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2000

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Articles 1 - 30 of 126

Full-Text Articles in Natural Resources Management and Policy

Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 1999-2003 Annual Report, 1 September 1999 - 31 October 2000, Philip W. Sadler, Robert E. Harris, John E. Olney, Robert J. Latour Dec 2000

Evaluation Of Striped Bass Stocks In Virginia, Monitoring And Tagging Studies, 1999-2003 Annual Report, 1 September 1999 - 31 October 2000, Philip W. Sadler, Robert E. Harris, John E. Olney, Robert J. Latour

Reports

To document continued compliance with Federal law, the Anadromous Fishes Program of the Virginia Institute of Marine Science (VIMS) has monitored the size and age composition, sex ratio and maturity schedules of the spawning striped bass stock in the Rappahannock River since December 1981 utilizing commercial pound nets and, since 1991, variable-mesh experimental gill nets. Spawning stock assessment was expanded to include the James River in 1994 utilizing 11 commercial fyke nets and variable-mesh experimental gill nets. The use of fyke nets was discontinued after 1997. In conjunction with the monitoring studies, tagging programs have been conducted in the James …

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The Savannah River Site: Site Description, Land Use And Management History, David L. White, Karen F. Gaines Dec 2000

The Savannah River Site: Site Description, Land Use And Management History, David L. White, Karen F. Gaines

Publications

The 78,000-ha Savannah River Site, which is located in the upper Coastal Plain of South Carolina along the Savannah River, was established as a nuclear production facility in 1951 by the Atomic Energy Commission. The site’s physical and vegetative characteristics, land use history, and the impacts of management and operations are described. Aboriginal and early European settlement was primarily along streams, where much of the farming and timber cutting have occurred. Woodland grazing occurred in the uplands and lowlands. Land use intensity increased after the Civil War and peaked in the 1920s. Impacts from production of cotton and corn, naval …

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Predicted Land Use Changes In Agricultural Areas Of Wa And Resulting Impact On The Extent Of Dryland Salinity, C E. Mcconnell Dec 2000

Predicted Land Use Changes In Agricultural Areas Of Wa And Resulting Impact On The Extent Of Dryland Salinity, C E. Mcconnell

Resource management technical reports

An assessment of current and possible future land use in Western Australia was undertaken as part of the National Land and Water Resources Audit. This data was used to assess the impact of land use change on the future extent of salinity. It was found that in some areas there is real capacity for changing land use to impact on recharge to the watertable.

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Rogue River Watershed Project / Rogue River Watershed Management Plan, Annis Water Resources Institute Dec 2000

Rogue River Watershed Project / Rogue River Watershed Management Plan, Annis Water Resources Institute

Watershed Management Plans and Reports

The Rogue River is located in west central lower Michigan and is a major tributary of the Grand River. The Rogue River Watershed refers to all the land that is drained by the Rogue River. This area is 167,625 acres and includes portions of Kent, Montcalm, Muskegon, Newaygo, and Ottawa counties. The City of Rockford and Cedar Springs, and the villages of Sparta, Kent City, Sand Lake, and Casnovia are within the Rogue River Watershed boundaries. The Rogue River is fed by wetlands, county drains, lakes, and both warm and cool-cold water tributaries. The cool-cold water tributaries help to sustain …

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Water Resources Year In Review - Winter 2000, Annis Water Resource Institute Dec 2000

Water Resources Year In Review - Winter 2000, Annis Water Resource Institute

AWRI Reviews

No abstract provided.

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Middlesex County Shoreline Situation Report, Marcia Berman, Harry Berquist, Sharon Dewing, J. B. Glover, Carl Hershner, Tamia Rudnicky, Daniel E. Schatt, Kevin Skunda Dec 2000

Middlesex County Shoreline Situation Report, Marcia Berman, Harry Berquist, Sharon Dewing, J. B. Glover, Carl Hershner, Tamia Rudnicky, Daniel E. Schatt, Kevin Skunda

Reports

No abstract provided.

