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Full-Text Articles in Physical Sciences and Mathematics
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 …
Mp765: Creating The Orono Bog Boardwalk: A Facility For Education, Research, And Recreation, Ronald B. Davis
Mp765: Creating The Orono Bog Boardwalk: A Facility For Education, Research, And Recreation, Ronald B. Davis
Miscellaneous Publications
A memoir by Dr. Ronald Davis detailing the creation of the Orono Bog Boardwalk. The Orono Bog Boardwalk is a premier destination in the Bangor/Orono area for persons wishing to experience the beauty and fascinating plants and animals of a Maine bog. The 1-mile boardwalk loop trail begins at the forested wetland edge in the Bangor City Forest, and after 800 feet crosses the Orono town line into the portion of the Orono Bog owned by the University of Maine. Along the way the boardwalk passes through a wide range of changing vegetation and environments on its way to the …
Tapping The Sweet Spot: Predicting The Suitability Of A Woodlot’S Potential To Transition Into A Productive Sugarbush In Maine, Deven M. Teisl
Tapping The Sweet Spot: Predicting The Suitability Of A Woodlot’S Potential To Transition Into A Productive Sugarbush In Maine, Deven M. Teisl
Non-Thesis Student Work
Through conversations with Dr. Sara Velardi, a postdoctoral research associate who has been doing research on maple producers’ scale management decisions in Maine, most current owners and operators in the maple syrup industry have the common interest of expanding their current operations, but they are unsure of how to approach that problem. Due to these current issues, my research focused on creating a sugarbush assessment tool. This assessment tool consists of a set of guidelines which can be utilized by current or future producers and can be used to easily assess woodlots without having to hire a consulting forester to …
Examining The Northern Shrimp Fishery In A Changing Gulf Of Maine, Ashley N. Charleson
Examining The Northern Shrimp Fishery In A Changing Gulf Of Maine, Ashley N. Charleson
Electronic Theses and Dissertations
Northern Shrimp (Pandalus borealis) once supported a key commercial fishery in the State of Maine. Since its closure in 2013, the stock has remained in a particularly vulnerable state following recruitment failure, overfishing, and rising water temperatures. Furthermore, without this source of supplemental income, local fishermen have also experienced financial stress following unstable fishing conditions in other fisheries. The collective goal of this research project was to assess factors impacting the feasibility of reopening and maintaining this vulnerable winter fishery. These goals are addressed over 4 chapters. Chapter two offers insight regarding what is most often omitted from the regulatory …
Blacklegged Tick (Ixodes Scapularis) Distribution In Maine, Usa, As Related To Climate Change, White-Tailed Deer, And The Landscape, Susan P. Elias
Blacklegged Tick (Ixodes Scapularis) Distribution In Maine, Usa, As Related To Climate Change, White-Tailed Deer, And The Landscape, Susan P. Elias
Electronic Theses and Dissertations
Lyme disease is caused by the bacterial spirochete Borrelia burgdorferi, which is transmitted through the bite of an infected blacklegged (deer) tick (Ixodes scapularis). Geographic invasion of I. scapularis in North America has been attributed to causes including 20th century reforestation and suburbanization, burgeoning populations of the white-tailed deer (Odocoileus virginianus) which is the primary reproductive host of I. scapularis, tick-associated non-native plant invasions, and climate change. Maine, USA, is a high Lyme disease incidence state, with a history of increasing I. scapularis abundance and northward range expansion. This thesis addresses the question: “To …
How Acidic Sediments And Seawater Affect Interactive Effects Of Predation On Survival, Growth, And Recruitment Of Wild And Cultured Soft-Shell Clams, Mya Arenaria L., Along A Tidal Gradient At Two Intertidal Sites In Eastern Maine, Brian F. Beal, William Otto
How Acidic Sediments And Seawater Affect Interactive Effects Of Predation On Survival, Growth, And Recruitment Of Wild And Cultured Soft-Shell Clams, Mya Arenaria L., Along A Tidal Gradient At Two Intertidal Sites In Eastern Maine, Brian F. Beal, William Otto
Miscellaneous Publications
No abstract provided.
