Physical Sciences and Mathematics Commons^™

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

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 …

Managing External Threats To National Parks In Canada's Western Mountains (Alberta), George Yap

Theses and Dissertations (Comprehensive)

External threats to protected areas exist because the area encompassed by the legal boundaries of many protected areas is less than what is needed to maintain a minimum viable population of various animal species and some types of plant associations. While external stresses to parks are the result of a wide range of human activities, they threaten ecological integrity in two general ways: by contributing to habitat fragmentation, alienation and loss (HFAL), and/or undermining the long-term viability of transboundary animal populations. However, in comparison to internal threats, addressing external threats is considerably more complex since park managers have no legal …

Estimated Nitrogen Fluxes And Nitrogen-Chlorophyll Relationships In Tampa Bay, 1985-1994, Gerold Morrison, Anthony Janicki, David Wade, James Martin, Gabriel Vargo, Roger Johansson

Reports

Cultural eutrophication driven by anthropogenic nutrient loadings has been identified as a priority problem affecting the water quality of Tampa Bay. Bay management programs therefore wish to control future nutrient loads, an effort that will be complicated by the continuing population growth projected for the watershed in coming decades. The eutrophication management efforts is "resource-based" seeking to maintain water clarity in the bay that is adequate to support seagrass at target acreage levels. Among the factors affecting water clarity, anthropogenic nitrogen loadings and corresponding increases in phytoplankton density appear most amenable to management.

Energy And Deforestation In Ghana: A Study Of Woodfuel-Deforestation Links In Rural Ghana, Iddrisu Adam

Theses and Dissertations (Comprehensive)

Forests are one of the most valuable natural resources of many countries, including Ghana. Timber and other forest products have contributed immensely to the development of the country. These same forests have been a source of sustenance to the Ghanian people. Most particularly, forests have been the principal source of domestic energy by way of providing woodfuels. The heavy reliance on forest resources is taking its toll on the health of Ghanaian forests. In recent years, there has been increased awareness of the depletion of trees—a problem that many researchers have attributed to the over-exploitation of forests especially for domestic …

Zebra Mussel Infestation Of Unionid Bivalves (Unionidae) In North America, Don W. Schloesser, Thomas F. Nalepa, Gerald L. Mackie

United States Department of Commerce: Staff Publications

In 1989, zebra mussels received national attention in North America when they reached densities exceeding 750,000/m² in a water withdrawal facility along the shore of western Lake Erie of the Laurentian Great Lakes. Although water withdrawal problems caused by zebra mussels have been of immediate concern, ecological impacts attributed to mussels are likely to be the more important long-term issue for surface waters in North America. To date, the epizoic colonization (i.e., infestation) of unionid bivalve mollusks by zebra mussels has caused the most direct and severe ecological impact. Infestation of and resulting impacts caused by zebra …

Storm Water Pollution Patrol: A Thematic Unit For Use In Elementary Classrooms, Linda Ann Sánchez

Theses Digitization Project

No abstract provided.

A Constructivist Study Of University Curricular Attributes And Faculty Leadership In Support Of Environmental Sustainability, Esther Jane Ross, Gary Mcmane

Theses Digitization Project

No abstract provided.

Incorporating Environmental Education Into The Curriculum Through The Use Of Children's Literature, Tina Marie Prosch

Theses Digitization Project

No abstract provided.

Rain Forest Curriculum For Upper Elementary And Middle Grades, Nancy Jane Brinkley

Theses Digitization Project

No abstract provided.

An Overview Of Environmental Development In The Game Parks Of Kenya, Carolyn G. Ginter

Theses Digitization Project

Kenya has one of the oldest and most developed national park and reserve systems among developing nations in Africa. Kenya's ecosystems have felt the impact of tourists, from big game hunters to photographic safaris, for over a century. This project contains the research on which the author intends to base a future book about Kenyan ecoturism for the general public.

The Development Of An Ecological Teaching Perspective: A Teacher Education Program, Caroline Conway Kolbert

Theses Digitization Project

This project describes a four-year teacher education program conducted at the Living Desert, a botanical and wildlife park located in Palm Desert, California. The program brought 12 classroom teachers and 3 zoological educators together to expand their understanding and practice of environmental education. This project concentrates on how the program affected my educational philosophy, strategy and practice as an educator at The Living Desert, and how it shifted the focus of our department's docent (volunteer guide) education in general.

