Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Environmental Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 21511 - 21540 of 25008

Full-Text Articles in Entire DC Network

Rattlesnakes (Crotalus Viridis Viridis), Walter E. Howard Jan 1994

Rattlesnakes (Crotalus Viridis Viridis), Walter E. Howard

Prevention and Control of Wildlife Damage Handbook

Rattlesnakes (Crotalus viridis viridis) are distinctly American serpents. There are 15 species of rattlesnakes in the United States and 25 in Mexico. Rattlesnakes are usually identified by their warning rattle—a hiss or buzz—made by the rattles at the tip of their tails. Rattlesnakes occur only in North and South America and range from sea level to perhaps 11,000 feet (over 3,000 m) in California and 14,000 feet (4,000 m) in Mexico, although they are not abundant at the higher elevations. Young or small species of rodents comprise the bulk of the food supply for most rattlesnakes. When a …


Turtles, James F. Fowler, Jimmy L. Avery Jan 1994

Turtles, James F. Fowler, Jimmy L. Avery

Prevention and Control of Wildlife Damage Handbook

Turtles (Terrapene carolina) occur on all continents except Antarctica. Any permanent body of water is a potential home for turtles. Turtles are seldom a pest to people. Most turtles are not protected by state laws.


Specimen Labels, Scott E. Hygnstrom Jan 1994

Specimen Labels, Scott E. Hygnstrom

Prevention and Control of Wildlife Damage Handbook

This section contains specimen labels of various products used for controlling wildlife damage. Products included here were selected as examples of registered vertebrate pesticides. Space limitations make it impossible to include labels from every available product. Inclusion of trade names, proprietary products, or company names does not imply endorsement by the University of Nebraska Cooperative Extension, USDA-APHIS-Animal Damage Control, or the Great Plains Agricultural Council. Similarly, no discrimination is intended against products or companies not included. Since pesticide labels change frequently, be sure to obtain, read, and follow current label directions when using any pesticide. Check with appropriate federal and …


Merging Conservation With Production In Remnant Bush, Anne Morgan, Alison Fuss Jan 1994

Merging Conservation With Production In Remnant Bush, Anne Morgan, Alison Fuss

Journal of the Department of Agriculture, Western Australia, Series 4

Exports of cutflowers and foliage from Western Australia are now worth about $17 million a year. A third of this is picked from the bush, either on Crown Land or areas of remnant bush on private property. While the industry's future lies in cultivation, bush picking is likely to remain important for some years. This can provide both extra income for farmers and benefit the environment - as long as care is taken


Winter/Spring Population Characteristics Of White-Tailed Deer In An Agricultural/Wetland Complex In Northeastern South Dakota, Brian J. Kernohan Jan 1994

Winter/Spring Population Characteristics Of White-Tailed Deer In An Agricultural/Wetland Complex In Northeastern South Dakota, Brian J. Kernohan

Electronic Theses and Dissertations

Habitat preference, cover characteristics of corn, movements, and sexual segregation patterns of white-tailed deer (Odocoileus virginianus) were evaluated at Sand Lake National Wildlife Refuge (SLNWR) in winter (January - March) and spring (April - June), 1993 and 1994. An average of 20 radio-collared deer were monitored per season, which resulted in 4, 058 relocations. Habitat preference was assessed using 95 and 50% home range contours that were estimated using an adaptive kernel method. Agricultural crops (i.e., corn [Zea mays], row crops other than corn [e.g., soybeans [Glycine max]], small grains [e. g., wheat [Triticum aestivum]], and alfalfa [Medicago sativa]) were …


Winter Diet And Nutritional Condition Of White-Tailed Deer In The Northern Black Hills, South Dakota, Robert G. Osborn Jan 1994

Winter Diet And Nutritional Condition Of White-Tailed Deer In The Northern Black Hills, South Dakota, Robert G. Osborn

