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 12 of 12 for “"mixed forests"”.
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Tree community assembly and biogeochemical processes along an elevational gradient in western Panama
Tropical montane forests (TMF) are unique ecosystems with remarkable contributions to global diversity and C cycle regulation. Understanding factors responsible of TMF dynamics are critical to predicting their plant community response to global change. Elevational and environmental gradients are …
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Assessment of the impacts of climate change, land cover transition, and internal climate variability on the hydrology of a forested watershed
… watershed with coniferous, deciduous and mixed trees and numerous small lakes. A semi-distributed hydrological model, based on the Raven hydrological framework, is calibrated and validated using ground-based observations for 1981-2001 and 2002-2011, respectively. Eight downscaled General …
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A multi-temporal image analysis of habitat modification in the Coastal Watershed, NH
… were less likely to be found in deciduous forests than in either coniferous or mixed forests. The maps and methods designed in this research are useful for fragmentation and invasive species management.</p>
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Diversity and Ecology of Mycorrhizal Fungi Associated With Oak Seedlings in the Appalachian Mountains
… Q. prinus) was estimated at two sites in mature mixed forests in the southern Appalachian mountains. Late – stage fungi were well represented. Total richness was 73 types, with 42 types having a frequency of only one. Thelephoroid / tomentelloid, russuloid, and cortinarioid groups were the …
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Estimating forest attributes using laser scanning data and dual-band, single-pass interferometric aperture radar to improve forest management
… ascertain whether leaf area index in temperate mixed forests is best estimated using multiple-return airborne laser scanning (lidar) data or dual-band, single-pass interferometric synthetic aperture radar data (from GeoSAR) alone or both in combination (Chapter 4). In situ measurements of LAI, …
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Hierarchical summer habitat selection by the North American porcupine in western Montana
… porcupines selected for habitats dominated by mixed forests, pasture, wooded wetlands, and herbaceous wetlands. At the third order the top model showed avoidance of habitats that were further from permanent water sources, while it showed selection for habitats that were dominated by wooded and …
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Hierarchical summer habitat selection by the North American porcupine in western Montana
… porcupines selected for habitats dominated by mixed forests, pasture, wooded wetlands, and herbaceous wetlands. At the third order the top model showed avoidance of habitats that were further from permanent water sources, while it showed selection for habitats that were dominated by wooded and …
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Potential impacts of climate change and land-use change on hydrological drought in the Western Cape (South Africa)
… relevant land-use scenarios are the expansion of mixed forests (FrLand), the restoration of grassland (GrLand), the restoration of shrubland (SrLand), and the expansion of cropland (CrLand). The model evaluation shows good agreement between the simulated and observed monthly streamflow at …
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Impacts of Elevated Carbon Dioxide and Tropospheric Ozone on the Growth and Productivity of Trees
"Forests are an integral part of the global carbon cycle. Any change in their capacity to assimilate carbon through photosynthesis has significant implications for global climate change in the 21st Century. The concentrations of two rising greenhouse gases, carbon dioxide ([CO2]) and tropospheric …
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Dispersión y predación de semillas por la fauna : implicaciones en la regeneración forestal de bosques templados
… seeds (mostly acorns and beechnuts) in temperate mixed forests. The use of motion-detection digital video cameras allowed us to know what animal species were involved in the removal and consumption of seeds. Wood mice (Apodemus sylvaticus L) were the main acorn removers, even from tree branches. …