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Articles 1 - 28 of 28
Full-Text Articles in Physical Sciences and Mathematics
The Conservation Project: An Exploration Of Multimedia In Ocean Conservation, Ilaria Bardini
The Conservation Project: An Exploration Of Multimedia In Ocean Conservation, Ilaria Bardini
Honors College
The Conservation Project ties in many elements of multimedia and its possible applications in marine conservation. The purpose of this thesis was to develop new skills in videography, photography, podcast production, and website development through which to deepen my understanding of the multimedia as a tool in science, through the development of a website.
Assessing The Influence Of Interseeded Cover Crops On Beneficial Arthropod Abundance In A Northeastern Agroecosystem, Charles Cooper
Assessing The Influence Of Interseeded Cover Crops On Beneficial Arthropod Abundance In A Northeastern Agroecosystem, Charles Cooper
Honors College
Conservation agriculture approaches are gaining traction as the planet’s food system grapples with climate change, oil depletion, and rampant environmental degradation (Palm et al., 2014). Cover cropping is an integral practice of conservation agriculture. Ground dwelling arthropods play an important role in agroecosystems, providing ecosystem services including seed predation and nutrient cycling. Because the relationship between cover crops and arthropod abundance are likely influenced by management conditions, I investigated arthropod abundance in a field interseeded with cover crops on a research farm in Maine, United States. Interseeding is an emerging practice in the northeastern United States, with potential to address …
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 …
Maine Cooperative Fish And Wildlife Research Unit And Department Of Wildlife, Fisheries, And Conservation Biology 2020 Report To Cooperators, Maine Cooperative Fish And Wildlife Research Unit, Cynthia S. Loftin, Rena A. Carey
Maine Cooperative Fish And Wildlife Research Unit And Department Of Wildlife, Fisheries, And Conservation Biology 2020 Report To Cooperators, Maine Cooperative Fish And Wildlife Research Unit, Cynthia S. Loftin, Rena A. Carey
General University of Maine Publications
The Maine Cooperative Fish and Wildlife Research Unit and the University of Maine Department of Wildlife, Fisheries, and Conservation Biology are pleased to summarize the past year’s research accomplishments and activities in this annual report. Together, we have collaborated with scientists from State and Federal agencies, universities, and non-governmental organizations on 37 research projects presented in the pages that follow. These collaborative relationships enable us to pose a variety of research questions in interdisciplinary studies to address the resource management information needs of our research sponsors and to advance science in wildlife and fisheries ecology, management, and conservation. We value …
High Net Loss Of Intertidal Wetland Coverage In A Maine Estuary By Year 2100, Jack R. Mclachlan
High Net Loss Of Intertidal Wetland Coverage In A Maine Estuary By Year 2100, Jack R. Mclachlan
Biology and Ecology Faculty Scholarship
Rising sea levels and coastal land use are predicted to synergistically impact coastal wetlands by reducing their extent and ecosystem functioning through a process known as “coastal squeeze”. Impervious surfaces associated with coastal development prevent the natural process of wetland migration, whereby intertidal wetland area is lost at its seaward edge to rising low water lines, but is replaced by eroding uplands and accumulating new wetland at its landward edge. As these constructed surfaces prevent the replacement of lost wetland, intertidal wetlands are “squeezed” by rising sea levels until they disappear. This study uses geographic information system (GIS) to predict …
An Analysis Of Spatio-Temporal Landscape Patterns For Protected Areas In Northern New England: 1099-2010, Spencer Meyer, Mary-Kate Beard-Tisdale, Christopher S. Cronan, Robert Lilieholm
An Analysis Of Spatio-Temporal Landscape Patterns For Protected Areas In Northern New England: 1099-2010, Spencer Meyer, Mary-Kate Beard-Tisdale, Christopher S. Cronan, Robert Lilieholm
Publications
Context: Landscape ecology theory provides insight about how large assemblages of protected areas (PAs) should be configured to protect biodiversity. We adapted these theories to evaluate whether the emergence of decentralized land protection in a largely private landscape followed the principles of reserve design. Objectives: Our objectives were to determine: (1) Are there distinct clusters of PAs in time and space? (2) Are PAs becoming more spatially clustered through time? and (3) Does the resulting PA portfolio have traits characteristic of ideal reserve design? Methods: We developed an historical dataset of the PAs enacted since 1900 in the northern New …
Senator George J. Mitchell Lecture On Sustainability, Senator George J. Mitchell Center For Sustainability Solutions
Senator George J. Mitchell Lecture On Sustainability, Senator George J. Mitchell Center For Sustainability Solutions
Cultural Affairs Distinguished Lecture Series
On Thursday, October 15, 2015 the Senator George J. Mitchell Center for Sustainability Solutions will host the 2015 Senator George J. Mitchell Lecture on Sustainability. This event is free and open to all. It will take place at 1pm at Wells Conference Center on the University of Maine campus. Roger A. Pielke, Jr., a key thought leader on effective roles for scientists in political debates and the formulation of public policy, will be the keynote speaker. Senator Mitchell will provide remarks.