Electronic Theses and Dissertations

Habitat deterioration in the northern Black Hills (NBH) of South Dakota may be responsible for declining white-tailed deer (Odocoileus virginianus) population levels (Griffin et al. 1992). Because of the relationship between habitat and nutrition, a two-year research project was initiated in January 1992 to evaluate the physical and nutritional condition of white-tailed deer inhabiting five NBH winter subranges. Habitat variables were measured at 100 random locations on each study area. Pellet groups were collected throughout each study area at two-week intervals during January, February, and March 1992 and 1993. Five female white-tailed deer were collected from each study area in …


Research Reports From Status Report: Identification Of Appropriate Standards For Corrective Action For A Release From Petroleum Underground Storage Tanks, G. Blomquist, Lyle V. A. Sendlein, Thomas Tobin, T. W. Struttmann, James S. Dinger, Paul M. Mcginley, Burl Naugle, Robert Guthries, Ralph R. Huffsey Jan 1994

Research Reports From Status Report: Identification Of Appropriate Standards For Corrective Action For A Release From Petroleum Underground Storage Tanks, G. Blomquist, Lyle V. A. Sendlein, Thomas Tobin, T. W. Struttmann, James S. Dinger, Paul M. Mcginley, Burl Naugle, Robert Guthries, Ralph R. Huffsey

KWRRI Research Reports

This document is a collection of research reports:

  • Cost of Closure and Remediation for Petroleum Underground Storage Tanks
  • Assessment of Number and Distribution of USTs
  • Analysis of Potable Water Sources in Kentucky
  • Analysis of Well Data and Soil Parameters as Related to the STATSGO Kentucky General Soil Map
  • Petroleum Products: Chemical Composition, Tocxicological and Environmental Data
  • Health Risk Analysis for Selected Petroleum Compounds
  • Summary of Analytical Methods
  • Soil Volume Calculations for UST Installations
  • Generic Organic Containment Pathway Analysis for Components of Petroleum in Soil and Groundwater


Effect Of Reservoir Function On Water Quality And Phytoplankton In Lake Taylorville, Christian County, Illinois, Scott Warren Phipps Jan 1994

Effect Of Reservoir Function On Water Quality And Phytoplankton In Lake Taylorville, Christian County, Illinois, Scott Warren Phipps

Masters Theses

As is true for most reservoirs in agricultural areas, Lake Taylorville is currently impacted by excess sedimentation. A system of floodplain wetlands, holding ponds, and sediment basins is being constructed on the tributaries to the reservoir in effort to reduce sediment and nutrient loads. A comprehensive twelve-month assessment of water quality has been conducted to provide a baseline for evaluating the success of this restoration project and to allow predictions regarding future management strategies.

In reservoirs, a continuum of longitudinal gradients result in the establishment of three distinct zones possessing unique physical, chemical and biological properties. The function of these …


Restoration Of Woodland Caribou To The Lake Superior Region, Peter J. P. Gogan, Jean Fitts Cochrane Jan 1994

Restoration Of Woodland Caribou To The Lake Superior Region, Peter J. P. Gogan, Jean Fitts Cochrane

United States National Park Service: Publications

Woodland caribou (Rangifer tarandus caribou) historically occupied the boreal forest zone across the North American continent. The distribution and abundance of the species has declined in the past century. In particular, it has been extirpated from much of the southern limits of its historical range on both sides of the boundary between Canada and the United States (Bergerud 1974). Translocation of animals from extant populations may be used to reestablish populations in portions of the species' former range. Recently, wildlife biologists in Ontario have translocated woodland caribou to a number of sites in or adjacent to Lake Superior. …


Marine Mammal Studies Supported By The Northeast Fisheries Science Center During 1980-89, Gordon T. Waring, Janeen M. Quintal, Tim D. Smith Jan 1994

Marine Mammal Studies Supported By The Northeast Fisheries Science Center During 1980-89, Gordon T. Waring, Janeen M. Quintal, Tim D. Smith

United States Department of Commerce: Staff Publications

Marine mammal research supported by the Northeast Fisheries Science Center from 1980 to 1989 is described in the context of four research areas defined retrospectively: (1) ecological roles and habitat requirements, (2) human interactions, (3) optimum sustainable population size, and (4) research planning and archiving. Within each area, contract and in· house projects are grouped into a number of research topics which are based on actual projects completed. Research activities and results, along with the total amount of money spent, are summarized for each topic. The relationship of the research supported over the decade to the recommendations of a research …