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The Effectiveness Of The Asos, Mmts, Gill, And Crs Air Temperature Radiation Shields*, K. G. Hubbard, X. Lin, E.A. Walter-Shea Nov 2000

The Effectiveness Of The Asos, Mmts, Gill, And Crs Air Temperature Radiation Shields*, K. G. Hubbard, X. Lin, E.A. Walter-Shea

School of Natural Resources: Faculty Publications

Periodic upgrades of air temperature measurement systems in surface weather station networks cause data discontinuities. From a climatological viewpoint, it is necessary to evaluate the air temperature data discontinuities when air temperature radiation shields are upgraded. This study was undertaken to investigate the effectiveness of four common air temperature radiation shields including the Automated Surface Observing System (ASOS), the Maximum–Minimum Temperature System (MMTS), the Gill, and the Cotton Region Shelter (CRS) shields. The solar radiation shielding effectiveness for each shield under typical grass ground surface and different artificial surfaces (black, white, and aluminum) were investigated. The shield effectiveness was evaluated …

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Horse Creek Fen, Birdwood Creek And Kelly Ranch Inventory, Robert F. Steinauer Nov 2000

Horse Creek Fen, Birdwood Creek And Kelly Ranch Inventory, Robert F. Steinauer

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

Horse Creek Fen preserve is a complex of wetland communities (Sandhills fen, Sandhills freshwater marsh, and northern sedge wet meadow) associated with Horse Creek, a ditched stream that drains the Allen Valley fen. Fen vegetation on the preserve is limited to approximately 20 acres on the western boundary of the preserve where it abuts the eastern end of the Allen Valley fen (Steinauer et al. 1996). The fen vegetation is surrounded primarily by Sandhills freshwater marsh, which in turn is surrounded by northern sedge wet meadow. Additional Sandhills freshwater marsh occurs near the eastern boundary of the preserve. The eastern …

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Resource Law Notes Newsletter, No. 50, Fall 2000, University Of Colorado Boulder. Natural Resources Law Center Oct 2000

Resource Law Notes Newsletter, No. 50, Fall 2000, University Of Colorado Boulder. Natural Resources Law Center

Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)

No abstract provided.

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Water Resources Review - Fall 2000 Vol 13 No 2, Annis Water Resources Institute Oct 2000

Water Resources Review - Fall 2000 Vol 13 No 2, Annis Water Resources Institute

AWRI Reviews

No abstract provided.

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Mathews County Shoreline Situation Report (2000), Marcia Berman, Harry Berquist, Sharon Dewing, J. B. Glover, Carl Hershner, Tamia Rudnicky, Dan Schatt, Kevin Skunda Oct 2000

Mathews County Shoreline Situation Report (2000), Marcia Berman, Harry Berquist, Sharon Dewing, J. B. Glover, Carl Hershner, Tamia Rudnicky, Dan Schatt, Kevin Skunda

Reports

No abstract provided.

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Managing Sprawl In The Land Of Unintended Consequences, Robert S. Bucci Sep 2000

Managing Sprawl In The Land Of Unintended Consequences, Robert S. Bucci

New England Journal of Public Policy

Americans witnessing the bulldozing of their country’s pastures, farmlands, and sensitive habitats to erect suburban housing tracts and commercial centers have come to realize that the remaining open land may be too precious to waste. Residential and commercial development is no longer quickly embraced to stimulate economic progress and prosperity. Municipalities are learning that development often extracts a price — sometimes the loss of community character and local charm, sometimes tax revenues that fall short of increased expenditures, and sometimes just plain ugliness. Responding to the new reality, many community officials have initiated unilateral ordinances regulating the development of open …

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Environmental Finance Charette, Hyannis Park On Lewis Bay: A Case Study, New England Environmental Finance Center, Environmental Finance Center Of University Of Maryland Sep 2000

Environmental Finance Charette, Hyannis Park On Lewis Bay: A Case Study, New England Environmental Finance Center, Environmental Finance Center Of University Of Maryland

Water

The town of Yarmouth currently has a $30 million septic sludge treatment plant and transport lines in place. The vast majority of the dwellings and businesses in the Hyannis Park area are on septic systems that are viable and Title 5 compliant, regardless of age. Conventional, "non-failing" septic systems, however, were never intended to remove form their effluent nutrients such as nitrogen. These have become recognized as an environmental threat only as our understanding of the impacts of excess nutrients on ecosystems has increased in recent decades.

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Virginia's Public Beach Board 20 Years Of Coastal Management, Donna A. Milligan, C. Scott Hardaway Jr. Sep 2000

Virginia's Public Beach Board 20 Years Of Coastal Management, Donna A. Milligan, C. Scott Hardaway Jr.

Reports

No abstract provided.

