Physical Sciences and Mathematics Commons^™

Assessment Of Historical Climate Variability In Maine With Implications For Future Agricultural Productivity And Adaptation, Carly Frank

Electronic Theses and Dissertations

Climate change is a wicked problem with global impacts, one of which being the sustainability of the existing global food system. As temperatures and variability in precipitation are projected to increase, the challenges to agriculture are expected to intensify. This thesis examines the Maine historical climate record over the growing season, in combination with future projections, to assess how conditions have changed and will change with agricultural implications. In this analysis, relevant climatic variables are analyzed, and agriculture-significant measures are derived for Maine’s three climate divisions using four decades of daily and monthly gridded datasets. In addition, this thesis explores …

Debe Ser Dirigida: Theories Of Community Organizing For Research Management In The Context Of Rural Ecuador, Meghan Edwards

Student Symposium

This research analysis and literature review discusses the factors that mobilize individuals to take an active role in community-led resource management. After reviewing major contemporary theories of resource management such as Elinor Ostrom's polycentric theory, CPR theories, and Arnstein's ladder, the essay then applies these theories to the context of the Quijos Valley in Ecuador, where the author conducted informal interviews with community members both involved and not-involved in managing fragile soil ecosystems. The literature review considers the idea that individuals are more likely to take an active role in research management when there are strong community bonds, and highlights …

Los Impactos Del Cambio Climático En Las Comunidades Aymaras En Putre, El Valle De Azapa Y Arica, Lindsey Kaufman

Independent Study Project (ISP) Collection

Research Question: How is climate change affecting Aymara communities in Putre, the valley of Azapa, and Putre?

Objectives: To understand the effects of climate on communities by 1) describing which environmental problems exist and their impact on agriculture and ranching, 2) understanding the patterns of migration away from the ancestral land, 3) exploring the connections to the social determinants of health that exist with these change, and 4) analyzing the significance of these changes in the agriculture for the communities’ traditions and connection to the land.

Background: Aymara communities have historically inhabited agricultural and ranching lands in …

Water Use Governance In A Temperate Region: Implications For Agricultural Climate Change Adaptation In The Northeastern United States, Rachel E. Schattman, Meredith T. Niles, Hannah M. Aitken

College of Agriculture and Life Sciences Faculty Publications

Climate change and access to water are interrelated concerns for agriculture and other sectors, even in temperate regions. Governance approaches and regulatory frameworks determine who has access to water, for what purpose, and when. In the northeastern United States, water governance has historically been conducted by states through a combination of statutory guidance and common law. However, it is unclear what effect if current governance approaches will be sufficient for achieving resource conservation and equitable allocation in a changing climate. To provide insight into these issues, we conducted the first review of freshwater governance in the 12 states that comprise …

Climate-Smart Agriculture: Building Resilience For Women Farmers In Kalchebeshi, Nepal, Annika Ruben

Independent Study Project (ISP) Collection

This case study outlines women’s involvement in climate-smart agriculture and key climate adaptation strategies which are being implemented in the town of Kalchebeshi, Nepal. Kalchebeshi is considered a Resilient Mountain Village because of the town’s integrated approach to addressing climate change and building resilience for farmers. Key findings examined gender differences in farming responsibilities and the significance of farmers’ groups in women’s overall decision making and community involvement. Additionally, changes in water management and pesticide use have been shown to have a positive impact on the lives of women farmers in Kalchebeshi. This paper reinforces the importance of involving vulnerable …

Us County-Level Agricultural Crop Production Typology, Courtney R. Hammond Wagner, Meredith T. Niles, Eric D. Roy

Rubenstein School of Environment and Natural Resources Faculty Publications

Objectives: Crop production is an important variable in social, economic and environmental analyses. There is an abundance of crop data available for the United States, but we lack a typology of county-level crop production that accounts for production similarities in counties across the country. We fill this gap with a county-level classification of crop production with ten mutually exclusive categories across the contiguous United States. Data description: To create the typology we ran a cluster analysis on acreage data for 21 key crops from the United States Department of Agriculture's 2012 Agricultural Census. Prior to clustering, we estimated undisclosed county …