Survival, Harvest, And Drumming Ecology Of Ruffed Grouse In Central Maine, Usa, Samantha Davis
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 …
Cormorant, Judy Kaber
Bees Of Maine, With A State Species Checklist, Alison C. Dibble, Francis A. Drummond, Constance Stubbs, Michael Veit, John S. Ascher
Bees Of Maine, With A State Species Checklist, Alison C. Dibble, Francis A. Drummond, Constance Stubbs, Michael Veit, John S. Ascher
Biology and Ecology Faculty Scholarship
We present a new county checklist developed from bee research in Maine since the 1800s. The list contains 278 bee species in 37 genera and 6 families, of which all but 8 are native, with ≥50 taxa each in Andrena and Lasioglossum. Data for 16 counties from publications, museum collections, and recent surveys varied in number of species from 8 (Androscoggin) to 197 (Hancock). Research since 1930 on Vaccinium angustifolium (Lowbush Blueberry) led to many records. Twenty-one species are considered unusual, including 3 first recorded in 2016: Epeoloides pilosulus, Melitta melittoides, and Holcopasites calliopsidis. Maine records …
Place-Based Approaches To Alternative Energy: The Potential For Forest And Grass Biomass For Aroostook County, Jason Johnston, Soraya Cardenas
Place-Based Approaches To Alternative Energy: The Potential For Forest And Grass Biomass For Aroostook County, Jason Johnston, Soraya Cardenas
Maine Policy Review
Teams at the University of Maine Presque Isle and the University of Maine at Forth Kent are engaged in evaluating the potential for forest and grass biomass energy in Aroostook County, funded through Maine’s Sustainability Solutions Initiative. The article discusses how this potential is being evaluated and the possible ways in which expanding grass and wood biomass might benefit farmers and residents of The County. It suggests that using some of Maine’s farmland for fuel might be sustainable with appropriate management and with consideration for potential environmental and socioeconomic drawbacks
Reaching Into The Past For Future Resilience: Recovery Efforts In Maine Rivers And Coastal Waters, John Lichter, Ted Ames
Reaching Into The Past For Future Resilience: Recovery Efforts In Maine Rivers And Coastal Waters, John Lichter, Ted Ames
Maine Policy Review
John Lichter and Ted Ames discuss how analysis of environmental histories of human activities affecting Maine’s estuary, river, and coastal marine ecosystems can shed light on the role key fish species may play. Through Maine’s Sustainability Solutions Initiative, a group of researchers from Bowdoin, Bates, University of Southern Maine, and Penobscot East Resource Center have teamed up to examine ecological recovery in the state’s waterways and coastal fisheries. Several river restoration efforts were already underway, and others are being planned as a direct result of this interdisciplinary project.
It’S Growing Season For Maine’S Food System, Deborah Felder
It’S Growing Season For Maine’S Food System, Deborah Felder
Maine Policy Review
In the introduction to this special issue, guest editor Deb Felder lays out the elements of a sustainable food system. She notes that the increased interest in more ecologically sustainable, safe, humane, and economical community-supported food systems has “put Maine in the forefront of the food movement.”
Building A Sustainable Seafood System For Maine, Robin Alden
Building A Sustainable Seafood System For Maine, Robin Alden
Maine Policy Review
In this article, Robin Alden notes that Maine could have one of the premier marine food systems in the world. However, that means adequate stewardship of the Gulf of Maine ecosystem and diversifying the fishing industry beyond lobster by creating innovative public policy and a food system that supports community fishing.
Adrift In A Sea Of Information About Sustainable Seafood: The Maine Consumer Perspective, Catherine V. Schmitt
Adrift In A Sea Of Information About Sustainable Seafood: The Maine Consumer Perspective, Catherine V. Schmitt
Maine Policy Review
The desire for a sustainable seafood industry that protects the environment and the future of fishing is certainly of interest to consumers, but even here there are conflicting standards, as Catherine Schmitt explores in this article.
