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

2010

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 1 - 30 of 126

Full-Text Articles in Environmental Indicators and Impact Assessment

Revegetating Burned Arid Lands: Identifying Successful Native Species Using Trait And Competition Analysis: Final Report, Scott R. Abella Dec 2010

Revegetating Burned Arid Lands: Identifying Successful Native Species Using Trait And Competition Analysis: Final Report, Scott R. Abella

Fire Science

Species selection can make the difference between successful revegetation projects and costly failures. Candidate native species for revegetating burned arid lands in the southwestern United States must meet at least two criteria. These species must: (1) be competitive in postfire environments typically dominated by exotic grasses, and (2) be able to become established reliably by seeding or planting. In response to Manager’s Request Task 3 (reestablishment of native vegetation after fires on arid lands) in the 2006 JFS announcement for proposals, this research tackled the problem of selecting native species with the greatest chance of revegetation success by conducting synergistic …


Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending December 31, 2010, Margaret N. Rees Dec 2010

Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending December 31, 2010, Margaret N. Rees

Wildlife Monitoring

Project 1. Relict Leopard Frog Monitoring, Management, and Research

  • Final milestones and deliverables for this project were completed this quarter.
  • Fall monitoring surveys were completed at all sites.
  • Habitat actions to improve breeding pools were conducted at one site.
  • Data and associated metadata were compiled and quality assured.
  • Final and annual reports were written and submitted in required formats for Clark County

and the Relict Leopard Frog Conservation Team.

Project 2. Bald Eagle Winter Monitoring and Evaluation

  • This project was previously completed and all associated deliverables met.
  • Efforts were provided this quarter in support of the 2011 winter count.

Project …


Invasive Species And Climate Change, Invasive Species Advisory Committee Dec 2010

Invasive Species And Climate Change, Invasive Species Advisory Committee

National Invasive Species Council

ISSUE

Climate change interacts with and can often amplify the negative impacts of invasive species. These interactions are not fully appreciated or understood. They can result in threats to critical ecosystem functions on which our food system and other essential provisions and services depend as well as increase threats to human health. The Invasive Species Advisory Committee to the National Invasive Species Council recognizes the Administration’s commitment to dealing proactively with global climate change. However, unless we recognize and act on the impact of climate change and its interaction with ecosystems and invasive species, we will fall further behind in …


When Curiosity Kills More Than The Cat: The Perils Of Unchecked Scientific Inquiry, Jamie Shannon Dec 2010

When Curiosity Kills More Than The Cat: The Perils Of Unchecked Scientific Inquiry, Jamie Shannon

Pomona Senior Theses

This work analyzes the ecological, physical, emotional and health impacts of the US nuclear testing done in the Marshall Islands in the mid-20th century.


Ecological Impacts Of Stream Bank Stabilization In A Great Plains River, Christopher M. Pracheil Dec 2010

Ecological Impacts Of Stream Bank Stabilization In A Great Plains River, Christopher M. Pracheil

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

Reduced ecological complexity, decreased water quality, and accelerated stream bank erosion are common disturbances in rivers with agriculturally dominated watersheds. Massive bank failures, increased sediment loads, and decreased riverine habitat are current problems in the agriculturally dominated Cedar River of central Nebraska. In an effort to slow erosion and prevent further ecological degradation, 20 reach scale stream bank stabilization projects were installed on the Cedar River from 2001 to 2004. The objective of this study was to determine the impact of the Cedar River stream bank stabilization projects on the ecological conditions within the Cedar River. Stream bank erosion, suspended …


The Hydrology Of The Carroll Cave-Toronto Springs System: Identifying And Examining Source Mixing Through Dye Tracing, Geochemical Monitoring, Seepage Runs, And Statistical Methods, Benjamin Verlinden Miller Dec 2010

The Hydrology Of The Carroll Cave-Toronto Springs System: Identifying And Examining Source Mixing Through Dye Tracing, Geochemical Monitoring, Seepage Runs, And Statistical Methods, Benjamin Verlinden Miller

Masters Theses & Specialist Projects

In karst areas relationships between activities occurring on the surface and the overall health of the subsurface environment are often highly interconnected. However, the complex nature of karst flow systems can often make identification of these connections difficult. Carroll Cave, a large stream cave system located in the central Missouri Ozarks, is known for its biological and speleological significance. A dye tracing project to delineate a Carroll Cave recharge area through dye tracing has identified an area of 18.5 km2 which contributes water to the cave. The water from Thunder River within Carroll Cave was positively traced to eight springs …


Recent Legislation To Promote Wind Energy In Nebraska, Ryan Lemke Dec 2010

Recent Legislation To Promote Wind Energy In Nebraska, Ryan Lemke

Department of Environmental Studies: Undergraduate Student Theses

Nebraska is currently ranked 4th in the nation for wind energy potential, but ranks low in actual wind power production. The lack of wind energy production could be the result of Nebraska’s unique public power districts that have eminent domain of distribution and retail sales of electricity in the State. Public Power districts are prohibited from receiving benefits of state and federal tax incentives for the development of wind farms, however some Nebraska power districts still pursue wind energy as a renewable source of energy.

