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Articles 43411 - 43440 of 52730
Full-Text Articles in Physical Sciences and Mathematics
1996 File Geodatabase Containing Aerial Photos, Pete Reehling, Richard Mckenzie, City Of Tampa Department Of Sanitary Sewers Bay Study Group
1996 File Geodatabase Containing Aerial Photos, Pete Reehling, Richard Mckenzie, City Of Tampa Department Of Sanitary Sewers Bay Study Group
Images
The Bay Study Group was created by the City of Tampa in 1976 to monitor the effects of pollution abatement that occurred in Hillsborough Bay when the city’s wastewater treatment plant was upgraded from primary to advanced treatment in 1979. The Bay Study Group documented a remarkable restoration of water quality parameters and biological indicators in Hillsborough Bay from the mid 1980s until 2009, when it was disbanded. This zip Geodatabase file contains the aerial photos for the year 1996.
The Yellowed Archives Of Yellowcake, Ken Silver
The Yellowed Archives Of Yellowcake, Ken Silver
Canyonlands Research Bibliography
Extensive historical documentation of exposures and releases at government-owned energy facilities is a unique and valuable resource for analyzing and communicating health risks. Facilities at all stages of the atomic fuel cycle were the subject of numerous industrial hygiene, occupational health, and environmental assessments during the Cold War period. Uranium mines and mills on the Colorado Plateau were investigated as early as the 1940s. One such facility was the mill in Monticello, Utah, which began operation as a vanadium extraction plant in 1943 and was later adapted to recover uranium from camotite ores. The mill ceased operation in 1960. The …
Relative Risk Assessment For Cape Hatteras National Seashore, John Cary Buie
Relative Risk Assessment For Cape Hatteras National Seashore, John Cary Buie
Dissertations, Theses, and Masters Projects
No abstract provided.
Canadian Cooperative Wildlife Health Centre Newsletter, Volume 4-2, Winter 1996
Canadian Cooperative Wildlife Health Centre Newsletter, Volume 4-2, Winter 1996
Canadian Cooperative Wildlife Health Centre: Newsletters and Publications
Involvement in Mexico New Diagnostic Tools Hook Lake Wood Bison Recovery Project Progress Report - July 1996 Conjunctivitis in cormorants - Prince Edward IslandTularemia in snowshoe hares - Nova Scotia Seasonal mortality of terns continues in Kouchibouguac National Park, New Brunswick Belugas from the St. Lawrence Estuary Secondary Tyzzar's Disease in a Racoon infected with Canine Distemper Diazinon poisoning in Geese Newcastle disease in cormorants Herpesvirus in owls Predator Attacks Botulism - 1996 Winter Mortality In Peace River Region Ungulates Diazinon poisoning of American wigeon
Rex ' 96 : An Expert Guide To Revegetation, David Bicknell
Rex ' 96 : An Expert Guide To Revegetation, David Bicknell
Journal of the Department of Agriculture, Western Australia, Series 4
Agriculture Western Australia has provided coordination and technical input to a powerful source of information on plants for Australian conditions. David Bicknell outlines some of its features and uses.
Farmers, local government, advisers and even gardeners often have trouble finding the right plant for the right place for a given purpose. Rather than spend a lot of time, money and effort looking through scattered sources of information, many people stick with a limited number of species year after year. This neglects plants that may be much better suited to the purpose, and also fails to develop Australia's huge range of …
Virginia Game Fish Tagging Program Annual Report 1995, Cm Bain Iii, John A. Lucy
Virginia Game Fish Tagging Program Annual Report 1995, Cm Bain Iii, John A. Lucy
Reports
The Virginia Came Fish tagging Program (VGFTP) was established in 1995 as an ongoing, cooperative project of the Virginia Marine Resources Commission and the Virginia Institute of Marine Science of the College of William and Mary The project is funded with revenues generated by Virginia's marine recreational fishing license.