Historical Perspectives On Resource Use In Food Systems, John Jemison, Amanda Beal
Historical Perspectives On Resource Use In Food Systems, John Jemison, Amanda Beal
Maine Policy Review
No one would deny that industrial agriculture and fishing have been highly productive—but at what cost? This article explores the historical development and contemporary impact of food production on the environment, availability of water and other resources, energy, food safety, and even our waistlines
Resource, Environment And Energy Considerations For Maine Food Security In 2050 And Beyond, Amanda Beal, John Jemison
Resource, Environment And Energy Considerations For Maine Food Security In 2050 And Beyond, Amanda Beal, John Jemison
Maine Policy Review
This article discusses some of the expensive “externalities” produced by industrial agriculture and fishing. These include impaired watershed quality, soil degradation, pollution, reduction in biodiversity, and impacts on human health. The article also includes a discussion of transgenic crops and how these relate to sustainable agriculture
Farms And The Working Landscape, John Piotti
Farms And The Working Landscape, John Piotti
Maine Policy Review
After years of losing farms and farmers, Maine is seeing an increase in the number of acres being farmed, due partly to a resurgence of interest in farming and new tools that help preserve working landscapes. These tools include agricultural easements such as those offered by the Land for Maine’s Future, the Buy/Protect/Sell program at Maine Farmland Trust, local ordinances, and several federal programs
Maine Forest Landowner Study, James Acheson
Maine Forest Landowner Study, James Acheson
University of Maine Office of Research Administration: Grant Reports
One of the most important questions for resource management is, under what conditions will users conserve the resources on which their livelihood depends? This project studies the forest management strategies of different types of forest landowner groups in Maine. Some owners are doing a far better job of managing their forests sustainably than are others. The quality of management practices is a crucial issues at this time, because the rapid depletion of forests is a world-wide problem. Maine is a particularly good laboratory to study forest management issues because it is the most heavily forested state in the country, and …
Effects Of Fish Introductions On The Geographic Distribution And Native Invertebrate Biodiversity Of Naturally Fishless Lakes In Maine, Emily Gaenzle Schilling
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 …
Biomass And Biofuels In Maine: Estimating Supplies For Expanding The Forest Products Industry, Jonathan Rubin, Kate Dickerson, Jacob Kavkewitz
Biomass And Biofuels In Maine: Estimating Supplies For Expanding The Forest Products Industry, Jonathan Rubin, Kate Dickerson, Jacob Kavkewitz
Energy & the Environment
This paper estimates the renewable energy potential of Maine’s forest resources, and how much energy these resources could potentially provide the state. Using the most recent state-specific data available, and a methodology similar to the Billion Tons Report, we find that ethanol production from Maine’s forest residues could potentially provide 18% of Maine’s transportation (gasoline) fuels with a fermentation wood to ethanol process. Making Fischer-Tropsch diesel (F-T diesel) using forest residues can replace 39% of Maine’s petro-diesel consumption. Actual levels of biofuels that can be produced will depend on conversion factors and forestry residue removals that are subject to uncertainty.
U.S. Forest Ownership: Historic And Global Perspective, Lloyd C. Irland
U.S. Forest Ownership: Historic And Global Perspective, Lloyd C. Irland
Maine Policy Review
Mainers once enjoyed the sense that the state’s vast forested lands would forevermore be a feature of the state’s landscape and cultural heritage. However, this sensibility has been threatened by fragmentation and sprawl and rapid changes in ownership. According to Lloyd Irland, Maine is not unique. The U.S. is facing a crisis of sustainability in forests and rural communities. Irland provides a brief history of forest ownership in the U.S. and analyzes some global trends to help to explain this crisis. He suggests Mainers look to experiences elsewhere in the nation and world to come up with a new mix …
Population Dynamics And Spatial Analysis Of The Maine Green Sea Urchin (Strongylocentrotus Droebachiensis) Fishery, Robert C. Grabowski
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 …
Best Practices In Endangered Species Recovery Planning: Lessons For The Conservation Of Maine’S Atlantic Salmon, Raymond J. O’Connor, Ray B. Owen, Judith Rhymer
Best Practices In Endangered Species Recovery Planning: Lessons For The Conservation Of Maine’S Atlantic Salmon, Raymond J. O’Connor, Ray B. Owen, Judith Rhymer
Maine Policy Review
The call for federal listing of Atlantic salmon as endangered implies that such action will result in a recovery plan for the species that is superior to Maine ’s Atlantic Salmon Conservation Plan. In this article the authors compare the Maine plan against the findings of a recent review of Endangered Species Act recovery plans. The review, conducted by the Society for Conservation Biology in collaboration with the U.S. Fish and Wildlife Service, assessed the quality of a national sample of Endangered Species Act recovery plans with the intention of identifying “best practice.” By comparing the Maine plan to the …
Evolution Of The Maine Lobster Co-Management Law, James Acheson, Terry Stockwell, James A. Wilson
Evolution Of The Maine Lobster Co-Management Law, James Acheson, Terry Stockwell, James A. Wilson
Maine Policy Review
In fisheries management circles, there is growing realization that traditional ways of managing marine resources are not working and that new approaches to management need to be tried. One of the most promising of these new approaches is co-management, where authority for managing fish stocks is shared between the industry and government agencies. This paper discusses the implementation of the new co-management system, which was initiated in the Maine lobster industry in 1995. The law has clearly been successful; it has been framed in a way to allow lobster fishermen to be able to generate rules to constrain their own …
Developing A Cooperative Research Agenda For Maine’S Commercial Fisheries, Robin Alden, Linda Mercer
Developing A Cooperative Research Agenda For Maine’S Commercial Fisheries, Robin Alden, Linda Mercer
Maine Policy Review
This past year the Maine Department of Marine Resources sponsored a unique series of meetings involving fishermen, academic and government scientists, and fishery managers. The goal was to define a shared research agenda for Maine’s marine fisheries. Robin Alden and Linda Mercer summarize the results of these meetings. In doing so they address the question: “What do we need to know to properly manage Maine's major marine resources?” Alden and Mercer also conclude that the collaborative process these meetings helped to establish is one of the keys to the successful management of Maine’s marine resources.
