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Articles 16771 - 16800 of 22701
Full-Text Articles in Entire DC Network
Human Rights, Health And The Environment, David Gillespie
Human Rights, Health And The Environment, David Gillespie
Human Rights & Human Welfare
Environmental health and human rights are inextricably linked. According to the Universal Declaration of Human Rights, Article 3, “Everyone has the right to life, liberty, and security of person.” Given that the earth is the source of the basic necessities of human life, any discussion about health and human rights must be attentive to its inherent environmental aspects. International conventions, documents and reports such as Agenda 21 (1992) and The Draft Declaration of Human Rights and the Environment (1994) have expressly argued for such an integrated approach. In response, a plethora of works over the past decade have expanded the …
Investigation Into The Use Of Bait Stations For The Control Of The European Wild Rabbit (Oryctolagus Cuniculus) In The Urban Bushland Reserve Of Bold Park, Perth, Western Australia, Malin Kordes
Theses : Honours
European rabbits in Australia have a significant impact on the environment and the economy. It is therefore necessary to implement control programs. In rural areas a number of methods including warren ripping and poisoning are frequently used. In urban areas though, rabbit control is not as easily accomplished because the use of many control methods is not appropriate. For example, the poison 1080 often cannot be used due to public health concerns and warren ripping cannot be used in conservation areas. Poisoning with pindone, an anticoagulant, is therefore one of few options available to the managers of urban reserves. However, …
The Probe, Issue 231 – January/February 2004
The Probe, Issue 231 – January/February 2004
The Probe: Newsletter of the National Animal Damage Control Association
• There was no November/December 2003 issue of The Probe
• Call for Papers: Second National Rodent Summit
• A new book called Mule Deer Conservation: Issues and Management Strategies has just been published by the Western Association of Fish and Wildlife Agencies and the Jack Berryman Institute.
• Is what we normally think of as "the world's oldest profession" really the oldest profession?
• Human-Wildlife Conflicts in India -- Jason D. Robinson
• Consumption of Non-Human Primates Poses Health Risks
• Position Available: Extension Coordinator--Wildlife Damage Management; School of Natural Resources,University of Nebraska-Lincoln
• Report Available on Whitetail Management …
A Proposal To Meet The Biofuels Directive In Ireland, Karl Mccarthy
A Proposal To Meet The Biofuels Directive In Ireland, Karl Mccarthy
Theses
In 1990 the transport sector accounted for 9,5% of all Irish emissions. By 2010 it is predicted that transport emissions will have increased by 179%, accounting for 18.8% of all emissions. It is predicted that transport emissions will therefore be around 14,000 kt in 2010. This equates to around €370 million pa in carbon taxes if and when the taxation regime is introduced. This €370 million may be used to facilitate a biofuel industry (for example, by reducing excise duty on biofuels).
The proposed carbon tax along with the EU Biofuels Directive aims to encourage the use of renewable transport …
Mutual Benefits Of Teacher/Scientist Partnerships, Marion Dresner, Erin Starvel
Mutual Benefits Of Teacher/Scientist Partnerships, Marion Dresner, Erin Starvel
Environmental Science and Management Faculty Publications and Presentations
University ecologists, science educators and natural resource agency scientists have been working with science teachers in a partnership called "Teachers in the Woods". Teachers work with field scientists to implement a variety of ecological research and monitoring projects on federal agency land. Scientists and teachers were interviewed to obtain insights into the benefits of this partnership. These partnerships generated greater teacher knowledge of local ecological communities and processes and fostered a mutual respect for the work of both classroom teachers and scientists.
