Digital Commons Network^™

Virtual Futures: Transfiguring Borders And Transcending Boundaries, Brittany Marie Pickens

Theses and Dissertations from 2017

This project argues that mind uploading and virtual reality are the most likely solutions to the human-driven climate change that will render the Earth unlivable. Drawing on scientific research, the speculations of science fiction, and critical theory, this project first argues that this solution is most probable because it exploits current capitalist trends and does not demand the sacrifice of luxury; concomitantly, it functions as a solution to problems outside of climate change and human survival regarding human health, progress, evolution and [interstellar] exploration. This project further explores: 1) what problems mind uploading could solve and to what extent; 2) …

Water-Based Strategies For Making The Small Beverage Industry In New England More Sustainable And Climate-Change Resilient, Michelle Kozminski

Sustainability and Social Justice

Water is a vital resource to the ecosystem, human life, and the economy. However, it is a limited resource that is threatened by a changing climate. The small beverage industry relies on large amounts of high quality water and is therefore at risk due to the uncertainties of climate change. This paper explores how the small beverage industry in New England approaches water to ensure that the industry is sustainable in the long term. A water threatened brewery in California, Sierra Nevada Brewing Company, is used to determine “best practices.” Three small beverage companies in New England are examined to …

Fire Exclusion And Climate Change Interact To Affect Long-Term Changes In The Functional Composition Of Plant Communities, Daijiang Li, Donald M. Waller

Faculty Publications

© 2017 John Wiley & Sons Ltd Aim: Plant functional traits allow us to mechanistically link changes in species composition to changes in ecosystem functions. Understanding how and why changes occur in functional composition of plant communities can thus help us better conserve and restore biodiversity. We aim to examine long-term effects of fire exclusion and climate change on the functional composition of fire-maintained pine barrens in central Wisconsin. Location: Central Wisconsin, USA. Methods: Using a database that included vegetation data of surveys (1958) and resurveys (2012) of 30 sites, we quantified functional composition (α and β functional diversity, community-weighted …

Using Maximum Entropy Species Distribution Modeling For Long-Term Conservation Planning Of Three Federally Listed Bats In North America, Mitchell L. Meyer

Master's Theses or Doctor of Nursing Practice

We are currently in a sixth mass extinction event in which the extinction rate is higher than it has ever been. This mass extinction event is caused by human influence on the environment. Biodiversity is worth conserving because of its many uses to humans. Bats are a diverse group of mammals that humans rely on for pest control services. The gray bat, northern long-eared bat, and Indiana bat are on the Threatened and Endangered Species List and are in need of conservation. I built species distribution models using occurrence records, climate data, and Maximum entropy (MaxEnt) modeling technique. I predicted …

The Increasing Risk Of Vector-Borne Diseases: Mapping The Effects Of Climate Change And Human Population Density On Future Aedes Aegypti Habitats, Julie Obenauer

Electronic Theses and Dissertations

The Aedes aegypti mosquito is the vector for four infectious diseases of global concern – Yellow Fever, Dengue, Chikungunya, and Zikavirus. Previous attempts to model the expansion of the vector habitat due to global climate change have rarely included characteristics related to the human populations on which this mosquito is dependent. The purpose of this research was to determine whether the inclusion of human population density improves model performance while creating risk maps that can be used to determine where humans are most likely to be exposed to the vector in the future. The resulting model demonstrated that the inclusion …

Direct And Indirect Effects Of Climate Change On Plant Populations And Communities In Sagebrush Steppe, Andrew R. Kleinhesselink

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Rapid climate change presents humanity with a number of big problems. Foremost among these is the sad fact that the climate we will pass on to our children will likely be nothing like the climate that we inherited from our parents. Ecologists have collected solid evidence that climate change has already begun to affect the living things around us and the ecosystems humans depend on. Unfortunately, predicting the future effects of climate change on life on earth is not easy. We focused on three research goals as part of an effort to improve our ability to predict how plants and …

Scene Of A Changing Climate, Mona Nazeri Dr

Graduate Student Portfolios, Professional Papers, and Capstone Projects

For the last 500,000 years, the world climate has been in transition from warm to cold and vice versa. However, recent human-caused climate change has increased the rate of change in extreme and average climate conditions. Globally, people are facing higher than average temperatures as well as accelerated rates of drought and flooding. According to the Intergovernmental Panel on Climate Change (IPCC,) natural systems around the globe are being affected by regional climate change, mainly temperature increases. They IPCC found that 20-30% of plant and animal species are likely to be at increased risk of extinction if global average temperatures …