The central mission of the Mitchell Center is to serve as a leader and valued partner in understanding and …
Maine Healthy Beaches Program: Summary Report Of Enhanced Monitoring And Pollution Source Tracking Efforts In The New Salt Rd. Tributary, Goosefare Brook, Old Orchard Beach, Maine 2012-2014, M. Sims, K. Kaczor
Maine Sea Grant Publications
The Goosefare Brook forms the border between the towns of Saco to the south and Old Orchard Beach (OOB) to the north. Maine Healthy Beaches (MHB) has supported multi-year enhanced monitoring and pollution source tracking efforts, held Stakeholder Workshops, and more to address impaired water quality throughout the watershed. Over the past three years, MHB has focused primarily on OOB’s New Salt Rd. Tributary (NSRT). In 2014, 180 enterococci (ENT) samples at 17 sites and 149 optical brightener (OB) samples at 16 sites were analyzed. ENT values ranged from6,490 MPN/100mls with a combined geometric mean of 275 MPN for all …
Cnh: Fine-Scale Dynamics Of Human Adaptation In Coupled Natural And Social Systems: An Integrated Computational Approach Applied To Three Fisheries, James A. Wilson, James Acheson, Robert Steneck, Yong Chen, Teresa R. Johnson
Cnh: Fine-Scale Dynamics Of Human Adaptation In Coupled Natural And Social Systems: An Integrated Computational Approach Applied To Three Fisheries, James A. Wilson, James Acheson, Robert Steneck, Yong Chen, Teresa R. Johnson
University of Maine Office of Research Administration: Grant Reports
The purpose of this project is to gain a better understanding of the way competition between individual fishermen lead to the emergence of private incentives and informal social arrangements that are (or are not) consistent with conservation of the resource. These informal arrangements and incentives are important because they help us understand the extent to which private interests might strengthen or weaken on-going resource management and, consequently, the sustainability of coupled human and natural systems. The broad hypothesis driving the study is that the informal social structure that emerges from competitive interactions among fishermen reflects the particular circumstances of the …
Reu Site: Explore It! Building The Next Generation Of Sustainable Forest Bioproduct Researchers, David Neivandt, Darrell W. Donahue
Reu Site: Explore It! Building The Next Generation Of Sustainable Forest Bioproduct Researchers, David Neivandt, Darrell W. Donahue
University of Maine Office of Research Administration: Grant Reports
The major goal of the project is to create the next generation of sustainable forest bioproduct researchers through providing them with an outstanding and relevant research experience.
Conserving Maine's Unique Natural Resource: Monitoring, Outreach, And Education On Our Sand Beaches, Kristen Grant
Conserving Maine's Unique Natural Resource: Monitoring, Outreach, And Education On Our Sand Beaches, Kristen Grant
University of Maine Office of Research Administration: Grant Reports
Objective I: Provide comprehensive volunteer monitoring of southern Maine beaches to improve state and municipal access to the quality-controlled beach elevation data, on a monthly and pre/post storm basis.
Objective II: Strengthen partnerships among beach profile monitoring stakeholders
Objective III: Expand teaching and learning opportunities for beach stakeholders by facilitating presentations by a range of new perspectives to constituents at the 2013 Maine Beaches Conference.
Objective IV: Publish and disseminate new and expanded data in the Maine Geological Survey’s biannual State o f Maine’s Beaches reports in 2013 and 2015.