Seeing Is Not Always Believing: Crop Loss And Climate Change Perceptions Among Farm Advisors, Meredith T. Niles, Sarah Wiener, Rachel E. Schattman, Gabrielle Roesch-Mcnally, Julian Reyes

College of Agriculture and Life Sciences Faculty Publications

As climate change is expected to significantly affect agricultural systems globally, agricultural farm advisors have been increasingly recognized as an important resource in helping farmers address these challenges. While there have been many studies exploring the climate change belief and risk perceptions as well as behaviors of both farmers and agricultural farm advisors, there are very few studies that have explored how these perceptions relate to actual climate impacts in agriculture. Here we couple survey data from United States Department of Agriculture farm service employees (n = 6, 514) with historical crop loss data across the United States to explore …

Does Household Capital Mediate The Uptake Of Agricultural Land, Crop, And Livestock Adaptations? Evidence From The Indo-Gangetic Plains (India), Sameer H. Shah, Courtney Hammond Wagner, Udita Sanga, Hogeun Park, Lia Helena Monteiro De Lima Demange, Carolina Gueiros, Meredith T. Niles

College of Agriculture and Life Sciences Faculty Publications

Farmers in the Indo-Gangetic Plains produce much of the wheat and rice grown in India. However, food production and millions of farm-based livelihoods in this region will continue to be adversely affected by hydro-climatic change and variation, reduced land productivity, and declining groundwater levels. Thus, agricultural adaptations are essential for protecting and improving upon intersecting goals of food security, poverty alleviation, and wellbeing. Household “capital” (e.g., natural, human, financial, physical, and social) is commonly cited as an indicator of livelihood adaptability and innovation. We develop a series of mediated structural equation models to empirically evaluate the validity of capital as …

Governing Water Quality Limits In Agricultural Watersheds, Courtney Ryder Hammond Wagner

Graduate College Dissertations and Theses

The diffuse runoff of agricultural nutrients, also called agricultural nonpoint source pollution (NPS), is a widespread threat to freshwater resources. Despite decades of research into the processes of eutrophication and agricultural nutrient management, social, economic, and political barriers have slowed progress towards improving water quality. A critical challenge to managing agricultural NPS pollution is motivating landowners to act against their individual farm production incentives in response to distant ecological impacts. The complexity of governing the social-ecological system requires improved understanding of how policy shapes farmer behavior to improve the state of water quality. This dissertation contributes both theoretically and empirically …

Farmer Perceptions Of Climate Change: Associations With Observed Temperature And Precipitation Trends, Irrigation, And Climate Beliefs, Meredith T. Niles, Nathaniel D. Mueller

College of Agriculture and Life Sciences Faculty Publications

How individuals perceive climate change is linked to whether individuals support climate policies and whether they alter their own climate-related behaviors, yet climate perceptions may be influenced by many factors beyond local shifts in weather. Infrastructure designed to control or regulate natural resources may serve as an important lens through which people experience climate, and thus may influence perceptions. Likewise, perceptions may be influenced by personal beliefs about climate change and whether it is human-induced. Here we examine farmer perceptions of historical climate change, how perceptions are related to observed trends in regional climate, how perceptions are related to the …

From Empty Lot To Garden Plot: Urban Agriculture In Chula Vista, Jennifer E. Gutierrez

Undergraduate Honors Theses

This project is an exploration of how agriculture can be incorporated into the fabric of the city of Chula Vista, which has both uniquely urban and suburban areas. The proposal is to integrate agriculture as a design tool to reconnect to the city’s agricultural past and as a model for cities of the future. First, I discuss Chula Vista’s history and contemporary context, including demographics. I review the existing urban agriculture policies Chula Vista has and compare them to other cities in California. The second part of the project is concerned with how to choose and develop a site for …

Working With Locals To Restore Biodiversity To A Rubber Dominated Landscape, Francis Commercon

Independent Study Project (ISP) Collection

Xishuangbanna, in Yunnan,China, contains the country’s highest concentration of biodiversity. Since the 1980s,rubber plantations have replaced a significant portion of the prefecture’s lowland Seasonal Tropical Rainforest, leading to wildlife habitat loss and other environmental issues.Monoculture farming practices also leave farmers economically vulnerable to market fluctuations. To learn the best solutions for increasing ecosystem services and income stability in rubber-dominated areas, the World Agroforestry Center (ICRAF) project Green Rubber engages smallholders directly in establishing and maintaining scientifically rigorous intercropping experiments in their villages.