Extension And Education Materials For Sustainable Agriculture, Volume 2, James W. King, Charles A. Francis Jan 1994

Extension And Education Materials For Sustainable Agriculture, Volume 2, James W. King, Charles A. Francis

CARI Extension and Education Materials for Sustainable Agriculture

Extension and Education Materials for Sustainable Agriculture

Curricula in Sustainable Agriculture

Introduction to Curricula in Sustainable Agriculture

Sustainable Agriculture, Agronomy 493/593 Course Outline

Sustainable Agriculture, Agronomy 493/AG*SAT

Principles and Practices of Sustainable Agriculture

Agricultural Ecosystems

Agricultural Ecology

Agroecology

Agricultural Ecology and Sustainability

Alternative Agriculture Curriculum

Sustainable Agriculture (B.S.)

Environment and World Food Production

Issues (Advanced) in Sustainable Agriculture

Crops, Soil, and Civilization, Agronomy 440

Master of Science in Sustainable Systems

Agricultural Ecology

National Curriculum for Sustainable Agriculture

Reshaping Undergraduate and Graduate Education to Include a Whole Systems Emphasis

Sustainable Agriculture Education: A Panel

Impact of Sustainable Agriculture Programs on United.States …


Tolerance Of Bitter Compounds By An Herbivore, Cavia Porcellus, Dale L. Nolte, J. Russell Mason, Stanley Lewis Jan 1994

Tolerance Of Bitter Compounds By An Herbivore, Cavia Porcellus, Dale L. Nolte, J. Russell Mason, Stanley Lewis

United States Department of Agriculture Wildlife Services: Staff Publications

Many plant defensive chemicals are bitter to humans. Because of this taste characteristic, and because bitter compounds are often toxic, such substances, and the plants that contain them, are regarded as generally unpalatable to wildlife. These assumptions may be unwarranted. To test the hypothesis that herbivores are indifferent to 'bitter' tastants, we investigated the responsiveness of guinea pigs (Cavia porcellus) to denatonium benzoate, denatonium saccharide, limonene, L-phenylalanine, naringin, quebracho, quinine, Ro-Pel (a commercial animal repellent containing denatonium saccharide) and sucrose octaacetate. Only quinine and sucrose octaacetate slightly but significantly reduced feeding (P < 0.05). Our findings are inconsistent with the notion that herbivores generally avoid what humans describe as bitter tastes.


Identification Of Tire Leachate Toxicants And A Risk Assessment Of Water Quality Effects Using Tire Reefs In Canals, S. M. Nelson, G. Mueller, D. C. Hemphill, U.S. Bureau Of Reclamation Jan 1994

Identification Of Tire Leachate Toxicants And A Risk Assessment Of Water Quality Effects Using Tire Reefs In Canals, S. M. Nelson, G. Mueller, D. C. Hemphill, U.S. Bureau Of Reclamation

Publications (WR)

Cover is an important component of aquatic habitat and fisheries management. Fisheries biologists often try to improve habitats through the addition of natural and artificial material to improve cover diversity and complexity. Habitat-improvement programs range from submerging used Christmas trees to more complex programs using sophisticated artificial habitat modules. Used automobile tires have been employed in the large scale construction of reefs and fish attractors in marine environments and to a lesser extent in freshwater and have been recognized as a durable, inexpensive and long-lasting material which benefits fishery communities.

Recent studies by the U.S. Bureau of Reclamation have quantified …


A Preliminary Study Of The Potential For Recycling And Waste Minimisation At Edith Cowan University: Report To The Edith Cowan University Student Guild, Eddie Van Etten, Mark Lund, Robert Troeth Jan 1994

A Preliminary Study Of The Potential For Recycling And Waste Minimisation At Edith Cowan University: Report To The Edith Cowan University Student Guild, Eddie Van Etten, Mark Lund, Robert Troeth

