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Survival, Harvest, And Drumming Ecology Of Ruffed Grouse In Central Maine, Usa, Samantha Davis

Electronic Theses and Dissertations

Understanding population dynamics and how species interact with their environment are important components for conservation and management. Ruffed grouse (Bonasa umbellus) are a widely distributed and common game bird in North America and are a considered an important economic and cultural icon in Maine. Although they are a well-studied species, there has been little research focused on ruffed grouse population dynamics and habitat relationships in Maine. My thesis aims to improve this knowledge gap by focusing on research related to survival and harvest of ruffed grouse, as well as male ruffed grouse resource selection at breeding display sites. Ruffed grouse …

Party Development And Political Conflict In Maine 1820-1860 From Statehood To The Civil War, Lee D. Webb

Electronic Theses and Dissertations

This dissertation is a history of politics in Maine during the state’s formative period, the years from statehood until 1860. The history focuses on party conflict and on the development of organized political parties, particularly the Democratic and Republican parties. It concentrates on the structures and processes that politicians built, including party newspapers, county conventions, state conventions, legislative caucuses, and ultimately state committees and the office of state committee chair – all to compete effectively for power. During this 40-year period, parties also develop powerful new messages, campaign strategies, and developed leaders with the skills to accomplish these tasks.

I …

Grassroots Diplomacy And Vernacular Law: The Discourse Of Food Sovereignty In Maine, John Welton

Electronic Theses and Dissertations

This thesis studies the discourse of food sovereignty in Maine, a coalition of small-scale farmers, consumers, and citizens building an alternative food system based on a distributed form of production, processing, selling, purchasing, and consumption. This distribution occurs at the municipal level through the enactment of ordinances. Using critical-rhetorical field methods, I argue that the discourse of food sovereignty in Maine develops a ‘constitutive’ rhetoric that composes rural society through affective relationships. Advocates engage the industrial food system to both expose its systemic bias against small-scale farming and construct their own discourse of belonging. Based upon agrarian values such as …

Wabanaki Access To Sweetgrass (Hierochloe Odorata) Within Coastal Maine's Diminishing Open Land Tradition, Amanda Marie Ellis

Electronic Theses and Dissertations

Nontimber forest products (NTFPs), refer to a class of resources (i.e. moss, fungi, mushrooms, plants, etc.) gathered in both rural and urban landscapes. NTFPs are utilized by a variety of cultures all over the world and are a critical part of medicinal, spiritual, dietary, and economic practices. In fact, some NTFP species are so critical to people that they are considered ‘cultural keystone species’ (Garibaldi and Turner 2004). This designation means that without access to the NTFP, cultural survival is at risk. This is the case in Maine where the Wabanaki, a confederacy of four tribes (Passamaqouddy, Penobscot, Mikmaq, and …

Exploring The Liminal Space: Dual Enrollment At Maine's Community Colleges, Amy Lynn Hubbard

Electronic Theses and Dissertations

Exploring the Liminal Space: Dual Enrollment at Maine's Community Colleges

Only 39% of matriculated students will earn a college degree or certificate in six years due to inadequate preparation in high school (Center for Community College Student Engagement, 2016). Dual enrollment (DE) courses have been touted as one way to bridge the gap between high school and college (Hanson, Prusha, & Iverson, 2015; Harnish & Lynch, 2005; Johnson & Brophy, 2006; Karp, Calcagno, Hughes, Jeong, & Bailey, 2007; Morrison, 2008; Smith, 2007; Swanson, 2008). Dual enrollment is broadly defined as any course in which a high school student earns college …

Understanding The Impact Of Commercial Harvest On White Suckers (Catostomus Commersonii) In Maine, Megan A. Begley

Electronic Theses and Dissertations

The State of Maine issues an unlimited number of commercial permits for the harvest of White Suckers Catostomus commersonii in Maine’s inland waters. The fishery provides a necessary source of fresh lobster Homarus americanus bait to coastal communities at a time when other bait sources are scarce. The impacts of the increasing number of permits and subsequent numbers of fishermen on the white sucker population is unknown. The Maine Department on Inland Fisheries and Wildlife (MDIFW) has closed a number of waters due to concerns that overfishing and incidental catch of other fish species may occur.