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Pride Water Quality Assessment Report: I. Problems And Programs, Kentucky Water Resources Research Institute. University Of Kentucky Sep 2000

Pride Water Quality Assessment Report: I. Problems And Programs, Kentucky Water Resources Research Institute. University Of Kentucky

KWRRI Research Reports

This report provides an overview of the water quality problems and associated state and federal programs in the 40 counties that make up the PRIDE region. The 2000 Kentucky 305(b) stream assessment has identified over 1000 miles of impaired stream within the region. The major cause of pollution in the region is related to problems with pathogens. Much of these problems are related to straight pipes and failing septic and wastewater systems. It has been estimated that there are over 35,000 straight pipes and failing septic systems in the PRIDE region. A second major environmental impact in the region is …

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Pride Water Quality Assessment Report: Iii. Existing And Proposed Monitoring Network, Kentucky Water Resources Research Institute, University Of Kentucky Sep 2000

Pride Water Quality Assessment Report: Iii. Existing And Proposed Monitoring Network, Kentucky Water Resources Research Institute, University Of Kentucky

KWRRI Research Reports

This document provides a recommendation for proposed sampling sites in support of the general water quality assessment of the 40 county PRIDE region. A general assessment of the associated environmental problems and programs in the region can be found in the companion report: PRIDE Water Quality Assessment Report I: Problems and Programs while the report PRIDE Water Quality Assessment Report II: Chemical, Biological and Habitat Assessments provides a 10 year baseline assessment of environmental conditions in the region as measured by indicators of pH, fecal coliforms, habitat assessment, and macro-invertebrate assessment.

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Pride Water Quality Assessment Report: Ii. Chemical, Biological And Habitat Assessments, Kentucky Water Resources Research Institute, University Of Kentucky Sep 2000

Pride Water Quality Assessment Report: Ii. Chemical, Biological And Habitat Assessments, Kentucky Water Resources Research Institute, University Of Kentucky

KWRRI Research Reports

The efficient utilization of federal funds in improving the water quality and aquatic habitat of the region requires a mechanism for assessing and evaluating the impacts of the proposed and ongoing projects as well as some mechanism for prioritizing the allocation of additional funds. In order to evaluate the effectiveness of these projects it is important to provide a formal monitoring and assessment program based on sound scientific principles. This report provides an initial 10 year baseline assessment of the existing water quality conditions in the 40 county PRIDE·region for the purpose of evaluating the impacts of the PRIDE programs …

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Relationships Between Abundance Of Physically Complex Habitat And Benthic Macroinvertebrate Community Parameters In The James River, Nelson County, Va, Tammy Lee Shumaker Aug 2000

Relationships Between Abundance Of Physically Complex Habitat And Benthic Macroinvertebrate Community Parameters In The James River, Nelson County, Va, Tammy Lee Shumaker

Theses & Honors Papers

This study shows the importance of structurally complex habitat on abundance and diversity of organisms in a benthic macroinvertebrate community in the James River, Nelson County, Virginia. Structural complexity was manipulated by attaching stones to five concrete blocks (12.8 ± 0.97% coverage; mean ± SE) and comparing organism abundance on these blocks and blocks lacking stones (0% coverage). Concrete blocks were randomly placed at a site in the James River on November 14, 1999 and collected on December 12, 1999. Macroinvertebrates and particulate organic and inorganic matter on the blocks were collected. Total invertebrate abundance, abundance of eight individual taxa, …

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Ecology Of Elk In The Pine Ridge Region Of Northwestern Nebraska: Seasonal Distribution, Characteristics Of Wintering Sites, And Herd Health, Michael A. Cover Aug 2000

Ecology Of Elk In The Pine Ridge Region Of Northwestern Nebraska: Seasonal Distribution, Characteristics Of Wintering Sites, And Herd Health, Michael A. Cover

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.

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Fundamentals Of Economic Principles And Wildlife Management, Peter W. Schuhmann, Kurt A. Schwabe Aug 2000

Fundamentals Of Economic Principles And Wildlife Management, Peter W. Schuhmann, Kurt A. Schwabe

Human Conflicts with Wildlife: 2002 Symposium

This paper presents an overview of the economic fundamentals involved in wildlife management, with special consideration for cases involving harmful wildlife-human interactions. The process of benefit-cost analysis is used as a unifying platform for incorporating both theoretical and empirical issues. Topics such as external market effects and public goods are detailed in order to give the reader a theoretical foundation for understanding the economic perspective on the problems associated with defining and attaining optimally managed wildlife populations. To these principles we add practical considerations for measuring the costs and benefits associated with wildlife populations. Different categories of wildlife values, such …