Growth Of Orbicella Faveolata In La Parguera, Puerto Rico, Darren B. Marshall

HCNSO Student Theses and Dissertations

Reef-building corals are subject to high amounts of stress, including pollution and rising sea surface temperatures due to climate change. These factors can affect the ability of corals to produce their calcium carbonate skeletons. Evaluation of the effects of climate change may be facilitated by evaluation of records of coral skeletal growth over a long period of time. The aim of this study was to evaluate skeletal growth of the coral Orbicella faveolata in La Parguera, Puerto Rico over a 32-year period. For this, 14 Orbicella faveolata core samples were collected from corals at two reefs (1.2 km apart) in …

Dual Environmentalism: Demand Response Mechanisms In Wholesale And Retail Energy Markets, Sarah M. Main

Pace Environmental Law Review

This note argues that a dual jurisdictional approach to demand response programming is better suited to mitigate environmental harms than an “either-or” regulatory model. Through an exploration of FERC’s authority over wholesale demand response, state authority over retail-level demand response, and implications for electricity and capacity markets arising out of the Court’s decision in FERC v. EPSA, this note will offer effective legal mechanisms for mitigating environmental costs, while fostering environmental benefits. The next section of this note analyzes the strengths and weaknesses of state and federal regulatory approaches to demand response in isolation.

Based on this assessment, this note …

Is Addressing Climate Change Women's Work? Political Leadership And The Climate, Isabella Soparkar

Environmental Studies Honors Projects

In an era when climate science is politically controversial, recent polling data shows that American women are more concerned about climate change than their male counterparts. This research uses both voting record analysis and qualitative interviews with legislators to examine whether the observed gender gap on climate change persists among elected political leaders. Linear and logistic regression results show no statistically significant climate change gender gap within legislative voting behavior, and interviews suggest that though women may be more willing to collaborate on climate change policy than men, subtle gender differences are often overridden by partisanship. However, findings suggest that …

The Alpine Vascular Plants Of Baxter State Park, Maine, Usa, Abigail J. Urban, Glen H. Mittelhauser, Matthew Dickinson, N. Rajakaruna

Biological Sciences

We conducted 12 days of field surveys on five mountains over 1100 m in elevation (Katahdin, North Brother, South Brother, Mount Coe, and The Owl) in Baxter State Park (BSP), Maine during the summers of 2013–14. In addition, we examined historic manuscripts, unpublished data, and herbarium records for plant records from the five mountains. Katahdin, the largest and tallest of the five mountains, has a rich history of botanical exploration and we documented 1559 herbarium vouchers that were collected from the mountain, primarily before the mid-1900s. Combining all data sources, we documented 38 families, 87 genera, and 131 taxa of …

Climate Change, Managed Relocation, And The Risk Of Intra-Continental Plant Invasions: A Theoretical And Empirical Exploration Relative To The Flora Of New England, Jesse Bellemare, Bryan Connolly, Dov F. Sax

Biological Sciences: Faculty Publications

The high rate of anthropogenic climate change projected for coming decades and evidence of low migration ability for many species have led researchers to warn of a looming extinction crisis. This threat is expected to be most acute for small-ranged endemic species, which could see novel climatic conditions develop rapidly across the entirety of their limited geographic ranges. To avoid extinctions, some conservationists have proposed that climateimperiled species might be candidates for "assisted colonization" or "managed relocation" to new regions, outside their historical ranges. One major concern related to managed relocation is the possibility that some relocated species could later …

International Environmental Law And American Leadership, Chelsey Davidson

Student Publications

The purpose of this paper is to detail and explore both the ethical and pragmatic implications of aggressive climate change mitigation on a coordinated international level. Particularly, this paper attempts to assess the extent to which the leadership of the United States influences the relative success and failure of international agreements, and the agreements, structures and mechanisms themselves. A secondary assessment is the extent to which the United States has incurred additional responsibilities to mitigate beyond those shared by the world, from both a harm-based and special responsibilities standpoint. In this paper, I will ultimately argue that the United States …

Precipitation Drivers Of Cropping Frequency In The Brazilian Cerrado: Evidence And Implications For Decision-Making, Keith R. Spangler, Amanda H. Lynch, Stephanie A. Spera