Research outputs pre 2011

In recent years there has been a growing realisation worldwide that disposing of large quantities of waste to landfill was not only causing problems of pollution(e.g. leachate and gas production) but suitable sites were rapidly filling up. In Perth it is has been estimated that present landfill sites will only last until 2007 (Sinclair and Knight, 1991). To help extend the life of current landfill sites and in response to environmental concerns the Western . Australia Government produced a State Recycling Blueprint (Department of Commerce and Trade, 1993). This describes strategies for the minimisation of waste production and maximisation of …


Modeling Daily Production Of Aquatic Macrophytes From Irradiance Measurements: A Comparative Analysis, Richard C. Zimmerman, Alejandro C. Pasini, Randall S. Alberte Jan 1994

Modeling Daily Production Of Aquatic Macrophytes From Irradiance Measurements: A Comparative Analysis, Richard C. Zimmerman, Alejandro C. Pasini, Randall S. Alberte

OES Faculty Publications

The importance of submerged aquatic macrophytes to coastal ecosystems has generated a need for knowledge of minimum light levels that will support the maintenance and restoration of healthy populations. Our goals were (1) to evaluate the sensitivity to natural, non-sinusoidal fluctuations in irradiance I of analytical integration techniques for calculating daily carbon gain, (2) to evaluate the Hsat (the daily period of I-saturated photosynthesis) model of daily production relative to models based on instantaneous photosynthesis vs irradiance (P vs I) and (3) to provide some guidance for the temporal density of irradiance data required for accurate estimation of …


The Near-Shore, Soft-Substrate Bivalves Of The Swan Estuary: An Assessment Of Their Use As Biological Indicators, Graham Bailey Jan 1994

The Near-Shore, Soft-Substrate Bivalves Of The Swan Estuary: An Assessment Of Their Use As Biological Indicators, Graham Bailey

Theses : Honours

The soft-substrate bivalves of the Swan Estuary were evaluated for their suitability as biological indicators. The major requirement of a biological indicator is that a response to changing conditions can be shown. Demonstrating that bivalve community and populations respond to changing environmental conditions within The Estuary would fulfill this criteria. To make this assessment the study conducted a quantitative sampling program which established the current structure of the near-shore soft-substrate bivalve community and this was compared with the community established in 1973-74. To evaluate the predictive potential of bivalve structure as an indicator, major environmental conditions in the Estuary were …


Materials Recovery Facilities In The United States Virgin Islands: A Regional Facilities Location Model Study, Lloyd O. Prince Jr. Jan 1994

Materials Recovery Facilities In The United States Virgin Islands: A Regional Facilities Location Model Study, Lloyd O. Prince Jr.

Engineering Management & Systems Engineering Theses & Dissertations

Continental municipalities have derived many benefits from the economies of scale associated with a regional approach to facilities location and management planning. Centralized solid waste processing facilities is an example. Island communities, however, surrounded by miles of ocean, are constrained to a fragmented approach to the facilities location solution. This research was conducted to determine if the regional paradigm suggested in the literature is applicable to a set of island communities connected by an ocean transportation infrastructure. A linear programming (LP) model, constraints and data requirements were developed and applied to a network of islands. A series of hypothetical material …


Carbon Monoxide In The Antarctic Atmosphere: Observations Of Decreasing Concentrations, M. A. K. Khalil, R. A. Rasmussen Jan 1994

Carbon Monoxide In The Antarctic Atmosphere: Observations Of Decreasing Concentrations, M. A. K. Khalil, R. A. Rasmussen

Environmental Science and Management Faculty Publications and Presentations

Hydroxyl radicals remove hundreds, perhaps thousands, of organic gases from the atmosphere and are often regarded as am index of the oxidizing capacity of the Earth's atmosphere (Thompson 1992). In recent years, there have been growing concerns that, over the past century and now, human activities may be depleting hydroxyl concentrations by adding huge amounts of carbon monoxide and methane to the atmosphere. Reduction in the hydroxyl concentrations can then indirectly lead to more global warming, stratospheric ozone depletion, and other disturbances in atmospheric chemistry. Carbon monoxide (CO) is a key component in the determination of hydroxyl radical (OH) concentrations: …