Habitat Occupancy Of Rusty Blackbirds (Euphagus Carolinus) Breeding In Northern New England, Usa, Luke L. Powell, Thomas P. Hodgman, Ian J. Fiske, William E. Glanz
Habitat Occupancy Of Rusty Blackbirds (Euphagus Carolinus) Breeding In Northern New England, Usa, Luke L. Powell, Thomas P. Hodgman, Ian J. Fiske, William E. Glanz
Biology and Ecology Faculty Scholarship
The Rusty Blackbird (Euphagus carolinus), an uncommon songbird often associated with northern coniferous wetlands, has experienced a precipitous population decline since at least the early 20th century. Here, we provide the first analysis of breeding-habitat occupancy at the wetland scale and make recommendations for streamlined monitoring. We modeled occupancy and detectability as a function of site (i.e. habitat-based) and sampling (i.e. visit-specific) variables collected at 546 wetlands in northern New England, USA. Wetland occupancy (mean 6 SE ¼ 0.07 6 0.02 in randomly selected wetlands, and 0.12 6 0.02 in all wetlands surveyed) was best explained by variables …
Ecology Of The Bay / Écologie De La Baie, Downeast Fisheries Trail, Roosevelt-Campobello International Park
Ecology Of The Bay / Écologie De La Baie, Downeast Fisheries Trail, Roosevelt-Campobello International Park
Maine Sea Grant Publications
At the mouth of the St. Croix River, Passamaquoddy Bay lies along the border of Downeast Maine and coastal Charlotte County, New Brunswick.
Passamaquoddy Bay is influenced by the extreme twice-daily tides and strong currents that bring nutrients from the deep ocean into the Bay of Fundy, creating a rich feeding ground for fin, minke, and humpback whales, and the endangered North Atlantic right whale.
Land Conservation In The Northeastern United States: An Assessment Of Historic Trends And Current Conditions, Robert J. Lilieholm, Spencer R. Meyer, Michelle L. Johnson, Christopher S. Cronan
Land Conservation In The Northeastern United States: An Assessment Of Historic Trends And Current Conditions, Robert J. Lilieholm, Spencer R. Meyer, Michelle L. Johnson, Christopher S. Cronan
Publications
This article discusses the evolution of land conservation efforts and outcomes in the Northeast, examine major drivers of landscape change, and review key conservation tools that have been used to protect public values at the local and landscape levels. We then assess the current status of land conservation, and draw lessons for other regions facing conservation challenges across mixed ownership landscapes under varying development and land-use pressures. Finally, we explore new and emerging trends in the factors driving land development and conservation activities in an effort to assess the challenges that lie ahead.
Lake Site Assessments: Us Epa Time-New England Lakes, Sarah J. Nelson, Adam Baumann, Alesha Coffin, Ken Johnson, Catherine Schmitt, Kristin Strock
Lake Site Assessments: Us Epa Time-New England Lakes, Sarah J. Nelson, Adam Baumann, Alesha Coffin, Ken Johnson, Catherine Schmitt, Kristin Strock
Forest Resources Faculty Scholarship
TIME (Temporally Integrated Monitoring of Ecosystems) is a statistically selected population of lakes in New Eng- land and the Hudson Valley (31 lakes) and the Adirondacks (43 lakes) that were selected from the original 1991 EMAP-SW (Environmental Monitoring and Assessment Program–Surface Waters) population with acid neutralizing capacity less than 100 meq/L (Young & Stoddard 1996). Samples are taken annually, during a summer base-flow ‘index period’. This sampling strategy is used to reduce hydrologic impact on water chemistry and hence provide an assessment of trends in chemistry with the least number of samples (e.g., Stoddard et al. 2003).
The EMAP program …
Beginning With Habitat: Building A Regional Landscape Wayne, Maine Department Of Inland Fisheries & Wildlife
Beginning With Habitat: Building A Regional Landscape Wayne, Maine Department Of Inland Fisheries & Wildlife
Maine Town Documents
The data presented here represents a compilation of core Beginning with Habitat map products. Comprehensive field surveys do not exist for all areas in Maine, so some important habitats may not be mapped. Habitat features on this map are based on limited field surveys, aerial photo interpretation, and computer modeling. Habitat data is updated regularly . Map users should consult with the Beginning with Habitat program to verify that data illustrated on this map is still current prior to utilizing it for planning decisions.