Red Imported Fire Ant Impacts On Wildlife: A Decade Of Research, C. R. Allen, D. M. Epperson, A. S. Garmestani
Red Imported Fire Ant Impacts On Wildlife: A Decade Of Research, C. R. Allen, D. M. Epperson, A. S. Garmestani
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
The negative impacts of biological invasion are economically and ecologically significant and, while incompletely quantified, they are clearly substantial. Ants (family Formicidae) are an important, although often overlooked, component of many terrestrial ecosystems. Six species of ants are especially striking in their global ability to invade, and their impacts. This paper focuses on the impacts of the most destructive of those species, the red imported fire ant (Solenopsis invicta), and focuses on impacts on native vertebrates. Red imported fire ants often become the dominant ant species in infested areas outside of their native range due to their aggressive …
Age-Specific Patterns In Density-Dependent Growth Of White Crappie, Pomoxis Annularis, K. L. Pope, G. R. Wilde, B. W. Durham
Age-Specific Patterns In Density-Dependent Growth Of White Crappie, Pomoxis Annularis, K. L. Pope, G. R. Wilde, B. W. Durham
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
The relationship between growth in white crappie, Pomoxis annularis Rafinesque, and climate, lake morphometry and population density was studied in 103 Texas reservoirs. Growth of age-0 through age-3 white crappie was significantly (P≤ 0.05) related to latitude, growing season and surface area. Growth of age-1 through age-5 white crappie also was related to annual precipitation. Multiple linear regression models with precipitation and mean catch per unit effort (CPUE) of white crappie as independent variables explained 14–22% of the variation in growth of age-0, -1 and -2 white crappie. By contrast, growth of age-3, -4 and -5 white crappie was unrelated …
Relationship Between Lake-Record Weights Of Fishes And Reservoir Area And Growing Season, Gene R. Wilde, Kevin L. Pope
Relationship Between Lake-Record Weights Of Fishes And Reservoir Area And Growing Season, Gene R. Wilde, Kevin L. Pope
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
We used information from an angler recognition program to assess the relationship between lake-record weights of freshwater fishes captured by Texas anglers and two predictors of fish production and growth: reservoir surface area and growing-season length. The lake-record weights of two species, largemouth bass Micropterus salmoides and flathead catfish Pylodictis olivaris, were directly related to the logarithm of surface area. The record weights of all species studied were unrelated to growing-season length. Regardless of the statistical significance of individual correlations, there was a significant excess of positive correlations across all species between lake-record weights of fish and log surface area. …
Bank Stabilization, Riparian Land Use And The Distribution Of Large Woody Debris In A Regulated Reach Of The Upper Missouri River, North Dakota, Usa, Ted R. Angrandi, E William Schweiger, David W. Bolgrien, Peter Ismert, Tony Selle
Bank Stabilization, Riparian Land Use And The Distribution Of Large Woody Debris In A Regulated Reach Of The Upper Missouri River, North Dakota, Usa, Ted R. Angrandi, E William Schweiger, David W. Bolgrien, Peter Ismert, Tony Selle
United States Environmental Protection Agency: Publications
Large woody debris (LWD) is an important component of ecosystem structure and function in large floodplain rivers. We examined associations between LWD distribution and riparian land use, bank stabilization (e.g. riprap revetment), local channel geomorphology, and distance downriver from the dam in the Garrison Reach, a regulated reach of the upper Missouri River in North Dakota, USA. We conducted a survey of shoreline-associated LWD in the reach during typical summer flow conditions. Reachwide LWDdensity was 21.3 pieces km^-1 of shoreline, of which most pieces (39%) were ‘beached’ between the waterline and the bank full level, 31% of pieces had evidence …
Water Current, Volume 36, No. 1. Winter 2004
Water Current, Volume 36, No. 1. Winter 2004
Water Current Newsletter
Contents • UNL Water Law, Policy and Science Conference is Mar. 4-5 by Steve Ress • Summer Tour is June 7-9 • From the Director • Bringing a Community Lake Back to Life • UNL Water and Natural Resources Lectures • Fact Sheets Explore Water Transfer and Marketing, Management of Dakota Aquifer • Water Levels Continue Decline in High Plains Aquifer by Steve Ross • Tracking Elk to Determine Best Herd Size for Nebraska’s Pine Ridge by Steve Ress • Water News Briefs • Lower Levels at Lake McConaughy Reveal Shoreline Erosion by Steve Ress and Charles Flowerday
Advection, Krill, And Antarctic Marine Ecosystems, Eileen E. Hofmann, Eugene J. Murphy
Advection, Krill, And Antarctic Marine Ecosystems, Eileen E. Hofmann, Eugene J. Murphy
