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Articles 91 - 120 of 297
Full-Text Articles in Natural Resources and Conservation
Source And Magnitude Of Error In An Inexpensive Image-Based Water Level Measurement System, Troy E. Gilmore, François Birgand, Kenneth W. Chapman
Source And Magnitude Of Error In An Inexpensive Image-Based Water Level Measurement System, Troy E. Gilmore, François Birgand, Kenneth W. Chapman
School of Natural Resources: Faculty Publications
Recent technological advances have opened the possibility to use webcams and images as part of the environmental monitoring arsenal. The potential sources and magnitude of uncertainties inherent to an image-based water level measurement system are evaluated in an experimental design in the laboratory. Sources of error investigated include image resolution, lighting effects, perspective, lens distortion and water meniscus. Image resolution and meniscus were found to weigh the most in the overall uncertainty of this system. Image distortion, although largely taken into account by the software developed, may also significantly add to uncertainty. Results suggest that ‘‘flat’’ images with little distortion …
The Role Of The Ocean Industry In The Chinese National Economy: An Input-Output Analysis, Rui Zhao
The Role Of The Ocean Industry In The Chinese National Economy: An Input-Output Analysis, Rui Zhao
Working Papers
The OEAS (Ocean Economy Accounting System) has been established in China for 6 years. However, the economic impact of the ocean economy in China’s national economy has not yet been understood clearly at the national or regional levels. The direct impact of ocean industries in China at national and regional levels has been compiled for the period of 2001-2011, but it is still unclear what the overall economic impacts of ocean industries are in the national economy, and how the ocean industries interact with other industries in the national economy. China is similar to other ocean countries in that, - …
Jefferson Currents: Summer/Fall 2007
Jefferson Currents: Summer/Fall 2007
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, steam power and chilled water on campus, 6 degrees of efficiency challenge, and other conservation news. 2 pages.
Jefferson Currents: Winter 2005/6
Jefferson Currents: Winter 2005/6
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, Jefferson signs agreements for a new central chilled water plant and steam purchase pricing, and other conservation news. 2 pages.
Jefferson Currents: Winter 2005
Jefferson Currents: Winter 2005
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, energy myths debunked, savings at work, and other conservation news. 2 pages.
Jefferson Currents: Winter 2003
Jefferson Currents: Winter 2003
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, campus heating costs soar, energy upgrades at TJUH buildings, and other conservation news. 2 pages.
Jefferson Currents: Summer 2005
Jefferson Currents: Summer 2005
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, electricity bills rising, information on buying air conditioners, and other conservation news. 2 pages.
Jefferson Currents: Summer 2004
Jefferson Currents: Summer 2004
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, energy costs slashed, energy myths debunked, and other conservation news. 2 pages.
Jefferson Currents: Summer 2003
Jefferson Currents: Summer 2003
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, Jefferson receives two energy awards, Jefferson's water meter costs cut, and other conservation news. 2 pages.
Jefferson Currents: Spring 2013
Jefferson Currents: Spring 2013
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, insulation for saving on heating and cooling cost, Earth Day news, and other conservation news. 2 pages.
Jefferson Currents: Spring 2011
Jefferson Currents: Spring 2011
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, healthy Jeff water Wednesday, investment in energy efficiency yields big savings on campus, and other conservation news. 2 pages.
Jefferson Currents: Spring 2006
Jefferson Currents: Spring 2006
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, electric rates going up, energy myths debunked, and other conservation news. 2 pages.
Jefferson Currents: Spring 2005
Jefferson Currents: Spring 2005
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, energy use on campus, energy myths debunked, and other conservation news. 2 pages.
Jefferson Currents: Spring 2004
Jefferson Currents: Spring 2004
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, free hot water, energy myths debunked, and other conservation news. 2 pages.
Jefferson Currents: Fall 2012
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, on the home front, EnergySense from PGW, and other conservation news. 2 pages.
Jefferson Currents: Fall 2011
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, six ways to cut winter energy use, load shedding initiative saves money, work completed on large energy projects, and more conservation news. 2 pages.
Jefferson Currents: Fall 2009
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, saving money and healing the environment, trash to cash, and other conservation news. 2 pages.
Jefferson Currents: Fall 2004
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, oil prices, energy myths debunked, and other conservation news. 2 pages.
