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 17 of 17 for “"Population Modeling"”.
-
GIS-based urban land use characterization and population modeling with subpixel information measured from remote sensing data
… model in the urban land use characterization and population modeling, focusing on New Orleans area. Previous research on the V-I-S model used in urban land use classification emphasized on the accuracy improvement while ignoring the discussion of the stability of classifiers. I developed an …
-
A Toxicological Analysis of Exposure Magnitude, Duration, and Frequency and the Significance for Monitoring and Management of Episodic Pollution Events
Information on organism and population effects was then expanded through the use of toxicity and population modeling. Several toxicity models were evaluated against organism effects of single and multiple exposures and appropriate models were used to expand the analysis of organism effects to …
-
Ecology of frontier populations of the invasive grey squirrel (Sciurus carolinensis) in Ireland
… attractive to humans and are able to establish populations with only a few founding individuals, making them a group well suited to performing the role of biological invaders. The eastern grey squirrel (Sciurus carolinensis) is the most commonly introduced squirrel species worldwide. This …
-
Conservation Through Population Assessments Across Variable Landscapes
… threats, conservationists utilize a variety of population viability analyses to both assess and manage species’ health. The results of these analyses often play a key role in determining when intervention is necessary and which actions will be the most successful. Within this dissertation, I …
-
Population dynamics of the Columbia spotted frog (Rana luteiventris): inference from long-term demography
… of climate conditions may affect amphibian populations in complex, unpredictable ways. However, few studies have evaluated effects of climate change on individual vital rates and subsequent population dynamics of amphibians. I investigated the population dynamics of a high elevation …
-
Population dynamics of the Columbia spotted frog (Rana luteiventris): inference from long-term demography
… of climate conditions may affect amphibian populations in complex, unpredictable ways. However, few studies have evaluated effects of climate change on individual vital rates and subsequent population dynamics of amphibians. I investigated the population dynamics of a high elevation …
-
An experimental demographic approach to exotic plant success: <b>Cynoglossum officinale</b> in its native and introduced ranges
… and what particular factors spur increases in population abundance in the introduced versus native range, are not well understood. I conducted parallel experiments in both the native and introduced ranges of a widespread plant invader in North America, houndstongue (<em>Cynoglossum …
-
An experimental demographic approach to exotic plant success: <b>Cynoglossum officinale</b> in its native and introduced ranges
… and what particular factors spur increases in population abundance in the introduced versus native range, are not well understood. I conducted parallel experiments in both the native and introduced ranges of a widespread plant invader in North America, houndstongue (<em>Cynoglossum …
-
Trait-based approaches to understanding the response of forest understory herbs to environmental variation
… can provide valuable insights into how populations and communities will respond to future environmental change. Trait-based approaches can thus offer valuable insights into how populations and communities will respond to environmental change by providing a mechanistic link between plant …
-
Unveiling the X-ray Source Population of the Barred Spiral Galaxy NGC 2336
… a comprehensive study of the X-ray source population in the nearby spiral galaxy NGC 2336, based on nine Chandra observations spanning a 7-month period. A total of 32 X-ray sources were detected down to a limiting luminosity of ∼ 1.4 × 1038 erg s−1 in the 0.5–7.0 keV (broad) energy band. …
-
CyberGIS-enabled reproducible agent-based modeling for scalable emergency evacuation
… typically applied to relatively small areas and populations. In order to make agent-based models scalable to large evacuation areas and population sizes for emergency decision support, it is important to not only effectively harness advanced cyberinfrastructure and geospatial big data, but also …
-
Food–web implications of reintroducing anadromous salmonids in reservoirs on the North Fork Lewis River, Washington
… Lewis River Reservoirs can support reintroduced populations of juvenile salmonids, we evaluated prey supply and consumption demand of resident fishes to estimate the carrying capacity for planktivores. We also evaluated the potential predation impact of Northern Pikeminnow Ptychocheilus …
-
The Effectiveness of Periodically-Harvested Closures in Meeting Ecological and Socioeconomic Objectives
<p>Periodically-harvested fisheries closures (PHCs) are a widespread form of community-based marine spatial management used throughout the Indo-Pacific that also is currently being intensively advocated by conservation organizations for supporting productive fisheries and healthy marine ecosystems. …
-
Amphibian and reptile conservation in a changing environment: Case studies from the southeastern United States
… change, particularly from an increasing human population and climate change, that is likely to impact all remaining natural areas to some degree. In this work, I examine some of the challenges currently facing imperiled species of reptiles and amphibians in this region. The work is focused on …
-
Genetics, demography and modeling of freshwater mussel (Bivalvia: Unionidae) populations in the Clinch River, U.S.A.
… exhibited different trends for long-term population sizes for each species during the Holocene (~10,000 ya to present); namely, E. brevidens has declined over time, E. capsaeformis has remained stable, and L. fasciola has expanded. Long-term effective population size (Ne) was smallest in …
-
Population dynamics of Virginia's hunted black bear (Ursus americanus) population
… and State University (VPI&SU) to investigate population dynamics on Virginia's hunted bear population. CABS personnel handled 746 different bears (1.5M:1F) 1,368 times on its northern study area during June 1994 to September 2000. The sex ratio for summer captures was 1.5M:1F, which differed …
-
Modeling Effects of Mortality on Indiana Bat (Myotis Sodalis) Populations at Wind Energy Facilities
… of this additional mortality on Indiana bat populations. This thesis describes and evaluates the potential effects of wind turbine related mortality on Indiana bat populations over time. Leslie matrix models were used to estimate the growth or decline of a population over time under different …