Additional maps attached include:
Water Resources & Riparian Habitats
High Value Plant & Animal Habitats
Undeveloped …
Agent-Based Modeling Of Harvest Decisions By Small Scale Forest Landowners In Maine, Usa, Jessica Leahy, Erika Reeves, Kathleen Bell, Crista L. Straub, Jeremy Wilson
Agent-Based Modeling Of Harvest Decisions By Small Scale Forest Landowners In Maine, Usa, Jessica Leahy, Erika Reeves, Kathleen Bell, Crista L. Straub, Jeremy Wilson
Publications
Small-scale forests are an excellent example of coupled social-ecological systems, which involve human and biophysical subsystems with complex two-way feedback interactions. The multifaceted nature of landowner decisions drives a significant need to better understand decision-making processes, reactions to policy, and combined impacts on ecosystems in a comprehensive manner. Small-scale forests require an integrated approach to modeling the social and biophysical components comprehensively. Agent-based modeling involves modeling individualistic behavior and interpreting patterns that emerge. The interaction between agents and their environments makes this a valuable tool to assess repeated decisions of individual landowners responding to changing environmental conditions. Agent-based models can …
State Of Maine's Beaches In 2013, Peter A. Slovinsky, Stephen M. Dickson, Rachel E. Dye
State Of Maine's Beaches In 2013, Peter A. Slovinsky, Stephen M. Dickson, Rachel E. Dye
Maine Sea Grant Publications
The 2013 State of Maine’s Beaches Report is the 4th report in a consecutive series of reports coinciding with the Maine Beaches Conference from 2007, 2009, and 2011. The purpose of the report is to summarize major observed morphologic characteristics and changes of Maine beaches that are monitored as part of the State of Maine Beach Profiling Project (SMBPP, Maine Sea Grant Extension, 2003). The SMBPP utilizes trained volunteers to collect monthly beach profiles which start at a known point or benchmark (usually in the frontal dune or in a seawall) and continue shore-perpendicular to roughly the low water line. …
University Of Maine Integrated Forest Product Refinery (Ifpr) Technology Research, Hemant P. Pendse
University Of Maine Integrated Forest Product Refinery (Ifpr) Technology Research, Hemant P. Pendse
University of Maine Office of Research Administration: Grant Reports
This project supported research on science and technology that forms a basis for integrated forest product refinery for co-production of chemicals, fuels and materials using existing forest products industry infrastructure. Clear systems view of an Integrated Forest Product Refinery (IFPR) allowed development of a compelling business case for a small scale technology demonstration in Old Town, ME for co-production of biofuels using cellulosic sugars along with pulp for the new' owners of the facility resulting in an active project on Integrated Bio-Refinery (IBR) at the Old Town Fuel & Fiber. Work on production of advanced materials from woody biomass has …
Home Ranges Of Rusty Blackbirds Breeding In Wetlands: How Much Would Buffers From Timber Harvest Protect Habitat?, Luke L. Powell, Thomas P. Hodgman, William E. Glanz
Home Ranges Of Rusty Blackbirds Breeding In Wetlands: How Much Would Buffers From Timber Harvest Protect Habitat?, Luke L. Powell, Thomas P. Hodgman, William E. Glanz
Biology and Ecology Faculty Scholarship
We calculated the home ranges and core areas of 13 adult Rusty Blackbirds (Euphagus carolinus) in Maine to determine (1) the area requirements of breeding adults, (2) whether area requirements of the sexes and of colonial and noncolonial individuals differ, and (3) the proportion of the home range and core area that would be protected by a buffer of no logging of 50–100 m around occupied wetlands. Mean home ranges (37.5 ± 12.6 ha) and core areas (11.1 ± 2.8 ha) were large in comparison to those of other breeding icterids, and adults often foraged in multiple unconnected wetlands. Rusty …
Nest-Site Selection And Nest Survival Of The Rusty Blackbird: Does Timber Management Adjacent To Wetlands Create Ecological Traps?, Luke L. Powell, Thomas P. Hodgman, William E. Glanz, James D. Osenton, Caleb M. Fisher
Nest-Site Selection And Nest Survival Of The Rusty Blackbird: Does Timber Management Adjacent To Wetlands Create Ecological Traps?, Luke L. Powell, Thomas P. Hodgman, William E. Glanz, James D. Osenton, Caleb M. Fisher
Biology and Ecology Faculty Scholarship
Animals are subject to ecological traps when anthropogenic changes create habitat that appears suitable but when selected results in decreased fitness. The Rusty Blackbird (Euphagus carolinus) breeds in boreal wetlands and has declined by 85–95% over the last half century. We studied nest-site selection and daily nest survival rate (DSR) of 43 Rusty Blackbird nests in northern New England and evaluated whether regenerating logged areas adjacent to wetlands created ecological traps. Although nesting adults avoided high-canopied forests and selected areas with dense balsam fir (Abies balasmea) 1 to 3 m high, those characteristics were not associated …
Study Targets Striped Bass, Catherine V. Schmitt
Study Targets Striped Bass, Catherine V. Schmitt
Maine Sea Grant Publications
This article in the Bangor Daily News profiles the Sea Grant-funded research of Dr. Joe Zydlewski, who is studying the striped bass population in the Penobscot River. A must read for all striper fans.