Scale Issues In Soil Moisture Modelling: Problems And Prospects, Rezaul Mahmood
Scale Issues In Soil Moisture Modelling: Problems And Prospects, Rezaul Mahmood
School of Natural Resources: Faculty Publications
Soil moisture storage is an important component of the hydrological cycle and plays a key role in land-surface-atmosphere interaction. The soil-moisture storage equation in this study considers precipitation as an input and soil moisture as a residual term for runoff and evapotranspiration. A number of models have been developed to estimate soil moisture storage and the components of the soil-moisture storage equation. A detailed discussion of the implication of the scale of application of these models reports that it is not possible to extrapolate processes and their estimates from the small to the large scale. It is also noted that …
Issues Raised By Economic Definitions Of Sustainability, Richard W. Wahl, University Of Colorado Boulder. Natural Resources Law Center
Issues Raised By Economic Definitions Of Sustainability, Richard W. Wahl, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
19 p. ; 28 cm
Resource Law Notes Newsletter, No. 36, Winter Issue, Jan. 1996, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes Newsletter, No. 36, Winter Issue, Jan. 1996, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)
No abstract provided.
Land Capability Assessment For The Wellington-Blackwood Survey, Peter J. Tille
Land Capability Assessment For The Wellington-Blackwood Survey, Peter J. Tille
Resource management technical reports
This report has been produced to provide more detail on the land capability assessments presented in the Wellington-Blackwood Land Resources Survey (Tille 1996). In that report, the land capability of each of the soil-landscape subsystems has been summarised with a brief description. Capability ratings are provided here for each of the map units (including subsystem phases) which appear on the two map sheets (Tille et al. 1996) accompanying the Wellington-Blackwood Land Resources Survey.
A New Vision: U.S Travel And Tourism Industry, Greg Farmer
A New Vision: U.S Travel And Tourism Industry, Greg Farmer
Hospitality Review
Greg Farmer, U.S. Under Secretary of Commerce for Travel and Tourism, envisions a new proactive role for travel and tourism in the U.S. He has written this article especially for the FIU Hospitality Review.
Patterns Of Phytoplankton Abundance And Nutrient Concentration In The York River Estuary, Virginia: 1984-1994, Yongsik Sin, Richard L. Wetzel
Patterns Of Phytoplankton Abundance And Nutrient Concentration In The York River Estuary, Virginia: 1984-1994, Yongsik Sin, Richard L. Wetzel
Reports
No abstract provided.
Virginia Wetlands Management Handbook 2nd Edition, Wetlands Program, Virginia Institute Of Marine Science, Thomas A. Barnard
Virginia Wetlands Management Handbook 2nd Edition, Wetlands Program, Virginia Institute Of Marine Science, Thomas A. Barnard
Reports
No abstract provided.
Development And Lipid Composition Of The Harpacticoid Copepod Nitocra Spinipes Reared On Different Diets, Gregory M. Weiss, George B. Mcmanus, H. Rodger Harvey
Development And Lipid Composition Of The Harpacticoid Copepod Nitocra Spinipes Reared On Different Diets, Gregory M. Weiss, George B. Mcmanus, H. Rodger Harvey
OES Faculty Publications
We reared the harpacticoid copepod Nitocra spinipes on diets of bacteria, a diatom, or a macroalga, evaluating survivorship and growth in short-term (≤ 1 generation) experiments. Lipid content of the copepods and their diets was measured and used as an index of nutrition. Although growth, survivorship and lipid content of N. spinipes were significantly greater when fed the diatom, which had the highest lipid content of the 3 diets, the copepod was able to develop from egg to adult when fed a lipid- poor bacterial diet. Furthermore, this species was able to go through developmental molts without the addition of …
The Meteorological Effects Of The Kuwait Oil Fires, Patrick Kevin Dowling
The Meteorological Effects Of The Kuwait Oil Fires, Patrick Kevin Dowling
Dissertations, Theses, and Masters Projects
No abstract provided.
