Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (1313)
- Portland State University (254)
- Utah State University (198)
- University of South Florida (155)
- Western Kentucky University (148)
-
- City University of New York (CUNY) (135)
- Chapman University (132)
- Wilfrid Laurier University (129)
- University of Colorado Law School (125)
- SIT Graduate Institute/SIT Study Abroad (108)
- University of Nevada, Las Vegas (107)
- Old Dominion University (90)
- University of Arkansas, Fayetteville (87)
- Claremont Colleges (74)
- Montclair State University (72)
- South Dakota State University (71)
- Singapore Management University (70)
- Chinese Academy of Sciences (68)
- University of New Mexico (68)
- Department of Primary Industries and Regional Development, Western Australia (65)
- University of Louisville (64)
- University of Kentucky (60)
- Louisiana State University (58)
- Central Washington University (53)
- University of Rhode Island (53)
- University of Texas Rio Grande Valley (53)
- Chulalongkorn University (51)
- Indiana State University (50)
- University of Denver (50)
- California State University, San Bernardino (49)
- Keyword
-
- Climate change (212)
- Sustainability (166)
- United States (133)
- Remote sensing (127)
- GIS (114)
-
- Environment (96)
- Mongolia (93)
- Conservation (90)
- Water quality (87)
- California (70)
- Climate (70)
- Agriculture (67)
- Drought (63)
- Nebraska (59)
- Ecology (54)
- Geography (54)
- Climate Change (52)
- Environmental justice (49)
- Water (48)
- Groundwater (47)
- Land use (47)
- Biodiversity (44)
- Western Australia (44)
- Remote Sensing (42)
- Hydrology (41)
- Envirome (40)
- Pollution (40)
- Resilience (40)
- Sustain (40)
- Management (39)
- Publication Year
- Publication
-
- School of Natural Resources: Faculty Publications (283)
- Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 (266)
- USF Tampa Graduate Theses and Dissertations (113)
- Theses and Dissertations (Comprehensive) (112)
- United States National Park Service: Publications (110)
-
- Independent Study Project (ISP) Collection (100)
- Electronic Theses and Dissertations (97)
- United States Geological Survey: Staff Publications (85)
- Masters Theses & Specialist Projects (82)
- Water Current Newsletter (74)
- Dissertations and Theses (70)
- United States Department of Agriculture Wildlife Services: Staff Publications (70)
- Bulletin of Chinese Academy of Sciences (Chinese Version) (68)
- Mathematics, Physics, and Computer Science Faculty Articles and Research (64)
- Theses and Dissertations (62)
- Graduate Theses and Dissertations (50)
- Environmental Science and Management Faculty Publications and Presentations (49)
- United States Department of Commerce: Staff Publications (49)
- Biology, Chemistry, and Environmental Sciences Faculty Articles and Research (48)
- Publications and Research (48)
- Geography ETDs (47)
- Marine Affairs Theses and Major Papers (46)
- All-Inclusive List of Electronic Theses and Dissertations (45)
- All Peer-Reviewed Publications (43)
- Geography Faculty Publications and Presentations (42)
- Department of Earth and Environmental Studies Faculty Scholarship and Creative Works (41)
- Sustain Magazine (41)
- Research Collection College of Integrative Studies (39)
- Department of Environmental Studies: Undergraduate Student Theses (38)
- School of Earth, Environmental, & Marine Sciences Faculty Publications (38)
- Publication Type
- File Type
Articles 4441 - 4470 of 5815
Full-Text Articles in Entire DC Network
Integrating Remote Sensing And Geographic Information Systems, James W. Merchant, Sunil Narumalani
Integrating Remote Sensing And Geographic Information Systems, James W. Merchant, Sunil Narumalani
School of Natural Resources: Faculty Publications
Remote sensing and geographic information systems (GIS) comprise the two major components of geographic information science (GISci), an overarching field of endeavor that also encompasses global positioning systems (GPS) technology, geodesy and traditional cartography (Goodchild 1992, Estes and Star 1993, Hepner et al. 2005). Although remote sensing and GIS developed quasi-independently, the synergism between them has become increasingly apparent (Aronoff 2005). Today, GIS software almost always includes tools for display and analysis of images, and image processing software commonly contains options for analyzing ‘ancillary’ geospatial data (Faust 1998). The significant progress made in ‘integration’ of remote sensing and GIS has …
