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.
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Showing 1 to 9 of 9 for “"distance to roads"”.
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Aspects of Mammalian Predation on Upland Nesting Waterfowl in Central North Dakota
… of artificial nests was examined in relation to nest density, vegetation cover, distance from roads, active predator dens, and other artificial nests in a plot. Survival of artificial nests was also compared between an area with predator control and one without predator control.</p> …
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The Relationship of Exposure to Traffic-Related Air Pollution With Breast Cancer Incidence, Stage, and Histological Grade In South Carolina Women
… (SCCCR) and United States Census in order to conduct an ecological cross sectional study of exposure to traffic-related air pollutants (measured by residential distance to roads and street density) in relation to breast cancer risk among 10,028 subjects. Subjects were taken from 2000-2006 …
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Factors Affecting Variability in the Distribution of Elephants at Nazinga Game Ranch (Burkina Faso, West Africa)
<p>Seasonal ground total counts were used to estimate elephant (Loxodonta africaca africana) population parameters in Nazinga Game Ranch, Burkina Faso. Remote sensing and GIS technology were used, as well, to relate the species distribution to environmental and anthropogenic variables, which were …
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MULTISCALE EFFECTS OF FOREST ROADS ON BLACK BEARS (URSUS AMERICANUS)
As the vast network of roads continues to expand across the continent, so too does the necessity to understand the associated ecological effects. To appropriately assess the impacts of these roads on wildlife it is necessary to evaluate how they affect ecological processes at multiple spatial and …
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MULTISCALE EFFECTS OF FOREST ROADS ON BLACK BEARS (URSUS AMERICANUS)
As the vast network of roads continues to expand across the continent, so too does the necessity to understand the associated ecological effects. To appropriately assess the impacts of these roads on wildlife it is necessary to evaluate how they affect ecological processes at multiple spatial and …
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Determining habitat and biotic factors driving puma (<i>Puma concolor</i>) space use and underlying dynamic processes (colonization and extinction) over 20 years in protected and private areas throughout Belize, Central America
Despite being a top carnivore, there is relatively scant information on pumas (<i>Puma concolor</i>) in the neotropics especially compared to the more well-studied jaguar (<i>Panthera onca</i>). Understanding long-term puma distribution can affect land management decisions such as appropriate size …
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Snakes as predators of bird nests: now and in a warming world
… in species’ reproductive success is central to many research questions in ecology and evolutionary biology. For most species of birds, nest predation is the primary cause of nest failure and snakes have often been implicated as important nest predators. However, in other studies snakes are …
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Intensive development of New Zealand’s indigenous grasslands: Rates of change, assessments of vulnerability and priorities for protection
… of South Island of New Zealand in order to quantify past rates of conversion to agricultural land use and to develop vulnerability models to predict future conversion spatially and temporally. The study area was delineated using the median spectral reflectance of indigenous grasslands and …
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Temporal, Spatial, and Environmental Influences on the Demographics and Harvest Vulnerability of American Black Bears (Ursus americanus ) in Urban Habitats in New Jersey, Pennsylvania and West Virginia
To date, no research studies in the eastern United States have addressed the spatial ecology of black bears (Ursus americanus) in urban and suburban habitats, and there is limited information regarding black bear space use, habitat selection, and harvest vulnerability. I assessed the harvest …