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 24 for “"forest regeneration"”.
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Economic strategies for forest regeneration
… study derives a theoretical basis for planning forest regeneration operations and forest regeneration research projects. The purpose of such planning, is to facilitate effective implementation and monitoring of projects so that the forest investment goals of the finn may most easily be met. …
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Effects of Forest Regeneration Methods on Salamander Populations in Central Appalachia
In forested ecosystems, salamanders occupy important ecological roles as predator, prey and as potential regulators of ecological processes. The effects of forest management, particularly clearcut harvesting, on salamanders have been well documented; removal of overstory trees negatively affects …
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Lemurs as protectors of the forest: Red-collared brown lemur seed dispersal, forest regeneration, and local livelihoods in the littoral forest fragments of southeastern Madagascar
… socio-economic development. On the other hand, forest protection often restricts the use of natural resources, thus interfering with traditional livelihoods and local economics. These negative effects can lead to antagonistic attitudes towards the protected area, which can undermine conservation …
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Fruit chemical traits shape bat nutritional ecology: from basic science to applications
… insights from basic chemical ecology to inform forest regeneration strategies (Chapter 5). The studies were conducted in northeastern Costa Rica at La Selva Biological Station. Chapter Two examines the variability and associations between nutrients and secondary metabolites within ripe Piper …
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Island Biogeography and Restoration: The Role of Living Fence Islands as Regeneration Foci in the Rehabilitation of Degraded Lands in Honduras
… non-labor intensive technique for facilitating forest regeneration.
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Remote Sensing Characterization of Ecosystem Structure and Functional Types to Inform on Biodiversity Conservation in the Lowland Chocó Rainforest
… that increased degradation of tropical forest biodiversity due to human activity results in in measurable changes in ecosystem processes that can be detected using remote sensing technologies. Throughout this dissertation, testing of aspects of this hypothesis involve comparing areas …
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Natural regeneration and ecological succession in Pinus kesiya watershed plantations in northern Thailand : implications on plantation management
… in Thailand began in the 1960s by the Royal Forest Department. The aim was to reforest abandoned swidden areas and grasslands in order to reduce erosion and to produce timber and fuel wood. Today there are about 150, 000 ha of P. kesiya plantations in northern Thailand. Most of these …
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The impact of edge-effects on aerial insectivorous bat assemblages in the Amazon
… on edge-effects, particularly in tropical forests which suffer the highest rates of deforestation. This study aims to quantify the magnitude and extent of edge effects on Amazonian aerial-insectivorous bats by relying on a suite of theoretical models previously applied to other taxa. …
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Decision Support for Operational Plantation Forest Inventories through Auxiliary Information and Simulation
Informed forest management requires accurate, up-to-date information. Ground-based forest inventory is commonly conducted to generate estimates of forest characteristics with a predetermined level of statistical confidence. As the importance of monitoring forest resources has increased, budgetary …
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Landscape Influences on Spatial Patterns of White-tailed Deer Herbivory and Condition Indices in the Central Appalachian Mountains
… have had an increasingly negative effect on forest biodiversity and a growing influence on forest succession. In Virginia, the combination of these factors has prompted establishment of deer population management goals and policies designed to support conservation of biodiversity, forest …
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Evaluating the ecosystem services and disservices provided by Mediterranean woodlands
Forest regeneration and tree planting have been promoted as means to mitigate climate change through carbon fixation, and as options to restore biodiversity to exploited landscapes. However, the regulating services that forests provide are not limited to the carbon cycle, and the effects of forest …
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Roots of change : front line workers and forest policy reform in West Bengal
This dissertation examines the case of forest policy reform in the Indian state of West Bengal. In 1989, the Government of West Bengal adopted a policy of involving local communities in the protection and management of state owned forest lands, generally called Joint Forest Management (JFM). …
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Spatio-temporal Variability in Rainfall and Wet-canopy Evaporation within a Small Catchment Recovering from Selective Tropical Forestry.
Within tropical rainforest environments, rainfall pattern and canopy structure regulates the partitioning of water into wet-canopy evaporation and sub-canopy rainfall. These interrelated process then moderate atmospheric water vapour, plant water availability, runoff pathways and soil erosion. …
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Forest and woodland regeneration dynamics and persistence in the human- modified landscape of Greater Gombe Ecosystem, Tanzania
AbstractThe clearing of tropical forests and woodlands for human use puts many species at risk of extinction. Vast areas of forests and woodlands have been converted to fragmented patches located within mosaics of different land uses (e.g., agricultural lands and human settlements). Some …
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Analysis of the "nurse-tree effect" of exotic shelter trees on the growth of the indigenous Podocarpus falcatus in an Ethiopian montane forest
Ethiopian forests disappear with a rate of 1.1% per year due to the high demand of firewood and timber. To protect the remaining parts of the forests, exotic tree plantations were established 60 years ago. But there are considerable concerns regarding exotic plantations: they have the reputation to …
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An environmental history : William Cameron Park, Waco, Texas.
… that release of the pastures led to differential regeneration of forest cover, first in Juniperus species and then with deciduous species. This release event took place eighty to ninety years ago, coinciding almost exactly with the dedication of Cameron Park in May 1910. Additionally, regeneration …
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Structure and natural regeneration in iberian pine forests: implications for management = Estructura y regeneración de los pinares ibéricos: implicaciones para la gestión
… En este contexto los propietarios y gestores forestales necesitan herramientas con base científica para gestionar de los bosques de manera que se consigan alcanzar múltiples objetivos a distintas escalas espaciales y temporales. Esta tesis pretende analizar el impacto que tiene la gestión …
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Linking mechanism to pattern in community assembly: Ant-mediated seed dispersal in neotropical pioneer tree species
Dispersal is a fundamental process that affects all aspects of an organism’s biology including its distribution, genetic structure, demography, and reproduction. Ant-mediated seed dispersal has evolved multiple times in many biogeographical locations. Most research in this area has focused on …
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Macro to Micro Legacies of Landuse at the Calhoun Critical Zone Observatory
… successional progression from pre-disturbance forested landcover into deforested agricultural management and finally into secondary old-field mixed pine forests which typify the post-agricultural landscape of the Southeastern US. </p><p>In the first chapter it was observed that most of the …
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