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Damage Abatement And Compensation Programs As Incentives For Wildlife Management On Private Land, Jonathan K. Yoder Aug 2000

Damage Abatement And Compensation Programs As Incentives For Wildlife Management On Private Land, Jonathan K. Yoder

Human Conflicts with Wildlife: 2002 Symposium


Public damage abatement and compensation programs may be used to alter private incentives for damage abatement and habitat provision. A model is developed that explains the economic logic behind prevalent characteristics of public wildlife damage programs. The model is supported with an examination of a broad cross-section of wildlife agency policy and law. The model can be used by wildlife managers and policy makers as a conceptual framework for understanding the incentive effects of compensation and abatement policy.

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The Endangered Species Act And Private Landowner Incentives, Jeffrey A. Michael Aug 2000

The Endangered Species Act And Private Landowner Incentives, Jeffrey A. Michael

Human Conflicts with Wildlife: 2002 Symposium

While intended to increase the habitat available to endangered species, the restrictions of the Endangered Species Act (ESA) increase the costs of harboring an endangered species to private landowners and create incentives for private landowners to reduce habitat. This paper illustrates the incentive for habitat destruction with a simple model of private land use under the ESA, and uses it to predict the effects of changes in policy or biological conditions on private landowner incentives. Many anecdotal accounts and recent empirical research support the predictions of the model. Because of the ESA’s perverse incentives, many have proposed replacing the punitive …

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Economic Considerations Of Damage Assessment, Richard M. Engeman Aug 2000

Economic Considerations Of Damage Assessment, Richard M. Engeman

Human Conflicts with Wildlife: 2002 Symposium

Cost-effectiveness is the fundamental economic test of any damage control or damage mitigation strategy, and damage assessment is the essential component for determination of cost-effectiveness. However, there are many potential costs associated with making damage assessments. The sampling and measurement required to produce a damage assessment have associated effort and costs, but even greater costs can be incurred due to inappropriate management decisions resulting from inaccurate damage assessments. Other costs can result from using an assessment method that is unsuited to management objectives, or by misinterpreting or not understanding the relationship between observed damage and actual losses. The concepts of …

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Spreadsheets, Response Surfaces, And Intervention Decisions In Wildlife Damage Management, Ray T. Sterner Aug 2000

Spreadsheets, Response Surfaces, And Intervention Decisions In Wildlife Damage Management, Ray T. Sterner

Human Conflicts with Wildlife: 2002 Symposium

An a priori approach to examining the economics of performing management activities to reduce agricultural and resource damage by wildlife is described. Computer spreadsheet procedures are used to derive response surfaces of potential net savings and benefit:cost indices for selected crop- or resource-protection activities. Tabular and graphical displays of these indices afford decision-making aids for wildlife-damage interventions. An example based on the use of an acute rodenticide, zinc phosphide (Zn3P2), for vole (Microtus spp.) control in alfalfa (Medicago sativa) is described. Iterative calculations were derived for 1,260 possible combinations of 3 field-size, 6 …

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Impacts Of House Mice On Crops In Australia - Costs And Damage, Peter R. Brown, Grant R. Singleton Aug 2000

Impacts Of House Mice On Crops In Australia - Costs And Damage, Peter R. Brown, Grant R. Singleton

Human Conflicts with Wildlife: 2002 Symposium

Rodents cause serious losses to crops in many different parts of the world. The house mouse (Mus domesticus, Schwarz and Schwarz 1943) is a serious pest to agriculture in Australia. The impacts of house mouse damage to crops in Australia were examined. Plagues of mice (>1,000 mice/ha) cause enormous economic and social stress to rural communities in Australia. The mouse plague in 1993/94 caused about US$60 million in damage to crops, intensive livestock industries, and rural communities. The impact of mouse plagues is generally well understood, but there is a dearth of knowledge about the relationship between …

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Development Of A Model To Assess Rodent Control In Swine Facilities, Kurt C. Vercauteren, Scott E. Hygnstrom, Robert M. Timm, Robert M. Corrigan, John Beller, Larry L. Bitney, Michael C. Brumm, Daniel Meyer, Dallas R. Virchow, Robert W. Wills Aug 2000

Development Of A Model To Assess Rodent Control In Swine Facilities, Kurt C. Vercauteren, Scott E. Hygnstrom, Robert M. Timm, Robert M. Corrigan, John Beller, Larry L. Bitney, Michael C. Brumm, Daniel Meyer, Dallas R. Virchow, Robert W. Wills

