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Articles 391 - 400 of 400
Full-Text Articles in Entire DC Network
Site-Specific Habitat And Landscape Associations Of Rusty Blackbirds Wintering In Louisiana, Sinead Mary Borchert
Site-Specific Habitat And Landscape Associations Of Rusty Blackbirds Wintering In Louisiana, Sinead Mary Borchert
LSU Master's Theses
The Rusty Blackbird (Euphagus carolinus) has gained notoriety in recent years as one of the fastest declining North American bird species, with a global population loss of as much as 95%. Causes of the decline are not completely understood, but the high rate of forested wetland change in the southeastern United States suggests that wintering habitat degradation may be a primary driver. To better inform management on critical wintering grounds, I surveyed 68 sites in Louisiana where Rusty Blackbirds had been known to occur to address how occupancy changes with habitat type and colonization and extinction rates vary with ground …
Parasites Within Parasites: Transmission And Evolution Of Neorickettsia In Digeneans, Stephen Edward Greiman
Parasites Within Parasites: Transmission And Evolution Of Neorickettsia In Digeneans, Stephen Edward Greiman
Theses and Dissertations
Digeneans are endoparasitic flatworms with complex life cycles that involve two or more different animals as definitive and intermediate hosts. Some digenean species harbor bacterial endosymbionts belonging to the genus Neorickettsia (Order: Rickettsiales, Family: Anaplasmataceae). Neorickettsia occur in all life cycle stages of digeneans and are maintained by vertical transmission. Far from benign however, Neorickettsia may also be transmitted horizontally by digenean parasites to their vertebrate definitive hosts. Once inside, Neorickettsia can infect macrophages and other cell types. For some vertebrate species (e.g. dogs, horses and humans), neorickettsial infections cause severe disease. With a few exceptions, studies of Neorickettsia have …
Creating A Foundation For The Causal Relationship Between Libraries And Learning: A Proposed Application Of Nursing And Public Health Research Methods, Marcia A. Mardis, Sylvia K. Norton, Gail K. Dickinson, Shana Pribesh, Allison Cline, Sue Kimmel, Jody Howard
Creating A Foundation For The Causal Relationship Between Libraries And Learning: A Proposed Application Of Nursing And Public Health Research Methods, Marcia A. Mardis, Sylvia K. Norton, Gail K. Dickinson, Shana Pribesh, Allison Cline, Sue Kimmel, Jody Howard
Teaching & Learning Faculty Publications
Thomas Cook, a renowned causal research expert and professor of sociology, psychology, education, and social policy at Northwestern University (USA), called for school library researchers to parallel causality determination efforts in health-related fields. In this paper, we respond to Dr. Cook’s challenge with a proposed research design centered on Mixed Research Synthesis (MRS) as part of process validated by the U.S. Department of Education and National Science Foundation’s Common Guidelines for Education Research and Development. MRS studies, often used in nursing and public health research to develop causal theories, enable researchers to develop evidence summaries; identify and adjudicate rival and …
Dendrotempestology: Identifying The Statistical Relationship Between Hurricanes And Tree Growth In The Pine Savannas Of Coastal Mississippi, Clay Stephens Tucker
Dendrotempestology: Identifying The Statistical Relationship Between Hurricanes And Tree Growth In The Pine Savannas Of Coastal Mississippi, Clay Stephens Tucker
LSU Master's Theses
Hurricanes cause massive destruction of property and land through high wind speeds, high precipitation, and flooding from storm surge inundation. Hurricane Katrina produced nearly an 8.5 meter-high storm surge at Pass Christian, Mississippi. The envelope of high water from Hurricane Katrina covered a large area of the Gulf Coast including, but not limited to, the area from the Atchafalaya Bay in Louisiana to Mobile Bay in Alabama. This study assesses the relationship between hurricane characteristics (i.e., storm surge and maximum wind) and tree growth using coastal pine tree cores taken in Grand Bay National Estuarine Research Reserve (GBNERR). GBNERR, an …
The Effects Of Tropical Storms And Hurricanes On Phytoplankton And Nutrient Concentrations In Wetland-Estuary Transition Zones Along The Gulf Coast, Tiffany Chantelle Johnson
The Effects Of Tropical Storms And Hurricanes On Phytoplankton And Nutrient Concentrations In Wetland-Estuary Transition Zones Along The Gulf Coast, Tiffany Chantelle Johnson
LSU Master's Theses
