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Land Use Intensification And Bio-Resource Utilisation In The South Pacific Islands, David Lopez Cornelio

International Journal of Islands Research

The long and gradual colonisation of the Pacific islands created settlements of cohesive social networks that fused or were displaced by western ways of life, trade and governance through the centuries. In this paper, a historical review of the processes of island discovery, plants domestication, and of land use practices are discussed alongside the main socioeconomic drivers of land cover change. The native trees of the South Pacific constitute an invaluable resource for sustainable development; they were used and domesticated for thousands of years but logging, commercial agriculture, mining, the introduction of exotic species and urban expansion are threatening them …

Sub-Stage Climatic Shifts During Mis 11 Refined From Diatom Assemblage Reconstruction In The Valles Caldera, New Mexico, Savannah Cutler

Earth and Planetary Sciences ETDs

Diatom assemblage reconstruction from the Valles Caldera sediment core (VC-3) was utilized to infer climatic and aquatic changes during a 50-thousand-year [ka] period in the Mid-Pleistocene (435-385 ka). This 50 ka interval spans most of Marine Isotope Stage 11 (MIS 11) – one of the most prominent interglacials of the past 500 ka – and is widely considered an analog for the Holocene and future climate regimes. Nearly all records from MIS 11 are either marine or ice-core based, making VC-3 unique among lacustrine sediment records as it captures insolation variations and climatic changes during the mid-Pleistocene. Analysis of the …

Precipitation Seasonality Amplifies As Earth Warms, Xiaoyu Wang, Ming Luo, Fengfei Song, Sijia Wu, Yongqin David Chen, Wei Zhang

Plants, Soils, and Climate Faculty Publications

Precipitation exhibits a pronounced seasonal cycle, of which the phase and amplitude are closely associated with water resource management. While previous studies suggested an emerged delaying phase in the past decades, whether the amplified amplitude has emerged is controversial. Using multiple observational data sets and climate simulations, here we show that the amplification of precipitation annual cycle has emerged in most global land areas since the 1980s, especially in the tropics. These amplifications are mainly driven by anthropogenic emissions, and will be further intensified by 17.6% in the future (2081–2100) under high emission scenario (Shared Socioeconomic Pathways, SSP585), and limited …

Anthropaean Storytelling, Community, And The Ripples Of The Climate Crisis, Jonathan Summers

Undergraduate University Honors Capstones

The climate crisis has grown into a dangerous global threat, pushing our planet to the point of ecological no return. We face the certainty of increasingly destructive climate disasters and social upheaval, threatening our societal and biological survival. The next few years will prove critical to the future welfare of our species and our planet. However, we are not without our defenses. Through the lens of fictional short stories, this capstone concentrates on community and storytelling, two deeply human behaviors that could be two of our greatest tools in the struggle against climate change. Human beings are social creatures at …

An Anthropogenic Mass Extinction: Speculation About The Future Of Humanity And Other Species, Grace M. Nelson

Student Theses 2015-Present

This thesis will address the possibility of a sixth mass extinction at the hands of humanity and the adaptations ecosystems may undertake in recovery. Today, the world is witnessing incredibly fast changes in climate conditions that are causing severe biodiversity loss. Haiti is a region that encompasses the impacts of both environmental degradation and humanity’s social influences on the environment. Haiti will be examined throughout this thesis to provide an understanding of how climate change impacts people and the natural world today. Non-anthropogenic rapid climate change is the root of most past mass extinctions. However, after these events, ecosystems have …

Reef Ecosystem Conservation For The Hawaiian Islands: The Impacts Of Ocean Warming And Acidification On Benthic Reef Populations, Samantha Roberts

Student Theses 2015-Present

This paper explores the anthropogenic effects of rapid climate change and ocean acidification on benthic coral populations along the Hawaiian archipelago. Moreover, the reliance of Hawaiian coastal communities on coral reefs for sustenance and economic prosperity is evaluated to determine the importance of reef ecosystem conservation for the prosperity of Hawaii. Chapter 1 introduces the importance of coral and supplies quantitative data on declining coral populations traditional to Hawaii, as a result of ocean warming and acidification. Empirical data from prior, prominent studies, combined with my own, will be discussed. Chapter 2 outlines the ecology of Hawaiian reef ecosystems, the …