Recent legislation changes, including the passing of laws LB629 and LB1048, have provided the State …


Heavy Metal Concentrations In Water And Surface Sediments Of Wilgreen Lake, Madison County, Kentucky, Chad Von Gruenigen, Walter S. Borowski Dec 2010

Heavy Metal Concentrations In Water And Surface Sediments Of Wilgreen Lake, Madison County, Kentucky, Chad Von Gruenigen, Walter S. Borowski

EKU Faculty and Staff Scholarship

Heavy metal pollution remains problematic in natural waters, particularly for localities near plausible anthropogenic sources. We assayed the level of heavy metals in surface waters and within surface sediments of Wilgreen Lake, whose watershed drains industrial, urban, agricultural, and residential areas near Richmond, Kentucky. Water samples were treated according to Environmental Protection Agency (EPA) protocols and digested with trace-metal-grade nitric and hydrochloric acids. Sediment samples were collected with a grab sampler and digested using established EPA procedures with hydrogen peroxide and trace-metal-grade nitric acid. Both water samples and sediment samples were sent to Activation Laboratories for analysis, and were measured …


Digital And Printed Magazines’ Effects On The Environment, Jeannie Nguyen Dec 2010

Digital And Printed Magazines’ Effects On The Environment, Jeannie Nguyen

Graphic Communication

The purpose of this study was to show how printed magazines affect the environment with their use of paper and how digital magazines affect their environment with their electricity use from servers hosting the digital magazines. It is also to find how the printed magazine industry is reducing their paper use and how digital magazines are reducing the amount of electricity used by servers hosting the digital magazines.

Results show that printed magazines use a massive amount of paper to produce millions of magazines and that the process of getting paper produces a large amount of carbon dioxide which is …


Policy And Science Of Geothermal Heat Use At Mcmurdo Station, Antarctica, Joe Alvine Dec 2010

Policy And Science Of Geothermal Heat Use At Mcmurdo Station, Antarctica, Joe Alvine

Department of Environmental Studies: Undergraduate Student Theses

My thesis research project deals with the use of geothermal heat in Antarctica. Currently it is not allowed due to article 7 of the 1991 Protocol on Environmental Protection that placed a 50 moratorium on the exploitation of mineral resources. The US main base in Antarctica, McMurdo Station is currently powered by diesel generators that are inefficient, cause environmental damage, and is expensive to run. By exploring alternative energy options, McMurdo Station can reduce its dependence on non-renewable energy sources. By determining the geothermal potential of McMurdo Station, this project explores the possibilities and benefits that would occur with the …


Algorithms For Remote Estimation Of Chlorophyll-[Alpha] In Coastal And Inland Waters Using Red And Near Infrared Bands, Alexander A. Gilerson, Anatoly Gitelson, Jing Zhou, Daniela Gurlin, Wesley Moses, Ioannis Ioannou, Samir A. Ahmed Nov 2010

Algorithms For Remote Estimation Of Chlorophyll-[Alpha] In Coastal And Inland Waters Using Red And Near Infrared Bands, Alexander A. Gilerson, Anatoly Gitelson, Jing Zhou, Daniela Gurlin, Wesley Moses, Ioannis Ioannou, Samir A. Ahmed

Center for Advanced Land Management Information Technologies: Publications

Remote sensing algorithms that use red and NIR bands for the estimation of chlorophyll-a concentration [Chl] can be more effective in inland and coastal waters than algorithms that use blue and green bands. We tested such two-band and three-band red-NIR algorithms using comprehensive synthetic data sets of reflectance spectra and inherent optical properties related to various water parameters and a very consistent in situ data set from several lakes in Nebraska, USA. The two-band algorithms tested with MERIS bands were Rrs(708)/Rrs(665) and Rrs(753)/Rrs(665). The three-band algorithm with MERIS bands was in the …


Culvert Material Cost Comparison, New England Environmental Finance Center Nov 2010

Culvert Material Cost Comparison, New England Environmental Finance Center

Water

The following tables provide a detailed look at the role that culvert material and culvert diameter play in the overall cost of a culvert replacement project.