Captive Environmental Influences On Behavior In Zoo Drills And Mandrills (Mandrillus), A Threatened Genus Of Primate, Erik Terdal
Captive Environmental Influences On Behavior In Zoo Drills And Mandrills (Mandrillus), A Threatened Genus Of Primate, Erik Terdal
Dissertations and Theses
Drills (Mandrillus leucophaeus) are an endangered species of African monkey (Cercopithecidae), and their sole congener the mandrill (Mandrillus sphinx) is vulnerable to extinction. Both species are threatened in the wild by deforestation and hunting.
Drills have a poor record of captive reproduction. Many individuals appear to have behavioral deficiencies which interfere with reproduction. Thus, the zoo population of drills does not serve as a “hedge” against the species’ total extinction: drills are endangered in captivity as well as in the wild. Mandrills, by contrast, reproduce well in captivity. Information on the behavior of mandrills in captivity may help zoo managers …
Final Environmental Impact Statement For The Bal'diyaka Interpretive Center At Gregory Point On The Oregon Coast In Coos County, Joseph A. Maser
Final Environmental Impact Statement For The Bal'diyaka Interpretive Center At Gregory Point On The Oregon Coast In Coos County, Joseph A. Maser
Environmental Science and Management Faculty Publications and Presentations
The Confederated Tribes of Coos, Lower Umpqua and Siuslaw Indians, in partnership with the Coos Bay District of the Bureau of Land Management (BLM) are proposing to construct and operate an interpretive center near or on the South Coast of Oregon, near Coos Bay. The Bal'diyaka Interpretive Center is envisioned to contain a 51,000 square foot main building, a recreated coastal Indian village, an ethnobotanical interpretive trail, vehicular circulation and parking, and utilities infrastructure.
This Environmental Impact Statement analyzes four alternatives for this proposed interpretive center. The proposed action of the BLM would locate the Bal'diyaka Interpretive Center on Gregory …
Mechanisms Of Pentachlorophenol Induced Charge Transport In Lipid Membranes, William Charles Brown
Mechanisms Of Pentachlorophenol Induced Charge Transport In Lipid Membranes, William Charles Brown
Dissertations and Theses
Pentachlorophenol (PCP) is one of the prominent environmental pollutant that has penetrated into food chain and is present in humans. Health concerns have been raised since daily intake of PCP by the US population is estimated to be 16-19 µg. PCP facilitates dissipation of electrochemical potential gradients of hydrogen ions across energy transducing membranes, which are the energy sources for the conversion of adenosine diphosphate into adenosine triphosphate. Closely linked to these dissipative effects is the development of electrical conductivity in lipid membranes, induced by the presence of PCP. Three modes of PCP - induced membrane electrical conductivity were theoretically …
Leaner Environmental Policies For Agriculture, David E. Ervin, Elisabeth A. Graffy
Leaner Environmental Policies For Agriculture, David E. Ervin, Elisabeth A. Graffy
Economics Faculty Publications and Presentations
Farmers and ranchers face a most troubling dilemma. Complex political forces have mapped two quite different paths to environmental management-a rollback of federal regulations or a buildup of traditional subsidies. In the words of a famous modern philosopher, "When you reach a fork in the road, take it!" But either choice poses risk for the industry and will not likely ameliorate nettlesome environmental problems. A third path could help the industry maintain competitiveness and meet environmental challenges. This path uses me latest science to identify agroenvironmental problems and emphasizes economically attractive technology to sustain environmental improvements.
