Digital Commons Network^™

Effect Of Noxious Stimulation Upon Antipredator Responses And Dominance Status In Rainbow Trout, Paul J. Ashley, Sian Ringrose, Katie L. Edwards, Emma Wallington, Catherine R. Mccrohan, Lynne U. Sneddon

Aquaculture Collection

A potentially painful experience may modify normal behavioural responses. To gauge the importance of pain relative to predation or social status, we presented competing stimuli, a predator cue or an unfamiliar social group, to two groups of noxiously treated rainbow trout, Oncorhynchus mykiss. In the predator cue experiment, fish were classified as bold or shy. Noxiously stimulated fish did not show antipredator responses, suggesting that pain is the imperative. In the social status experiment, noxiously stimulated fish held individually and undisturbed showed an increase in respiration rate and plasma cortisol. As a comparison, we used the dominant or subordinate fish …

Power Plants: Paleobotanical Evidence Of Rural Feasting In Late Classic Belize, Jon B. Hageman, David J. Goldstein

Anthropology Faculty Publications

No abstract provided.

Modeled Red Spruce Distribution Response To Climatic Change In Monongahela National Forest, James Michael Stanton

Theses, Dissertations and Capstones

In Monongahela National Forest of West Virginia, red spruce grows in high-elevation island ecosystems that are particularly sensitive to changes in climatic conditions. The ecological niche modeling application Maxent was used to project the distribution response of red spruce to climatic change for the purposes of conservation planning. Red spruce distribution data was acquired from the United States Forest Service. Three sets of nineteen bioclimatic variables, corresponding to present, 2050, and 2080 conditions, were derived from 1961-1990 monthly temperature and precipitation means and the IPCC A2 emissions scenario of HadCM3. The modeling revealed rapidly diminishing red spruce habitat suitability from …

The Role Of Landscape Connectivity In Assembling Exotic Plant Communities: A Network Analysis, Emily S. Minor, Samantha M. Tessel, Katharina A.M. Engelhardt, Todd R. Lookingbill

Geography and the Environment Faculty Publications

Landscape fragmentation and exotic species invasions are two modern-day forces that have strong and largely irreversible effects on native diversity worldwide. The spatial arrangement of habitat fragments is critical in affecting movement of individuals through a landscape, but little is known about how invasive species respond to landscape configuration relative to native species. This information is crucial for managing the global threat of invasive species spread. Using network analysis and partial Mantel tests to control for covarying environmental conditions, we show that forest plant communities in a fragmented landscape have spatial structure that is best captured by a network representation …

Teacher Perceptions Of Environmental Education: An Exploratory Assessment, Joye Charlotte Marika Cantrell

Theses Digitization Project

The purpose of this study was to initiate an exploratory assessment of teacher knowledge, values, and environmental education practices at a local urban high school to gain general perception of a staff's readiness to yet embrace another teacher certification requirement.

Rio Bravo: A Journal Of Borderlands 2009 V.1 No.2

Rio Bravo: A Journal of the Borderlands

AIDS, Diabetes and Lung Cancer Mortality at the Northern Mexican Border - 1979-1997 / Tim A. Clary -- Shock to the System - Latino Political Trust, Pre- and Post- 9-11 / Diana Evans, Joseph Stewart Jr., Robert D. Wrinkle, and James P. Wenzel -- The Regional Institutionalization of the Texas Rio Grande Valley / Baltazar Arispe y Acevedo, Jr. -- La escritura como terapia de rehabilitación para personas con discapacidad psiquiátrica / Alma Silvia Rodriguez -- Espacio Fronterizo: La Tijuana de Santitos y Peregrinos en Aztlán / Sergio M. Martinez -- El tema de la identidad en La muerte me …

Causes And Impacts Of Salinization In The Lower Pecos River, Christopher W. Hoagstrom

Great Plains Research: A Journal of Natural and Social Sciences (through 2013)

River salinization is a byproduct of water resource development that results from cumulative impacts of flow-regime modifications and crop irrigation. However, historical salinization in the Lower Pecos River is often attributed to natural, high-salinity groundwater. Here, evidence from literature and U.S. Geological Survey gaging stations is reviewed to summarize historical changes associated with water development that potentially contributed to Pecos River salinization. A suite of hydrological changes, initiated in the 1880s, likely contributed to streamflow salinization: (1) reduced flood frequency and magnitude, (2) diminished streamflow, (3) increased evapotranspiration, and (4) increased prevalence of natural, high-salinity groundwater. Salinization is presently highest …

"This Countries Ladies": Gender Negotiations At The Northwest Company, Grand Portage, Andrew E. Labounty

Nebraska Anthropologist

French interactions with Indians during the fur trade were characterized by intermarriage and cultural assimilation. Later, when Canadian traders took over, women were notably present at the Northwest Company s depot at Grand Portage, and participated in its affairs. Although the seasonal workings of Canadian fur trade depots are well-established, gender roles have been typically overlooked in the day-to-day recount of fur trade societies. This paper will thus investigate the aspect of gender at fur trade posts, and particularly at Grand Portage, as a study in cross-cultural negotiations for the fulfillment of gender roles.

