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Full-Text Articles in Physical Sciences and Mathematics
Spatial And Temporal Variation In Mangrove Distribution (1950-2014) In Tampa, Florida Usa, Carolyn Cheatham Rhodes
Spatial And Temporal Variation In Mangrove Distribution (1950-2014) In Tampa, Florida Usa, Carolyn Cheatham Rhodes
USF Tampa Graduate Theses and Dissertations
I carried out an observational study of historic high resolution aerial imagery spanning six decades (1950-2014) to identify recent and historic spatial extent of mangrove forests, within the municipal boundaries of the City of Tampa, Florida USA. My objectives were to map mangrove distribution and spatial extent and any change or patterns of change discernable. I observed variable patterns of change and rates of expansion varied between sites spatially as well as within sites between time intervals. I found notable changes in mangrove extent in the Tampa from historic and modern aerial imagery for the ~64-year period between 1950 and …
The Relationship Between Wildfire Dynamics And Soil Carbon In Boreal Forests Of Alaska: Forest Management For Emissions Reduction In A Changing Climate, James D. Heaster
The Relationship Between Wildfire Dynamics And Soil Carbon In Boreal Forests Of Alaska: Forest Management For Emissions Reduction In A Changing Climate, James D. Heaster
Master's Projects and Capstones
The boreal region of Alaska has vast forests spanning hundreds of thousands of square kilometers in the central portion of the state that is prone to large stand replacing summer wildfires. The region stores considerable quantities of terrestrial carbon sequestered in soil horizons down to 1 meter in depth that are strongly influenced by a combination of climate change, permafrost dynamics, vegetative composition, and fire regimes. Data and literature establish that the boreal region of Alaska (and the rest of the Arctic) has been steadily warming at a rate nearly double that of lower latitudes. This warming has resulted in …
Water-Energy Sector Collaboration In The United States: Benefits, Barriers, And Climate-Change Implications, Cassandra J. Osterhoudt
Water-Energy Sector Collaboration In The United States: Benefits, Barriers, And Climate-Change Implications, Cassandra J. Osterhoudt
International Development, Community and Environment (IDCE)
The purpose of this report is to examine the impact of the water-energy nexus in the United States, and identify opportunities for increased collaboration between water and energy utilities. Through reviewing the regulatory history of both sectors, I explore how regulations on utilities align with the Porter Hypothesis, and the impacts the water-energy nexus will have moving forward, including under climate-change scenarios. The extent of collaboration between sectors has been relatively limited to states with progressive energy and water efficiency policies. This report identifies existing barriers and benefits to collaboration, and utilizes two case studies; California and Massachusetts. Results are …
Sea Change In Management Strategies: The Implications Of Global Climate Change On Policy Conceptions Of And Responses To Invasive Marine Species, Griffin J. Hunt
Sea Change In Management Strategies: The Implications Of Global Climate Change On Policy Conceptions Of And Responses To Invasive Marine Species, Griffin J. Hunt
Senior Theses and Projects
The dispersal of the invasive red lionfish (Pterois volitans) across the Caribbean–Atlantic reverberates throughout the region’s public policy, conservation efforts, and economic concerns. Invasions by non–native species generally exhibit a wide range of negative effects on recipient ecosystems, and the lionfish case is no exception. Of central concern, this invasion has occurred at a rate, scale, and magnitude that precludes traditional management efforts. This paper assesses the diverse anthropogenic factors that contributed to the establishment of lionfish within the Caribbean–Atlantic, as well as the reasons for the species’ subsequent rapid dispersal throughout the region. This work investigates how …
Influence Of Internal Variability On Population Exposure To Hydroclimatic Changes, Justin S. Mankin, Daniel Viviroli, Mesfin Mekonnen, Arjen Y. Hoekstra, Radley M. Horton, Jason E. Smerdon, Noah S. Diffenbaugh
Influence Of Internal Variability On Population Exposure To Hydroclimatic Changes, Justin S. Mankin, Daniel Viviroli, Mesfin Mekonnen, Arjen Y. Hoekstra, Radley M. Horton, Jason E. Smerdon, Noah S. Diffenbaugh
Daugherty Water for Food Global Institute: Faculty Publications
Future freshwater supply, human water demand, and people’s exposure to water stress are subject to multiple sources of uncertainty, including unknown future pathways of fossil fuel and water consumption, and ‘irreducible’ uncertainty arising from internal climate system variability. Such internal variability can conceal forced hydroclimatic changes on multi-decadal timescales and near-continental spatial-scales. Using three projections of population growth, a large ensemble from a single Earth system model, and assuming stationary per capita water consumption, we quantify the likelihoods of future population exposure to increased hydroclimatic deficits, which we define as the average duration and magnitude by which evapotranspiration exceeds precipitation …
Temporal Migration Shifts In The Aransas-Wood Buffalo Population Of Whooping Cranes (Grus Americana) Across North America, Joel G. Jorgensen, Mary Bomberger Brown
Temporal Migration Shifts In The Aransas-Wood Buffalo Population Of Whooping Cranes (Grus Americana) Across North America, Joel G. Jorgensen, Mary Bomberger Brown
School of Natural Resources: Faculty Publications
Birds are altering the phenology of critical life history events, including migration, in response to the effects of global climate change. Whooping Cranes (Grus americana) are one of the most critically endangered birds in the world. Their remnant population, referred to as the Aransas-Wood Buffalo Population, numbers between 300-400 individuals and migrates between the U.S. Gulf of Mexico coast and north-central Canada twice each year. Previous analyses suggested Whooping Crane migration was temporally constant in spring and fall. New analyses of observations spanning 1942-2016 show Whooping Crane migration is now occurring earlier in spring by approximately 22 days …
Information Technology Approaches To Forest Management, Mary Snow, Richard Snow
Information Technology Approaches To Forest Management, Mary Snow, Richard Snow
Publications
The majority of the world’s forests occur where there is a dry season long enough to affect a seasonal change in the forest community. The seasonal forest may include evergreen, semi-deciduous, deciduous trees, or some combination of these. Local differences in soil or other site characteristics often determine which community persists. Since the seasonal forests exist where there is seasonal precipitation, the character of the forest is closely associated with the length of the rainy season. As the length of the rainy season decreases, the density of the canopy decreases. If the global climate system warms and prolonged drought gives …