Ancient Wisdom, Modern Prosperity: Harnessing Traditional Ecological Knowledge To Revitalize Australia's Economy, Environment, And Human Wellbeing, Annabelle L. Baulch

Student Theses 2015-Present

This paper explores the traditional knowledge of Australia’s Indigenous people and how it can improve Australia's environment, health, and economic prosperity to shape a more sustainable future. Indigenous Australians managed the land for thousands of years; however, being forced off the land following European colonization resulted in terrible cultural, social, and environmental disruption for Aboriginal Australians and made conservation efforts difficult. Wildfires, imported species, mining, and agriculture is steadily destroying the Australian ecosystem, contributing to climate change, species extinction, and gaps in our cultural and ancestral knowledge. Chapter One overviews Australia's environmental issues; it uses quantitative data to explore the …

Climate Change And Environmental Crises In Coastal Cities: Charleston Vs New York City, Nolan Rodriguez

Student Theses 2015-Present

This paper addresses the increasing vulnerability that coastal communities face regarding climate crises and rising sea levels. Specifically, this paper investigates the environmental crises facing Charleston, South Carolina, and New York City. The geographical location of these cities places a more severe threat upon their environment, as opposed to urban collectives removed from the immediate effect of rising sea levels. A cross-examination of politics and economics is discussed in order to determine the causal relationship of each city’s engagement with its surrounding environment. This paper examines how each city is affected by climate change, what measures are in place to …

Using Multi-Scale Spatial Models Of Dendritic Ecosystems To Infer Abundance Of A Stream Salmonid, Xinyi Lu, Yoichiro Kanno, George P. Valentine, Jacob M. Rash, Mevin B. Hooten

Mathematics and Statistics Faculty Publications

1. Understanding patterns of species abundance is essential for planning landscape-level conservation. The complex hierarchies of dendritic ecosystems result in different levels of heterogeneity at distinct geographic scales. Species responses to dynamic environmental drivers may also vary spatially depending on their interactions with landscape features. Monitoring abundance by explicitly quantifying their spatial and temporal variation is important for strategic management.

2. We analysed brook trout (Salvelinus fontinalis) count data collected from 173 sites in western North Carolina between 1989 and 2015. We developed a Bayesian hierarchical model that used single- and multi-pass electro-fishing data and characterized their respective …

Trophic Stability And Change Across A Sea Ice Cover Gradient On The Western Antarctic Peninsula, A. W. Galloway, Julie Schram, A. T. Lowe, R. Whippo, S. Heiser, K. Iken, J. B. Mcclintock, A. G. Klein, M. O. Amsler, C. D. Amsler

Faculty, Staff, and Students

The western Antarctic Peninsula (AP) is experiencing significant changes to sea ice cover, altering the macroalgal cover and potentially affecting the foundation of benthic food webs. We used fatty acid signatures as dietary and physiological trophic biomarkers to test the hypothesis that a gradient of 36-88% mean annual ice cover would affect the trophic ecology of fleshy macroalgae and diverse benthic invertebrate consumers along the western AP. We used SCUBA to collect organisms from benthic rocky nearshore habitats, 5-35 m depth, at 15 study sites during April-May of 2019. There were no consistent ecosystem-scale differences in the nutritionally important polyunsaturated …

Relationship Between Marine Heatwaves And Diadema Antillarum Settlement In The Florida Keys, David Ogando Jr.

Theses, Dissertations and Culminating Projects

Ocean warming can have profound impacts on benthic marine invertebrates through direct physiological effects. Yet, the impacts of ocean warming on the long-spined sea urchin (Diadema antillarum), a keystone grazer on western Atlantic and Caribbean coral reefs, has received little attention. In the summer of 2023, the Caribbean basin experienced a strong marine heatwave event with sea temperatures ~1–3°C above average and the warmest on record in southern Florida. An ongoing field settlement sampling program for D. antillarum in the Florida Keys provided an opportunity to examine the correlative relationship between thermal exposure and larval settlement. Thermal exposure was quantified …

How Does Hummock Creation In Submerging Salt Marshes Alter Nitrous Oxide Fluxes?, Juliette Doyle