Two consecutive storms made landfall along the Northern Gulf of Mexico on June and August 2012 (Tropical Storm Debby, 06/26/2012; Isaac, 08/28/2012, Category (Cat) 1 Saffir-Simpson Hurricane Scale). Each storm passed within 48 to 273 km of one of seven wetland-estuary transition zone sampling sites, and indirect storm effects associated with changes in freshwater discharge and an inflow of inorganic nutrients were observed at five of the seven sites. To assess the impacts of the 2012 hurricanes on hydrology, nutrient concentrations, and phytoplankton concentrations at transition zones along the Gulf Coast, a within-sites analysis along with a seasonal analysis were …
Scales Of Resilience: Community Stability, Population Dynamics, And Molecular Ecology Of Brook Trout In A Riverscape After A Large Flood, Erin V. Rodgers
Scales Of Resilience: Community Stability, Population Dynamics, And Molecular Ecology Of Brook Trout In A Riverscape After A Large Flood, Erin V. Rodgers
Antioch University Dissertations & Theses
Climate change in the northeastern United States currently and in future decadal predictions is characterized by warmer average temperatures and more frequent and intense storm events. Many aquatic organisms that thrive below a certain temperature threshold, such as brook trout, are being pushed towards their upper thermal limits, ultimately lowering their probability of survival and resilience to disturbance. In late-August and early-September 2011, Hurricane Irene and Tropical Storm Lee created an extended flood in the Delaware Water Gap region of Pennsylvania and New Jersey, as well as much of the northeast. This dissertation examines the effects of this flood on …
Assessing Suicide Risk Scores As A Predictor Of Suicidal Behaviors In A Correctional Psychiatric Facility, Janice Rice
Assessing Suicide Risk Scores As A Predictor Of Suicidal Behaviors In A Correctional Psychiatric Facility, Janice Rice
Antioch University Dissertations & Theses
This study evaluated suicide risk assessments in a correctional psychiatric setting. It considered whether clinicians’ judgment of suicide risk predicted future suicidal behaviors in seriously mentally ill prisoners. Data analysis did not show that higher suicide risk scores predicted more suicidal behaviors, nor did it show that suicide risk scores differentiated multiple attempters, or those who went on to attempt suicide or self-harm two or more times in the three years following the assessment. Study data did, however show that suicide risk scores significantly differentiated those who went on to attempt suicide or self-harm at least once in the three …
Population Differentiation And Habitat Selection Of A Montane Red Fox Population In The Greater Yellowstone Ecosystem, Patrick Cross
Population Differentiation And Habitat Selection Of A Montane Red Fox Population In The Greater Yellowstone Ecosystem, Patrick Cross
Graduate Student Theses, Dissertations, & Professional Papers
Montane red fox (Vulpes vulpes) populations across the western United States are genetically and morphologically distinct from foxes at lower elevations. These montane populations also share a preference for subalpine forest habitats. One hypothesis is that they stem from boreal forest-associated ancestors that expanded during the Pleistocene when boreal forests extended farther south than they do today. Forest habitat selection may therefore aid the persistence of native populations surrounded by non-native conspecifics. Alternatively, this behavior may be an avoidance mechanism in response to competition with larger coyotes (Canis latrans), or a product of the fox's natural adaptability. The red fox …
An Assessment Of South China Tiger Reintroduction Potential In Hupingshan And Houhe National Nature Reserves, China, Yiyuan Qin, Philip J. Nyhus, Courtney L. Larson, Charles J.W. Carroll, Jeff Muntifering, Thomas D. Dahmer, Lu Jun, Ronald L. Tilson
An Assessment Of South China Tiger Reintroduction Potential In Hupingshan And Houhe National Nature Reserves, China, Yiyuan Qin, Philip J. Nyhus, Courtney L. Larson, Charles J.W. Carroll, Jeff Muntifering, Thomas D. Dahmer, Lu Jun, Ronald L. Tilson
Philip J. Nyhus
Human-caused biodiversity loss is a global problem, large carnivores are particularly threatened, and the tiger (Panthera tigris) is among the world’s most endangered large carnivores. The South China tiger (Panthera tigris amoyensis) is the most critically endangered tiger subspecies and is considered functionally extinct in the wild. The government of China has expressed its intent to reintroduce a small population of South China tigers into a portion of their historic range as part of a larger goal to recover wild tiger populations in China. This would be the world’s first major tiger reintroduction program. A free-ranging population of 15–20 tigers …
Paul Farmer: Structural Violence And The Embodiment Of Inequality, Fernando De Maio
Paul Farmer: Structural Violence And The Embodiment Of Inequality, Fernando De Maio
Fernando De Maio
No abstract provided.