Remote Sensing Of Cropland Agriculture, M. Duane Nellis, Kevin P. Price, Donald Rundquist
Remote Sensing Of Cropland Agriculture, M. Duane Nellis, Kevin P. Price, Donald Rundquist
School of Natural Resources: Faculty Publications
Remote sensing has long been used in monitoring and analyzing agricultural activities. Well prior to the first coining of the term ‘remote sensing’ in 1958 by Eveyln Pruitt of the U.S. Office of Naval Research (Estes and Jensen 1998), scientists were using aerial photography to complete soil and crop surveys associated with agricultural areas in the United States and other parts of the world (Goodman 1959). Most of such work in the 1930s involved general crop inventories by the U.S. Department of Agriculture and soil survey mapping as part of the work of the then U.S. Soil Conservation Service. With …
Long-Term Agricultural Land-Use Trends In Nebraska, 1866–2007, Tim L. Hiller, Larkin A. Powell, Tim D. Mccoy, Jeffrey J. Lusk
Long-Term Agricultural Land-Use Trends In Nebraska, 1866–2007, Tim L. Hiller, Larkin A. Powell, Tim D. Mccoy, Jeffrey J. Lusk
School of Natural Resources: Faculty Publications
Although landscape changes from anthropogenic causes occur at much faster rates than those from natural processes (e.g., geological, vegetation succession), human perception of such changes is often subjective, inaccurate, or nonexistent. Given the large-scale land-use changes that have occurred throughout the Great Plains, the potential impacts of land-use changes on ecological systems, and the insight gained from knowledge of land-use trends (e.g., to compare to wildlife population trends), we synthesized information related to land-use trends in Nebraska during 1866–2007. We discussed and interpreted known and potential causes of short- and long-term land-use trends based on agricultural and weather data; farm …
Ecological Divergence Of Two Sympatric Lineages Of Buggy Creek Virus, An Arbovirus Associated With Birds, Charles R. Brown, Abinash Padhi, Amy T. Moore, Mary Bomberger Brown, Jerome E. Foster, Martin Pfeffer, Valerie A. O'Brien, Nicholas Komar
Ecological Divergence Of Two Sympatric Lineages Of Buggy Creek Virus, An Arbovirus Associated With Birds, Charles R. Brown, Abinash Padhi, Amy T. Moore, Mary Bomberger Brown, Jerome E. Foster, Martin Pfeffer, Valerie A. O'Brien, Nicholas Komar
School of Natural Resources: Faculty Publications
Most arthropod-borne viruses (arboviruses) show distinct serological subtypes or evolutionary lineages, with the evolution of different strains often assumed to reflect differences in ecological selection pressures. Buggy Creek virus (BCRV) is an unusual RNA virus (Togaviridae, Alphavirus) that is associated primarily with a cimicid swallow bug (Oeciacus vicarius) as its vector and the Cliff Swallow (Petrochelidon pyrrhonota) and the introduced House Sparrow (Passer domesticus) as its amplifying hosts. There are two sympatric lineages of BCRV (lineages A and B) that differ from each other by .6% at the nucleotide level. Analysis of 385 …
A Gis Analysis On Possible Photovoltaic Cell Use For Energy Reduction During Peak Hours In Huntington, West Virginia, James Eric Tadlock
A Gis Analysis On Possible Photovoltaic Cell Use For Energy Reduction During Peak Hours In Huntington, West Virginia, James Eric Tadlock
Theses, Dissertations and Capstones
Solar panels are one of the fastest growing renewable energy technologies. This study aims to identify to what extent roof-mounted solar panels can reduce the need of power provided by Appalachian Power Company. Data from the Reliability First Corporation was employed to determine the individual average household power usage. Three study areas in Huntington, West Virginia, were selected to determine if solar panels could be implemented. Roofs in the study areas were digitized to calculate the available area. Based on the average household usage, four different sized photovoltaic systems were determined. Potential power production was computed to identify any offset …