Culvert Material Cost Comparison, New England Environmental Finance Center Nov 2010

Culvert Material Cost Comparison, New England Environmental Finance Center

Economics and Finance

The following tables provide a detailed look at the role that culvert material and culvert diameter play in the overall cost of a culvert replacement project. Table 1 displays the cost per foot purchase price arranged by diameter size for the various culvert materials that are currently available. Table 2 displays the average additional culvert pipe material cost (increased cost to upsize minus original in-kind replacement cost) that would be incurred when upsizing a given diameter of culvert with a 50 foot length by factors of: 200%, 250% and 300%.


Current Status And Long-Term Trends In Water Quality And Living Resources In The Virginia Tributaries And Chesapeake Bay Mainstem From 1985 Through 2009, Daniel M. Dauer, Harold G. Marshall, John R. Donat, Michael F. Lane, Suzanne C. Doughten, Frederick A. Hoffman, Raghavendra Kurada Nov 2010

Current Status And Long-Term Trends In Water Quality And Living Resources In The Virginia Tributaries And Chesapeake Bay Mainstem From 1985 Through 2009, Daniel M. Dauer, Harold G. Marshall, John R. Donat, Michael F. Lane, Suzanne C. Doughten, Frederick A. Hoffman, Raghavendra Kurada

Status and Trends for Virginia Chesapeake Bay

The period prior to the implementation of the Chesapeake Bay Monitoring Program was characterized by a marked decline in the water quality of the Chesapeake Bay. The disappearance of submerged aquatic vegetation in certain regions of the Bay, declines in the abundance of some commercially and recreationally important species, increases in the incidence of low dissolved oxygen events, changes in the Bay's food web, and other ecological problems have been related to the deteriorating water quality (e.g. USEPA, 1982,1983;Officer et al.,1984; Orth and Moore, 1984). The results of concentrated research efforts in the late 1970s and early 1980s stimulated the …


Report To The Commissioner Of Soil Conservation On The Condition Of The Pastoral Resource Base 2010, Department Of Agriculture And Food, Western Australia Nov 2010

Report To The Commissioner Of Soil Conservation On The Condition Of The Pastoral Resource Base 2010, Department Of Agriculture And Food, Western Australia

Natural resources published reports

Western Australia’s rangelands cover 87% of the state and include all but the south west. Pastoral leases, used for grazing of livestock on native vegetation, cover 35% (874,000 km2) of the rangelands, with Unallocated Crown Lands (UCL) and lands vested for conservation and Indigenous purposes making up the balance. There are currently 459 registered pastoral stations (made up of 510 pastoral leases) in Western Australia; there are 159 stations in the Northern Rangelands (Kimberley and Pilbara), 291 stations in the Southern Rangelands, and nine stations in the South West Land Division.


Heavy Metal Concentrations In Water And Surface Sediments Of Wilgreen Lake, Madison County, Kentucky, Chad Von Gruenigen, Walter S. Borowski Nov 2010

Heavy Metal Concentrations In Water And Surface Sediments Of Wilgreen Lake, Madison County, Kentucky, Chad Von Gruenigen, Walter S. Borowski

EKU Faculty and Staff Scholarship

Heavy metal pollution remains a problem in natural waters, particularly for localities near plausible anthropogenic sources. We assayed the level of heavy metals in surface waters and within surface sediments of Wilgreen Lake, whose watershed drains industrial, urban, and residential areas near Richmond, Kentucky.

Water samples were treated according to Environmental Protection Agency (EPA) protocols and digested with trace-metal-grade nitric and hydrochloric acids. Sediment samples were collected with a grab sampler and digested using established EPA procedures with hydrogen peroxide and trace-metal-grade nitric acid. Both water samples and sediment samples were sent to Activation Laboratories for analysis, and were measured …


Patterns Of Heavy Metal Concentration In Core Sediments, Wilgreen Lake, Madison County, Kentucky, Clint Mcmaine, Walter S. Borowski Nov 2010

Patterns Of Heavy Metal Concentration In Core Sediments, Wilgreen Lake, Madison County, Kentucky, Clint Mcmaine, Walter S. Borowski

EKU Faculty and Staff Scholarship

Elevated levels of cadmium, copper, lead, and nickel were found within the waters of Wilgreen Lake during a preliminary survey in 2007. Accumulation of heavy metals in freshwater systems is a known problem. Heavy metals enter the lake in the dissolved phase or adsorbed onto sediment particles and may be linked to industries within the lake’s watershed. Under certain geochemical conditions such as anoxia, heavy metals may detach from sediment particles and diffuse into overlying lake waters, causing a renewed influx of heavy metals into the ecosystem. We hypothesize that heavy metals should decrease in concentration upcore as a result …


The Emberá And Their Resources: Vulnerability Of Natural Resources To Climate Change, Nancy Lee Pospelov, Claire Herdy Oct 2010

The Emberá And Their Resources: Vulnerability Of Natural Resources To Climate Change, Nancy Lee Pospelov, Claire Herdy

Von Braun Symposium Student Posters

No abstract provided.