Honors Scholar Theses

Climate change is altering ecosystems and the services they provide. Salt marsh ecosystems typically protect coastal areas and filter nitrogen out of water, but are rapidly submerging due to rising sea levels and human development that prevents landward migration. Recent restoration efforts to preserve salt marshes attempt to build elevation capital and promote vegetation and animal habitat, but it is unclear how such efforts affect salt marsh biogeochemistry and dynamics of nitrous oxide, a potent greenhouse gas. To better understand how adding sediment to submerging salt marshes may alter nitrous oxide fluxes, I leveraged a salt marsh hummock creation experiment …

Characterization Of The Role Of Tobacco Deacetylase Enzyme Sip-428 In Mediating Environmental Stress, Zahra Barati

Electronic Theses and Dissertations

Abiotic stress poses a significant threat to crop productivity and food security. In this study, we focused on understanding the role of SIP-428, a SABP2-interacting protein, in mediating plant responses to environmental stresses. Transgenic tobacco plants overexpressing SIP-428 were subjected to salinity and drought stress. The overexpression of SIP-428 led to diminished growth under both stress conditions, indicating a negative impact on stress tolerance. Specifically, SIP-428 overexpression resulted in a reduction in catalase activity, while peroxidase activity remained unaffected. These findings suggest that SIP-428 plays a negative regulatory role on the catalase activity during abiotic stress, which may contribute to …

The Abyss Of Abundance: Consumer Overconsumption And The Road To Environmental Collapse, Emma Vega

Student Theses 2015-Present

The pattern of consumer overconsumption, fueled by relentless economic growth and the internal desire for material goods, has emerged as a prominent driver of environmental degradation, pushing our planet to collapse. This paper examines the cause-and-effect relationships between consumer behavior and its catastrophic environmental implications. By unraveling the root causes of overconsumption and its detrimental effects, this study attempts to underscore the urgency of immediate action to prevent irreversible environmental collapse. Chapter 1 will discuss the problem of consumer overconsumption, including an analysis of the detrimental environmental effects of our current consumption levels to highlight why the issue of consumer …

Cascading Crises: Climate Change And K-12 Education, Matt Ridenour

Northwest Journal of Teacher Education

In this special issue of the Northwest Journal of Teacher Education, Richard Sawyer and I (the co-editors) examine a few of these consequences of climate change on the field of education. Specifically, we focus on teacher educators’ discussion of their work with their preservice students to understand and make a positive impact on climate justice education. All of the articles in this special issue take a realistic yet guardedly hopeful stance to the possibilities for climate justice.

Snow Avalanches Are A Primary Climate-Linked Driver Of Mountain Ungulate Populations, Kevin S. White, Eran Hood, Gabriel J. Wolken, Erich H. Peitzsch, Yves Bühler, Katreen Wikstrom Jones, Chris T. Darimont

Faculty, Staff, and Students

Snow is a major, climate-sensitive feature of the Earth’s surface and catalyst of fundamentally important ecosystem processes. Understanding how snow influences sentinel species in rapidly changing mountain ecosystems is particularly critical. Whereas effects of snow on food availability, energy expenditure, and predation are well documented, we report how avalanches exert major impacts on an ecologically significant mountain ungulate - the coastal Alaskan mountain goat (Oreamnos americanus). Using long-term GPS data and field observations across four populations (421 individuals over 17 years), we show that avalanches caused 23−65% of all mortality, depending on area. Deaths varied seasonally and were directly linked …

Estimating Changing Marshland Habitat And Conservation Potential For Diamondback Terrapins In New Jersey Under Climate Change And Development Pressures, Jacqueline Ganter

STEM Student Research Symposium Posters

The diamondback terrapin, a brackish water turtle native to the eastern US, is listed as a species of ‘special concern’ in the state of New Jersey, due to decreasing habitat from development and changing climatic conditions. Diamondback terrapins reside in saline marshes and wetlands and nest in sandy substrate, primarily beaches and dunes, in June and July. The state of New Jersey is vulnerable to both sea level rise, leaving diamondback terrapin habitats and nesting areas at risk of inundation under future climate scenarios, and, as the most densely populated state, subject to continual development pressures on potentially conservable land. …

“I Cannot Bring A Child Into This World”: Hearing And Writing I Poems With Birthstrike Testimonials, Leola Meynell