An Undescribed Gecko (Gekkonidae: Cyrtodactylus) From Deer Cave, Gunung Mulu National Park, Sarawak, With Comments On The Distribution Of Bornean Cave Geckos, Donald A. Mcfarlane, Joyce Lundberg, Keith Christenson
An Undescribed Gecko (Gekkonidae: Cyrtodactylus) From Deer Cave, Gunung Mulu National Park, Sarawak, With Comments On The Distribution Of Bornean Cave Geckos, Donald A. Mcfarlane, Joyce Lundberg, Keith Christenson
WM Keck Science Faculty Papers
Geckos of the genus Cyrtodactylus are a speciose group in Southeast Asia, with at least nine species known from the island of Borneo (Das & Ismail, 2001; Das, 2006). Of these species, Cyrtodactylus cavernicolus has the smallest known range and is therefore the most vulnerable, a status that is reflected in the species having been designated a Totally Protected Species in Sarawak. Confirmed records of C. cavernicolus are known only from Niah Cave, located in an isolated limestone block known as the Gunung Subis massif, approximately 13 km² in extent. The Niah Cave Gecko is presumed to be dependent on …
Greening The Orange, Carol L. Boll
Sustainable Trail Management: A Transdisciplinary Approach, Sinead O'Connor-Gotra
Sustainable Trail Management: A Transdisciplinary Approach, Sinead O'Connor-Gotra
Theses, Doctoral
The research reported has created a holistic model for sustainable trail management that is broader than the quantitative assessment of ecological trail degradation. The range of quantitative and qualitative results gathered show that a more realistic treatment of sustainable trail management needs is achieved through a qualitative, participative and flexible research process. The investigation focuses primarily on the assessment of trail degradation in the uplands of Co. Wicklow, Ireland where signs of deterioration have been observed as a consequence of recreational use. The nature and extent of trail degradation was assessed using a variety of techniques including qualitative and quantitative …
Nutrient Analysis Of The Estuarine And River Waters Of The Santa Margarita River Estuary, Barbara Elisabeth Long
Nutrient Analysis Of The Estuarine And River Waters Of The Santa Margarita River Estuary, Barbara Elisabeth Long
Theses Digitization Project
The purpose of this project was to analyze nutrient concentrations in the estuarine and river waters of the Santa Margarita River Estuary located on United States Marine Corps Base, Camp Pendleton in northern San Diego County, north of Oceanside, California.
The Promotion And Prevention Of Ahwahnee Water Principles For Resource Efficient Land Use In The Cities Of Ontario And San Bernardino, Melissa Danielle Miller
The Promotion And Prevention Of Ahwahnee Water Principles For Resource Efficient Land Use In The Cities Of Ontario And San Bernardino, Melissa Danielle Miller
Theses Digitization Project
This project will explore the environmental benefits of sustainable land use practices as defined in the Ahwahnee Water Principles for Resource Efficient Land Use. These principles identify resource efficient land use practices that local communities can implement. City ordinances contain barriers to prevent the implementation of Ahwahnee Water Principles. The city of Ontario's municipal code, New Model Colony General Plan, and several specific area plans as well as San Bernardino's general plan, municipal code, and University Hills Specific Plan were analyzed to identify preventions and promotions of these water principles. It was discovered both cities have high percentages in the …
In Situ Bioremediation Of Perchlorate In Soil And Groundwater, David Christopher Bertolacci
In Situ Bioremediation Of Perchlorate In Soil And Groundwater, David Christopher Bertolacci
Theses Digitization Project
This project conducted a technology assessment for in-situ bioremediation of perchlorate in soil and groundwater and assessed the suitability of electon donor amendments.