“Mieux Vaut Prévenir Que Guérir”: The Effect Of Natural Disasters On Water- And Sanitation-Related Infectious Diseases And The Increasing Need For Disaster Preparedness, Naomi Malam Oct 2010

“Mieux Vaut Prévenir Que Guérir”: The Effect Of Natural Disasters On Water- And Sanitation-Related Infectious Diseases And The Increasing Need For Disaster Preparedness, Naomi Malam

Independent Study Project (ISP) Collection

The world is suffering from an extreme global water crisis. 1.1 billion people in the world lack access to adequate clean water, and 2.6 billion people lack access to water and sanitation. Approximately 10 million deaths per year can be attributed to this water crisis; water-borne infectious diseases play a significant role in this death toll. Diarrhoeal disease accounts for 2.6 million deaths per year and is one of the leading causes of death in many developing countries.

We are entering a period of undeniable climate change which is bringing about more natural disasters and extreme weather events than ever …


La Cara De La Explotación: Un Estudio De La Industria Minería En El Sur De La República De Ecuador, Jillian Howell Oct 2010

La Cara De La Explotación: Un Estudio De La Industria Minería En El Sur De La República De Ecuador, Jillian Howell

Independent Study Project (ISP) Collection

Mi viaje continúo al sur oriente a la ciudad de Macas en la provincia de Morona Santiago, a dónde había una reunión del Programa de Pequeños Donaciones (PPD) de las Naciones Unidas - Proyecto de Desarrollo (UNDP) sobre los pequeños proyectos sostenibles en el sur de Ecuador. Unos de estos proyectos era sobre mitigando de los impactos ambientales de los mineros artesanales de La Pangui y Congüime en el Cordillera del Cóndor. Yo visité este proyecto una semana después, cuando fui a La Pangui y viví una noche con la familia del presidente de una asociación de los mineros artesanales. …


Droughtscape, Fall 2010, Kelly Smith Oct 2010

Droughtscape, Fall 2010, Kelly Smith

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

CDC Issues Drought Guidance for Public Health

La Niña May Intensify Drought in South

Recent Workshops and Meetings

East Feels Impacts as Heat Intensifies Drought

New Products

Nicole Wall Co-Facilitates Republican River Basin Task Force

NDMC Climatologist on Ethiopia Team


Effects Of Urbanization On Environmental Parameters In Aquatic Systems Along An Urban-Rural Gradient In Northeastern Illinois, Tiffany Garrett Oct 2010

Effects Of Urbanization On Environmental Parameters In Aquatic Systems Along An Urban-Rural Gradient In Northeastern Illinois, Tiffany Garrett

All Capstone Projects

The transformation of landscapes from rural to urban land use impacts affected ecosystems. Replacing natural vegetation with impervious surfaces and introducing environmental stressors through increased human activity can significantly alter aquatic ecosystems. This study examined the effects that urbanization had on salinity, dissolved oxygen, temperature, conductivity, and pH of aquatic systems along an urban-rural gradient in Illinois, Chicago land area- Little Calumet River, Thorn Creek, and Kankakee River. The first objective of this project was to examine whether there were changes or fluctuations among various environmental parameters that may be due to heavily populated residential areas when compared to a …


Importance Of Wildlife Disease Surveillance, Jerrold L. Belant, Amanda R. Deese Oct 2010

Importance Of Wildlife Disease Surveillance, Jerrold L. Belant, Amanda R. Deese

Human–Wildlife Interactions

A commentary on the importance of wildlife disease surveillance.


