Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 11 of 11 for “"Gavia"”.
-
Spatial distribution of the common loon (Gavia immer) in New Hampshire
<p>The Common Loon (Gavia immer) is located in many portions of North America. By the early 1970's the Common Loon population in New Hampshire had experienced a dramatic decline in historic numbers. In 1975, the Audubon Society of New Hampshire recognized this problem and established the Loon …
-
A PHYLOGENETIC REEVALUATION OF THE GENUS GAVIA (AVES: GAVIIFORMES) USING NEXT-GENERATION SEQUENCING
… species. The morphological cladogram of <em>Gavia</em> placed <em>G. arctica</em> as a sister species to <em>G. pacifica</em>. However, a more recent study based on mtDNA resulted in a discordant tree splitting the <em>G</em>. <em>arctica</em>/<em>G. pacifica</em> clade, and placed <em>G. …
-
A SURVEY OF THE COMMON LOON (Gavia immer) GENOME REVEALS PATTERNS OF NATURAL SELECTION
… level. I investigated this in common loons (<em>Gavia immer</em>)—for which molecular adaptation has not been characterized—by finding signatures of positive selection as evidence for genomic adaptation.</p> <p>I used Illumina short read sequencing data from a single female common loon to produce …
-
Life-cycle assessment of wastewater treatment plants
… than half of the carbon footprints from the La Gavia WWTP are from the indirect emissions of CO2, which is caused by the intensive energy consumption. The direct emissions of CH4 and N2O combined contribute more than 30 percent of GHG emission. The finally section of the thesis compares the …
-
Assessment of sludge management options in a waste water treatment plant
… uses the LCA software GaBi and focuses on La Gavia Wastewater Treatment Plant in Madrid. This thesis analyzes three sludge management options that La Gavia could have implemented: (1) cogeneration and incineration, (2) cogeneration and land application, and (3) Composting. Life cycle impacts …
-
Estimating Hg Risk to the Common Loon (Gavia immer) in the Rangeley Lakes Region of Western Maine: A Regression Based GIS Model
… research relates Hg levels in the Common Loon (Gavia immer) to a variety of physical factors. Constructed within the framework of a GIS system, this model analyzes the spatial relationships and the influence of physical land cover factors as a function of distance from the individual loon …
-
CHROMOSOMAL SIGNATURES OF AGING, SIBLING STATUS, AND POLLUTANTS: AN EXPLORATION OF COMMON LOON TELOMERE DYNAMICS
… during a long-term study of common loons (<em>Gavia immer</em>). Common loons are piscivorous waterbirds, living sometimes longer than 30 years, and they produce one to two chicks each year after they reach six years of age. The purpose of this study was to explore environmental factors that …
-
The carbon footprint analysis of wastewater treatment plants and nitrous oxide emissions from full-scale biological nitrogen removal processes in Spain
… Two selected WWTPs in Madrid, Spain, i.e. La Gavia and Boadilla, are analyzed and the carbon footprints are calculated, using GaBi software by PE-international. In quantifying the N₂O emissions from the biological nitrogen removal processes in the WWTPs, huge uncertainty on N₂O emission factor …
-
A Demographic and Landscape Analysis for Common Loons in Northwest Montana
Understanding the relationship between a species’ important vital rates and how they respond to environmental factors is essential for developing appropriate conservation strategies. Historically, breeding populations of common loons existed across much of the northwestern United States, but that …
-
A Demographic and Landscape Analysis for Common Loons in Northwest Montana
Understanding the relationship between a species’ important vital rates and how they respond to environmental factors is essential for developing appropriate conservation strategies. Historically, breeding populations of common loons existed across much of the northwestern United States, but that …