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Articles 1 - 19 of 19
Full-Text Articles in Physical Sciences and Mathematics
Freshwater Phytoplankton Populations Detected Using High Pressure Liquid Chromatography (Hplc) Of Taxon-Specific Pigments, Lauren Jeanne Simmons
Freshwater Phytoplankton Populations Detected Using High Pressure Liquid Chromatography (Hplc) Of Taxon-Specific Pigments, Lauren Jeanne Simmons
Theses and Dissertations
Phytoplankton are key primary producers in aquatic ecosystems, and the principle food source for primary consumers. Individual phytoplankton species respond to different physical, chemical and biological parameters, so monitoring taxonomic composition of the phytoplankton community is a means to monitor changes in environmental conditions. Phytoplankton community changes have frequently been monitored by estimating biomass (using chlorophyll a, measured fluorometrically), and taxonomic data obtained from cell counts. While such methods are useful, they are time-consuming. I hypothesized that high pressure liquid chromatography (HPLC) methods, which have been frequently used in marine systems, would allow separation and identification of key pigments. …
Virginia Wetlands Report Vol. 27, No. 2, Virginia Institute Of Marine Science, Center For Coastal Resources Management
Virginia Wetlands Report Vol. 27, No. 2, Virginia Institute Of Marine Science, Center For Coastal Resources Management
Virginia Wetlands Reports
Tidal Marsh Inventories
The Planet, 2012, Fall, James Rogers, Huxley College Of The Environment, Western Washington University
The Planet, 2012, Fall, James Rogers, Huxley College Of The Environment, Western Washington University
The Planet
No abstract provided.
A Reexamination Of The Eastern Collared Lizard (Crotaphytus Collaris Collaris) In Arkansas, Ashley A. Grimsley
A Reexamination Of The Eastern Collared Lizard (Crotaphytus Collaris Collaris) In Arkansas, Ashley A. Grimsley
Graduate Theses and Dissertations
Loss of suitable habitat is a threat to species worldwide. Habitat destruction, including loss, change, and fragmentation of habitat, is the leading cause of species extinction. Eastern collared lizards (Crotaphytus collaris collaris) are habitat specialists on glades. Both C. c. collaris and glade habitats are rare and of special concern in the state of Arkansas. Many glade populations have already been extirpated in the Ozarks of Arkansas and Missouri. Increasing knowledge of the distribution, habitat structure, and population dynamics of C. c. collaris is important to ensure the survival of this species in Arkansas.
A literature review of …
Greening Rural Festivals: Ecology, Sustainability And Human-Nature Relations, Christopher R. Gibson, C Wong
Greening Rural Festivals: Ecology, Sustainability And Human-Nature Relations, Christopher R. Gibson, C Wong
Chris Gibson
No abstract provided.
Roger Williams Park Edible Forest Garden, Mark S. Scialla
Roger Williams Park Edible Forest Garden, Mark S. Scialla
Senior Honors Projects
An edible forest garden is a low-maintenance system that uses edible native and regionally-adapted plants arranged in beneficial relationships to meet human, wildlife and ecosystem needs. The forest garden in Roger Williams Park will transform underutilized urban land into a highly productive parcel producing market-viable fruits, nuts, vegetables, medicine and fiber. Forest gardens mimic natural forest systems in architecture and complexity. The design follows ecological principles to create a system that promotes biodiversity and enhances the surrounding ecosystem. This project also demonstrates the potential to grow food and create land-based livelihoods in the city.
Located on the edge of a …
Homogenization Of Large-Scale Movement Models In Ecology With Application To The Spread Of Chronic Wasting Disease In Mule Deer, Martha J. Garlick
Homogenization Of Large-Scale Movement Models In Ecology With Application To The Spread Of Chronic Wasting Disease In Mule Deer, Martha J. Garlick
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Chronic wasting disease (CWD) is a transmissible spongiform encephalopathy (TSE) that affects deer, elk, and moose. TSEs are prion diseases which include mad cow disease and scrapie in sheep and goats. The disease agent is a misshapen protein called a prion, which causes lesions in the brain, and to date, there is no cure. CWD is a slow-developing, fatal disease, which is rare in the free-ranging mule deer population of Utah. Infected deer shed prions into the environment through saliva, feces, and decaying carcasses. These prions remain infective in soils for many years and healthy deer may contract CWD by …
Investigating Three Decades Of Vegetation Change In A Mojave Desert Mountain Range, Chris Lee Roberts
Investigating Three Decades Of Vegetation Change In A Mojave Desert Mountain Range, Chris Lee Roberts
UNLV Theses, Dissertations, Professional Papers, and Capstones
This project is a vegetation change study spanning 29 years in the Newberry Mountains of Southern Nevada. Long term monitoring data are crucial for understanding the effects of climate change on vegetation dynamics. Successful management intervention in vegetation change will require identification of early indicator plant species and their responses to climatic cues. This project is one of the oldest comparisons of resurveyed Mojave vegetation community plots with repeatable methodology and the longest survey interval reported for the southeastern Mojave Desert. 103 plots were relocated and resurveyed based on data methods in Jim Holland's thesis titled "A Vegetative Analysis of …
The Planet, 2012, Spring, Becky Tachihara, Huxley College Of The Environment, Western Washington University
The Planet, 2012, Spring, Becky Tachihara, Huxley College Of The Environment, Western Washington University
The Planet
No abstract provided.