Geography and the Environment Faculty Publications

The Amazon basin has been subjected to unprecedented rates of land-use change over the past several decades, primarily as a result of the expansion of agriculture. Enhanced rain forest conservation efforts toward the end of the twentieth century slowed deforestation of the Amazon but, in turn, increased demand for land repurposing in the adjacent Cerrado (savanna) region, where conservation regulations are less strict. To maintain or increase yields while minimizing the need for additional land, agricultural producers adopted a form of intensification in which two rain-fed crops are planted within a single growing season (double cropping). Using 10 years (August …

Zooarchaeology Of The Scandinavian Settlements In Iceland And Greenland: Diverging Pathways, Thomas Mcgovern, Konrad Smairowski, George Hambrecht, Seth Brewington, Ramona Harrison, Megan Hicks, Frank J. Feeley, Brenda Prehal, James Woollett

Publications and Research

The Scandinavian Viking Age and Medieval settlements of Iceland and Greenland have been subject to zooarchaeological research for over a century, and have come to represent two classic cases of survival and collapse in the literature of long-term human ecodynamics. The work of the past two decades by multiple projects coordinated through the North Atlantic Biocultural Organization (NABO) cooperative and by collaborating scholars has dramatically increased the available zooarchaeological evidence for economic organization of these two communities, their initial adaptation to different natural and social contexts, and their reaction to Late Medieval economic and climate change. This summary paper provides …

Hydraulic Mechanisms Of Fungal-Induced Dieback In A Keystone Chaparral Species During Unprecedented Drought In California, Natalie M. Aguirre, Marissa E. Ochoa, Helen I. Holmlund, Frank E. Ewers, Stephen D. Davis

Seaver College Research And Scholarly Achievement Symposium

Between 2012-2016, southern California experienced unprecedented drought that caused dieback in Malosma laurina, a keystone species of chaparral shrub communities. Dieback was especially severe in coastal exposures of the Santa Monica Mountains, leading to whole plant mortality exceeding 50% at some sites. We hypothesized that the endophytic fungus causing the dieback, Botryosphaeria dothidea, was successful in invading the xylem tissue of M. laurina because of protracted water stress, carbon starvation, or a combination of the two. We tested these possibilities in a controlled pot experiment by comparing three treatments, each inoculated with the fungus: (1) irrigated controls (2) …

Carbon Sequestration By Australian Tidal Marshes, Peter I. Macreadie, Q. R. Oliver, J. J. Kelleway, Oscar Serrano, P. E. Carnell, C. J. Ewers Lewis, T. B. Atwood, J. Sanderman, J. Baldock, R. M. Connolly, C. M. Duarte, Paul Lavery, A. Steven, C. E, Lovelock

Research outputs 2014 to 2021

Australia’s tidal marshes have suffered significant losses but their recently recognised importance in CO2 sequestration is creating opportunities for their protection and restoration. We compiled all available data on soil organic carbon (OC) storage in Australia’s tidal marshes (323 cores). OC stocks in the surface 1 m averaged 165.41 (SE 6.96) Mg OC ha − 1 (range 14 – 963 Mg OC ha − 1). The mean OC accumulation rate was 0.55 ± 0.02 Mg OC ha − 1 yr − 1. Geomorphology was the most important predictor of OC stocks, with fluvial sites having twice the stock of OC …

Quantifying The Short-Term Dynamics Of Soil Organic Carbon Decomposition Using A Power Function Model, Weiping Zhou, Jinhong He, Dafeng Hui, Weijun Shen

Biology Faculty Research

Introduction

Soil heterotrophic respiration (R _h, an indicator of soil organic carbon decomposition) is an important carbon efflux of terrestrial ecosystems. However, the dynamics of soil R _h and its empirical relations with climatic factors have not been well understood.

Methods

We incubated soils of three subtropical forests at five temperatures (10, 17, 24, 31, and 38 °C) and five moistures (20, 40, 60, 80, and 100% water holding capacity (WHC)) over 90 days. R _h was measured throughout the course of the incubation. Three types of models (log-linear, exponential, and power model) were fitted to the measurements …

Rethinking Our Global Coastal Investment Portfolio, Erin Mccreless, Michael W. Beck

Journal of Ocean and Coastal Economics

Coastal gray infrastructure, including roads, bridges, and buildings, is critical for communities, and we invest significantly in it. We also invest in the restoration and maintenance of coastal green infrastructure such as wetlands and reefs, which provide many services and benefits to human communities. However, the relative scale of financial investments in different coastal sectors – that is, our global coastal investment portfolio – remains poorly understood. We identify some of the major sources of funding for coastal green and gray infrastructure globally, including international aid funds; US public and private funds for coastal conservation, restoration and management; and private …