In Chapter 1, we …

Social And Ecological Factors Affecting The Adoption Of Aquaculture, Karen Pianka

Electronic Theses and Dissertations

Commercial fishermen in Maine are increasingly dependent upon the American lobster fishery, and this reliance on a single species poses a threat to working waterfronts. Aquaculture represents a potential opportunity for commercial fishermen to diversify their income. Literature on the adoption of innovation suggests that factors such as age, education level, fishing experience, diversification, and leadership are important predictors of early adoption of innovation. However, few studies have examined whether such factors affect the adoption of aquaculture by commercial fishermen. Our marine policy research studied fishermen enrolled in two pilot shellfish and seaweed aquaculture classes held in 2013 in Harpswell …

The Human Dimensions Of Pollinator Conservation : Perception, Practice, And Policy In The Lowbush Blueberry Industry, Kourtney K. Collum

Electronic Theses and Dissertations

This dissertation presents comparative research of diverse agricultural actors involved in lowbush blueberry productions in Maine, USA and Prince Edward Island (PEI), Canada, in order to explore the factors that influence on-farm pollinator conservation. The research is presented through three distinct projects. In the first project, my collaborators and I ask: how do growers perceive and understand pollination in agricultural systems, and how do growers’ perceptions influence their willingness and ability to enact on-farm bee conservation? Drawing on semi-structured interviews with conventional growers, we present growers’ cultural models of pollination management and pollinator conservation. Our analysis reveals that the messages …

On Becoming A Homesteader, Tasha Raymond

Electronic Theses and Dissertations

This project/thesis is a combination of personal reflection on my family's work towards building a homestead and the research that has driven, and been driven by, our homesteading goals and desires. The history of homesteading is included to situate our homestead into the larger homesteading history in Maine and in the country. Recalling our own motivations to control our food security and food sovereignty that is traditionally tied to commercial agriculture, I integrate the topics of genetically modified organisms and concentrated animal feeding operations and the reasons we chose to avoid both. Our concern for the environment, distrust in food …

Reverend Jonathan Fisher: One Thread In The Web Of Early American Education, 1780-1830, Brittany P. Cathey

Electronic Theses and Dissertations

Jonathan Fisher was a remarkably gifted man with a passionate interest in the education of the future generations of Maine citizens. No historian, however, has yet to examine Jonathan Fisher’s connection to American educational trends. Primary and secondary schools had existed in colonial America since the 1630s. Fisher witnessed and participated in the transformation of American schooling through his involvement in the local schools, libraries and education within his home, his establishment and maintenance of the Blue Hill Academy and the Bangor Theological Seminary and the publication of his juvenile works The Youth’s Primer and Scripture Animals.

The first …

Evaluation Of Airborne Lidar As A Tool For Obtaining Sustainable Forest Management Of Maine's Forests, Rei Hayashi

Electronic Theses and Dissertations

The first objective of this study was to evaluate the applicability of using a low density (ca. 1 point m􀀀2) discrete-return LiDAR for predicting maximum tree height, stem density, basal area, quadratic mean diameter, and stem volume using an area-based approach. The research was conducted at the Penobscot Experimental Forest in central Maine, where a range of stand structures and species composition is present and generally representative of northern Maines forests. Using a variety of high dimensional LiDAR metrics, a prediction model was developed using random forest, a nonparametric approach, based on reference data collected in fixed radius circular plots. …

Amphibians In Complex Landscapes: Quantifying Habitat Connectivity For Juvenile Movements And Dispersal, Brittany Blue Cline

Electronic Theses and Dissertations

Maintaining amphibian populations in fragmented landscapes depends on preserving functional connectivity for animals that need to transit multiple vegetation types to satisfy habitat requirements. For many pool-breeding amphibians, successful dispersal is essential for gene flow; thus, quantifying the ability of juveniles to locate and reach suitable habitat in the terrestrial matrix is necessary to predict the consequences of landscape configuration for populations. I evaluated if different open-canopy vegetation types alter the behavior of juvenile wood frogs (Lithobates sylvaticus). First, I quantified the relative permeability of different open-vegetation types by experimentally releasing frogs in 35 x 3 m enclosures extending from …

