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 20 of 36 for “"Global Environmental Change"”.
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Effects of morphology, habitat and weather on the movement behaviour of range-expanding butterfly species
… trait enabling species to respond to climate change, particularly in fragmented landscapes, where individuals often need to move longer distances to colonise new areas. It is therefore crucial to understand species’ movement behaviour and how it is affected by environmental variables to plan …
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Fluvial and climatic controls on tropical agriculture and adaptation strategies in data-scarce contexts
Over the past decades, public concern about global environmental change has grown, following the progressive increase in both frequency and intensity of extreme events. Even though the problem is global, it has proved to have very different societal and environmental impacts at local level, further …
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The Cocaine-Wildlife Connection: Crime Convergence in Central America
… the links between illicit activities and global environmental change are poorly understood. To better understand this intertwined threat to biodiversity and security, this research asks: What are the spatiotemporal and species patterns of wildlife and cocaine trafficking in Costa Rica and …
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Between Nowhere and Everywhere: The Challenges of Placing the Intergovernmental Platform on Biodiversity and Ecosystem Services (IPBES)
Global Environmental Assessments (GEAs) have become influential processes in environmental governance, with the objective to gather policy-relevant knowledge on environmental issues for decision-makers. This thesis offers the first ethnographic account of the nascent Intergovernmental Platform on …
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Controls on terrestrial carbon and nutrient cycling in Arctic permafrost environments
… regions are being disproportionately affected by changes induced by climate warming. The direction of global environmental change will largely depend on the response of Arctic ecosystems to positive and negative feedbacks, which has implications for the global climate system and the people that …
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Community Resilience, Disaster Risk Reduction and Climate Change Adaption: Learning with Coastal Communities in Central Vietnam
… disaster risk reduction (DRR) and climate change adaptation (CCA) programs to enhance the resilience of its coastal communities and reduce climate risks. These programs have contributed to significant declines in weather-related human fatalities, but the increases in human injuries and …
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HONEY BEES, BIODIVERSITY AND CLIMATE CHANGE
… factors such as habitat loss, pathogens, climate change, and the genetic risks associated with selective breeding. This thesis explores the genetic and microbial dimensions of honey bee health and productivity within a closed breeding population selected since 2015 for docility, hygienic behavior, …
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Human environment interactions and collaborative adaptive capacity building in a resilience framework
… the International Human Dimensions Programme on Global Environmental Change that humanity needs to develop new strategies to tackle complex anthropogenic issues impacting the global environment and that there should be a focus on human behavior to effect change. Through a collaborative tri-phase …
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Comparing Reef Bioindicators on Benthic Environments off Southeast Florida
A goal of the U.S. Environmental Protection Agency is to develop protocols applicable to coral reefs to distinguish between the effects of local water quality and those associated with regional to global environmental change. One test case is the current-dominated southeast coast of Florida where …
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Experimental litterfall manipulation effects on soil bacterial community structure and soil carbon cycling in a wet tropical forest
Global changes such as increasing atmospheric carbon dioxide (CO2) concentrations or climate change are likely to drive shifts in plant-derived carbon (C) inputs to terrestrial ecosystems via changes in litterfall and plant net primary production (NPP). However, the effects of shifting detrital C …
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Experimental litterfall manipulation effects on soil bacterial community structure and soil carbon cycling in a wet tropical forest
Global changes such as increasing atmospheric carbon dioxide (CO2) concentrations or climate change are likely to drive shifts in plant-derived carbon (C) inputs to terrestrial ecosystems via changes in litterfall and plant net primary production (NPP). However, the effects of shifting detrital C …
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The effects of scale and context-dependency on the outcome of experiments investigating soil carbon dynamics
… we are to predict the future of ecosystems under global environmental change. However, it is often challenging to study complex processes at the ecosystem-scale, due to high natural variability. Microcosm experiments offer a way to study soil processes under controlled conditions but common …
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California in the greenhouse: regional climate policies and the global environment
… scales of decision-making. It considers local-global connections on both the science and the politics of climate change by investigating four main research questions as they pertain to regional climate action: What triggers regional policy action on global climate change? What arguments and …
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Genetics and Ecology of the Invasive Marine Alga, Sargassium Miuticum within Wales: A Multidisciplinary Approach to a Management Problem
… non-native species represents a key component of global environmental change and is now recognized as the second biggest threat to global biodiversity after habitat destruction. Aspects of both the ecology and genetics of the invasive algae, Sargassum muticum from the Welsh coastline were …
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Human Occupation and Changing Environments During the Middle to Later Stone Ages: Soil Micromorphology at the Haua Fteah, Libya
Environmental change has been cited as a key factor in controlling dispersals throughout human evolution. Shifting environments potentially controlled movements of late Middle Stone Age (MSA) and Later Stone Age (LSA) modern human populations during Marine Isotope Stages 5–2 (MIS5–2) both within, …
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Mangroves, fisheries and community livelihoods
… production. Ongoing loss of mangrove extent globally is therefore of societal concern given that communities living near mangroves rely on mangrove-fishing for income and subsistence. Whilst research and conservation efforts have successfully advocated mangrove restoration, and promoted the …
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Assessing annual urban change and its impacts on evapotranspiration
Land Use Land Cover Change (LULCC) is a major component of global environmental change, which could result in huge impacts on biodiversity, water yield and quality, climate, soil condition, food security and human welfare. Of all the LULCC types, urbanization is considered to be the most impactful …
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A study of the dissolution of atmospherically derived trace metals into North Atlantic seawater
… within the laboratory. Key variables were changed to investigate the effect of aerosol source/composition, seawater temperature, pH, dissolved oxygen concentration and organic ligand amendments on aerosol and rainwater trace metal dissolution. Results for aerosol leaching experiments …
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QUANTIFYING THE DISTRIBUTION OF FOREST FUNCTIONAL TYPES AND FOREST LEAF AREA INDEX IN THE ALPS
Land cover change is an important element of global environmental change processes. Most ecosystem processes strongly depend on land cover and its attributes. Mapping land cover, especially in mountain terrain is a difficult and challenging task. Remote sensing is an attractive source of thematic …
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Understanding the role of plant hydraulic traits in ecological processes
… for one third of total primary productivity. Global environmental change is causing novel precipitation patterns, shifts in the timing of rainfall events and an increase of the atmospheric water demand in tropical regions. Such changes pose a threat to the ecosystem services provided by …
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