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Articles 19651 - 19680 of 22676
Full-Text Articles in Entire DC Network
Coprolite Analysis: A Biological Perspective On Archaeology, Karl J. Reinhard, Vaughn M. Bryant Jr.
Coprolite Analysis: A Biological Perspective On Archaeology, Karl J. Reinhard, Vaughn M. Bryant Jr.
School of Natural Resources: Faculty Publications
The most remarkable dietary remains recoverable from archaeological contexts are coprolites. Coprolites are desiccated or mineralized feces that are preserved in sheltered and open sites in arid regions, primarily in the New World. These dietary remains are remarkable from several perspectives. They typically contain a variety of macroscopic and microscopic remains that form interrelated data sets for the reconstruction of diets. Because contexts containing coprolites are typified by excellent preservation, the remains coprolites contain tend to be in better states of preservation than dietary remains recovered from nonfecal deposits. Coprolites also contain the well-preserved remains of intestinal parasites and pathogens …
Master Plan- Management Of Environmentally Sensitive Lands Within The Port Manatee Planning Area, Roy R. Lewis, Gene Bauer
Master Plan- Management Of Environmentally Sensitive Lands Within The Port Manatee Planning Area, Roy R. Lewis, Gene Bauer
Reports
In Apri11989, Tampa Electric Company established a Corporate Stewardship Program to review and make recommendations concerning environmentally sensitive lands owned by Tampa Electric Company lying outside of the then EPFG-designated area At the request of Mr. Rick Hager, Corporate Stewardship Program Director, Lewis Environmental Services, Inc. has prepared this master plan to assist the volunteer members of the Corporate Stewardship Citizens Committee with directing Tampa Electric Company's management of the environmentally sensitive lands that the company owns at this site.
An Evaluation Of The Remnant Vegetation Protection Scheme 1988-1991 : A Report, Department Of Agriculture And Food, Western Australia, Soil And Land Conservation Council (W.A.)
An Evaluation Of The Remnant Vegetation Protection Scheme 1988-1991 : A Report, Department Of Agriculture And Food, Western Australia, Soil And Land Conservation Council (W.A.)
All other publications
The objective of the Remnant Vegetation Protection Scheme is to encourage land owners to fence and protect areas of remnant vegetation for the purposes of flora and fauna conservation, land conservation and aesthetics. The means by which land owners are encouraged to protect remnant vegetation is the provision of a grant equal to half the cost of labour and materials to erect a stock-proof fence around the vegetation concerned. The RVPS is jointly administered by the Departments of Conservation and Land Management (CALM) and Agriculture (DAWA), with the latter as the lead agency. CALM contributes substantially to the RVPS through …
Environmental Education, Daniel Lynch, Charles Hutchinson
Environmental Education, Daniel Lynch, Charles Hutchinson
Dartmouth Scholarship
The need for a new profession devoted to environmental matters is asserted. The qualities of such a profession are sketched, and it is argued that new initiatives in environmental education are needed in the form of graduate, professional programs with primary emphasis on practice. An example 2-year program is presented. A fundamental requirement is scientific competence; undergraduate preparation in the sciences or engineering is mandatory. The graduate curriculum itself is built on three primary cores: environmental science and engineering, business and management, and public policy. Additionally, an environmental round table is proposed as a focal point for academic, industrial, governmental, …
Water Resources Review February - 1992 Vol 5 No 1, Annis Water Resources Institute
Water Resources Review February - 1992 Vol 5 No 1, Annis Water Resources Institute
AWRI Reviews
No abstract provided.