Maine Farmers' Perspectives: Barriers And Optimism To Providing Food To Feed Maine People, A Qualitative Study Using Focus Groups, Kelly Ann Ilseman

Electronic Theses and Dissertations

Maine has a history and tradition of agriculture in the state. Some growth in the number of farms in recent years has been due to youth entering agriculture, and in the development of small, diverse farms. There is also public interest in purchasing fresh, local foods. This study was done in conjunction with a University of Maine Cooperative Extension study that assessed Maine farmer’s views of the future of farming in Maine. The farmers (n=189) participated in one of twelve focus groups held across the state and represented a broad sector of Maine agriculture, including vegetable and fruit growers, beef …

Application Of Spatial Modeling Tools To Predict Native Bee Abundance In Maine's Lowbush Blueberries, Shannon J. Chapin

Electronic Theses and Dissertations

Non-native honeybees historically have been used to pollinate many crops throughout the United States, however, recent population declines have revealed the need for a more sustainable pollination plan. Native bees are a natural resource that can play an important role in pollination. I used spatial modeling tools to evaluate relationships between landscape factors and native bee abundance, with a focus on the wild native bees that pollinate Maine’s lowbush blueberries. I applied the InVEST Crop Pollination ecosystem spatial modeling tool, which predicts pollinator abundance based on available floral resources and nesting habitat, to the Downeast Maine region. The InVEST model …

Spatial And Habitat Responses Of Canada Lynx In Maine To A Decline In Snowshoe Hare Density, David G. Mallett

Electronic Theses and Dissertations

Previous studies of Canada lynx (Lynx canadensis) within the northern boreal forest region have documented that lynx respond spatially to a decline in snowshoe hare (Lepus americanus) density, as exhibited by expansion of territories and changes in social structure. I compared home range area and spatial overlap in the southeastern portion of their geographic range during periods of relatively high and relatively low hare density. Home range areas of lynx did not change between periods of high and low hare density, except that home ranges of females during the denning season expanded during the low period. The presence of kittens …

Building Bridges For Women Through Service-Learning: Bringing Students And Communities Together To Combat Domestic Violence In Honduras, Darlene Metcalf-Bergeron

Electronic Theses and Dissertations

This thesis defines service-learning and domestic violence, while describing how bringing students and communities together through service-learning courses can build and has already built bridges for victims of violence against women. Collaboration is essential in the quest to raise awareness about domestic violence through education. This thesis will demonstrate through data and photojournalism this collaboration between students of SPA/MLC Service-Learning Classes of UMaine from 2006 through to and including 2011.

As the themes in this thesis develop the reader will also begin to question what lies just beyond our borders and behind closed doors for women of the twenty-first century. …

Sources Of Variability In Agronomic Weed Seed Predation: Time, Space, Habitat, And Hyperpredation, Sonja K. Birthisel

Electronic Theses and Dissertations

Weed seed predation is an ecosystem service that benefits farmers by decreasing seedbank inputs, thereby reducing weed pressure in subsequent growing seasons. Seed predation can be considerable, but is highly variable. Sources of variability may include time, space, habitat, and trophic interactions such as hyperpredation. Two experiments were conducted to measure the impacts of these sources of variability on weed seed predation rates in Maine mixed vegetable agroecosystems.

Chapter One of this thesis describes a series of landscape-level field experiments conducted to quantify the effects of time, space, and habitat on seed predation rates. Seed assays, with and without vertebrate …

Communication And Resilience In Collaboration, Social-Ecological Systems, And Discourse, Bridie Mcgreavy

Electronic Theses and Dissertations

How does communication connect with and shape resilience and sustainability? I understand communication as a dynamic and context dependent concept. I draw my understanding of communication from systems, materiality, and discourse theories. I employ a mix of quantitative, qualitative, and critical approaches in three discrete projects focused on collaboration, social-ecological systems, and discourse.