Human Conflicts with Wildlife: 2002 Symposium

At the request, and with the support, of the National Pork Producers Council we are conducting a comprehensive economic analysis of rodent control in swine production facilities. The authors represent an interdisciplinary working group that has been assembled to identify all necessary input variables and values associated with rodent damage and control. The working group consists of specialists in swine production, facilities management, agricultural economics, swine health, rodent control, the pest management industry, systems modeling, and distance education. We incorporated data from the scientific literature and personal experience into an interactive STELLA systems model. The model generates benefit-cost analyses and …

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Using Bioeconomic Models To Maximize Benefits From Vertebrate Pest Control: Lamb Predation By Feral Pigs, David Choquenot, Jim Hone Aug 2000

Using Bioeconomic Models To Maximize Benefits From Vertebrate Pest Control: Lamb Predation By Feral Pigs, David Choquenot, Jim Hone

Human Conflicts with Wildlife: 2002 Symposium

The question “When should investment in pest control stop?” either explicitly or implicitly underpins decisions concerning pest control made at every level of enterprise or government, regardless of whether these decisions are tactical or strategic. Bioeconomic modeling provides a quantitative framework for considering the benefits and costs of alternative pest control strategies. In this case study, we develop 3 bioeconomic models that examine strategies based on helicopter shooting and 1080 poisoning, for reducing feral pig (Sus scrofa) predation of newborn lambs in wool-growing enterprises located in Australia’s rangelands. In the first model, marginal analysis indicated that helicopter shooting …

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Economics Of Predation Management In Relation To Agriculture, Wildlife, And Human Health And Safety, Michael J. Bodenchuk, J. Russell Mason, William C. Pitt Aug 2000

Economics Of Predation Management In Relation To Agriculture, Wildlife, And Human Health And Safety, Michael J. Bodenchuk, J. Russell Mason, William C. Pitt

Human Conflicts with Wildlife: 2002 Symposium

Predation management is controversial and much recent debate has focused on the cost of management efforts. This manuscript considers the cost of predators to agriculture, big game or threatened and endangered species management, and human health and safety. Subsequently, the cost of efforts to manage predation in these contexts is discussed, and benefit:cost ratios are calculated. When properly applied, predation management shows benefit:cost ratios of between 3:1 to 27:1 for agriculture and 2:1 to 22:1 for wildlife protection. For human health and safety, benefit:cost ratios are more difficult to calculate, but we argue that benefits outweigh costs in many different …

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An Analysis Of Deer-Vehicle Collisions: The Case Of Ohio, Kurt A. Schwabe, Peter W. Schuhmann, Michael J. Tonkovich, Ellen Wu Aug 2000

An Analysis Of Deer-Vehicle Collisions: The Case Of Ohio, Kurt A. Schwabe, Peter W. Schuhmann, Michael J. Tonkovich, Ellen Wu

Human Conflicts with Wildlife: 2002 Symposium

The costs of deer-vehicle collisions (DVCs) in Ohio are estimated to be in excess of US$52 million annually. The intention of this paper is to identify factors contributing to the abundance of DVCs in Ohio, calculate the average cost of a deer-vehicle collision event, and illustrate the potential gains in economic efficiency from alternative approaches for reducing DVCs. Our results suggest that large potential economic gains from reducing DVCs in Ohio exist and that the optimal strategies for achieving these reductions seem to combine both changes in deer management schemes and deer-vehicle mitigation strategies.

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The Economics Of Managing Belding’S Ground Squirrels In Alfalfa In Northeastern California, Desley A. Whisson, Steve B. Orloff, Donald L. Lancaster Aug 2000

The Economics Of Managing Belding’S Ground Squirrels In Alfalfa In Northeastern California, Desley A. Whisson, Steve B. Orloff, Donald L. Lancaster

Human Conflicts with Wildlife: 2002 Symposium

We used estimates of yield loss from 1995 to 1999 and the reported costs and effectiveness of available control methods to provide a basis for developing a cost-effective management strategy for Belding’s ground squirrels in alfalfa in northern California. Mean annual losses varied between US$110/ha and US$300/ha of alfalfa. Growers usually spend less than US$25/ha on control methods that are implemented haphazardly and provide poor control. We suggest that growers can afford to spend more on control methods such as burrow fumigation or exclusion fencing that previously have been viewed as being too expensive. Control efforts should be focused on …

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