Harm Reduction In Outpatient Drug-Free Substance Abuse Treatment Settings, Michael Eversman

Legacy Theses & Dissertations (2009 - 2024)

In the United States, drug-free substance abuse treatment programs generally operate under an abstinence-only, disease model based service orientation. Citing several reasons, critics suggest disease model approaches hinder client utilization and retention within such services. The framework of harm reduction offers an alternative approach to substance abuse treatment services and may have potential for improving utilization and retention outcomes. Yet little is known about how harm reduction is perceived by practitioners in drug-free substance abuse treatment settings, and the circumstances in which harm reduction may or may not be accepted. In addition, despite a body of narrative literature suggesting harm …

Chapter 2: Long-Term Research On Wolves In The Superior National Forest, L. David Mech

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

The seeds for the blossoming of the wolf (Canis lupus) population throughout the upper Midwest were embodied in a long line of wolves that had persisted in the central part of the Superior National Forest (SNF) of northeastern Minnesota, probably since the retreat of the last glaciers. This line of wolves had withstood not only the various natural environmental factors that had shaped them through their evolution but also the logging, fires, market hunting of prey animals, and even the bounties, aerial hunting, and poisoning that had exterminated their ancestors and their dispersed offspring only a few wolf …

Economics And Policy Context For The Biological Management Of Soil Fertility (Bmsf) In Ethiopia, Habtamu T. Kassahun, Charles F. Nicholson, Dawit Solomon, Amy S. Collick, Tammo S. Steenhuis

Agribusiness

Many developing countries implement programs and policies to increase or maintain soil fertility, with the objectives of increased crop yields and decreased poverty. However, few countries give emphasis to the biological management of soil fertility (BMSF) compared to more traditional approaches. Ethiopia emphasizes the use synthetic fertilizers to increase food security and reduce poverty, with little attention to BMSF. This paper examines the long term fertilizer consumption and agricultural productivity response trend and discusses the potential for BMSF to promote agricultural productivity and reduce poverty in Ethiopia. The paper also discusses the Economics and Policy Context for BMSF for the …

Altered Ecological Flows Blur Boundaries In Urbanizing Watersheds, Todd R. Lookingbill, Sujay S. Kaushal, Andrew J. Elmore, Robert Gardner, Keith N. Eshleman, Robert H. Hilderbrand, Raymond P. Morgan, Walter R. Boynton, Margaret A. Palmer, William C. Dennison

Geography and the Environment Faculty Publications

The relevance of the boundary concept to ecological processes has been recently questioned. Humans in the post-industrial era have created novel lateral transport fluxes that have not been sufficiently considered in watershed studies. We describe patterns of land-use change within the Potomac River basin and demonstrate how these changes have blurred traditional ecosystem boundaries by increasing the movement of people, materials, and energy into and within the basin. We argue that this expansion of ecological commerce requires new science, monitoring, and management strategies focused on large rivers and suggest that traditional geopolitical and economic boundaries for environmental decision making be …

The Influence Of Fallback Foods On Great Ape Tooth Enamel, Paul J. Constantino, Peter W. Lucas, James J.-W. Lee, Brian R. Lawn

Biological Sciences Faculty Research

Lucas and colleagues recently proposed a model based on fracture and deformation concepts to describe how mammalian tooth enamel may be adapted to the mechanical demands of diet (Lucas et al.: Bioessays 30[2008] 374-385). Here we review the applicability of that model by examining existing data on the food mechanical properties and enamel morphology of great apes (Pan, Pongo, and Gorilla). Particular attention is paid to whether the consumption of fallback foods is likely to play a key role in influencing great ape enamel morphology. Our results suggest that this is indeed the case. We also consider the implications of …

The Palaeoceanography Of The Leeuwin Current : Implications For A Future World, Karl-Heinz Wyrwoll, Benjamin J. Greenstein, George Kendrick