Cyanide Analysis In Wastewater, Heather Marie Lutes
Cyanide Analysis In Wastewater, Heather Marie Lutes
Theses Digitization Project
The purpose of this project was to look at and determine the methods that would best prevent the occurrence of false readings durring testing and analysis of cyanide in wastewater. This project was designed to help those wastewater treatment plants in the Santa Ana Watershed who are in the process of developing a uniform method that minimizes or eliminates interferences currently found. Eastern Municipal District, Inland Empire Utilities agency, Orange County Water District, San Bernardino Valley Municipal, Water District, and Western Municipal Water District all are members of the Santa Ana Watershed Project Authority (SAWPA).
An Inventory And Condition Survey Of The Lower Murchison River Area, Western Australia, P Hennig
An Inventory And Condition Survey Of The Lower Murchison River Area, Western Australia, P Hennig
Technical Bulletins
The inventory and condition survey of the lower Murchison River area, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 2002 and 2003, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. This survey report presents …
Investigation Of Anthropogenic Greenhouse Gas Emissions Generated Through The Production Of Portland Cement And A Comparison Of Mitigation Strategies, Sheri Marie Haggard
Investigation Of Anthropogenic Greenhouse Gas Emissions Generated Through The Production Of Portland Cement And A Comparison Of Mitigation Strategies, Sheri Marie Haggard
Theses Digitization Project
The purpose of this project investigates the projected anthropogenic C⁰² emissions generated through the production of Portland cement at three manufacturing facilities in southern California. Research consisted of projecting annual greenhouse gas emission inventories for three case studies pursuant to Assembly Bill 32, The Global Warming Solution Act of 2006, which requires mandatory reporting of large producers of greenhouse gas emissions in California.
The Biscayne Aquifer Of Southeastern Florida, Kevin J. Cunningham, Lee J. Florea
The Biscayne Aquifer Of Southeastern Florida, Kevin J. Cunningham, Lee J. Florea
Earth, Environmental, and Atmospheric Sciences Faculty Publications
No abstract provided.
The Cumberland Plateau Of Eastern Kentucky, Larry C. Simpson, Lee J. Florea
The Cumberland Plateau Of Eastern Kentucky, Larry C. Simpson, Lee J. Florea
Earth, Environmental, and Atmospheric Sciences Faculty Publications
No abstract provided.
The Southeastern Coastal Plain: An Overview, Lee J. Florea, H. L. Vacher
The Southeastern Coastal Plain: An Overview, Lee J. Florea, H. L. Vacher
Earth, Environmental, and Atmospheric Sciences Faculty Publications
No abstract provided.
Caves And Karst Of West-Central Florida, Lee J. Florea, David A. Budd, Robert B. Brinkman
Caves And Karst Of West-Central Florida, Lee J. Florea, David A. Budd, Robert B. Brinkman
Earth, Environmental, and Atmospheric Sciences Faculty Publications
No abstract provided.
Ua12/13 2009 Sustainability Report, Christian Ryan-Downing, Western Kentucky University
Ua12/13 2009 Sustainability Report, Christian Ryan-Downing, Western Kentucky University
Sustainability Publications and Resources
No abstract provided.
The Putnam Railroad Corridor Restoration Project: A Comprehensive Plan For Paired Ecological Restoration And Greenway Construction, Patrick J. Hopkins Jr.
The Putnam Railroad Corridor Restoration Project: A Comprehensive Plan For Paired Ecological Restoration And Greenway Construction, Patrick J. Hopkins Jr.
Student Theses 2001-2013
-
A Scanner-Based Approach To Soil Profile-Wall Mapping Of Root Distribution, J. M. Dauer, J. M. Withington, J. Oleksyn, J. Chorover, O. A. Chadwick, P. B. Reich, D. M. Eissenstat
A Scanner-Based Approach To Soil Profile-Wall Mapping Of Root Distribution, J. M. Dauer, J. M. Withington, J. Oleksyn, J. Chorover, O. A. Chadwick, P. B. Reich, D. M. Eissenstat
School of Natural Resources: Faculty Publications
No abstract provided.