Alewives: Feast Of The Season, Catherine V. Schmitt
Alewives: Feast Of The Season, Catherine V. Schmitt
Maine Sea Grant Publications
Alewives are sea-run, or diadromous, fish that spend most of their lives in the Atlantic Ocean but return as adults to coastal rivers in spring to spawn in freshwater streams and ponds. This article in Maine Boats, Homes, & Harbors magazine discusses the natural and cultural history of Maine's native runs of alewives and other sea-run fish.
The Salters Of Stanley Brook, Catherine V. Schmitt
The Salters Of Stanley Brook, Catherine V. Schmitt
Maine Sea Grant Publications
No abstract provided.
Memorandum Of Understanding Orono Bog Boardwalk Project, Orono Land Trust, Inc., University Of Maine College Of Natural Sciences, Forestry And Agriculture, Ronald B. Davis, Edward A. Barrett, Bruce Wiersma, Jeremy E. Johnson
Memorandum Of Understanding Orono Bog Boardwalk Project, Orono Land Trust, Inc., University Of Maine College Of Natural Sciences, Forestry And Agriculture, Ronald B. Davis, Edward A. Barrett, Bruce Wiersma, Jeremy E. Johnson
Dean of the College of Natural Sciences, Forestry, and Agriculture
Memorandum of Understanding for the Orono Bog Boardwalk Project between the Orono Land Trust, Inc. Orono, Maine, College of Natural Sciences, Forestry and Agriculture of the University of Maine, City of Bangor, Maine, and Ronald B. Davis, Orono, Maine.
Biological Inventories Of Schoodic And Corea Peninsulas, Coastal Maine, 1996, Willaim E. Glanz, Bruce Connery, Norman Famous, Glen Mittelhauser, Melissa Perera, Marcia Spencer-Famous, Guthrie Zimmerman
Biological Inventories Of Schoodic And Corea Peninsulas, Coastal Maine, 1996, Willaim E. Glanz, Bruce Connery, Norman Famous, Glen Mittelhauser, Melissa Perera, Marcia Spencer-Famous, Guthrie Zimmerman
Biology and Ecology Faculty Scholarship
This project was designed to complete a preliminary biological inventory of US Navy and Acadia National Park lands on Schoodic and Corea Peninsulas in coastal Maine, with the overall goal of providing the Navy and the National Park Service with natural resource information sufficient for management decisions. In this region, lands administered by these agencies are adjacent to each other and present a unique opportunity to cooperatively assess and manage natural resources.
Prior to 1994, basic biological information on the Schoodic Peninsula region was scarce. A preliminary biological inventory was undertaken in 1994, which surveyed amphibians and reptiles, terrestrial mammals, …
An Evaluation Of An Avian Diversity Model, Tansy Lynn Wagner
An Evaluation Of An Avian Diversity Model, Tansy Lynn Wagner
Honors College
Diversity exists at all temporal and spatial scales but has been studied largely at the community level because of the limited availability of regional or nation-wide data. In the U.S. both the Breeding Bird Survey (BBS) and the Breeding Bird Census (BBC) provide large-scale observations of avian populations over periods of decades and offer a potential source of information. A large-scale model of avian diversity based on the BBS has been developed by O'Connor et. al.(1996). The BBC serves as a source for independently obtained species richness estimates used to evaluate the ability of the model to generate corresponding predictions. …
Damariscotta River Estuary: A Management Plan, Fran Rudoff, Jenny Ruffing, Tom Ford
Damariscotta River Estuary: A Management Plan, Fran Rudoff, Jenny Ruffing, Tom Ford
Documents from Environmental Organizations
One purpose ofthe Damariscotta River Estuary Project has been to ask and answer these and other questions. A second and equally important purpose ofthe Project has been to help the seven estuary communities improve communication and the ability to coordinate land and water use decisions to ensure the future good health of the estuary’s resources.