CCPO Publications
Advective processes are recognized as being important in structuring and maintaining marine ecosystems. In the Southern Ocean advective effects are perhaps most clearly observed because the Antarctic Circumpolar Current (ACC) provides a connection between most parts of the system, including open ocean and continental shelf regions. The ACC also provides a mechanism for large-scale transport of plankton, such as Antarctic krill (Euphousia superba Dana), which is an important component of the Southern Ocean food web. This overview provides a summary of recent observational and modelling results that consider the importance of advection to the Southern Ocean ecosystem and, in particular, …
Prescribed Fire Impacts To Amphibians And Reptiles In Shelterwood-Harvested Oak-Dominated Forests, Patrick D. Keyser, David J. Sausville, W. Mark Ford, Donald J. Schwab, Patrick H. Brose
Prescribed Fire Impacts To Amphibians And Reptiles In Shelterwood-Harvested Oak-Dominated Forests, Patrick D. Keyser, David J. Sausville, W. Mark Ford, Donald J. Schwab, Patrick H. Brose
Virginia Journal of Science
As part of a larger study examining the role of prescribed fire in regenerating upland oaks (Quercus spp.), seasonal prescribed burns (winter, spring, summer, and unburned control) were applied to first-stage shelterwood-harvested stands on Horsepen Wildlife Management Area in the Virginia Piedmont in 1995. Because fire impacts are poorly documented for herpetofaunal communities, we surveyed these stands in 1996 capturing 133 individuals of ten species during over 12,720 pitfall trapnights. We found no significant differences in relative abundance of Eastern Red-backed Salamanders (Plethodon cinereus) (P = 0.26), American Toads (Bufo americanus) (P = 0.93), …
Fifteen Years Of Plant Community Dynamics During A Northwest Ohio Oak Savanna Restoration, Scott R. Abella, John F. Jaeger, Lawrence G. Brewer
Fifteen Years Of Plant Community Dynamics During A Northwest Ohio Oak Savanna Restoration, Scott R. Abella, John F. Jaeger, Lawrence G. Brewer
Public Policy and Leadership Faculty Research
Midwest oak savanna communities are noted for their unusual plant assemblages, but these communities have been reduced by more than 98% because of changing land uses and conversion to closed-canopy forests. We initiated an ongoing 15-year experiment in 1988 to restore a 40-ha black oak (Quercus velutina) savanna by applying burn treatments that historically maintained this vegetation type. Groundlayer composition changed significantly for both the burn treatment and the control, with the burn treatment exhibiting slight increases in herbs such as wild lupine (Lupinus perennis) and hairy puccoon (Lithospermum caroliniense), both of which are species requiring greater insolation. Burn treatments …
Oliver Ranch Science School Complex & Wild Horse And Burro Facility: Quarterly Progress Report, Period Ending September 30, 2004, Margaret N. Rees
Oliver Ranch Science School Complex & Wild Horse And Burro Facility: Quarterly Progress Report, Period Ending September 30, 2004, Margaret N. Rees
Oliver Ranch Project
Assist in project coordination between numerous stakeholders such as the Clark County School System, Desert Research Institute, Community College of Southern Nevada, UNR Cooperative Extension, Nevada State College, local museums, state parks, non-profit organizations, federal agencies, and the public to ensure appropriate educational curricular activities and venues are provided for in the conceptual design of the School and the Wild Horse and Burro facility where appropriate as well as assist in the NEPA process as needed. The activities will be conducted at least in part by university faculty, staff and students as part of the university’s research, teaching, and service …
On The Ecological Status Of The Concept "Boundary Conditions" - A Few Methodological Remarks, Lubomira Burchardt, Krzystof Lastowski, Harold G. Marshall
On The Ecological Status Of The Concept "Boundary Conditions" - A Few Methodological Remarks, Lubomira Burchardt, Krzystof Lastowski, Harold G. Marshall
Biological Sciences Faculty Publications
Plant and animal populations are frequently found in habitats where the environmental conditions are considered extreme or challenging for life form to exist. These conditions may be classified as either: (1) Supreme: a situation characteristic of degradation conditions where only a few species live under stress, and (2) Extra-ordinary: habitats that provide high biodiversity that are under stress conditions. Due to the differences in what we consider extreme conditions, it is necessary to distinguish between these two categories, because they are not comparable. Our presentation will include examples of these two extreme environmental categories.
Environmental Issues In Western Australia, Harry Recher (Ed.)