Jefferson Currents: Fall 2003
Jefferson Currents: The Energy Conservation Newsletter
Dr. Watts' Brilliant Savings, Campus Electricity Use Slashed, Christmas shopping tips, and other news. 2 pages.
Fluctuating Viability Selection On Morphology Of Cliff Swallows Is Driven By Climate, Charles R. Brown, Mary Bomberger Brown, Erin A. Roche
Fluctuating Viability Selection On Morphology Of Cliff Swallows Is Driven By Climate, Charles R. Brown, Mary Bomberger Brown, Erin A. Roche
School of Natural Resources: Faculty Publications
The extent to which fluctuating selection can maintain evolutionary stasis in most populations remains an unresolved question in evolutionary biology. Climate has been hypothesized to drive reversals in the direction of selection among different time periods and may also be responsible for intense episodic selection caused by rare weather events. We measured viability selection associated with morphological traits in cliff swallows (Petrochelidon pyrrhonota) in western Nebraska, USA, over a 14-year period following a rare climatic event. We used mark-recapture to estimate the annual apparent survival of over 26 000 individuals whose wing, tail, tarsus, and bill had been …
Advocacy For Marine Management: Contributions To A Policy Advocacy Initiative In The Maldives, Neal Collins
Advocacy For Marine Management: Contributions To A Policy Advocacy Initiative In The Maldives, Neal Collins
Capstone Collection
On June 5, 2009 a 42-‐km2 area of coral reef situated in the Alif Dhaalu (South Ari) atoll of the Republic of Maldives was designated the South Ari Atoll Marine Protected Area (S.A. MPA) due to a globally significant whale shark aggregation site. The whale shark is notorious for its gargantuan size and docile nature, which has led to a burgeoning tourist industry that gives people the opportunity to swim with the gentle giants in tropical sites such as the Maldives. The S.A. MPA receives tens of thousands of visitors a year that engage in whale shark excursions, however, there …
Conserving Fish And Forests: Community Involvement And Its Limits In Resource Management On The Island Of Hawai'i, Amber W. Datta
Conserving Fish And Forests: Community Involvement And Its Limits In Resource Management On The Island Of Hawai'i, Amber W. Datta
Pomona Senior Theses
In this thesis I examine the limits of community involvement in accomplishing the conservation goals of biodiversity and ecosystem function in resource management by analyzing the multiple interest groups that compose community. Two case studies are presented to accomplish this goal. The first case study is the West Hawaii Fisheries Management Area, where a group of community stakeholders provide management recommendations that are then implemented by the state. The second case study is the Ka’u forest reserve, where community involvement is invited into the management decision-making process but is also limited in its ultimate political power by the state. Through …
The Role Of The Creative Economy In Sustainability Planning And Development, Marla Stelk
The Role Of The Creative Economy In Sustainability Planning And Development, Marla Stelk
Muskie School Capstones and Dissertations
This paper reviews Creative Economy theory and practice and attempts to intersect the author’s findings with Sustainability Planning and Development theory and practice. An extensive literature review, including over 40 publications (articles, reports, white papers, conference proceedings and books) as well as interviews, personal observations and website reviews was used to develop this paper and the author’s conclusions. Current Creative Economy and Sustainability theories are explained and analyzed as well as the role of the artist, the entrepreneur, the city and cultural organizations. The author provides recommendations for the City of Portland, Maine and concludes that the qualitative benefits of …
Soil Organic Carbon Dynamics In Agriculture: Model Development And Application From Daily To Decadal Timescales, Matthew P. Pelton
Soil Organic Carbon Dynamics In Agriculture: Model Development And Application From Daily To Decadal Timescales, Matthew P. Pelton
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
Soil carbon (C) is the largest terrestrial C pool globally, containing more C than the atmosphere and biosphere. Soil organic carbon (SOC) is a source and sink of CO2 emissions to and from the atmosphere, thus influencing future climate change. Understanding SOC dynamics is also important for maintaining C stocks to sustain and improve crop yields. An existing model to estimate changes in SOC due to respiration was modified to operate in three computational platforms: MS Excel, MS Excel with Visual Basic for Applications, and supercomputing. This model was validated against CO2 flux data from a 9-year field …
The Consciousness Of Water: Narrative Flows, Environmental Change, And The Voice Of Yemen, Tricia Nellessen
The Consciousness Of Water: Narrative Flows, Environmental Change, And The Voice Of Yemen, Tricia Nellessen