Trace Metal Concentrations Across Trophic Levels In Cotton Fields Of Xinjiang Province, China, Jessica Quinn Oct 2010

Trace Metal Concentrations Across Trophic Levels In Cotton Fields Of Xinjiang Province, China, Jessica Quinn

All Student Theses and Dissertations

Trace metals become concentrated in urban and peri-urban soils with the use of agricultural practices and industrial emissions. Fertilizers, liming, sewage sludge, and irrigation water contain metals which accumulate in agricultural fields and pose a risk to humans and wildlife. Coal plants and brickyards release metals into the atmosphere which are deposited on soil and plant surfaces. This research quantifies the concentrations of nine trace metals in three different soil types. A total of 116 rodents were sampled in cotton fields and a desert. Cotton plants and triplicate soil samples were collected with each rodent capture. Soil samples were analyzed …


Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quartlerly Progress Report, Period Ending September 30, 2010, Margaret N. Rees Sep 2010

Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quartlerly Progress Report, Period Ending September 30, 2010, Margaret N. Rees

Wildlife Monitoring

Project 1. Relict Leopard Frog Monitoring, Management, and Research

  • All milestones and deliverables are on schedule
  • Reconnaissance conducted at sites in the Gold Butte during coordinated efforts with USGS
  • Annual Project Review Presentation provided to Clark County
  • Spring-season mark-recapture at Blue Point Spring completed this quarter
  • Fall-season mark-recapture effort initiated

Project 2. Bald Eagle Winter Monitoring and Evaluation

  • This project has been completed and all associated deliverables have been met

Project 3. Peregrine Falcon Monitoring and Evaluation

  • This project has been completed and all final report deliverables have been met
  • Presentations were given at the Raptor Research Foundation Annual Conference …


Eelgrass Distribution In The Great Bay Estuary For 2009 : Final Report, Frederick T. Short Sep 2010

Eelgrass Distribution In The Great Bay Estuary For 2009 : Final Report, Frederick T. Short

PREP Reports & Publications

Eelgrass in the Great Bay Estuary in 2009 was once again present only in Great Bay itself and in Portsmouth Harbor. For the second year in a row, there was no eelgrass in Little Bay or in the Piscataqua River. In 2009, there was a continued loss of eelgrass biomass in Great Bay; there has been a 66.4% loss of biomass in Great Bay since 1996 and distribution is 30% less than in 1996. Although eelgrass distribution in Great Bay itself increased between 2008 and 2009, primarily due to continued expansion from natural seeding of bare areas, the Bay’s eelgrass …


Results Of The Gulfwatch 2010 Samples : Memorandum, Matthew A. Wood Sep 2010

Results Of The Gulfwatch 2010 Samples : Memorandum, Matthew A. Wood

PREP Reports & Publications

The purpose of this memorandum is to document the sample collection activities for Gulfwatch 2010. .


Geochemical Analysis Of Surface And Ground Waters Around Cle Elum, Wa; Implications For The Proposed Exempt Well Moratorium, David Hickey, Ryan Opitz, Carey A. Gazis Sep 2010

Geochemical Analysis Of Surface And Ground Waters Around Cle Elum, Wa; Implications For The Proposed Exempt Well Moratorium, David Hickey, Ryan Opitz, Carey A. Gazis

Student Published Works

The Yakima River drainage is one of the most heavily irrigated regions in the state, and water use has been much contested and litigated. Due to this water demand and the increase in drilling of domestic wells, a moratorium on exempt well drilling was proposed in 2007. In this study geochemical data is used to evaluate the surface-groundwater interaction in the area around Cle Elum, WA. The hydrogeology of this area is poorly understood due to the complex stratigraphy where the valley floor meets the bedrock of the Cascade Range. It is important to understand the relationship between groundwater and …


Construction Cost Models, Barry Dikeman Aug 2010

Construction Cost Models, Barry Dikeman

Economics and Finance

The following are a series of cost estimate models similar in format to a typical engineer’s estimate that were developed in support of our financial impact assessment report for LD 1725. The models us current material costs, labor costs, and equipment costs for the region to provide a comparative cost analysis of seven culvert replacement scenarios. The models provide information about what the cost impact of LD 1725 would be for typical culvert replacements in Maine. However, due to the inherent restrictions of the cost modeling framework we were not able to include the abundance of variables that would be …


Large Mining Projects In The Amazon, Gustavo Negreiros Phd, Academic Director Aug 2010

Large Mining Projects In The Amazon, Gustavo Negreiros Phd, Academic Director

Fostering Multicultural Competence and Global Justice: an SIT Symposium

In addition to my work coordinating the SIT study abroad program Amazon Resource Management and Human Ecology since 1998, I pursue personal interests in the relation of modern development projects and the social environmental conditions faced by local populations of the region. In 2005, I evaluated the environmental licensing and implementation of Alcoa´s (Aluminum Company of America) mine operation in Juruti, western Pará State, which started operation in 2009. I was invited by the communities impacted and the different actors involved to participate in the team in charge of developing methodologies to valuate the social-environmental externalities faced by the communities, …