Mass Coral Mortality Under Local Amplification Of 2 °C Ocean Warming, Thomas M. Decarlo, Anne L. Cohen, George T. F. Wong, Kristen A. Davis, Pat Lohman, Keryea Soong

OES Faculty Publications

A 2 °C increase in global temperature above pre-industrial levels is considered a reasonable target for avoiding the most devastating impacts of anthropogenic climate change. In June 2015, sea surface temperature (SST) of the South China Sea (SCS) increased by 2 °C in response to the developing Pacific El Nino. On its own, this moderate, short-lived warming was unlikely to cause widespread damage to coral reefs in the region, and the coral reef "Bleaching Alert" alarm was not raised. However, on Dongsha Atoll, in the northern SCS, unusually weak winds created low-flow conditions that amplified the 2 °C basin-scale …

Environmentally Friendly Industries: An Examination Of Ecotourism As The Solution To The Environmental Degradation Caused By The International Tourism Industry, Whitney Michael

Honors Theses – Charlotte Campus

The increasing visibility of ecological alterations due to global climate change have required high-impact industries to reexamine their environmental impact. Transnational organizations such as the United Nations have identified the current management practices of the international tourism industry as a significant contributing factor to global warming. The high volume implications of the large-scale establishments necessary to lodging facilities in the tourism trade are responsible for damages such as resource depletion and pollution. Existing levels of environmental impact show irreparable and imminent damage to the world environment if current methods of the industry are allowed to continue.

New trends in consumer …

Will Seasonally Dry Tropical Forests Be Sensitive Or Resistant To Future Changes In Rainfall Regimes?, Kara Allen, Juan Manuel Dupuy, Maria G. Gei, Catherine Hulshof, David Medvigy, Camila Pizano, Christina M. Smith, Annette Trierweiler, Skip J. Van Bloem, Bonnie G. Waring, Xiangtao Xu, Jennifer S. Powers

Publications

Seasonally dry tropical forests (SDTF) are located in regions with alternating wet and dry seasons, with dry seasons that last several months or more. By the end of the 21st century, climate models predict substantial changes in rainfall regimes across these regions, but little is known about how individuals, species, and communities in SDTF will cope with the hotter, drier conditions predicted by climate models. In this review, we explore different rainfall scenarios that may result in ecological drought in SDTF through the lens of two alternative hypotheses: 1) these forests will be sensitive to drought because they are already …

Climate Warming Can Accelerate Carbon Fluxes Without Changing Soil Carbon Stocks, Susan E. Ziegler, Ronald Benner, Sharon A. Billings, Kate A. Edwards, Michael Philben, Xinbiao Zhu, Jerome Laganière

Faculty Publications

Climate warming enhances multiple ecosystem C fluxes, but the net impact of changing C fluxes on soil organic carbon (SOC) stocks over decadal to centennial time scales remains unclear. We investigated the effects of climate on C fluxes and soil C stocks using space-for-time substitution along a boreal forest climate gradient encompassing spatially replicated sites at each of three latitudes. All regions had similar SOC concentrations and stocks (5.6 to 6.7 kg C m−2). The three lowest latitude forests exhibited the highest productivity across the transect, with tree biomass:age ratios and litterfall rates 300 and 125% higher than those in …

Adaptation To Heat Stress Reduces Phenotypic And Transcriptional Plasticity In A Marine Copepod, Morgan W. Kelly, M. Sabrina Pankey, Melissa B. Debiasse, David C. Plachetzki

Faculty Publications

© 2016 The Authors. Functional Ecology © 2016 British Ecological Society Organisms may respond to changing environments through phenotypic plasticity or adaptive evolution. These two processes are not mutually exclusive and may either dampen or strengthen each other's effects, depending on the genetic correlation between trait values and the slopes of their norms of reaction. To examine the effect of adaptation to heat stress on the plasticity of heat tolerance, we hybridized populations of the crustacean Tigriopus californicus that show divergent phenotypes for heat tolerance. We then selected for increased heat tolerance in hybrids and measured heat tolerance and the …

The Early Birds And The Rest: Do First Nesters Represent The Entire Colony?, Jón Einar Jónsson, Smári J. Lúðvíksson, Michael D. Kaller