Environmental Issues In Western Australia, Harry Recher (Ed.)
Research outputs pre 2011
No abstract provided.
Relationships Between Needle Nitrogen Concentration And Photosynthetic Responses Of Douglas-Fir Seedlings To Elevated Co2 And Temperature, James D. Lewis, Melissa S. Lucash, David M. Olszyk, David T. Tingey
Relationships Between Needle Nitrogen Concentration And Photosynthetic Responses Of Douglas-Fir Seedlings To Elevated Co2 And Temperature, James D. Lewis, Melissa S. Lucash, David M. Olszyk, David T. Tingey
Environmental Science and Management Faculty Publications and Presentations
- Here we examined correlations between needle nitrogen concentration ([N]) and photosynthetic responses of Douglas-fir (Pseudotsuga menziesii) seedlings to growth in elevated temperatures and atmospheric carbon dioxide concentrations ([CO2]).
- Seedlings were grown in sunlit, climate-controlled chambers at ambient or ambient+3.5° C and ambient or ambient +180 μmol mol-1 CO2 in a full factorial design. Photosynthetic parameters and needle [N] were measured six times over a 21-month period.
- Needle [N] varied seasonally, and accounted for 30–50% of the variation in photosynthetic parameters. Across measurement periods, elevated temperature increased needle [N] by 26% and light-saturated …
Consequences Of Reservoir Drainage On Downstream Water Chemistry, Suspended Sediment, And Nutrients, Southwest Missouri, Mark W. Bowen
Consequences Of Reservoir Drainage On Downstream Water Chemistry, Suspended Sediment, And Nutrients, Southwest Missouri, Mark W. Bowen
Graduate Theses/Dissertations
Construction and subsequent draining of reservoirs can have dramatic affects on the release of nutrients and sediments to waterways. This study describes how the temporary draining of a small reservoir for dam repair influences downstream water quality. The Valley Mill Reservoir has a surface area of 6.1 hectares and volume of 150,000 m3 when filled. Water chemistry monitoring and water sampling were performed at six sites during baseflow and ten sites during runoff events for one year. Water samples were analyzed for total nitrogen (TN), total phosphorous (TP), and total suspended sediment (TSS) concentrations. Results indicate that draining of Valley …
Assessment And Restoration Of A Neighborhood Wetland Invaded By Exotic Plant Species, Ryan Neal, Kimberly R. Payne, Lorena Moreno, Graham Duffy, Jonathan Peck, Mary C. Savin
Assessment And Restoration Of A Neighborhood Wetland Invaded By Exotic Plant Species, Ryan Neal, Kimberly R. Payne, Lorena Moreno, Graham Duffy, Jonathan Peck, Mary C. Savin
Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences
The University of Arkansas Crop, Soil, and Environmental Sciences (CSES) Club adopted a local wetland in the spring of 2002 through the Fayetteville Parks and Recreation Department. This project has allowed students to interact with local community and governmental organizations as well as other academic departments within the university. Students have gained valuable laboratory and field experience through characterizing hydric soils, identifying bird and plant species, and analyzing water quality, soil nutrients, and microbial biomass. Under the main goal of restoring the wetland, the club has outlined both short and long-term objectives including soil and water assessments; removal of two …
Red, White, Blue, And Green: Politics And The Environment In The 2004 Environment, James R. Lyons, Heather S. Kaplan, Fred Strebeigh, Kathleen E. Campbell
Red, White, Blue, And Green: Politics And The Environment In The 2004 Environment, James R. Lyons, Heather S. Kaplan, Fred Strebeigh, Kathleen E. Campbell
Yale School of the Environment Publications Series
No abstract provided.
An Assessment Of The Coastal Training Program Needs Of The Anerr Region, Claudette Robey, Kevin O'Brien, Kevin O'Brien, Michael Mcgoun, Michael J. Tevesz
An Assessment Of The Coastal Training Program Needs Of The Anerr Region, Claudette Robey, Kevin O'Brien, Kevin O'Brien, Michael Mcgoun, Michael J. Tevesz
All Maxine Goodman Levin School of Urban Affairs Publications
A series of focus groups were conducted throughout northwest Florida to obtain input from coastal decision-makers into the design and development of a coastal resources management training program for the Apalachicola National Estuarine Research Reserve (ANERR). The focus groups were comprised of a cross section of coastal and environmental professionals who make decisions affecting coastal and watershed areas. The focus group decision-makers were primarily employed in the public sector (federal, state, local, governmental, nonprofit, or academic), with nearly half of the participants having between six and 15 years of professional experience.