Bats And Bell Holes: The Microclimatic Impact Of Bat Roosting, Using A Case Study From Runaway Bay Caves, Jamaica, Joyce Lundberg, Donald A. Mcfarlane
Bats And Bell Holes: The Microclimatic Impact Of Bat Roosting, Using A Case Study From Runaway Bay Caves, Jamaica, Joyce Lundberg, Donald A. Mcfarlane
WM Keck Science Faculty Papers
The microclimatic effect of bats roosting in bell holes (blind vertical cylindrical cavities in cave roofs) in Runaway Bay Caves, Jamaica, was measured and the potential impact of their metabolism on dissolution modelled. Rock temperature measurements showed that bell holes with bats get significantly hotter than those without bats during bat roosting periods (by an average of 1.1 °C). The relationship is clearest for bell holes with more than about 300 g aggregate bat body mass and for bell holes that are moderately wide and deep, of W:D ratio between 0.8 and 1.6. Measurement of temperature decay after abandonment showed …
Meeting Future Challenges Of Water And Energy Demand Using Watershed Management Strategies In The Inland Empire, Abigail Zepeda Gomez
Meeting Future Challenges Of Water And Energy Demand Using Watershed Management Strategies In The Inland Empire, Abigail Zepeda Gomez
Theses Digitization Project
The purpose of this project is to provide a cost analysis and possibliity of utilizing recycled water to the north area of Fontana and if it is even possible. Water shortage and drought conditions have increased the cost for treatment of potable water and imported water universally. This had brought much attention to recycled water far and wide. As the population and potable water demand increases over the next 20 years, the availability of recycled water is also projected to grow.
A System For Estimating Bowen Ratio And Evaporation From Waste Lagoons, Arturo I. Quintanar, Rezaul Mahmood, John H. Loughrin, Nanh Lovanh, Monica V. Motley
A System For Estimating Bowen Ratio And Evaporation From Waste Lagoons, Arturo I. Quintanar, Rezaul Mahmood, John H. Loughrin, Nanh Lovanh, Monica V. Motley
High Plains Regional Climate Center: Staff Publications
A low‐cost system was deployed above a swine waste lagoon to obtain estimates of Bowen ratios and characterize lagoon temperatures. The system consisted of humidity and temperature sensors and anemometers deployed above the lagoon, water temperature sensors, and a meteorological station located by the lagoon. To evaluate the system, data was analyzed from the 25th through 28th June 2007. Bowen ratios showed diurnal behavior near the lagoon surface characterized by negative values during day and positive ones at night. Latent (evaporation) and sensible heat fluxes were towards the atmosphere and the lagoon, respectively for most of the day. A diurnal …
The Most Effective Statistical Approach To Correct Environmental Satellite Data, Md Zahidur Rahman, Leonid Roytman
The Most Effective Statistical Approach To Correct Environmental Satellite Data, Md Zahidur Rahman, Leonid Roytman
Publications and Research
The proposed paper apply novel statistical approach to correct radiometric data measured by Advanced Very High Resolution Radiometers (AVHRR) onboard the National Oceanic and Atmospheric Administration (NOAA) Polar Orbiting Environmental Satellites (POES). This paper investigates Normalized Difference Vegetation Index (NDVI) stability in the NOAA/NESDIS Global Vegetation Index (GVI) data during 1982-2003. AVHRR weekly data for the five NOAA afternoon satellites for the China dataset is studied, for it includes a wide variety of different ecosystems represented globally. It was found that data for the years 1988, 1992, 1993, 1994, 1995 and 2000 are not stable enough compared to other years …
Destination Green, Mary Ellen Mallia
Destination Green, Mary Ellen Mallia
Presentations
Presented at the Northeast Campus Sustainability Consortium Conference
Mitigation Under Section 404 Of The Clean Water Act: Where It Comes From, What It Means, Palmer Hough, Morgan Robertson
Mitigation Under Section 404 Of The Clean Water Act: Where It Comes From, What It Means, Palmer Hough, Morgan Robertson
United States Environmental Protection Agency: Publications
The requirement to mitigate impacts to wetlands and streams is a frequently misunderstood policy with a long and complicated history. We narrate the history of mitigation since the inception of the Clean Water Act Section 404 permit program in 1972, through struggles between the US Environmental Protection Agency and the US Army Corps of Engineers, through the emerging importance of wetland conservation on the American political landscape, and through the rise of market-based approaches to environmental policy. Mitigation, as it is understood today, was not initially foreseen as a component of the Section 404 permitting program, but was adapted from …
Anthropogenic Scarring Of Western Gray Whales (Eschrichtius Robustus), Amanda Bradford, David Weller, Yulia Ivaschenko, Alexander Burdin, Robert L. Brownell Jr.
