigation water and applies water year-round via drip tubing buried 92 cm deep. After six years of irrigation, SAR values between 0 and 30 cm depth (0.5–1.2) are only slightly increased over non-irrigated …

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Current Distribution Of Rare Fishes In Eastern Wyoming Prairie Streams, Christina E. Barrineau, Elizabeth A. Bear, Anna C. Senecal Dec 2010

Current Distribution Of Rare Fishes In Eastern Wyoming Prairie Streams, Christina E. Barrineau, Elizabeth A. Bear, Anna C. Senecal

The Prairie Naturalist

Distributions of native fishes have declined throughout the Great Plains region. Over 50% of native fishes within the Missouri River drainage in Wyoming have experienced declines in distributions. Thus, the primary goal of our study was to assess current distribution of rare native fishes in eastern Wyoming prairie streams. Of the 10 rare fishes sampled, goldeye (Hiodon alosoides), western silvery minnow (Hybognathus argyritis), plains minnow (H. hankinsoni), and Iowa darter (Etheostoma exile) have experienced declines in distribution over the last decade. Plains topminnow (Fundulus sciadicus) appears to be expanding to areas outside …

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Overview Of The First Use Of Gps 1991/Gis 1992 During A Wyoming Skunk Rabies Epizootic, Craig A. Ramey, Kenneth H. Mills, Marshall Robin Jan 2007

Overview Of The First Use Of Gps 1991/Gis 1992 During A Wyoming Skunk Rabies Epizootic, Craig A. Ramey, Kenneth H. Mills, Marshall Robin

United States Department of Agriculture Wildlife Services: Staff Publications

Striped skunks (Mephitis mephitis) are one of the most important reservoirs of wildlife rabies on the Great Plains of North America. During a skunk rabies epizootic in a previously rabies-free area of northwestern Wyoming, we studied the spread of rabies from the index case occurring in 1988 until the Shoshone River epizootic ended in 1993. All specimens were sent to the Wyoming State Veterinary Laboratory for Fluorescent Antibody Testing for rabies. The goal of federal, state, county, and local agencies was to address the public's fear about the health and safety of humans and animals. Following several rabid …

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Wyoming's M-44 Program: An Overview And Assessment Of Private And Commercial Applicators, Henry R. Uhden Apr 1995

Wyoming's M-44 Program: An Overview And Assessment Of Private And Commercial Applicators, Henry R. Uhden

Great Plains Wildlife Damage Control Workshop Proceedings

Wyoming's legislation funding predator control has progressed from a bounty system, to a mill levy system, to the current fee assessment per head. The Wyoming Department of Agriculture administers an M-44 predator control program for private and commercial applicators' use with livestock depredators. As predatory impacts on livestock have increased, use of M- 44 has also broadened. The M-44 is a mechanical device utilizing a spring-activated ejector, that propels the dry toxicant sodium cyanide into the mouth of the target species when pulled. Death of the animal is accomplished by inhalation of hydrogen cyanide which forms when sodium cyanide comes …

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Permo-Pennsylvanian Section Of The Hartville Area Of Wyoming (With Implications For Nebraska), G. E. Condra, E. C. Reed Jan 1935

Permo-Pennsylvanian Section Of The Hartville Area Of Wyoming (With Implications For Nebraska), G. E. Condra, E. C. Reed

Conservation and Survey Division

No abstract provided.

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