In the first project, my collaborators and I ask: how does an understanding of complex communication dynamics help identify ways to improve participation for intended collaboration outcomes across scales? We explore this question through a two-year mixed methods study of interdisciplinary collaboration and stakeholder engagement in Maine’s …

Production Ecology And Stand Dynamics Of Young Acadian Forest Stands In Response To Silvicultural Intensity And Compositional Objectives, Andrew S. Nelson

Electronic Theses and Dissertations

Early successional stands are common across the Acadian forests of eastern Canada and the Northeastern US. However, productivity and dynamics of these stands, as well as the underlying mechanisms influencing these processes, under different management scenarios are poorly understood. To address this need, I used a factorial experiment that controlled silvicultural intensity and species composition to quantify the effects of varying treatments on early stand dynamics, and the physiological and morphological factors influencing tree performance . Specifically, I studied: 1) species differences in aboveground allometrics, 2) light capture, light-use efficiency (LUE; growth/light capture), and foliar carbon isotope composition (δ13C) of …

Design, Optimization, And Testing Of A Cross-Flow Tidal Turbine, Megan Colleen Swanger

Electronic Theses and Dissertations

This thesis is a summary of testing conducted with a Darrieus style cross-flow tidal turbine. Many locations around the world have locations suitable for tidal turbine energy, including the Cobscook Bay in Eastport, Maine. Cross-flow turbines are likely to have a smaller impact on the environment compared to axial flow turbines due to their operation at lower tip speed ratios. Since very little experimental data is available presently for cross-flow turbines, this study provides an expansive set of performance data for two NACA series blade profiles of the same chord length. One blade profile was used in two different orientations …

A Case Study Approach For Assessing Operational And Silvicultural Performance Of Whole-Tree Biomass Harvesting In Maine, Charles E. Coup

Electronic Theses and Dissertations

In the Northeastern United States, re-emerging markets for renewable energy are driving interest in increasing the harvest of underutilized biomass material from Maine’s forest. These markets may offer opportunities for forest managers to implement silvicultural treatments that have previously been foregone due to their high cost. However, many operational challenges arise in using current harvesting systems to harvest biomass material profitably while simultaneously achieving silvicultrual objectives. This research uses a case study approach to analyzing some of the possibilities and obstacles in implementing biomass harvesting in Maine. The first three studies investigate a factorial silvicultural and operational case study involving …

The Influences Of Conventional And Low Density Thinning On Leaf Area, Growth, And Growing Space Relationships Of Eastern White Pine (Pinus Strobus L.), Christopher Henry Guiterman

Electronic Theses and Dissertations

Despite the commercial importance and widespread management of eastern white pine {Pinus strobus L.) in the Northeast, surprisingly little is known about the effects of thinning on even-aged stand development. To address this, patterns of leaf area, bole form, volume growth, and growth efficiency - defined as volume increment per unit leaf area - were examined over a 17-year period within a thinning study in central Maine designed to compare the conventional B-line and low density thinning regimes. At the tree-level, many of the effects of thinning were as expected. Heavier, low density thinning resulted in significantly larger and deeper …

Effects Of Fish Introductions On The Geographic Distribution And Native Invertebrate Biodiversity Of Naturally Fishless Lakes In Maine, Emily Gaenzle Schilling

Electronic Theses and Dissertations

Widespread fish stocking has led to a worldwide decline in naturally fishless lakes and their associated communities. Little is known about the historical distribution or native communities of these freshwater ecosystems. The objectives of this study were to: 1) develop a quantitative method to remotely detect naturally fishless lakes in Maine, 2) conduct a landscape-scale assessment of unique attributes of fishless lake macroinvertebrate communities, 3) identify macroinvertebrate bioindicators of fish absence, and 4) assess effects of introduced fish on native macroinvertebrates. I identified two physiographic types of naturally fishless lakes in Maine: kettle lakes in the eastern lowlands and foothills …

The Effects Of Chronically Elevated N And S Deposition On The Nutrition And Physiology Of Sugar Maple At The Bear Brook Watershed In Maine, Suzanne Bethers

Electronic Theses and Dissertations

The Bear Brook Watershed in Maine is a paired watershed system; one watershed has been acidified bimonthly with granular ammonium sulfate ((NH₄)₂SO₄) since 1989. The adjacent watershed is used as a reference. This acid deposition treatment presents unique opportunities to look at the long term affects of acidification on vegetation. Acidic deposition continues to be a concern for the health of sugar maple (Acer saccharum Marsh.) in northern hardwood forests. Many studies show a connection between base cation depletion induced by acid deposition and sugar maple decline. In this text we …