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 …

Lipid Class Composition Of Oysters, Crassostrea Virginica, Exposed To Sediment-Associated Pahs, Tong Li

Dissertations, Theses, and Masters Projects

No abstract provided.

Fate And Transport Processes For Polycyclic Aromatic Hydrocarbons In The Surface Microlayer Of Southern Chesapeake Bay, Kewen Liu

Dissertations, Theses, and Masters Projects

Surface microlayer (SM) samples were collected with a rotating cylinder sampler from the York and Elizabeth River estuaries of southern Chesapeake Bay every other month from May 1994 through June 1995. Total suspended particle concentration (TSP) concentrations in the SM were found to be up to 1000 times higher than in the corresponding subsurface water, and to be exponentially associated with the wind speed at sampling. A relatively larger POC/TN ratio in the Elizabeth River SM compared with that in the York River SM was also observed. No seasonal trends were noticed in the SM characteristics; however, TSP, POC, and …

Breeding Ecology, Success, And Population Management Of The Piping Plover (Charadrius Melodus) At Chincoteague National Wildlife Refuge, Virginia, Robert Richard Cross

Dissertations, Theses, and Masters Projects

No abstract provided.

Nature Among The Mormons: An Ecocritical Approach To Mormon Literature, Gail D. Ballard

Theses and Dissertations

Increasingly, environmentalists have focused on Judeo-Christian tradition as the cause of Western culture's ecological crisis. It is the purpose of this paper to examine the charges against Judeo-Christian tradition and to show how the revealed doctrines of The Church of Jesus Christ of Latter-day Saints provide possible solutions to environmental challenges. The resulting Latter-day Saint environmental paradigm will be superimposed on selected Mormon literature to determine how effectively the doctrines taught by Church authorities filtered into popular Mormon culture.

Despite the inspired teachings of Latter-day Saint prophets, Mormons remain unimpressive in their environmental practices. My research will show that while …

Small Mammal Community Structure In Restored Prairies, Kathleen A. Falout

Masters Theses

The Illinois Department of Natural Resources currently manages approximately 4,000 hectares of natural prairie. High human impacts coupled with small patch size result in challenging management decisions for prairie conservation. The ideal restored prairie would consist of a mosaic of habitats varying in vegetation from forb-grass dominated areas to oak savannas, with concurrent stages of vegetative succession occurring across the habitats. A study was conducted at the Middle Fork State Fish and Wildlife Area located in Vermillion County, IL, to analyze small mammal diversity and community composition among three different stages of prairie restoration.

The three treatment categories were: fallow …

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 …

Retention And Separation Behaviour Of Chloropyrifos And Other Water Pollutants Using Polyurethane Foams, Rashed Saleh Al-Mehrazi

Theses

Heavy metals and pesticides represent a class of man-made environmental pollutants which also occur naturally in the environment. The presence of these pollutants in the industrial and agricultural wastewaters often represents a risk to the environment. Investigation of these species in the water is an important aspect of environmental pollution as human activities contributed to the progressive increase in the concentration of these compounds in the environmental as well as aquatic systems. Therefore, identification and removal (or reduction) of these species to an acceptable concentration are of prime importance.

The analytical utility of unloaded open-cell polyurethane foams and foams immobilizing …

Comparative Study Of Some Physiological And Behavioral Responses To Feed And Water Deprivation In Camels, Sheep And Goats, Huda Mohammed Shaheen

Theses

The aim of the study was to compare some physiological and biochemical responses in camels, sheep and goats when subjected to various periods of food and water deprivation. Another purpose of the study was to examine the feeding and drinking behaviour of dehydrated and starved animals when provided with food and water simultaneously. The study was performed at the Faculty of Agricultural Sciences Farm, University of United Arab Emirates, Al-Ain.

Animals were deprived of water and food for various periods; feed and water were withheld 2, 4 or 6 days in camels and 1, 2 or 3 days for sheep …