Kinetics Of Phenol Biodegradation By Pseudomonas Resinovorans (Atcc 14235), Susmita Guptapal
Kinetics Of Phenol Biodegradation By Pseudomonas Resinovorans (Atcc 14235), Susmita Guptapal
Theses
The kinetics of phenol biodegradation were studied by using a pure culture of Pseudomonas resinovorans (ATCC 14235). Experiments were performed in shaker flasks and samples were analyzed for biomass content (based on optical density), and for phenol concentrations (based on HPLC measurements). The experimental data indicated that phenol is an inhibitory substrate at high concentrations. Specific growth rate data were fitted to an Andrews' expression with good success. The regressed kinetic constants were also used in predicting phenol biodegradation as a function of time. It was found that predicted and actual experimental values were close at least for the first …
Immobilization Of Heavy Metals In Incinerator Ash Using A Microbiological System, Gordon Hinshalwood
Immobilization Of Heavy Metals In Incinerator Ash Using A Microbiological System, Gordon Hinshalwood
Theses
The heavy metals contained in incinerator ash constitute an environmental hazard because they can be leached out of the ash matrix by rain water after the ash is landfilled. This study focused on a novel biological treatment process in which immobilization of the heavy metal content of incinerator ash is achieved using naturally occurring microorganisms. Specifically, immobilization was obtained by the use of a sulfide producing bacteriological system. The genus Desulfovibrio was cultured under anaerobic conditions, providing a source of sulfide from the reduction of sulfate as a natural metabolic function. The sulfide produced then formed highly insoluble precipitates with …
Attempts To Demonstrate Reductive Dechlorination Of Chlorobenzenes By Anaerobic Microorganisms, Melissa S. Gross
Attempts To Demonstrate Reductive Dechlorination Of Chlorobenzenes By Anaerobic Microorganisms, Melissa S. Gross
Theses
Chlorobenzenes are a source of environmental pollution throughout the world. Investigations of the potential biodegradability of these compounds have been conducted employing different media under various conditions. In this study, the biodegradability of hexachlorobenzene (HCB), pentachlorobenzene (QCB), and 1,2,3,4-tetrachlorobenzene (1,2,3,4-TetCB) at a concentration of 70 uM (20 ppm), 80 uM (20 ppm), and 93 uM (20 ppm), respectively, was investigated. The source of inoculum was fresh anaerobic digester sewage sludge. Compound and sludge were combined in a serum bottle incubation system under anaerobic conditions and allowed to incubate at 30°C for several weeks. An extraction method utilizing hexane and acetone …
Recalcitrance Of Polychlorinated Biphenyls To Biodegradation By Phanerochaete Chrysosporium In Soil, Thierry B. Poncet
Recalcitrance Of Polychlorinated Biphenyls To Biodegradation By Phanerochaete Chrysosporium In Soil, Thierry B. Poncet
Theses
The white rot fungus Phanerochaete chrysosporium has been shown in the past to effectively degrade a number of chlorinated aromatic compounds. Previous investigators (Eaton, D. C., "Mineralization of Polychlorinated Biphenyls by Phanerochaete chrysosporium, a Lignolytic Fungus", Enz. Microb. Technol., 7, 194-196 (1985); Bumpus, J. A., Tien, M., Wright, D., and Aust, S. D., "Oxidation of Persistent Environmental Pollutants by White Rot Fungus", Science, 228, 1434-1436 (1985)) have also claimed that this fungus is capable of mineralizing polychlorinated biphenyls (PCBs) in submerged cultures under stationary conditions. Therefore, the objective of this work was to study the biodegradation activity of the fungus …
The Helioporacean Octocoral Epiphaxum, Recent And Fossil: A Monographic Iconography, Frederick M. Bayer
The Helioporacean Octocoral Epiphaxum, Recent And Fossil: A Monographic Iconography, Frederick M. Bayer
Studies in Tropical Oceanography
No abstract provided.
Ectoparasitism As A Cause Of Natal Dispersal In Cliff Swallows, Charles R. Brown, Mary Bomberger Brown
Ectoparasitism As A Cause Of Natal Dispersal In Cliff Swallows, Charles R. Brown, Mary Bomberger Brown
School of Natural Resources: Faculty Publications
Nestling Cliff Swallows (Hirundo pyrrhonota) in southwestern Nebraska that were relatively heavily parasitized by hematophagous fleas (Ceratophyllus celsus) and swallow bugs (Oeciacus vicarius) dispersed to nonnatal colonies to breed the subsequent year, whereas nestlings that were relatively lightly parasitized returned to their natal colony to breed. There were no significant differences between dispersers and nondispersers in natal clutch size, natal brood size, relative hatching date, natal body mass, natal nest's distance from the colony's center, and natal nest's age. There were no sex differences in dispersal tendencies. Dispersing birds tended to move to smaller colonies …
Recreation Use Limits And Allocation On The Lower Deschutes River, Sarah F. Bates, University Of Colorado Boulder. Natural Resources Law Center
Recreation Use Limits And Allocation On The Lower Deschutes River, Sarah F. Bates, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
iii, 73 p. ; 28 cm
Water Quality In Minnesota
Journal of the Minnesota Academy of Science
Abstracts of articles on water quality in Minnesota.
Dolores River Basin Water Quality Study, Department Of Interior; Bureau Of Reclamation, Technical Service Center; Denver, Co
Dolores River Basin Water Quality Study, Department Of Interior; Bureau Of Reclamation, Technical Service Center; Denver, Co
Elusive Documents
No abstract provided.
