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 32 for “"tropical rainforest"”.
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Development of efficient experimental strategies for the cryopreservation of problematic tropical rain forest tree germplasm
The rapid loss of the world’s tropical rainforest has serious consequences for mankind and global biodiversity. The conservation and sustainable management of tropical rainforests is helped greatly by the longterm storage and predictable availability of germplasm. Cryopreservation is one of the …
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Cobertura da terra em propriedades privadas na Amazônia: dinâmica de desmatamento e remanescente florestal
The Amazon Rainforest, the largest remnant of tropical rainforest in the world, was deforested at a rate of 25,000 km² per year in the 1990’s. However, environmental policies and supply chain interventions strongly reduced deforestation rates on the following decade. At COP 21, Brazil committed …
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Near-surface hydrology and hydrochemistry under contrasting land-cover
… to reach streams and the nutrient budgets of a tropical rainforest and a pasture. In addition we studied the links of hydrochemical differences to differences of the relative importance of flowpaths. This study was conducted in the southwestern part of the Brazilian Amazon basin. An intensive …
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Sustainable tourism in protected areas? : an ecological economics case study of the Wet Tropics World Heritage Area
… in North Queensland, Australia. This area of tropical rainforest houses numberous rare and endangered species. It also has experienced rapid growth in tourism in recent years, and tourist numbers are expected to double between the years 1992 and 2001. The budget for management has recently …
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Sustainable tourism in protected areas? : an ecological economics case study of the Wet Tropics World Heritage Area
… in North Queensland, Australia. This area of tropical rainforest houses numberous rare and endangered species. It also has experienced rapid growth in tourism in recent years, and tourist numbers are expected to double between the years 1992 and 2001. The budget for management has recently …
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Migrants and the Brazilian boom-city: Manaus from 1850 to 1940
… situated in the heart of the world’s largest tropical rainforest, continued to expand. Over the course of the second half of the nineteenth century and first half of the twentieth century, migrants crucially strengthened the links between Manaus and both the Brazilian Northeast and the huge …
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Diversity and ecology of anurans at selected streams in Taman Negara Johor Endau Rompin, Malaysia
… centers of biodiversity. It has a lot of tropical rainforest and one of the examples is Taman Negara Johor Endau Rompin (TNJER). TNJER has been recognized as one of the special areas since the early 1950s due to the uniqueness of its forest, the richness of its biodiversity and the …
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Phycoremediation using botryococcus sp. as nutrients removal in organic wastewaters coupled with hydrocarbon production
… The Botryococcus sp. locally isolated from the tropical rainforest. The optimisation study proved that the Botryococcus sp. grew well in the temperature of 23-33°C, the light intensity of 243 μmol m-2s-1 and 24 hours of light exposure. In fact, this Botryococcus sp. much more tolerated with the …
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Trace Greenhouse Gas Fluxes in Upland Forests
… stem CH₄ and N₂O fluxes were measured in lowland tropical rainforest in Panama, Central America and temperate woodland in the UK, using chambers installed on the forest floor or strapped to individual stems of two common tree species. Air samples were collected every two to four weeks during 5 …
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Biodiversity, bioprospecting and patents: a case study of traditional knowledge in French Guiana.
… by their vegetation, known as the Amazonian tropical rainforest. French Guiana, a French overseas region, possesses an exceptionally rich biodiversity and wealth of natural resources, shaped by the presence of indigenous peoples through the application of their traditional knowledge. …
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Saturated hydraulic conductivity in the humid tropics : sources of variability, implications for monitoring and effects on near-surface hydrological flow paths
… undergoing land-use change. The decrease of tropical rainforest, which is felled for land clearing and timber production, is countered by increasing areas of tree plantations and secondary forests. These changes are known to affect the regional water cycle as a result of plant-specific water …
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Island Biodiversity and Human Palaeoecology in the Philippines: A zooarchaeological study of Late Quaternary faunas
… conservation. This approach is crucial for a tropical faunal region known for its exceptionally high levels of biodiversity and endemism but that also has a relative paucity of fossil studies. In this regard, the thesis aims to investigate the evolutionary and biogeographic history of these …
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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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Spatiotemporal Variability of CO2, Solar-Induced Fluorescence, And Precipitation Over the Tropical Rainforests
Tropical rainforest ecosystems change forest dynamics during the dry/fire season, transitioning from an atmospheric CO2 sink to a CO2 source. The Amazon basin, Congo basin, and the tropical Indo-Pacific play vital roles in biospheric processes, which contribute to Earth’s atmospheric CO2 …
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Intestinal Parasitic Infection: Prevalence, Risk Factors and Consequences for Child Growth, Iron Status and Development in Rural Ecuador
… was conducted in five rural hamlets located in a tropical rainforest area in northwest Ecuador. The study data were obtained by means of a structured questionnaire, a developmental screening examination, anthropometry, and lab analysis of blood and fecal samples. Data analysis was conducted using …
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The Corticolous Crustose and Microfoliose Lichens of Northeastern Brazil – Diversity, Ecology, and Conservation
… made in a number of 22 localities of Atlantic rainforest, Caatinga and Brejos de Altitudes (caatinga enclaves) in the states of Rio Grande do Norte, Paraiba, Pernambuco, Alagoas, and Sergipe, in northeastern Brazil yielded a total of 450 species, distributed in 110 genera, in 32 families, 12 …
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Retrieval of methane and carbon monoxide using near infrared spectra recorded by SCIAMACHY onboard ENVISAT : Algorithm Development and data analysis
… measurements and model were discovered over tropical rainforest areas. Measured abundances showed persistently higher abundances than those predicted by the model. This led to the conclusion that the tropical regions as methane source have been hitherto underestimated in current emissions …
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Non-CO₂ environmental impacts of transportation fuel use and production
… the largest of which is for the replacement of tropical rainforest with soybean cultivation. This corresponds to -161 gCO₂e/MJ, or -28% and -178% of the lifecycle GHG emissions of fuels derived from soybean and crude oil. 3) Climate impacts from changes in radiative forcing (RF) generated by …
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Western Gorilla Social Structure and Inter-Group Dynamics
… on inter-group social interaction in dense tropical rainforest. However, gorilla groups are known to have extensively overlapping home ranges, show affiliative inter-group interactions and often aggregate at resource hotspots. There is also genetic evidence of kin-biased behaviour between …
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