The Qualitative Report

BirthStrike for Climate was a UK-based movement whose members “striked” against having children, to demonstrate the desperate need for political action on climate change. In this article, I engage with the Listening Guide (Gilligan & Eddy, 2017) to hear, trace and construct “I poems” with BirthStrike members’ testimonial statements, which were published online between 2019-2020. My analysis focusses on how BirthStrike stories articulate the psychosocial impacts of climate change, particularly in relation to questions about having (and not having) children in times of environmental and social crises. I provide an iteration of how the Listening Guide can be applied to …

Centering Community And Joy Through Co-Production: Tracking The Seasonal Changes Of Utqiaġvik’S Spring Whaling, Kimberly Kivvaq Pikok

Arctic and Northern Studies

Using mixed methods and multimedia approaches, I investigated the multigenerational perspectives and seasonal changes in Utqiaġvik’s spring whaling. As an Iñupiaq living in my home community of Utqiaġvik, it was important to me to center my community’s knowledge and Iñupiaq-led entities. I used various tools and resources such as conducting semi-directed interviews, hiring a local Iñupiaq videographer to take photos and videos of spring whaling preparations, and using observational data from the Alaska Arctic Observatory and Knowledge Hub. The interviews, conversations with local Iñupiat-led entities and whalers, and the observational data guided my research goals and objectives and, more importantly, …

Climate Zoning, Christopher Serkin

Notre Dame Law Review

As the urgency of the climate crisis becomes increasingly apparent, many local governments are adopting land use regulations aimed at minimizing greenhouse gas (GHG) emissions. The emerging approaches call for loosening zoning restrictions to unlock greater density and for strict new green building codes. This Article argues that both approaches are appropriate in some places but not in others. Not all density is created equal, and compact multifamily housing at the urban fringe may actually in-crease GHG emissions. Moreover, where density is appropriate, deregulation will not necessarily produce it. And, finally, green building codes will increase housing costs and so …

Bacterial And Viral Co-Infections In Aquaculture Under Climate Warming: Co-Evolutionary Implications, Diagnosis, And Treatment, S Vega-Heredia, I Giffard-Mena, M Reverter

School of Biological and Marine Sciences

Climate change and the associated environmental temperature fluctuations are contributing to increases in the frequency and severity of disease outbreaks in both wild and farmed aquatic species. This has a significant impact on biodiversity and also puts global food production systems, such as aquaculture, at risk. Most infections are the result of complex interactions be - tween multiple pathogens, and understanding these interactions and their co-evolutionary mechanisms is crucial for developing effective diagnosis and control strategies. In this review, we discuss current knowledge on bacteria-bacteria, virus-virus, and bacterial and viral co-infections in aquaculture as well as their co-evolution in the …

Changes In Reef Tourism’S Adaptive Capacity After Severe Climate Disturbances, Henry Bartelet, Michele Barnes, Lalu Bakti, Graeme S. Cumming

Quantitative Methods and Information Technology Faculty Publications

Knowledge about adaptive capacity and its determinants has increased significantly over the last decade. However, most research on adaptive capacity has been static, not considering how adaptive capacity might change over time, particularly after severe disturbances. We studied the adaptive capacity dynamics of Asian-Pacific reef tourism operators affected by coral bleaching and tropical cyclones compared with a control group with non-affected operators. We found that impacts from tropical cyclones were associated with frequent changes in adaptive capacity. Notably, we found a reduction in tangible attributes (assets and flexibility) of adaptive capacity, whereas intangible attributes (agency and social organization) increased. Our …

Predicting The Potential Distribution Of Pseudococcus Longispinus (Targioni-Tozzetti) (Hemiptera: Pseudococcidae) In South Korea Using A Climex Model, Su Bin Kim, Soo-Jung Suh

Insecta Mundi

Pseudococcus longispinus (Targioni-Tozzetti) (Hemiptera: Pseudococcidae) is a widely-distributed pest that feeds on many economically important hosts, particularly tropical fruits and ornamentals. The potential distribution of this mealybug pest in South Korea remains a primary concern because of its high incidence of interceptions screened during inspection. Hence, this species prompted a modelling effort to assess its potential risk of introduction. Potential risk maps were developed for this pest with a CLIMEX model based on occurrence records under environmental data. The potential distribution of these pests in South Korea in the 2020s, 2050s and 2090s was projected based on the RCP 8.5 …

