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 20 of 193 for “"global change"”.
-
Food demand and supply under global change
… local level, but on the planetary-scale causing global change. Besides industrialization, agriculture is a major driver of global change. This change in turn impairs the agriculture sector, reducing crop yields namely due to soil degradation, water scarcity, and climate change. However, this is a …
-
The Effects of Global Change on Avian Biodiversity
… from many concurrent and interacting forms of change. My research uses various long-term monitoring datasets to understand and anticipate these changes. First, I quantified differences in reporting rates across eBird and the North American Breeding Bird Survey (BBS) and assessed the sources of …
-
Global change effects on ant-mediated seed dispersal
… However, the consequences of human-caused global change factors, such as habitat fragmentation and climate change, for the future of these mutualisms are not fully understood. My dissertation consists of five chapters that investigated the effects of habitat fragmentation and climate change …
-
Reversibility of Sea Ice and Climate under Global Change
… model of sea ice and numerical simulation with a global dynamic-thermodynamic sea ice model that traces first-year and multiyear, we show that the sea ice mean state, variability, and sensitivity to forcing may be related to sea ice age. Ice age observations may thus offer insights into Arctic sea …
-
Analytical Methods and Devices for Bioenergy and Global Change Science
Human activity is driving global change. Carbon dioxide emissions from fossil fuel combustion results in global effects including increases in temperatures as well as ocean acidification. Further, human-induced global change extends beyond carbon dioxide to pollution including microplastics. It is …
-
Small islands and global action: Coming of age in global change
… on outcomes: Law of the Sea and Climate Change. The role SIDS played in the negotiations for each case was explored through analysis of relevant documents and interviews with diplomatic and resource persons from a selection of participating SIDS. Results strongly suggest that external …
-
Predicting phytoplankton community dynamics: understanding water quality responses to global change
… undergoing unprecedented alterations due to global change. In particular, many freshwater phytoplankton communities are experiencing multiple global change stressors, altering phytoplankton community composition, biomass, and spatial distribution. I used multiple approaches to characterize …
-
Response of the Texas coast to global change: Geologic versus historic timescales
The response of coastal systems to global change is currently not well understood. To understand current patterns and predict future trends, we establish a geologic record of coastal change along the Gulf of Mexico coast. A study examining the natural versus anthropogenic mechanisms of erosion …
-
Floods in the Niger River Basin in the face of global change
… on four questions regarding (1) features of the change in flood risk, (2) reasons for the change in the flood regime, (3) expected changes of the flood regime given climate and land use changes, and (4) recommendations from previous analysis for reducing the flood risk in the NRB. The question …
-
Integrated modelling of Global Change impacts in the German Elbe River Basin
… this study is to investigate the environmental change in the German part of the Elbe river basin, whereby the focus is on two water related problems: having too little water and having water of poor quality. The Elbe region is representative of humid to semi-humid landscapes in central Europe, …
-
Impacts of ocean acidification and other (global change) stressors on marine invertebrates
… to intrinsic stressors for marine organisms. Global climate change and human activity are already affecting this aquatic environment and are expected to intensify over the next decades. These diverse changes include a rise in global temperature and a decrease in ocean pH. More carbon dioxide …
-
Influence of leaf traits, hydrodynamics and global change on seagrass-grazer interactions
… known that seagrasses are living under local and global threats, and consequently, there is a pressing need to include the global change factors (eutrophication, acidification and warming) into the current experimental approaches, in order to forecast the future responses of this fundamental …
-
Local impacts of global change: shifting range limits, advancing phenology, and communicating research
… two generalizable biological impacts of climate change: first, species are shifting their distributions (both pole-ward in latitude and up in elevation), and second, species are advancing their spring phenology. Climate change is having these effects because climate controls both where species …
-
BIOMINERALIZATION AND GLOBAL CHANGE: BIOTIC RESPONSE TO THE GONDWANAN GLACIATION AND SUBSEQUENT CLIMATE WARMING
… has been the theatre of dramatic climate changes. Starting from greenhouse climatic conditions, this time-interval witnessed the transition to icehouse conditions in the late Visean, with the onset of the Late Palaeozoic Ice Age, one of the major glacial events occurred in the Phanerozoic. …
-
Exploring the potential impacts of global change on the woody component of of South African savannas
Land cover change, elevated CO2 and associated climate change are driving changes in ecosystem structure and function across the world. These changes are best described and understood in northern hemisphere temperate systems. Studies, models and reports from these regions are therefore often used …
-
The political economy of English textile manufacturers in an era of national and global change, 1688-1722;
… and how they interacted with and reshaped the global economy through those combined understandings. Each one of these aspects is inseparable from both the others and its own context: respectively methods of production, economic development, national structures and government, and global trade …
-
Investigating Causal Relationships between Global Change and Insect Interaction Networks: Insights into Dietary Specialization, Interaction Diversity, and Disturbances
… over the past century have driven accelerated global change, including dramatic losses of biodiversity. In this dissertation, I investigated causal relationships between global change and diversity of insect interaction networks through quantifying effects of biotic and abiotic gradients on …
-
The impact of land-use and global change on water-related agro-ecosystem services in the midwest US
… to continue to dramatically alter both the global landscape through the conversion of natural ecosystems into agriculture, and the atmosphere through the combustion of biomass and fossil fuels to meet the need for food and energy. Associated with these land use and global changes are major …
Page 1 of 10