B846: Growing Season Parameter Reconstructions For New England Using Killing Frost Records, 1697-1947, William R. Baron, David C. Smith
B846: Growing Season Parameter Reconstructions For New England Using Killing Frost Records, 1697-1947, William R. Baron, David C. Smith
Bulletins
In New England, killing frosts in the late spring and early fall mark the limits of the region's growing seasons. Over the years, farmers have tried to anticipate when to plant and when to harvest to safely prevent their crops from experiencing the harmful effects of freezing. As a hedge against failing memory, some farmers kept notes on when killing frosts occurred so that they could more readily calculate in the years to come when to sow and when to reap. Some of these notes have survived and are now preserved in archives and libraries across the region, or remain …
Conservation Easements As A Forest Management Strategy, C. Edwin Meadows Jr., Donald J. Mansius
Conservation Easements As A Forest Management Strategy, C. Edwin Meadows Jr., Donald J. Mansius
Maine Policy Review
Conservation easements have become an increasingly popular way of protecting private lands that have public value. Maine, like other northeastern states, has a particular interest in conservation strategies given among other things, its natural resource-dependent economy. C. Edwin Meadows, Commissioner of the Maine Department of Conservation (MDOC), and Donald J. Mansius, the Northern Forest Lands Coordinator for MDOC, address the forest management aspects of conservation easements and provide examples of easement land where forest management is permitted. An accompanying sidebar by Chris Spruce describes a conservation easement that has existed for more than a down years along the Penobscot River …
Dickey-Lincoln School Lakes Project At Dickey, Maine : Final Environmental Statement, New England Division, United States Army Engineer Division
Dickey-Lincoln School Lakes Project At Dickey, Maine : Final Environmental Statement, New England Division, United States Army Engineer Division
Dickey-Lincoln School Lakes Project
This document contains those comments and responses on the Revised Draft Environmental Impact Statement. It is a continuation of Volume II published by the Corps in 1978. In addition, it contains reproductions of those letters of comment received on the March 1980 Draft Fish and Wildlife Mitigation Plan, and the responses to these comments.
Dickey-Lincoln School Lakes Project At Dickey, Maine : Final Environmental Statement, Volume 1-4, U. S. Army Engineer Division, New England
Dickey-Lincoln School Lakes Project At Dickey, Maine : Final Environmental Statement, Volume 1-4, U. S. Army Engineer Division, New England
Dickey-Lincoln School Lakes Project
The proposed Dickey-Lincoln School Lakes Project in northern Maine is a multipurpose installation on the St.John River. The combination hydroelectric power and flood control project is located in Aroostook County, Maine, near the Canadian border. The two proposed earth fill dams located at Dickey are 10,200 feet in length with a maximum height of 335 feet. They would impound 7.7 million acre feet of water at a maximum pool elevation 910 feet mean sea level. A second earth filled dam located 11 miles downstream at Lincoln School would serve as a regulatory dam. It would be 2100 feet in lenqth, …
Dickey-Lincoln School Lakes Project Environmental Impact Statement: Appendix K: Fish & Wildlife Mitigation Plan & Impacts (Revised), New England Division, United States Army Engineer Division
Dickey-Lincoln School Lakes Project Environmental Impact Statement: Appendix K: Fish & Wildlife Mitigation Plan & Impacts (Revised), New England Division, United States Army Engineer Division
Dickey-Lincoln School Lakes Project
The proposed plan is comprised of three major segments: terrestrial, fisheries and endangered species. Each segment is essentially a self-contained unit. All costs for the three segments including land acquisition, operation and maintenance and capital equipment, are to be charged to the project and allocated to the project purposes of hydroelectric generation and flood control.