Arts & Sciences Faculty Publications

Long-term progressive changes of the Leeuwin Current are linked to plate and ocean basin ‘geography’ and Cenozoic global climates and palaeoceanography. Suggestions of the presence of a proto-Leeuwin Current as early as late Middle to Late Eocene times (c. 35–42 Ma) cannot be verified by the fossil record of the western margin of Australia. “Leeuwin Current style” circulation around Australia was certainly established by the early Oligocene, in response to palaeogeographic changes in the Tasman Strait. This, followed by tectonic eorganisation of the Indonesian Archipelago throughout the Miocene, provided a palaeogeographic setting, which by the Pliocene was essentially that of …

Alcoholic Beverage Sales To Underage Buyers In The Commonwealth Of Virginia: Deterrence And Equality, William L. Goodman

Theses & Honors Papers

The Commonwealth of Virginia relies on the Department of Alcoholic Beverage Control (ABC) to enforce laws designed to deter alcohol and cigarette sales to underage persons. ABC employs underage buyers (UAB) who attempt to make controlled purchases of alcoholic beverages and cigarettes.

The primary purpose of this research project is to determine if compliance checks deter alcohol sales to underage persons. Second, this study attempts to find if underage buyer demographics align with state demographics. Finally, this research attempts to determine if businesses are more likely to sell alcohol to underage buyers based on their race, ethnicity, and gender. This …

Wavelet Analysis For Aboveground Biomass Estimate In Temperate Deciduous Forests, Xiaofang Wei

All-Inclusive List of Electronic Theses and Dissertations

The ever-increasing concentration of anthropogenic greenhouse gases (C02, CH4, and CFCs) has been identified as a likely (greater than 90% confidence) cause of the observed increase of global mean temperatures since the mid-20th century (IPCC, 2007). The effect of human-induced climate change could be unprecedented and far-reaching. Carbon sequestration into trees and forests is an effective and inexpensive way for mitigating the C02 level in the atmosphere. Hence, accurate measurement of biomass will be of great importance to global carbon cycle and climate change. This study performed a wavelet-based forest aboveground biomass estimation approach in a temperate deciduous forest, the …

Open And Accessible: The Relationship Between Closures And Circulation In School Library Media Centers., Gail Dickinson, E Cogdell, Karen W. Gavigan

Faculty Publications

No abstract provided.

Time And Complexity In Historical Ecology: Studies In The Neotropical Lowlands, Alf Hornborg

Tipití: Journal of the Society for the Anthropology of Lowland South America

Book review of Time and Complexity in Historical Ecology: Studies in the Neotropical Lowlands. William Balée and Clark L. Erickson, editors. New York: Columbia University Press, 2006. The Historical Ecology Series. xii + 417 pp., maps, figures, tables, notes, references, index. ISBN 0-231-13288-3.

"Sustainable Development": Critical Concepts In Geography, Tyler Vick

Geography Masters Research Papers

This paper reviews significant geographic contributions to academic literature in the arenas of conservation, environmental thought, and "sustainable development", in order to understand why geographers have not been more central contributors to the sustainable development movement. A review of geographic literature reveals no lack of understanding on the "sustainable development" concept. However, the disciplines' contributions are lacking in numbers relative to published articles and in developing research and practical methods for directly benefiting the "sustainable development" movement. In fact, only a handful of geographers have made multiple literary contributions on the topic of "sustainable development."

The discipline of geography is …

Habitat Selection By A Rare Forest Antelope: A Multi-Scale Approach Combining Field Data And Imagery From Three Sensors, Lyndon Estes, G. S. Okin, A. G. Mwangi, H. H. Shugart

Geography

It can be difficult to further scientific understanding of rare or endangered species that live in inaccessible habitat using traditional methods, such as probabilistic modeling based on field data collection. Remote sensing (RS) can be an important source of information for the study of these animals. A key advantage of RS is its ability to provide information over an animal's complete range, but models incorporating RS data are limited by RS's ability to detect important habitat features. In this study, we focus on the rare, poorly-understood mountain bongo antelope (Tragelaphus euryceros isaaci) which survives in the wild in isolated pockets …

The Current State Of Populations Of Diadema Antillarum On Isla Colón In Bocas Del Toro, Panamá, 25 Years After Mass Mortality, Leah T. Ritz

Independent Study Project (ISP) Collection

In January 1983, the worst recorded die-off of any marine animal hit the Caribbean beginning near the mouth of the Panama Canal and eventually wiping out nearly 99% of one of the most important herbivores in coral reef communities, Diadema antillarum—the long-spined sea urchin or Diadema. No populations of Diadema in the Western Atlantic are known to have escaped the drastic population declines. The loss of Diadema throughout the Western Atlantic has had long-lasting impacts on the structure and composition of many types of communities including coral reefs, mangrove roots, sea grass beds, and sand flats. Though the mortality was …