The Nature And Timing Of Wildlife Damage Events In Nebraska: A Five-Year Review Of Requests To Three Extension Wildlife Personnel, Dale J. Hafer, Scott E. Hygnstrom, Ron J. Johnson, Dennis M. Ferraro Dec 1993

The Nature And Timing Of Wildlife Damage Events In Nebraska: A Five-Year Review Of Requests To Three Extension Wildlife Personnel, Dale J. Hafer, Scott E. Hygnstrom, Ron J. Johnson, Dennis M. Ferraro

Great Plains Wildlife Damage Control Workshop Proceedings

We examined 2,241 telephone calls that were received by 3 University of Nebraska- Cooperative Extension personnel (the 3 junior authors) concerning wildlife damage during 1988-1992. Our objectives were to (1) determine the speciedgroups responsible for most damage-related telephone calls, (2) determine the timing of wildlife damage events by speciedgroup, and (3) differentiate damage-related telephone calls by urban versus rural situations.


Twenty-Five Year History Of The Kansas Coyote Damage Control Program, F. Robert Henderson Dec 1993

Twenty-Five Year History Of The Kansas Coyote Damage Control Program, F. Robert Henderson

Great Plains Wildlife Damage Control Workshop Proceedings

In the 1968 legislative session, an appropriate was made to Kansas State University to hire a predator and rodent control specialist. I was hired for this position on July 1, 1968. During August, 1968, I traveled to Missouri and spent a week working with Mr. Bob Smith, a long-time employee of the Missouri Conservation Department's Extension-Trapper program. He taught me how to teach people to trap coyotes.


State Program In Sotuh Dakota For Wildlife Damge Management, Emmett J. Keyser Dec 1993

State Program In Sotuh Dakota For Wildlife Damge Management, Emmett J. Keyser

Great Plains Wildlife Damage Control Workshop Proceedings

In recent years, wildlife professionals have become increasingly more convinced that wildlife-damage programs must be integrated into existing wildlife management structures if both are to succeed in their missions. South Dakota has managed a state-run Animal Damage Control Program through the Department of Game, Fish and Parks since 1974.


Rejex-It'" Ag-36 The Gentle Way To Repel Geese From Golf Courses And Other Turf Areas, Peter F. Vogt Dec 1993

Rejex-It'" Ag-36 The Gentle Way To Repel Geese From Golf Courses And Other Turf Areas, Peter F. Vogt

Great Plains Wildlife Damage Control Workshop Proceedings

Birds have always been a problem in agriculture, specially for berries and fruits. Farmers and home owners have been fighting these problems with limited success for centuries. However, the problems with birds on turf are relatively new and are not even known by many people. The "Complete Guide to Pest Control" (Ware 1988) does not even mention geese as a pest, or golf courses as an area of bird problems.


Utah State University's Berryman Institute For Wildlife Damage Management, Robert H. Schmidt, Michael R. Conover Dec 1993

Utah State University's Berryman Institute For Wildlife Damage Management, Robert H. Schmidt, Michael R. Conover

Great Plains Wildlife Damage Control Workshop Proceedings

In 1990, the College of Natural Resources at Utah State University established a program dedicated to research, education, and extension in wildlife damage management (Schmidt et al. 1992a). This program was initiated with funding from the U. S. Department of Agriculture, Animal and Plant Health Inspection Service, Animal Damage Control (ADC) program and Utah State University.


Pred-X Field Test Results, R.A. Field, J.E. Nel Dec 1993

Pred-X Field Test Results, R.A. Field, J.E. Nel

Great Plains Wildlife Damage Control Workshop Proceedings

During the spring and summer of 1992, a number of sheep producers used Pred-X ear tags to guard against predation by coyotes. We were able to contact 20 of these producers through the help of the Wyoming Wool Growers Association, county agents and companies who sold the tags. Sheep producers in other states also used the tags and we were able to contact 21 of these producers through the cooperation of the American Sheep Industry Association whose representatives printed a short letter and a survey form in the October 1992 National Wool Grower Magazine. Phone calls were made to many …


Status Of M-44 Device, Charles D. Lee Dec 1993

Status Of M-44 Device, Charles D. Lee

Great Plains Wildlife Damage Control Workshop Proceedings

The purpose of this paper is to report on the current status of M-44 (sodium cyanide) capsule and its use. I have included information received from other states and entities that have a registration for M-44s, included some historical information concerning the M-44 program and the current source of supplies.