Methods For The Translocation Of The Yellow Lampmussel (Lampsilis Cariosa) And The Tidewater Mucket (Leptodea Ochracea) In The Fort Halifax Dam Impoundment Of The Sebasticok River, Maine, Jennifer Elaine Kurth

Electronic Theses and Dissertations

Translocation from areas where habitat alterations are proposed can be an important mussel conservation tool. Pending removal of the Fort Halifax dam on the Sebasticook River in Maine potentially would result in extensive mortality of two statelisted threatened species of mussels, yellow lampmussels (Lampsilis cariosa) and tidewater muckets (Leptodea ochracea), which occur in the impoundment above the dam. My study assessed populations of these two species in the impoundment, and determined the effects of within- and between-waterbody translocations on survival. I conducted a qualitative survey of the Fort Halifax dam impoundment in 2004 to determine locations …

State Of Maine Forester Licensure Program And Policy Review, Stephen F. Holt

Electronic Theses and Dissertations

Despite the continued importance of the forest resources to the State of Maine that led to the initial forester registration law in 1975, forester regulation has been the subject of only one program audit and policy review. That occurred 20 years ago, in 1986.

It is important to understand the need for a periodic forester regulatory program review even if there are no currently apparent or expected public interest or resource protection related issues.

There have been many significant changes since the last forester regulatory program and policy review that have impacted forest policy, management, and the related forestry based …

Revegetating Blackwoods Campground, Acadia National Park: Emphasis On Natural Regeneration Of Red Spruce And Balsam Fir, Cristin O'Brien

Electronic Theses and Dissertations

Blackwoods Campground in Acadia National Park has a declining vegetative understory, characterized by a lack of tree seedling recruitment and shrub populations. This project was embarked upon to identify limiting factors to tree seedling establishment and shrub survival. From these studies, management plans will be developed for revegetating the campground understory. To better understand the factors that inhibit successful seedling establishment, we investigated the effects of varying soil moisture levels on seed germination, seedling survival and seedling dry mass accumulation for red spruce and balsam fir. We also studied the effect of organic layer depth on seedling growth for both …

The Effects Of The 2001-2002 Drought On Maine Surface Water Supplies, Catherine Schmitt

Electronic Theses and Dissertations

Maine lakes and streams serve as significant sources of public water supply, serving 40% of the population. Drought affects surface water resources by reducing water quantity and altering water quality, for example by reducing inputs of materials from the watershed and increasing water residence times. The 2001-2002 drought was the worst in Maine in over thirty years, and it exposed deficiencies in current water resources planning and management. In this study, I evaluated the effects of the 2001-2002 drought on Maine public water systems in order to identify characteristics of systems vulnerable to drought and determine appropriate indicators of drought …

Population Dynamics And Spatial Analysis Of The Maine Green Sea Urchin (Strongylocentrotus Droebachiensis) Fishery, Robert C. Grabowski

Electronic Theses and Dissertations

Fisheries research on the green sea urchin in Maine has been limited despite its importance to the state's fishing industry. The objective of this thesis was to generate critical information for the management and monitoring of the Maine green sea urchin fishery. In particular there are three main areas of interest: (1) an investigation of biological reference points; (2) spatial analysis and biomass estimation, and (3) the development of a simulation framework approach to determine an optimal sampling strategy for the fishery-independent survey program. Biological reference points are markers conlrnonly used to monitor and manage fisheries. For the Maine sea …

Effects Of Frost Heave On A Soil Nail Wall In Brunswick, Maine, Sandra Mcrae Duchesne

Electronic Theses and Dissertations

Soil nail walls have been used as retaining structures worldwide since the early 1970s. The technology is particularly well suited for constructing walls in areas with limited overhead clearance and maneuvering room for heavy equipment, such as highway bridge underpasses. However, designers have been reluctant to experiment with soil nailing in areas with cold-weather climates and frost-susceptible soils, due to the lack of quantifiable data on the behavior of these walls when subjected to freezing conditions. The University of Maine collaborated with the Maine Department of Transportation (MDOT) in a research initiative on the first soil nail wall project in …