Graduate Theses and Dissertations
Icebergs are melting in the Arctic. The Gulf of Mexico is warming and producing hurricanes such as Katrina. The delta of the southern United States is drying. And, Yemen will be the first country in modern history to experience a lack of accessible ground water, as soon as 2017 possibly. Yemen's situation has been tracked by scholars and governments since the 1960s. Despite this fact, cities have expanded in Yemen and the population has increased its use of water while little has been invested in desalination or infrastructure to offset growth. Climate change has affected humans for thousands of years; …
Wildland Firefighter Smoke Exposure Study, George Anthony Broyles
Wildland Firefighter Smoke Exposure Study, George Anthony Broyles
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
This report addresses exposure to smoke from wildland and prescribed fires encountered by wildland firefighters. Smoke from vegetation as well as off-gasses from equipment such as chain saws, pumps, and drip torches are accounted for. Section II provides an overview of industrial hygiene science and techniques. Section III is a discussion and literature review of the components in wildland smoke, and section IV identifies the health concerns associated with smoke inhalation and a review of the current literature on exposure to inhalation irritants. Section V covers research that has been done on wildland firefighter smoke exposure. Section VI is an …
Amphibian Community Composition And Its Relationship To Salinity Along The Salt Creek In Wilderness Park, Lancaster County, Nebraska, Nicholas Arneson
Amphibian Community Composition And Its Relationship To Salinity Along The Salt Creek In Wilderness Park, Lancaster County, Nebraska, Nicholas Arneson
Department of Environmental Studies: Undergraduate Student Theses
Amphibians serve as an indication of proper ecosystem health. Due to their permeable skin and cutaneous respiration, amphibians are prone to be adversely affected by intensified water quality parameters (Welsh and Olliver 1998) . Salinity (the measure of dissolved salts) can have a serious effect on amphibian reproduction and recruitment (Smith et al 2006). A research project was enacted during the 2012 summer field season in Wilderness Park located in Lancaster County, Nebraska to determine if a relationship exists between amphibian species richness and relative abundance with measures of salinity (ppm). Breeding sites were determined and placed in three relative …
Modeling And Mapping In Support Of The Regional Conservational Strategy Framework, Theresa Burcsu, Thomas Albo, Joseph Bernert, Jennifer Dimiceli, James S. Kagan, Matthew D. Noone
Modeling And Mapping In Support Of The Regional Conservational Strategy Framework, Theresa Burcsu, Thomas Albo, Joseph Bernert, Jennifer Dimiceli, James S. Kagan, Matthew D. Noone
Institute for Natural Resources Publications
Prior to November 2010, when The Intertwine Alliance launched the Regional Conservation Strategy (RCS) and Biodiversity Guide (RBG) efforts for the Portland-Vancouver metropolitan region, conservation priorities in the metropolitan region were identified at a broad regional scale that generally excluded urban areas (e.g., state conservation strategies and Willamette Synthesis); were regional but based solely on expert opinion (e.g., Natural Features); and consisted of localized priorities that abruptly ended at jurisdiction boundaries. The goal of the RCS was to fill in the gaps between broad and local scales of information related to conservation priorities. RCS members envisioned a data-driven approach that …
Fearless: Painted Turtle Farm, Center For Public Service
Fearless: Painted Turtle Farm, Center For Public Service
SURGE
For the last seven years, the student-run organic farm has provided vegetables that were utilized both at Servo, the Campus Kitchen at Gettysburg College, and the food pantry to create meals that are both healthy and locally grown, providing sustainable and environmentally sound alternatives to other sources of herbs and vegetables. [excerpt]
Enhancing Coastal Resilience: Perspectives On Valuing Ri Coastal Lands, Kyle Nyskohus
Enhancing Coastal Resilience: Perspectives On Valuing Ri Coastal Lands, Kyle Nyskohus
Honors Projects in Science and Technology
This paper discusses coastal resilience as an organizing framework for future policymaking, coastal planning, and insurance decisions, and explores the different perspectives of the value of ecosystems held by various stakeholders in Rhode Island’s coastal communities. A grounded theory approach was used in an effort to abstract general insights from the substantive but isolated areas of coastal management and economics. Special attention is given to the perspectives of municipal decision makers, the National Flood Insurance Program, natural economists, and real estate developers. We have (1) conducted a statistical analysis of environmental spending of RI towns, (2) identified key models for …