America's Waters: A New Era Of Sustainability: Report Of The Long's Peak Working Group On National Water Policy, David H. Getches, Lawrence J. Macdonnell, Charles F. Wilkinson, Long's Peak Working Group On National Water Policy, University Of Colorado Boulder. Natural Resources Law Center
America's Waters: A New Era Of Sustainability: Report Of The Long's Peak Working Group On National Water Policy, David H. Getches, Lawrence J. Macdonnell, Charles F. Wilkinson, Long's Peak Working Group On National Water Policy, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
12 p. ; 28 cm
The Western Public Lands: An Introduction, Sarah F. Bates, University Of Colorado Boulder. Western Lands Program, University Of Colorado Boulder. Natural Resources Law Center
The Western Public Lands: An Introduction, Sarah F. Bates, University Of Colorado Boulder. Western Lands Program, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
72 p. : ill., maps ; 28 cm
Restoring Endangered Ecosystems: The Truckee-Carson Water Rights Settlement, David Yardas, University Of Colorado Boulder. Natural Resources Law Center
Restoring Endangered Ecosystems: The Truckee-Carson Water Rights Settlement, David Yardas, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
12 p. : map ; 28 cm
Contributions To Sustainable Development From The Legal Community: Opportunity For International Cooperation, Rodrigo Barahona, University Of Colorado Boulder. Natural Resources Law Center
Contributions To Sustainable Development From The Legal Community: Opportunity For International Cooperation, Rodrigo Barahona, University Of Colorado Boulder. Natural Resources Law Center
Books, Reports, and Studies
9 p. ; 28 cm
Fact Sheet No.1: Nonpoint Source Pollution And Water Quality Of Northwest Arkansas, T. C. Daniel, D. R. Edwards, D. C. Wolf, K. F. Steele, M. J. Cochran
Fact Sheet No.1: Nonpoint Source Pollution And Water Quality Of Northwest Arkansas, T. C. Daniel, D. R. Edwards, D. C. Wolf, K. F. Steele, M. J. Cochran
Arkansas Water Resources Center Technical Reports
Preservation of a clean, safe, and biologically diverse environment can capture public attention as few other issues can. Indeed, recent international cooperative efforts indicate that there is an increasing global desire to pass on to future generations an environment at least equal in quality to the one we inherited.
Resource Law Notes Newsletter, No. 24, Jan. 1992, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes Newsletter, No. 24, Jan. 1992, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)
No abstract provided.
Mitigation Banking: A Potential Tool For Port Planners, Laura Kelley
Mitigation Banking: A Potential Tool For Port Planners, Laura Kelley
Marine Affairs Theses and Major Papers
Mitigation banking has been used as a means of facilitating the permit process by removing the negotiation of appropriate mitigation for development from the confines of the permit process. A developer with frequent needs to mitigate for losses associated with Section 404 and Section 10 requirements may, using a mitigation bank, consolidate mitigation and in so doing, potentially reduce mitigation costs. As a result of route maintenance, as well as expansion requirements, ports were considered to be good candidates for sponsoring mitigation bank efforts. Port use of mitigation banking has not been as expected due to a lack of available …
Sea-Surface Temperature Related Fisheries And Resource Markets, Jeffrey Michael Rasinski
Sea-Surface Temperature Related Fisheries And Resource Markets, Jeffrey Michael Rasinski
Marine Affairs Theses and Major Papers
This thesis addresses the potential application of sea-surface temperature (SST) data to economic resource markets. It considers the revolution in technology and the accessibility of timely, accurate SST observations for resource markets. Specifically, it addresses issues related to pelagic fisheries and the fish meal industry. The thesis presents a discussion and overview of the upwelling ecosystem of Peru and the Peruvian anchovy (Engraulis ringens) including quantitative analysis and forecasts for the fishery and fish meal prices. This analysis is used to demonstrate the commercial application and relationship between SST and related resource markets. The thesis establishes a bioeconomic statistical model …
The Potential Loss Of Coastal Open Space Due To The Utilization Of Privately Owned Wastewater Treatment Facilities: A Case Study In Gloucester, Massachusetts, Eric W. Hutchins
The Potential Loss Of Coastal Open Space Due To The Utilization Of Privately Owned Wastewater Treatment Facilities: A Case Study In Gloucester, Massachusetts, Eric W. Hutchins
Marine Affairs Theses and Major Papers
The impact of privately owned sewage treatment plants, a viable alternative to on-site septic systems, is examined in regards to future land-use patterns. It was hypothesized that the use of these facilities would lead to a greater loss of open space, in the coastal City of Gloucester, Massachusetts, than if only conventional on-site septic systems were to be permitted. Constraints to development such as zoning, wetlands, soil characteristics, parcel size, and economic viability were applied to undeveloped property in Gloucester. The results were used to identify individual parcels and calculate the respective developability based on the two different scenarios. Only …