Anthropogenic Scarring Of Western Gray Whales (Eschrichtius Robustus), Amanda Bradford, David Weller, Yulia Ivaschenko, Alexander Burdin, Robert L. Brownell Jr.
United States Department of Commerce: Staff Publications
Western gray whales (Eschrichtius robustus) are critically endangered and anthropogenic threats, such as entanglement in fishing gear and collisions with vessels, may be acting to limit recovery of the population. Thus, examining the magnitude of such anthropogenic interactions using a scar-based approach is warranted. A multi-year (1995–2005) photo-identification study of western gray whales on their feeding ground off northeastern Sakhalin Island, Russia, has resulted in a large data set of digital and film images of 150 individuals. These images were reviewed and scored for anthropogenic scarring by recording the presence of visible scars resulting from fishing gear entanglement …
Behavior Of Melon-Headed Whales, Peponocephala Electra, Near Oceanic Islands, Robert L. Brownell Jr., Katherine Ralls, Simone Baumann-Pickering, M. Michael Poole
Behavior Of Melon-Headed Whales, Peponocephala Electra, Near Oceanic Islands, Robert L. Brownell Jr., Katherine Ralls, Simone Baumann-Pickering, M. Michael Poole
United States Department of Commerce: Staff Publications
Southall et al. (2006) concluded that a near mass stranding (MS) of melon-headed whales (MHWs), Peponocephala electra, in Hanalei Bay, Kauai, Hawaii, on 3–4 July 2004, was likely related to the operation of mid-frequency sonars (MFS). However, subsequent authors argued that the nearly simultaneous entry of MHWs into Sasanhaya Bay, Rota (∼5,740 km away) made this conclusion untenable. They suggested that both sightings, and other MSs of MHWs, could be related to lunar cycles. To resolve this question, we reviewed information on the biology and behavior of MHWs and compared the two sightings to observations of MHWs around Palmyra …
Contrasting Patterns Of Genetic Diversity At Three Different Genetic Markers In A Marine Mammal Metapopulation, J. I. Hoffman, K. K. Dasmahapatra, W. Amos, C. D. Phillips, T. S. Gelatt, J . W. Bickham
Contrasting Patterns Of Genetic Diversity At Three Different Genetic Markers In A Marine Mammal Metapopulation, J. I. Hoffman, K. K. Dasmahapatra, W. Amos, C. D. Phillips, T. S. Gelatt, J . W. Bickham
United States Department of Commerce: Staff Publications
Many studies use genetic markers to explore population structure and variability within species. However, only a minority use more than one type of marker and, despite increasing evidence of a link between heterozygosity and individual fitness, few ask whether diversity correlates with population trajectory. To address these issues, we analyzed data from the Steller’s sea lion, Eumetiopias jubatus, where three stocks are distributed over a vast geographical range and where both genetic samples and detailed demographic data have been collected from many diverse breeding colonies. To previously published mitochondrial DNA(mtDNA) and microsatellite data sets,we have added new data for …