A Functional Group Approach To Detecting Shifts In Macroalgal Communities Along A Disturbance Gradient, J. C. Phillips
A Functional Group Approach To Detecting Shifts In Macroalgal Communities Along A Disturbance Gradient, J. C. Phillips
Theses : Honours
A recently proposed hypothesis argued that morphologically and functionally similar macroalgae could be grouped to study the structure of macroalgal communities. It was argued that these functional groups can be used to predict changes to community composition that result from disturbance. This study examined whether the functional group model held in detecting changes in macroalgal community structure within one bioregion, by applying it to a habitat exposed to different levels of physical disturbance associated with wave exposure. Results obtained using a functional group approach were compared to those obtained using a species level approach. Three parallel reef lines in Marmion …
Introduced Cyprinid (Carp) Fishes In Western Australia And Their Management Implications, K. R. Breheny
Introduced Cyprinid (Carp) Fishes In Western Australia And Their Management Implications, K. R. Breheny
Theses : Honours
Australia has no native cyprinid species and five introduced species have established self-sustaining populations. This study examines the cyprinid species present in Western Australia and estimates their distribution. The potential for introduced cyprinids to cause environmental impacts is explained and ameliorative action recommended. The presence and distribution of cyprinid species is assessed by examination of museum records, published literature, reported collections, anecdotal evidence and sampling of wetland habitats. Two species, Carassius nuratus (Goldfish) and Cyprinus carpio (Koi carp) are believed to have established populations and a map of estimated distribution is compiled. The capacity for introduced carp to undergo sudden …
Modelling The Effects Of Rehabilitation And Changed Agricultural Practices In A Saline-Affected Rural Catchment, M. K. Heller
Modelling The Effects Of Rehabilitation And Changed Agricultural Practices In A Saline-Affected Rural Catchment, M. K. Heller
Theses : Honours
The Bremer river catchment, on the South-coast of Western Australia, is typical of most river catchments in this region in that it has been seriously affected by sedimentation, salinisation and eutrophication brought on by the gradual dominance of agricultural land management practices. Vegetated rehabilitation and changed agricultural land management practices (ie minimum / zero tillage) have now been widely adopted throughout the catchment in response to these degradation issues. This study examined the potential impact minimum / zero tillage, vegetated rehabilitation and remnant vegetation could have on both a farm and catchment wide scale. A Geographical Information System was developed …
Fuel Characteristics Of Rehabilitated Bauxite Mines In Western Australia, Sarah J. Collins
Fuel Characteristics Of Rehabilitated Bauxite Mines In Western Australia, Sarah J. Collins
Theses : Honours
This investigation assessed the fuel characteristics of Alcoa of Australia's rehabilitated bauxite mines in the south-west of Western Australia. The study determined the fuel loads, their composition and structure. The characteristics of fuel were determined, their relationship with time ascertained, and the similarity of these characteristics to the jarrah forest ecosystems that they have replaced was discussed. Pits aged from four to twenty years since rehabilitation were assessed. Predictive models were developed to allow the rapid assessment of fuel. The fuel characteristics in two controlled bum areas were also assessed to how much fuel would burn in a fire and …
Analysis Of Temporal And Spatial Variations In Vegetation Communities For The Buxton Woods Region Of Cape Hatteras National Seashore, Marcia Berman, Gene Silberhorn, Carl Hershner
Analysis Of Temporal And Spatial Variations In Vegetation Communities For The Buxton Woods Region Of Cape Hatteras National Seashore, Marcia Berman, Gene Silberhorn, Carl Hershner
Reports
Residential development and growth along private lands bordering the southern portion of Cape Hatteras may be increasing at a rate inconsistent with the current water supply and demand. In the late 1960's and again in the late 1970's a series of wells were drilled to supply area residences and businesses with potable water from the local shallow water aquifer. Today, additional wells are being considered to serve the expanding community of Buxton Woods.
At the same time, the National Park Service maintains a series of ditches for both mosquito and flood control management. A large ditch which trends approximately northeast/southwest …
The Social Context Of Ecosystem Management: Unanswered Questions And Unresolved Issues, Mark W. Brunson
The Social Context Of Ecosystem Management: Unanswered Questions And Unresolved Issues, Mark W. Brunson
Environment and Society Faculty Publications
No abstract provided.
