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Articles 1 - 12 of 12
Full-Text Articles in Life Sciences
Genetic Diversity In Helianthus Annuus: Selective Breeding And Induced Mutagenesis, Dillon Holton
Genetic Diversity In Helianthus Annuus: Selective Breeding And Induced Mutagenesis, Dillon Holton
Thinking Matters Symposium
H. annuus, more commonly known as the sunflower, is a single species that has many different variations. Traits have been selectively bred for hundreds of years in order to produce a beautiful flower as well as essential agricultural products. Recently interest in the sunflower as a food and fuel crop has led to selective breeding of seeds that produce high yields of sunflower oil. To further push the limits of this plant's genome, researchers have used mutagenesis to force mutations in hopes of developing novel modifications that could increase yield. With the entire genome mapped, the goal for many research …
Diversity Of Nitrogen Fixing Bacteria In A Sample Aquaponics Ecosystem, Joshua Trombley, Haley Depner
Diversity Of Nitrogen Fixing Bacteria In A Sample Aquaponics Ecosystem, Joshua Trombley, Haley Depner
Thinking Matters Symposium Archive
In natural ecosystems, nitrogen-fixing bacteria act as the primary source of useable nitrogen for many plants by converting atmospheric N2 into ammonia. In an aquaponics system, however, the primary source of ammonia is provided by fish waste. We are investigating the effect of this ammonia saturation on the diversity of nitrogen-fixing bacteria in a sample aquaponics system. We seek to answer two fundamental questions: First, what nitrogen fixing microbes are present in these systems? Second, does the character of these microbial communities have any effect on plant growth? In order to answer these questions, we first determine whether nitrogen-fixing bacteria …
Comparing Methods And Technologies For Assessing Vertical Size Distribution Of American Beech Leaves (Fagus Grandifolia Ehrh), Adeline Casali
Comparing Methods And Technologies For Assessing Vertical Size Distribution Of American Beech Leaves (Fagus Grandifolia Ehrh), Adeline Casali
Thinking Matters Symposium Archive
The American beech (Fagus grandifolia Ehrh) is a deciduous species that occurs throughout the eastern United States and Southeast Canada. This species grows 20–35 meters in height and is tolerant of a range of environmental conditions. Because beech occurs over a wide geographical and ecological range, it is ideal for comparative studies between sites or environmental conditions. Here we report on the relative size of beech leaves collected from different heights above the forest floor. We then determine if morphological trends between upper and lower canopy were consistent between live fall leaves and senesced mid-winter leaves that remain attached to …
Influence Of Indirect Cues And Vegetation Density On Foraging Behavior In Snowshoe Hares (Lepus Americanus), Zachary Lankist
Influence Of Indirect Cues And Vegetation Density On Foraging Behavior In Snowshoe Hares (Lepus Americanus), Zachary Lankist
Thinking Matters Symposium Archive
Prey avoid chemical cues from predators at feeding sites because the risk of death outweighs the benefit of food. However, we lack information regarding avoidance of chemical cues from competitors as well as how foraging behavior changes alongside vegetative cover. To test if chemical cues and vegetative cover alter prey vigilance, number of visits, and time spent at feeding sites, I observed snowshoe hares (Lepus americanus) in plots containing coyote (Canis latrans; predator) and moose (Alces alces; competitor) urine across a spectrum of vegetation densities. Snowshoe hares significantly reduced the number of visits to feeding plots when coyote or moose …
Dna Barcoding Reveals A New Morphotype Of The Sugar Kelp, Saccharina Latissima, Dallin Brimley, Zakery Ford, Travis Gould, Brandon Guerra, Emily Haggett, Ian Jones, Elyse Johnson, Ken Peterson, Matthew Prout
Dna Barcoding Reveals A New Morphotype Of The Sugar Kelp, Saccharina Latissima, Dallin Brimley, Zakery Ford, Travis Gould, Brandon Guerra, Emily Haggett, Ian Jones, Elyse Johnson, Ken Peterson, Matthew Prout
Thinking Matters Symposium Archive
Phytoplankton blooms follow predictable annual cycles in the Gulf of Maine, characterized by a large spring bloom and a smaller bloom in the fall. Marine phytoplankton form the foundation of primary production in Gulf of Maine waters, and thus community changes in composition, and abundance could have cascading effects on our coastal ecosystems.
We set out to monitor the community composition, diversity, and abundance of the spring micro-phytoplankton bloom, at a Friends of Casco Bay water quality monitoring site, in South Portland, Maine. The Gulf of Maine is experiencing accelerated warming rates, and this type of monitoring can aid in …
Maine's Endangered And Threatened Plants, Maine State Planning Office
Maine's Endangered And Threatened Plants, Maine State Planning Office
Maine Collection
Maine's Endangered and Threatened Plants
Executive Department, Maine State Planning Office, Critical Areas Program, 1990.