Virginia Wetlands Report Vol. 27, No. 1, Virginia Institute Of Marine Science, Center For Coastal Resources Management
Virginia Wetlands Report Vol. 27, No. 1, Virginia Institute Of Marine Science, Center For Coastal Resources Management
Virginia Wetlands Reports
Sea Level Rise - State of the Science
Some Biogeographers, Evolutionists And Ecologists: Chrono-Biographical Sketches, Charles H. Smith, Joshua Woleben, Carubie Rodgers
Some Biogeographers, Evolutionists And Ecologists: Chrono-Biographical Sketches, Charles H. Smith, Joshua Woleben, Carubie Rodgers
DLPS Faculty Publications
Each name in the following list of naturalists is linked to a corresponding capsule "chrono-biographical" sketch of that individual prepared by the authors. Coverage extends from approximately 1950 backward in time as far as the eighteenth century; figures from all over the world are included (though there is admittedly a decided Anglo-American bias). The target subject here is biogeography, but this being a broad field there are many persons on the list who are better known as climatologists, zoologists, botanists, ecologists, oceanographers, paleontologists, etc.--in other words, who made their main reputations in cognate disciplines.
This service has been set up …
Sharing A Vision For Biodiversity Conservation And Agriculture, John E. Quinn
Sharing A Vision For Biodiversity Conservation And Agriculture, John E. Quinn
School of Natural Resources: Faculty Publications
Conservation biology and agriculture share a common landscape and a future that demands novel research and practice. Inevitably, limited resources create conflict in the absence of a shared vision forward. Therefore, given the similarities in proximate and even ultimate goals, we must envision a joint path toward renewable and resilient agroecosystems. In this commentary, I highlight the root of past conflicts and share a vision of progress forward that encompasses mutually beneficial outcomes. I include six areas of anticipatory research and inquiry at the intersection of conservation biology and agriculture to better identify shared goals and facilitate more frequent communication …
Ecology And Behaviour Of The Black-Billed Capercaillie (Tetrao Urogalloides Stegmanni) In The Khentej Mountains, Mongolia, Siegfried Klaus, Karl-Heniz Schindlatz, Alexander V. Andreev, Hans-Heiner Bergmann
Ecology And Behaviour Of The Black-Billed Capercaillie (Tetrao Urogalloides Stegmanni) In The Khentej Mountains, Mongolia, Siegfried Klaus, Karl-Heniz Schindlatz, Alexander V. Andreev, Hans-Heiner Bergmann
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Introduction
A common inhabitant of East Siberian larch forests, the Siberian or black-billed capercaillie (Tetrao urogalloides) ranges south to the limits of the boreal forests in the northern Mongolian mountains and east to the very coast of the Asian continent (KLAUS et al. 1989). Tetrao urogalloides MIDDENDORF (1851) has priority over T. parvirostris BONAPARTE (1856). Therefore, we prefer the T. urogalloides.