Using Man’e village and the Green Rubber project as a case study, I asked to what degree and …

The Ecological Genomic Basis Of Salinity Adaptation In Tunisian Medicago Truncatula, Maren L. Friesen, Eric J.B. Von Wettberg, Mounawer Badri, Ken S. Moriuchi, Fathi Barhoumi, Peter L. Chang, Sonia Cuellar-Ortiz, Matilde A. Cordeiro, Wendy T. Vu, Soumaya Arraouadi, Naceur Djébali, Kais Zribi, Yazid Badri, Stephanie S. Porter, Mohammed Elarbi Aouani, Douglas R. Cook, Sharon Y. Strauss, Sergey V. Nuzhdin

College of Agriculture and Life Sciences Faculty Publications

Background: As our world becomes warmer, agriculture is increasingly impacted by rising soil salinity and understanding plant adaptation to salt stress can help enable effective crop breeding. Salt tolerance is a complex plant phenotype and we know little about the pathways utilized by naturally tolerant plants. Legumes are important species in agricultural and natural ecosystems, since they engage in symbiotic nitrogen-fixation, but are especially vulnerable to salinity stress. Results: Our studies of the model legume Medicago truncatula in field and greenhouse settings demonstrate that Tunisian populations are locally adapted to saline soils at the metapopulation level and that saline origin …

Shade Coffee: Update On A Disappearing Refuge For Biodiversity, Shalene Jha, Christopher M. Bacon, Stacy M. Philpott, V. Ernesto Méndez, Peter Läderach, Robert A. Rice

College of Agriculture and Life Sciences Faculty Publications

In the past three decades, coffee cultivation has gained widespread attention for its crucial role in supporting local and global biodiversity. In this synthetic Overview, we present newly gathered data that summarize how global patterns in coffee distribution and shade vegetation have changed and discuss implications for biodiversity, ecosystem services, and livelihoods. Although overall cultivated coffee area has decreased by 8% since 1990, coffee production and agricultural intensification have increased in many places and shifted globally, with production expanding in Asia while contracting in Africa. Ecosystem services such as pollination, pest control, climate regulation, and nutrient sequestration are generally greater …

Fearless: Adrienne Ellis, Adrienne M. Ellis

SURGE

Taking the initiative to change college policies related to LGBTQ issues, restructuring a sustainable community garden in Gettysburg over the summer, and continually being motivated to change and challenge the powers that be through her love of people, Adrienne Ellis ’14 fearlessly fights for what she believes to help the people she loves— everybody. [excerpt]

A Portrait Of A Farm: A Short Film Documenting Small-Scale Livestock Production On Hayters Hill Farm In Byron Bay, Noah Throop

Independent Study Project (ISP) Collection

Over the past two-hundred years, the industrialization and mechanization of agriculture has slowly dissolved the centuries-old bond between human beings, the land and their food. Today, this disconnect threatens to exacerbate wide scale environmental degradation and a wide array of chronic diseases. However small, local farms that sell their produce directly to consumers are in a position to reverse this trend and reconnect consumers with their food. Small-scale farmers are able to see the health of the environment as instrumental to their economic and personal wellbeing and are able to be held accountable for their farming practices by their customers. …

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 …

Farmers Motivations To Practice Sustainable Agriculture, Kimberly A. Floeser

Honors Theses

An increasing awareness of human and environmental health issues and the destruction of family farms and rural communities have caused a significant change in the way many farmers, consumers, and policy‐makers are thinking about and relating to food, the results of which can be seen largely in the growth of the organic and sustainable food industry. This paper attempts to examine and explain farmers’ attitudes towards sustainable agriculture, and their motivations to use sustainable methods of production. A survey was distributed to 533 farms that are members of the Northeast Organic Food Association of New York (NOFA‐NY). The data obtained …