We Need A Solid Scientific Basis For Nature-Based Climate Solutions In The United States, Kimberly A. Novick, Trevor F. Keenan, William R L Anderegg, Caroline P. Normile, Benjamin R K Runkle, Emily E. Oldfield, Gyami Shrestha, Margaret E K Evans, Dennis D. Baldocchi, James T. Randerson, Jonathan Sanderman, Margaret S. Torn, Anna T. Trugman, Christopher A. Williams

Geography

Opinion piece mapping the many challenges and variables around nature-based climate solutions (NbCS) in the United States, and the need to pinpoint large-scale strategies that will lead to significant, durable, and measurable net climate cooling. They must do so without simply displacing emissions to other locations.

Seasonal Variability In Peak Flow Of Maine Rivers, Brianna L. Benson, Salfa Hendrix, Christopher Houdeshell, Emma Mae Hovencamp, Kaylee M. Perron, Wyeth Bird Purkiss

Research Learning Experiences (RLEs)

Questions and Hypotheses

• How has the timing of peak flow changed over time? ○ Hypothesis: Peak flow has moved earlier in the spring due to a warming climate melting snow earlier.

• How has the variation of flow changed over time?

○ Hypothesis: Flow has grown more

variable in more recent years due to an increase in more variable precipitation patterns, especially in the spring months.

Regional Differences Of Climate Change In Maine: Flow Rates, Precipitation, And Snowpack, Caitlyn Rose Daigle, Alex James Debo, Jason Daniel Moore, Lucky Mourredes, Cara Wren Perry, Eme L. Saverese, Kennedy Grace Todd, Sophia Lydia Winters

Research Learning Experiences (RLEs)

● Maine winters are changing rapidly, associated with changes in climate.

● These climate-linked changes are implicated in flooding, changes in snowpack, and changes in flow regimes in Maine.

● In this study, four different regions in Maine were analyzed to evaluate changes over time in snowpack, river ice, fall-through-spring precipitation,February Snowpack water equivalent

Zooplankton Sensitivity To Climate-Driven Conditions In High-Elevation Lakes In Maine, Sadie Gray, Rachel Hovel

Student Scholarship

Lakes respond to climatic change with shifts in seasonality, stratification, primary production, biological community composition, and other conditions. Compared to larger lower-elevation lakes, “mountain” lakes are hypothesized to be more sensitive to some aspects of climatic change (e.g. watershed inputs from precipitation), but more buffered from others (e.g. snowpack stabilizing ice phenology). In this study of nine high-elevation lakes in the western Maine mountains, we evaluated the relationship between climate-linked lake conditions and zooplankton abundance and community composition. Water temperature, dissolved oxygen, chlorophyll concentration, ice breakup date, secchi disk depth, and zooplankton abundance and taxonomic identification were collected from these …

The Plant Disease Triangle Facing Climate Change: A Molecular Perspective, Charles Roussin-Léveillée, Christina A. M. Rossi, Christian Castroverde, Peter Moffett

Biology Faculty Publications

No abstract provided.

Wrack Lines Volume 24, Number 1, Spring/Summer 2024, Gract Cajski, Paul Choiniere, Maggie Cozens, Owen Placido, Judy Benson

Wrack Lines

"Natural Effects: Tales of Our Dynamic Environment" is the theme of this issue, with articles about a research project using GoPro cameras on oyster cages; the exploding population of black sea bass in Long Island Sound; three research projects in Connecticut salt marshes; a children's book illustrator and author and her book about kelp farming; and a living shoreline project in Old Saybrook, CT.

Executive Actions To Ensure Safe And Responsible Ocean Carbon Dioxide Removal Research In The United States, Romany M. Webb, Korey Silverman-Roati

Sabin Center for Climate Change Law

This paper presents recommended actions that federal agencies could take, under existing law, to ensure safe and responsible permitting and regulation of ocean carbon dioxide removal (CDR) research in U.S. waters. Controlled field trials and other in-ocean research is critical to improve scientific and societal understanding of ocean CDR techniques that could help the U.S. reach its climate goals. That could raise a host of legal issues, however. Existing legal frameworks were not designed to regulate ocean CDR, and federal agencies have yet to fully explain how decades-old environmental laws will be applied to a new set of activities. This …