Rehabilitation Of A Salt Affected Wetland, Natalie Reeves
Rehabilitation Of A Salt Affected Wetland, Natalie Reeves
Theses : Honours
There exists an urgent need to rehabilitate salt-affected and degraded wetlands in the south-west of Western Australia, particularly in water resource catchments. Various rehabilitation techniques have been developed for such areas, which address the problem of integrating water catchment management and surrounding land use. Despite this, there has been limited success in restoring salt affected wetlands in the south west region of Western Australia. This project was established to develop a method for the rehabilitation of wetlands in the south west of Western Australia, using the western Coollangatta Farmland wetland as a case study. This site was chosen because of …
An Investigation Into The Use Of The Freshwater Crayfish Marron (Cherax Tenuimanus) As A Flagship For The Restoration Of The Blackwood River, Rachael Nickoll
An Investigation Into The Use Of The Freshwater Crayfish Marron (Cherax Tenuimanus) As A Flagship For The Restoration Of The Blackwood River, Rachael Nickoll
Theses : Honours
The Marron (Cherax tenuimanus) is arguably the most easily identified and ecologically important aquatic animal species in south-western Australian rivers. In fact it is quintessientially south-western Australian, endemic to the south-west corner of the continent and supporting a recreational fishery and commercial aquaculture industry within the state. Marron have keystone qualities as hosts of various epiphytic flora and fauna, and are central to the food web within south-west rivers. Their sensitivity to depleted oxygen conditions have also made them a potential "indicator" for water quality degradation. The study investigated these qualities in reference to the marron's potential as …
Preliminary Evaluation Of Water Quality In Tidal Creeks Of Virginia's Eastern Shore In Relation To Vegetable Cultivation, Mark W. Luckenbach, Morris H. Roberts Jr., Keith Boyd
Preliminary Evaluation Of Water Quality In Tidal Creeks Of Virginia's Eastern Shore In Relation To Vegetable Cultivation, Mark W. Luckenbach, Morris H. Roberts Jr., Keith Boyd
Reports
In response to concerns raised about the impacts of vegetable cultivation using plastic ground covers on water quality, we have initiated a broad-scale, systematic study of water quality in seaside tidal creeks of Virginia' s Eastern Shore. Our objective was to determine if acute toxicity associated with heavy metals or pesticides was more prevalent in tidal creeks with drainage areas which include this agricultural practice than in those which do not. Though such correlations do not confirm cause and effect, they may serve as the basis for future, more targeted investigations and for some immediate changes in land management practices …
Soils Of The Mount Beaumont Area, G G. Scholz, Henry Smolinski
Soils Of The Mount Beaumont Area, G G. Scholz, Henry Smolinski
Land resources series
Mount Beaumont Mount Beaumont is approximately 100 km north-east of Esperance in the south-east of Western Australia. In 1982 an area of 35,000 ha of virgin Crown Land was released for agriculture (identified as Mount Beaumont Stage I) and later it was proposed to release a further 33,600 ha (Mount Beaumont Stage II). Following development of the first stage, doubts arose about the suitability of the soils for agriculture, so the Department of Agriculture (now Agriculture Western Australia) surveyed the soils of the Mount Beaumont Stage II area before further land release. The survey indicated severe limitations to production and …
Effects Of Sand-Mining On Benthic Communities And Resource Value : Thimble Shoal, Lower Chesapeake Bay, Linda C. Schaffner, Michele A. Horvath, Carl H. Hobbs Iii
Effects Of Sand-Mining On Benthic Communities And Resource Value : Thimble Shoal, Lower Chesapeake Bay, Linda C. Schaffner, Michele A. Horvath, Carl H. Hobbs Iii
Reports
In August 1990 the City of Hampton placed approximately 276,000 cubic yards of sand from a designated borrow site on Thimble Shoal onto Buck:roe Beach for beach restoration. The Buck:roe reserve identified by Kimball et al. (1989) contains large quantities of beach quality material and is located less then 2.5 km offshore of Buck:roe Beach. In early 1989 a small section (330 m by 240 m) located in 5 m of water was delineated and permitted for dredging. This project represents the first instance of permitted, sand-mining activities for beach nourishment in the lower bay. Although the impacts of the …