Faculty Publications

Climate change studies have detected earlier spring arrival of breeding birds. However, first nest dates (date first nests were found), which commonly provide the metric for earlier arrival, can be biased by population size or sampling effort. Our aims were to determine if: 1) first nest dates and median nest date (date when at least 50 % of all females have nested) were equivalent predictors for the spring arrival and 2) first nest date or median nest date were related to nest numbers. We recorded first and median nest dates and nest numbers at the common eider (Somateria mollissima) colony …

Climate-Related Risks And Management Issues Facing Agriculture In The Southeast: Interviews With Extension Professionals, David C. Diehl, Nicole L. Sloan, Elder P. Garcia, Sebastian Galindo-Gonzalez, Daniel R. Dourte, Clyde W. Fraisse

Journal of Extension

To explore Extension professionals' perceptions of the potential impact of climate variability and climate change on agriculture and to identify the top climate-related issues facing farmers, we conducted interviews with agricultural Extension personnel from Alabama, Florida, Georgia, and South Carolina. Of those interviewed, 92% believed climate change will affect agriculture a moderate amount or a great deal. Qualitative analyses revealed that the Extension professionals considered scarcity of water resources, temperature fluctuations, pest and disease pressures, forecast challenges, seasonal variability, and adaptation strategies as among the most important climate-related issues affecting agriculture in the Southeast.

Ozone Depletion, A Big Threat To Climate Change: What Can Be Done?, Sumera Aziz Ali, Savera Aziz Ali, Nadir Suhail

Community Health Sciences

Ozone in the stratosphere is very important as it acts as a safeguard for the earth and protects life from harmful ultraviolet radiations coming from the sun. Depletion of stratospheric ozone, resulting from atmospheric pollution has led to increased ultraviolet radiation at the earth’s surface as well as spectral shifts to the more biologically damaging shorter wavelengths. A decrease in the concentration of stratospheric ozone enhances the solar ultraviolet (UV) radiation, which is harmful to the growth of the plant and various other metabolic processes of the organisms and might cause changes in pigment concentrations, nucleic acids, and proteins. Multiple …

Susceptibility Of United States Ski Resorts To The Effects Of Climate Change, Greyson M. Butler

Atlas of Maine

Across large regions of North America, warming global temperatures are expected to detrimentally reduce mountain snowpack accumulation and duration during the winter months. Mountain resorts are reliant on snowpack to generate a significant portion of their income through the ski industry. By 2100, experts have predicted that many alpine ski resorts could lose up to 70% of natural snow cover, leaving many resorts needing to turn to expensive, artificial snowmaking to supplement natural snowfall.

This study attempts to model the potential impact climate change will have on US ski resorts’ abilities to generate snowpack during the winter months in 2070 …

Temporal Migration Shifts In The Aransas-Wood Buffalo Population Of Whooping Cranes (Grus Americana) Across North America, Joel G. Jorgensen, Mary Bomberger Brown

School of Natural Resources: Faculty Publications

Birds are altering the phenology of critical life history events, including migration, in response to the effects of global climate change. Whooping Cranes (Grus americana) are one of the most critically endangered birds in the world. Their remnant population, referred to as the Aransas-Wood Buffalo Population, numbers between 300-400 individuals and migrates between the U.S. Gulf of Mexico coast and north-central Canada twice each year. Previous analyses suggested Whooping Crane migration was temporally constant in spring and fall. New analyses of observations spanning 1942-2016 show Whooping Crane migration is now occurring earlier in spring by approximately 22 days …

Climate Change Refugia And Habitat Connectivity Promote Species Persistence, Toni Lyn Morelli, Sean P. Maher, Marisa C.W. Lim, Christina Kastely, Lindsey M. Eastman, Lorraine E. Flint, Alan L. Flint, Steven R. Beissinger, Craig Moritz

College of Natural and Applied Sciences

Background: Climate change refugia, areas buffered from climate change relative to their surroundings, are of increasing interest as natural resource managers seek to prioritize climate adaptation actions. However, evidence that refugia buffer the effects of anthropogenic climate change is largely missing. Methods: Focusing on the climate-sensitive Belding's ground squirrel (Urocitellus beldingi), we predicted that highly connected Sierra Nevada meadows that had warmed less or shown less precipitation change over the last century would have greater population persistence, as measured by short-term occupancy, fewer extirpations over the twentieth century, and long-term persistence measured through genetic diversity. Results: Across California, U. beldingi …