Problems Of Fisheries Management On The Patagonian Shelf: A Decade After The 1982 Falklands (Malvinas) Conflict, Gustavo A. Bisbal
Problems Of Fisheries Management On The Patagonian Shelf: A Decade After The 1982 Falklands (Malvinas) Conflict, Gustavo A. Bisbal
Marine Affairs Theses and Major Papers
The armed conflict between Argentina and Britain over the Falkland Islands (Islas Malvinas) early in 1982, resulted in a confusing partition of the maritime area around these islands. The military strategies and policies developed by both countries during and after the war created an unclear situation regarding limits and jurisdictions, thus delaying managerial actions and regulation enforcement over the fishing resources of the area. Several foreign fishing fleets operating in the region at the time, took advantage of the lack of protective legislation and recognized authority, resulting in overfishing of species such as squid and hake. No significant control was …
Rhode Island Marine Debris Pilot Project, Christina L. Beal
Rhode Island Marine Debris Pilot Project, Christina L. Beal
Marine Affairs Theses and Major Papers
The Rhode Island Marine Debris Pilot Project was initiated in Newport, R.I. during the summer of 1991. The objective of the project was to decrease recreational boaters' contribution to marine debris. Two methods were used to achieve this goal. First, trash and recycling disposal facilities were increased around the harbor. Secondly, educational literature on the environmental consequences of marine debris, and the law that applies to overboard disposal, were distributed throughout the local marine community. The implementation of the pilot project led to a significant increase in the amount of debris brought ashore by boaters, and a decrease in the …
Developing A Guidebook For An Outdoor Classroom, David D. Martell
Developing A Guidebook For An Outdoor Classroom, David D. Martell
Theses Digitization Project
Field guide -- Map -- Nature trail plant species -- Plant identification key -- Species test plot -- Climate -- Cloud identification -- Desert soils -- Tortoise station -- Animal track and pond.
Naturescope Workshop Handbook For Facilitators, Sotera Madison
Naturescope Workshop Handbook For Facilitators, Sotera Madison
Theses Digitization Project
A guide for the training of presenters of the NatureScope series -- Correlations between California's Science Framework..., NatureScope, Project WILD, Project WILD Aquatic, & Project Learning Tree.
Fire In A Riparian Shrub Community: Postburn Water Relations In The Tamarix-Salix Association Along The Lower Colorado River, S. D. Smith, D. E. Busch
Fire In A Riparian Shrub Community: Postburn Water Relations In The Tamarix-Salix Association Along The Lower Colorado River, S. D. Smith, D. E. Busch
Life Sciences Faculty Research
Higher water potentials in recovering burned salt-cedar (Tamarix ramosissima) relative to unburned plants and the opposite situation in willow (Salix gooddingii) provide evidence that postfire water stress is reduced in the former but not the latter. Similarly, diurnal patterns of stomatal conductance in these taxa are consistent with the existence of more vigor in burned salt-cedar than willow. Plots of water potential and transpiration demonstrate that hydraulic efficiencies may contribute to differences in fire recovery.
An Analysis Of The Pattee Pond Watershed In Relation To Lake Water Quality, Problems In Environmental Science Course (Biology 493), Colby College, Water Organization For Mending Yesterday's Nature, Colby College, Student Land Use Group Study, Colby College
An Analysis Of The Pattee Pond Watershed In Relation To Lake Water Quality, Problems In Environmental Science Course (Biology 493), Colby College, Water Organization For Mending Yesterday's Nature, Colby College, Student Land Use Group Study, Colby College
Colby College Watershed Study: Pattee Pond (2008, 1992)
The purpose of this study was to analyze the water quality of Pattee Pond and to determine the factors that influence it. The study was divided into two major portions: 1) an assessment of land use practices that influence the water quality of the pond, and 2) an assessment of actual water quality of the pond and its tributaries. The investigation of the land use practices in the Pattee Pond watershed focused on determining the extent to which humans influence the water quality of the lake. Water from Pattee Pond and its tributaries was sampled and analyzed in the second …
The Place Of Farm Animals In Humane Sustainable Agriculture, M. W. Fox
The Place Of Farm Animals In Humane Sustainable Agriculture, M. W. Fox
eBooks
It is not yet widely recognized that the livestock industry has become a major threat to the world's economy, the environment, consumer health, and the food security of nations and generations to come. Farm animals do have a place in ecologically sound agriculture, but, as will be shown, they have not been properly integrated either in the United States or in other developed and less-developed nations of the world.