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 18 of 18 for “"forest recovery"”.
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Riparian Forest Recovery Following a Catastrophic Flood on the Blanco River, Texas
No abstract prepared.
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Forest recovery trends following an unprecedented mountain pine beetle outbreak in the southern Rocky Mountains
… the structure and composition of lodgepole pine forests will look like as they recover. I used Forest Inventory and Analysis data collected by the US Department of Agriculture Forest Service, together with hierarchical cluster analysis, to separate 626 subplots into unique forest type groups …
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Three essays on Brazil's deforestation control policies and their potential effects: Conflicts, Compliance, and Secondary forest recovery
Brazil reduced its annual deforested area from 27772 km2 to 4571 km2 from 2004 to 2012. This phenomenal achievement resulted from multiple government initiatives, most notably the Action Plan for the Prevention and Control of Deforestation in the Legal Amazon (PPCDAm). However, these ambitious …
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Trends in Forest Recovery After Stand-Replacing Disturbance: A Spatiotemporal Evaluation of Productivity in Southeastern Pine Forests
… United States is one of the most productive forestry regions in the world, encompassing approximately 100 million ha of forest land, about 87% of which is privately owned. Any alteration in this region's duration or rate of forest recovery has consequential economic and ecological …
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The role of life history traits for coexistence and forest recovery after disturbance – a modelling perspective. Towards a better understanding of species-rich forests
Tropical forests are well known for their exceptional species richness – high diversity of plant species constitutes the basis for an equivalently rich fauna. An astonishing variety of plant life strategies has evolved, manifesting itself also in different compositions of life history traits in …
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The effects of forest disturbance and fragmentation on fruit-feeding butterflies in Trinidad
… the use of tropical butterflies as indicators of forest disturbance, fragmentation and forest recovery. The disturbance level of habitats was found to be characterised by the rate of the fraction of species accumulated, with species in undisturbed habitats accumulating more slowly. Undisturbed …
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Tree functional diversity affects litter decomposition and arthropod community composition in a tropical forest
The crucial role of tropical forests in the global carbon balance is determined by tree growth and the rapid turnover of organic material. Land-use change and forest recovery from disturbance alters species- and functional diversity, which in turn can modify decomposition processes and affect …
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Revisiting patterns and processes of forest cover change in the tropics: a case study from southeast Mexico
… has been made in detecting rates of tropical deforestation, yet the relationship between visible patterns of forest change, multi-scalar human processes and the underlying drivers associated with them is poorly understood. Building on satellite imagery, a household livelihood survey and …
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Mapping Elaeagnus Umbellata on Coal Surface Mines using Multitemporal Landsat Imagery
… on mined lands' vegetative cover and ecosystem recovery status is necessary for implementation of effective environmental management practices. The invasive autumn olive (Elaeagnus umbellata) is abundant on former coal surface mines, often outcompeting native trees due to its faster growth rate. …
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The Influence of Forest Structure on Sumatran Orangutan Nesting and Densities in the Lowland Dipterocarp Forests of North Sumatra
… tree and why build the nest in that part of the forest and not another? Nest and forest structure data were recorded from transects conducted at two sites in North Sumatra; Sikundur (a naturally recovered site) and Sei Betung (reforested site). Selection patterns for tree and forest structure …
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Spatio-temporal patterns of forest disturbance in western North America: implications for forest resilience
Globally, forest disturbance activity is changing in response to changing climate. As disturbance regimes change, concerns have been raised that the mechanisms of forest resilience (i.e., the capacity of forests to tolerate disturbance) may begin to break down. To successfully monitor, forecast, …
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Ecohydrology and self-organization of black ash wetlands
… concern over possible ecosystem state shifts in forested wetlands (i.e., to wetter, more herbaceous systems) and loss of forest function, calling for informed landscape-scale management strategies. In this dissertation, I use black ash wetlands as a model system to understand complex …
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Post-fire carbon, fuels, and vegetation dynamics in wet temperate forests: implications for future fire and management in the Pacific Northwest
… fire is infrequent, including wet temperate forests west of the Cascade Range crest in Washington and northern Oregon, USA (“northwestern Cascadia”). In this dissertation, I combined empirical and simulation insights from recent fires in northwestern Cascadia to address research priorities …
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Development of image analysis techniques to enable low-cost tropical rain forest monitoring
Tropical rain forests are important carbon stores and harbours of biodiversity but are being cleared at an unprecedented rate. There is an estimated 2 billion hectares of degraded forest globally, which retains a large proportion of its biodiversity. Restoration of these lands is needed to meet …
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Establishment, Mortality and Growth of Recruits in an Experimentally Disturbed Piñon-Juniper Woodland
… extreme drought. There is a question whether forests can fully recover from these events to their previous state, or whether they are succeeded by more arid woodlands, such as juniper savanna. To better understand the process of vegetation recovery from disturbance, we imposed an experimental …
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Carbon Pools and Fluxes as an Indicator of Riparian Restoration
Riparian forests are integral components of the landscape. The inherent biogeochemical processes that occur in such forests provide numerous benefits to wildlife and society. Maintaining good water quality is a major benefit from riparian forests and therefore, the maintenance, creation, or …
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Biodiversity-ecosystem service relationships in degraded and recovering ecosystems.
… by non-native plant species and (2) tropical forests affected by human exploitation and disturbance. Specifically this thesis aimed to answer the questions: 1. What effect do non-native plant invasions have on aboveground carbon storage, belowground carbon storage, carbon sequestration, water …