Coastal Training Strategy For The Ohio Lake Erie Basin, Claudette Robey, Kevin O'Brien, Kirstin S. Toth
Coastal Training Strategy For The Ohio Lake Erie Basin, Claudette Robey, Kevin O'Brien, Kirstin S. Toth
All Maxine Goodman Levin School of Urban Affairs Publications
An analysis of the market for coastal resources management training in Ohio’s Lake Erie basin identified the challenges faced by coastal decision-makers and the disparities currently existing within this market. The primary challenges identified were in the quality of instruction and in the types of training provided. Disparities indicated were with coordination, equipment and logistical factors, external and internal marketing and promotional assistance, funding, personnel and staff assistance, and legislative and regulatory concerns. These disparities are indications of opportunities to establish partnerships and collaborative networks to facilitate coordinated training initiatives; to re-examine and develop course content and locations to better …
The Effects Of Environmentally Relevant Doses Of Perchlorate (Clo4-) On Rana Pipiens Metamorphosis And Development, Andrea N. Golli
The Effects Of Environmentally Relevant Doses Of Perchlorate (Clo4-) On Rana Pipiens Metamorphosis And Development, Andrea N. Golli
UNLV Theses, Dissertations, Professional Papers, and Capstones
The purpose of this study was to assess the effects of environmentally relevant concentrations of perchlorate on the development and growth of Rana pipiens. Ammonium perchlorate is a rocket fuel oxidizer that is known to interfere with the function of the thyroid gland and some of the highest United States surface water concentration exists in the Las Vegas Wash, NV. Perchlorate not only blocks the body’s ability to incorporate iodine into T3 and T4 hormones through the sodium iodine symporter system, but also depletes the thyroid glands’ internal stores of iodine. Many of the steps that regulate metamorphosis in amphibians …
Individual And Landscape-Level Effects Of Selective Herbicides, Mowing, And Prescribed Fire On Habitat Quality For Northern Bobwhite (Colinus Virginianus), Charles Lynn Kitts
Individual And Landscape-Level Effects Of Selective Herbicides, Mowing, And Prescribed Fire On Habitat Quality For Northern Bobwhite (Colinus Virginianus), Charles Lynn Kitts
LSU Master's Theses
Northern bobwhite (Colinus virginianus) populations have been declining throughout their range during the past 30 years primarily because of a result of loss of early successional habitat. Specifically, intensive silviculture practices and reduction in the use of prescribed fire has led to this loss. I studied effects of management practices (selective herbicides, mowing, and prescribed fire) on male and covey distribution, and brood-rearing habitats on Jackson-Bienville Wildlife Management Area (JBWMA). Specifically, I used calling surveys to assess landscape characteristics associated bobwhite distribution. I also measured vegetation and arthropod response, using imprinted bobwhite chicks, pitfalls, and sweep nets, to different habitat …
An Analysis Of Cardiovascular And Respiratory Mortality As A Function Of Ambient Ozone And Fine Particulate Matter In The Baton Rouge Air Quality Control Region, Thomas James Wiley Iv
An Analysis Of Cardiovascular And Respiratory Mortality As A Function Of Ambient Ozone And Fine Particulate Matter In The Baton Rouge Air Quality Control Region, Thomas James Wiley Iv
LSU Master's Theses
The Baton Rouge Air Quality Control Region has come under fire due to difficulties in reaching attainment of one-hour daily ozone limitations and its general perception as being a polluted place to live. Ozone is a reactive oxygen species which has been shown to result in damage to biological molecules and is detrimental to human physiology, especially in regards to cardio-respiratory structure and function. In the last decade, fine particulate matter less than 2.5 microns in mean aerodynamic diameter have been identified as a possible pollutant that is affecting public health at levels lower than the EPA’s established limits. PM2.5 …
Regional-Scale Eutrophication Models: A Bayesian Treed Model Approach, Angelina Freeman
Regional-Scale Eutrophication Models: A Bayesian Treed Model Approach, Angelina Freeman
LSU Master's Theses