White-Tailed Deer Home Range Characteristics And Impacts Relative To Field Corn Damage, Kurt C. Vercauteren, Scott E. Hygnstrom Dec 1993

White-Tailed Deer Home Range Characteristics And Impacts Relative To Field Corn Damage, Kurt C. Vercauteren, Scott E. Hygnstrom

Great Plains Wildlife Damage Control Workshop Proceedings

Research was conducted to examine the relationships between the physiological growth stages of field corn; timing and impacts of deer damage on corn yields; and female deer home range characteristics relative to corn growth, harvest, and hunting season.


Methyl Anduanilate Formulations To Repel Birds From Water At Airports And Food At Landfills, Richard A. Dolbeer, Jerrold L. Belant, Larry Clark Dec 1993

Methyl Anduanilate Formulations To Repel Birds From Water At Airports And Food At Landfills, Richard A. Dolbeer, Jerrold L. Belant, Larry Clark

Great Plains Wildlife Damage Control Workshop Proceedings

Bird strikes to aircraft are of increasing concern to the aviation community (BSCE 1990). One factor contributing to strikes is that gulls and other bird species often flock to temporary pools of fresh water at airports after heavy rains (Blokpoel 1976). Another factor is the location of waste disposal facilities near airports which gulls and other bird species use as a food source (Burger and Gochfeld 1983, Greig et al. 1986). The U.S. Federal Aviation Administration issued Order 5200.5 in 1974 to prohibit waste disposal sites within 10,000 ft (3,000 m) of runways used by turbine-powered aircraft. This order was …


The Evolutionary Relationships Of The Skunks To Each Other And The Rest Of The Weasels; With A Note On Behavioral Idiosyncrasies, Jerry W. Dragoo Dec 1993

The Evolutionary Relationships Of The Skunks To Each Other And The Rest Of The Weasels; With A Note On Behavioral Idiosyncrasies, Jerry W. Dragoo

Great Plains Wildlife Damage Control Workshop Proceedings

I will discuss four aspects of my current research with respect to skunks. The first concerns the recognition and conservation of potentially endangered populations of hog-nosed skunks. The second pertains to the evolutionary relationships among the three genera of skunks, based on genetic data. The third aspect also is based on molecular data, and is a study of the relationship of the skunks to the rest of the Mustelidae (weasels). Finally, I will discuss some of the behavioral idiosyncrasies I have observed in my endeavors to obtain skunk specimens.


Public Perceptions Of Wildlife Encounters In The Omaha, Nebraska, Metropolitan Area, Dennis M. Ferraro, Scott E. Hygnstrom Dec 1993

Public Perceptions Of Wildlife Encounters In The Omaha, Nebraska, Metropolitan Area, Dennis M. Ferraro, Scott E. Hygnstrom

Great Plains Wildlife Damage Control Workshop Proceedings

We conducted this study to determine (1) the occurrence of human-wildlife interaction in the greater Omaha, Nebraska metropolitan area, (2) variations in interactions among urban habitat types, (3) the actions that people take in response to urban wildlife encounters, and (4) information channels that the public in this area uses to gain advice concerning wildlife management. Based on this information we plan to improve assistance criteria, educational materials, and programs relative to urban audiences.


Are Farmer And The Environment Natural Enemies Like The Sheep And The Coyote?, B.L. Flinchbaugh Ph.D. Dec 1993

Are Farmer And The Environment Natural Enemies Like The Sheep And The Coyote?, B.L. Flinchbaugh Ph.D.

Great Plains Wildlife Damage Control Workshop Proceedings

Agricultural policy historically has been price and income policy for commercial farmers. Price supports, land retirement, stored reserves and deficiency payments have been the backbone of farm bills since Roosevelt's AAA (Agriculture Adjustment Act). Preservation of the family farm was the goal, along with an abundant supply of high quality food at reasonable prices, to convince the consumer that commercial agriculture policy was in their "best interests."