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Ecology and Evolutionary Biology Commons™
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Articles 1 - 5 of 5
Full-Text Articles in Ecology and Evolutionary Biology
Evolution Of Breeding Plumages In Birds: A Multiple-Step Pathway To Seasonal Dichromatism In New World Warblers (Aves: Parulidae), Ryan S. Terrill, Glenn F. Seeholzer, Jared D. Wolfe
Evolution Of Breeding Plumages In Birds: A Multiple-Step Pathway To Seasonal Dichromatism In New World Warblers (Aves: Parulidae), Ryan S. Terrill, Glenn F. Seeholzer, Jared D. Wolfe
Michigan Tech Publications
Ecology and Evolution published by John Wiley & Sons Ltd Many species of birds show distinctive seasonal breeding and nonbreeding plumages. A number of hypotheses have been proposed for the evolution of this seasonal dichromatism, specifically related to the idea that birds may experience variable levels of sexual selection relative to natural selection throughout the year. However, these hypotheses have not addressed the selective forces that have shaped molt, the underlying mechanism of plumage change. Here, we examined relationships between life-history variation, the evolution of a seasonal molt, and seasonal plumage dichromatism in the New World warblers (Aves: Parulidae), a …
Multiscale Collection And Analysis Of Submerged Aquatic Vegetation Spectral Profiles For Eurasian Watermilfoil Detection, Colin Brooks, Amanda Grimm, Amy Marcarelli, Richard Dobson
Multiscale Collection And Analysis Of Submerged Aquatic Vegetation Spectral Profiles For Eurasian Watermilfoil Detection, Colin Brooks, Amanda Grimm, Amy Marcarelli, Richard Dobson
Michigan Tech Publications
The ability to differentiate a non-native aquatic plant, Myriophyllum spicatum (Eurasian watermilfoil or EWM), from other submerged aquatic vegetation (SAV) using spectral data collected at multiple scales was investigated as a precursor to mapping of EWM. Spectral data were collected using spectroradiometers for SAV taken out of the water, from the side of a boat directly over areas of SAV and from a lightweight portable radiometer system flown from an unmanned aerial system (UAS). EWM was spectrally different from other SAV when using 651 spectral bands collected in ultraviolet to near-infrared range of 350 to 1000 nm but does not …
Effects Of Soil Nitrogen On Diploid Advantage In Fireweed, Chamerion Angustifolium (Onagraceae), Alex L. Bales, Erika Hersch-Green
Effects Of Soil Nitrogen On Diploid Advantage In Fireweed, Chamerion Angustifolium (Onagraceae), Alex L. Bales, Erika Hersch-Green
Department of Biological Sciences Publications
In many ecosystems, plant growth and reproduction are nitrogen limited. Current and predicted increases of global reactive nitrogen could alter the ecological and evolutionary trajectories of plant populations. Nitrogen is a major component of nucleic acids and cell structures, and it has been predicted that organisms with larger genomes should require more nitrogen for growth and reproduction and be more negatively affected by nitrogen scarcities than organisms with smaller genomes. In a greenhouse experiment, we tested this hypothesis by examining whether the amount of soil nitrogen supplied differentially influenced the performance (fitness, growth, and resource allocation strategies) of diploid and …
Resiliency And Collapse: Lake Trout, Sea Lamprey, And Fisheries Management In Lake Superior, Nancy Langston
Resiliency And Collapse: Lake Trout, Sea Lamprey, And Fisheries Management In Lake Superior, Nancy Langston
Michigan Tech Publications
No abstract provided.
Development Of A Bi-National Great Lakes Coastal Wetland And Land Use Map Using Three-Season Palsar And Landsat Imagery, Laura Bourgeau-Chavez, Sarah L. Endres, Michael Battaglia, Mary Ellen Miller, Elizabeth Banda, Zachary Laubach, Phyllis Higman, Pat Chow-Fraser, James Marcaccio
Development Of A Bi-National Great Lakes Coastal Wetland And Land Use Map Using Three-Season Palsar And Landsat Imagery, Laura Bourgeau-Chavez, Sarah L. Endres, Michael Battaglia, Mary Ellen Miller, Elizabeth Banda, Zachary Laubach, Phyllis Higman, Pat Chow-Fraser, James Marcaccio
Michigan Tech Research Institute Publications
Methods using extensive field data and three-season Landsat TM and PALSAR imagery were developed to map wetland type and identify potential wetland stressors (i.e., adjacent land use) for the United States and Canadian Laurentian coastal Great Lakes. The mapped area included the coastline to 10 km inland to capture the region hydrologically connected to the Great Lakes. Maps were developed in cooperation with the overarching Great Lakes Consortium plan to provide a comprehensive regional baseline map suitable for coastal wetland assessment and management by agencies at the local, tribal, state, and federal levels. The goal was to provide …