Rare Vascular Plants Of Maine : A Critical Areas Program Report, Susan C. Gawler, L. M. Eastman
Rare Vascular Plants Of Maine : A Critical Areas Program Report, Susan C. Gawler, L. M. Eastman
Maine Collection
Rare Vascular Plants of Maine : A Critical Areas Program Report
Based on Rare Vascular Maine Plants (1978) with Additional Herbarium Data and Rare Plants Information by L.M. Eastman.
Introduction, Criteria, Annotated Rare Plant List, Species Accounts, Additional Herbarium Data, County & Town Index Editing by Susan C. Gawler.
Executive Department, State Planning Office, 189 State Street, Augusta, Maine, 04333 (June 1981).
Contents: Acknowledgements / List of Tables / List of Figures / Part One: Introduction / Part Two: List of the Rare Vascular Plants of Maine / Part Three: Species Accounts / Part Four: Subspecific Taxa / Appendices / …
Botanical And Ecological Aspects Of Coastal Raised Peatlands In Maine : And Their Relevance To The Critical Areas Program Of The State Planning Office, Ian A. Worley
Maine Collection
Botanical and Ecological Aspects of Coastal Raised Peatlands in Maine : and Their Relevance to the Critical Areas Program of the State Planning Office.
by Ian A. Worley
A Report Prepared for the Maine Critical Areas Program, State Planning Office, 184 State Street, Augusta, Maine 04333.
Planning Report No. 69 (January 1980)
Contents: Foreword / Abstract / Table of Contents / List of Figures / List of Tables / Acknowledgements / Introduction / Natural History and Ecology of the Coastal Raised Peatlands / Selection of Coastal Peatlands Recommended for Evaluation by the Critical Areas Program / General Evaluation of Coastal …
Geological And Botanical Features Of Sand Beach Systems In Maine And Their Relevance To The Critical Areas Program Of The State Planning Office, Bruce W. Nelson, L. Kenneth Fink Jr.
Geological And Botanical Features Of Sand Beach Systems In Maine And Their Relevance To The Critical Areas Program Of The State Planning Office, Bruce W. Nelson, L. Kenneth Fink Jr.
Maine Collection
Geological and Botanical Features of Sand Beach Systems in Maine and Their Relevance to the Critical Areas Program of the State Planning Office
by Bruce W. Nelson and L. Kenneth Fink, Jr.
"A Report Prepared for the Maine Critical Areas Program, State Planning Office, Augusta, Maine 04330 - Planning Report Number 54 (14 March 1978)."
Contents: Abstract / Foreword / Acknowledgements / Geology, Distribution, and Geomorphology of Maine's Coastal Sandy Beaches and Dune Systems / Methods of Locating Sandy Beaches and Dunes / General Consideration in Developing Criteria for Inclusion in the List of Significant Coastal Sandy Beaches and Dunes …
Beach Vegetation And Oceanic Processes Study Of Popham State Park Beach, Reid State Park Beach, And Small Pt. Beach, Philip Trudeau, Paul J. Godfrey, Barry S. Timson
Beach Vegetation And Oceanic Processes Study Of Popham State Park Beach, Reid State Park Beach, And Small Pt. Beach, Philip Trudeau, Paul J. Godfrey, Barry S. Timson
Maine Collection
Beach Vegetation and Oceanic Processes Study of Popham State Park Beach, Reid State Park Beach, and Small Pt. Beach
by Philip Trudeau, Paul J. Godfrey and Barry S. Timson
"Prepared Under Cooperative Agreement Between the Maine Department of Conservation and the Soil Conservation Service, United States Department of Agriculture, September 1977."
On Cover: Time and Tide Resource Conservation and Development Project.
Contents: List of Figures / List of Tables / Introduction / Plant Community Research / Oceanic Processes / Historic Analysis of Barrier Beach Movement and Erosion / Dune Dynamics / Suggestions for Long Term Management / Appendices A - …
Moss: Flora Of Maine, Robert N. Miller
Moss: Flora Of Maine, Robert N. Miller
Maine Collection
Moss: Flora of Maine
by Robert N. Miller
Gorham State Teachers College, Gorham, Maine, 1951.
Contents: What Are Mosses? / Moss Groups / Suggestions for Collecting, Mounting and Preservation of Moss Specimens / Over-All Pictures of the Capsules and Setae / Types of Leaves / Glossary / Outline Key to Some Maine Mosses
Plants Of Maine: Our Native Flora & Some Notes On Maine Cattle, F. Lamson Scribner
Plants Of Maine: Our Native Flora & Some Notes On Maine Cattle, F. Lamson Scribner
Maine Collection
Plants of Maine: Our Native Flora & Some Notes on Maine Cattle
by F. Lamson Scribner
Two articles originally published in "Agriculture of Maine 1874-5, 19th Annual Report of the Secretary of the Maine Board of Agriculture."
Contents:Ornamental and Useful Plants of Maine / Some Notes on Maine Cattle