Utilizing Bayesian hierarchical techniques, regional-scale eutrophication models were developed for use in the Total Maximum Daily Load (TMDL) process. The Bayesian tree-based (BTREED) approach allows association of multiple environmental stressors with biological responses, and quantification of uncertainty sources in the water quality model. Simple parametric models are often inadequate for describing complex datasets; the BTREED approach partitions the dataset, and describes the localized subsets of data with linear models, thereby providing a comprehensive representation of stressor and response interactions. Nutrient criteria data for lakes, ponds and reservoirs across the United States were obtained from the Environmental Protection Agency (U.S. EPA) …
Plant Surrogacy: An Evaluation Of Its Use And Application In The Effort To Conserve Ground Dwelling Invertebrates, Kerry Leigh Ironside
Plant Surrogacy: An Evaluation Of Its Use And Application In The Effort To Conserve Ground Dwelling Invertebrates, Kerry Leigh Ironside
Theses : Honours
A study conducted in the Ridges State Forest, Yanchep was designed to investigate the relationship between plant species richness, vegetation association and ground dwelling invertebrate species richness. Four plant communities were sampled at two scales of measurement. Two treatments were located in woodland and two in heath. Within each vegetation association, plant communities that were representative of both high and low species richness were selected. Three invertebrate orders, Araneae, Coleoptera and Araneae were sorted to morphospecies level. Ordinal richness was also investigated. Two-way ANOVAs indicated that there was no relationship between plant species richness, vegetation association· or the interaction between …
Temperature Effects On Spawning And Fingerling Production Of Channel Catfish Ictalurus Punctatus, Patrice Arnold Pawiroredjo
Temperature Effects On Spawning And Fingerling Production Of Channel Catfish Ictalurus Punctatus, Patrice Arnold Pawiroredjo
LSU Master's Theses
The goal of this study was to develop several techniques that utilize the use of geothermal water that can contribute to increased profitability for commercial catfish producers. The primary objectives of this study were to: 1) determine the heating requirement using degree-days of channel catfish spawning 2) improve the efficiency of artificial spawning and, 3) evaluate the effectiveness of stocking outdoor ponds and pools with channel catfish fry. The heating requirement for channel catfish spawning was determined to be between 99 and 129 degree days at the peak of spawning. There was no difference in degree-day values between spawns collected …
Modeling Longleaf Pine (Pinus Palustris Mill) Wood Properties Using Near Infrared Spectroscopy, Brian Kipling Via
Modeling Longleaf Pine (Pinus Palustris Mill) Wood Properties Using Near Infrared Spectroscopy, Brian Kipling Via
LSU Doctoral Dissertations
This research demonstrated model development for important wood properties using near infrared spectroscopy (NIR); it considered the effect of outside sources of error, and the ability of NIR to measure fiber morphology. Strength, stiffness, and density were successfully modeled from wood samples taken throughout 10 longleaf (Pinus palustris Mill) trees. Principal components and multiple linear regression were compared for performance in prediction of density, strength, and stiffness. I found both modeling techniques to yield similar prediction accuracies. However, I found that density could be estimated through Beer-Lambert’s law since the absorbance at all wavelengths increased with density. Also, 5 of …
Estimating The Population Of Greater And Lesser Scaup During Winter In Off-Shore Louisiana, Sean David Kinney
Estimating The Population Of Greater And Lesser Scaup During Winter In Off-Shore Louisiana, Sean David Kinney
LSU Master's Theses
I analyzed data from an experimental aerial transect survey, using stratified random sampling, to estimate wintering populations of greater scaup (Aythya marila) and lesser scaup (Aythya affinis) (hereafter scaup) in off-shore waters along the coast of Louisiana during winters 2000-2002. My objectives were to evaluate anecdotal reports of large numbers of scaup in off-shore waters of Louisiana during winter, and to develop estimates and confidence intervals for numbers of scaup in this area. My analysis yielded estimates of 815,700, 420,600, and 791,000 scaup in off-shore Louisiana for years 2000-2002, respectively. Confidence intervals were 1,087,000 to 545,000, 594,300 to 247,000, and …