Prospects And Limitations For Ecocultural Tourism In The City: Developing An Urban Heritage Water Trail On The Portage Creek, Eric Mark Kerney

Masters Theses

The decline in Michigan's economy and rapid loss of manufacturing jobs has forced communications to look towards new possibilities. The state's abundant water resources have potential to enhance regional economies and improve the quality of life. The Michigan Heritage Water Trails Program was initiated in 2002 by Michigan Public Act 454 in response to a lack of established routes in the state. The Portage Creek is located within the Kalamazoo River Watershed, which is being explored as a pilot project for a connected system of regional water trails. The study area of the Portage Creek is located entirely within the …

Endnotes Issue 12.2, Cisr Journal

The Journal of Conventional Weapons Destruction

Endnotes Issue 12.2

Urban Containment Policies And Physical Activity A Time–Series Analysis Of Metropolitan Areas, 1990–2002, Semra Aytur, Daniel A. Rodriguez, Kelly R. Evenson, Diane J. Catellier

Health Management & Policy

Background: Urban containment policies attempt to manage the location, character, and timing of growth to support a variety of goals such as compact development, preservation of greenspace, and efficient use of infrastructure. Despite prior research evaluating the effects of urban containment policies on land use, housing, and transportation outcomes, the public health implications of these policies remain unexplored. This ecologic study examines relationships among urban containment policies, state adoption of growthmanagement legislation, and population levels of leisure and transportation-related physical activity in 63 large metropolitan statistical areas from 1990 to 2002. Methods: Multiple data sources were combined, including surveys of …

Factors Influencing Predation On Juvenile Ungulates And Natural Selection Implications, S. M. Barber-Meyer, L. D. Mech

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Juvenile ungulates are generally more vulnerable to predation than are adult ungulates other than senescent individuals, not only because of their relative youth, fragility, and inexperience, but also because of congenital factors. Linnell et al.’s (Wildl. Biol. 1: 209-223) extensive review of predation on juvenile ungulates concluded that research was needed to determine the predisposition of these juveniles to predation. Since then, various characteristics that potentially predispose juvenile ungulates have emerged including blood characteristics, morphometric and other condition factors, and other factors such as birth period, the mother’s experience, and spatial and habitat aspects. To the extent that any of …

The Impact Of Children's Literature On The Environmental Awareness Of A Population Of Second Grade Students, Iris Jackeline Russo

Theses Digitization Project

This project aimed at helping second grade children gain environmental sensitivity and awareness by infusing the existing English Language Arts curriculum with environmental activities. The purpose is to demonstrate how one can infuse the California state's mandated curriculum, Houghton Mifflin, with children's literature in order to promote environmental sensitivity and awareness.

Ecological Literacy, Environmental Attitudes And Behaviors Of Residents Adjacent To The Coahcella Valley Preserve, Kathleen Dawn Fleming

Theses Digitization Project

This thesis aims to address the many processes that guide communication between the public and conservation ecologists, and how one's knowledge of the area around them could affect communcation between groups. This thesis researched the dynamics of ecological literacy levels environmental attitudes and frequency of behaviors of the urban, suburban, and rural sub group residents that live in the Coachella Valley of Southern California. It is relevant to the current strategy for designing multiple species reserves through the development of multiple species habitat conservation plans.

The Denial Of Emergency Protection: Factors Associated With Court Decision Making, Carol E. Jordan, Adam J. Pritchard, Pamela Wilcox, Danielle Duckett-Pritchard

Office for Policy Studies on Violence Against Women Publications

Despite the importance of civil orders of protection as a legal resource for victims of intimate partner violence, research is limited in this area, and most studies focus on the process following a court’s initial issuance of an emergency order. The purpose of this study is to address a major gap in the literature by examining cases where victims of intimate partner violence are denied access to temporary orders of protection. The study sample included a review of 2,205 petitions that had been denied by a Kentucky court during the 2003 fiscal year. The study offers important insights into the …

An Hsus Report: Human Health Implications Of Intensive Poultry Production And Avian Influenza, The Humane Society Of The United States

Impact of Animal Agriculture

The high stocking density, stress, unhygienic conditions, lack of sunlight, and breeding practices typical of industrial poultry and egg production systems may facilitate the emergence and spread of diseases, including highly pathogenic avian influenza viruses with public health implications such as H5N1.

An Hsi Report: Human Health Implications Of Intensive Poultry Production And Avian Influenza, Humane Society International

HSI REPORTS

The high stocking density, stress, unhygienic conditions, lack of sunlight, and breeding practices typical of industrial poultry and egg production systems may facilitate the emergence and spread of diseases, including highly pathogenic avian influenza viruses with public health implications such as H5N1.