The subspecies T.u. stegmanni was first described on the basis of morphological differences by POTAPOV (1985) using specimens collected during Russian expeditions by KOZLOVA (1930). This description was based on 18 males in the collection at …
An Approach To The Virtual Flora Of Mongolia – From A Data Repository To An Expert System, Http://Greif.Uni-Greifswald.De/Floragreif/, Jörg Hartleib, Martin Schnittler, Sabrina Rilke, Anne Zemmrich, Bernd Bobertz, Ulrike Najmi, Reinhard Zölitz, Susanne Starke
An Approach To The Virtual Flora Of Mongolia – From A Data Repository To An Expert System, Http://Greif.Uni-Greifswald.De/Floragreif/, Jörg Hartleib, Martin Schnittler, Sabrina Rilke, Anne Zemmrich, Bernd Bobertz, Ulrike Najmi, Reinhard Zölitz, Susanne Starke
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
FloraGREIF is an internet accessible information system providing taxonomic, phytogeographic and ecological information on Mongolia’s flora in terms of descriptions, high-resolution plant images and an interactive WebGIS application. Organised along an updated checklist of the approx. 3000 Mongolian vascular plants that serves as a taxonomic backbone, information is split into the taxon level, referring to plant species, and the record level, referring to record or a collected plant specimen. At the latter level, images of living plants, scans of herbarium sheets, habitat photos and further notes can be found. Both data levels are linked by the name of the respective …
El Tratado De Libre Comercio Entre Centroamérica, República Dominicana Y Estados Unidos (Cafta-Dr) Y El Desarrollo Desigual, Mary Finley-Brook
El Tratado De Libre Comercio Entre Centroamérica, República Dominicana Y Estados Unidos (Cafta-Dr) Y El Desarrollo Desigual, Mary Finley-Brook
Geography and the Environment Faculty Publications
This paper utilizes geographical and interdisciplinary approaches to analyze changes in human-environment interactions following the Dominican Republic-Central American Free Trade Agreement (DR-CAFTA). It documents spatially and socially uneven patterns of transnational, national and local production and exchange. Negative ecological and social repercussions concentrate among marginalized groups while benefits accrue to regional elite and foreign corporations. Findings from Costa Rica, the Dominican Repblic and Nicaragua build from 2009 and 2010 fieldwork involving interviews with state officials, industry representatives and civil society. Media coverage, governmental and nongovernmental reports, industry data and scholarly articles supplement field sources and demonstrate transitions in Guatemala, Honduras …
The Planet, 2012, Winter, Becky Tachihara, Huxley College Of The Environment, Western Washington University
The Planet, 2012, Winter, Becky Tachihara, Huxley College Of The Environment, Western Washington University
The Planet
No abstract provided.
Defining Earth Smarts: A Construct Analysis For Socioecological Literacy Based On Justly Maintaining Quality Of Life, Bryan H. Nichols
Defining Earth Smarts: A Construct Analysis For Socioecological Literacy Based On Justly Maintaining Quality Of Life, Bryan H. Nichols
USF Tampa Graduate Theses and Dissertations
This paper describes the creation and validation of a new educational construct. Socioecological literacy, or earth smarts, describes the qualities we need to justly maintain or improve our quality of life in a changing world. It was created using construct analysis techniques and systems tools, drawing on an extensive, transdisciplinary body of literature. Concepts related to environmental, ecological and scientific literacy, sustainability and citizenship were combined with educational frameworks, new research in science education, and modern cognitive psychology. After the initial formulation, the results were considered by a variety of experts and professionals from the fields of ecology, environmental science …
Grts And Graphs: Monitoring Natural Resources In Urban Landscapes, Todd R. Lookingbill, John Paul Schmit, Shawn L. Carter
Grts And Graphs: Monitoring Natural Resources In Urban Landscapes, Todd R. Lookingbill, John Paul Schmit, Shawn L. Carter
Geography and the Environment Faculty Publications
Environmental monitoring programs are an important tool for providing land managers with a scientific basis for management decisions. However, many ecological processes operate on spatial scales that transcend management boundaries (Schonewald-Cox 1988). For example, adjacent lands may influence protected-area resources via edge effects, source-sink dynamics, or invasion processes (Jones et al. 2009). Hydrologic alterations outside management units also may have profound effects on the integrity of resources being managed (Pringle 2000). The impacts of climate change are presenting challenges to resource management at local-to-global scales (Karl et al. 2009). This potential disparity between ecological and political boundaries presents an interesting …
The Management Of Feral Pig Socio-Ecological Systems In Far North Queensland, Australia, Gabriela Shuster
The Management Of Feral Pig Socio-Ecological Systems In Far North Queensland, Australia, Gabriela Shuster
Antioch University Dissertations & Theses
The development of management programs for socio-ecological systems that include multiple stakeholders is a complex process and requires careful evaluation and planning. This is particularly a challenge in the presence of intractable conflict. The feral pig (Sus scrofa) in Australia is part of one such socio-ecological system. There is a large and heterogeneous group of stakeholders interested in pig management. Pigs have diverse effects on wildlife and plant ecology, economic, health, and social sectors. This study used the feral pig management system as a vehicle to examine intractable conflict in socio-ecological systems. The purpose of the study was …