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 13 of 13 for “"Species Monitoring"”.
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Distribution of Invasive Plant Species on Debris Cones at Mount Rainier National Park
… the landscape is needed to improve invasive species monitoring for National Park Service management. This study investigates how invasive plant populations in Stevens Canyon are utilizing the debris cone disturbances and associated geomorphic processes to facilitate movement within the park. …
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Modeling Detection and Density Using Distance Sampling for Three Priority Grassland Bird Species in Texas - Northern Bobwhite (Colinus virginianus), Eastern Meadowlark (Sturnella magna), and Painted Bunting (Passerina ciris)
In Texas, three priority grassland species have experienced declines due to the loss of native grasslands. These species are the Northern Bobwhite (Colinus virginianus), Eastern Meadowlark (Sturnella magna), and Painted Bunting (Passerina ciris). Due to this, accurate density and abundance …
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Biodiversity monitoring using environmental DNA: Can it detect all fish species in a waterbody and is it cost effective for routine monitoring?
The challenges associated with environmental monitoring such as the impact on the environment and the financial costs are problems we face when trying to conserve freshwater systems around the world. The need for precise and accurate results that are cost effective is important so that we can …
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Effects of Plant Invasions on Birds Breeding In Desert Grasslands
… quality of habitat for many grassland-associated species, including grassland birds, which have declined more rapidly across North America than any other group of birds. Along gradients in cover of woody plants and nonnative grasses in semidesert grasslands of southeastern Arizona, we evaluated …
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Optical Spectroscopy for Process Monitoring of 238Pu Production
… accountancy of 238Pu in its production, in situ species monitoring techniques must be developed. The efficacy of optical spectroscopic techniques have been studied to improve process monitoring capabilities of plutonium production. Raman spectroscopy and laser-induced breakdown spectroscopy …
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Peatland Afforestation: Effects and Restoration
… of comparative global assessments, long-term species monitoring, and large-scale experimental restoration trials, the research provides new insights into the drivers of biodiversity change and the recovery potential of degraded peatlands.<br/>A global comparison of bird assemblages across …
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Effects of prescribed fire on breeding forest songbird abundances in central and Southern Illinois
… effects of prescribed fire on the structure and species composition of the trees, it is imperative to also understand how these burns impact wildlife that reside in the forest, including breeding bird species. Monitoring the effects of prescribed fire helps to inform managers’ decisions regarding …
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The scientific and sociocultural value of citizen science
… generate enough data for fine-scale biological monitoring and, through community engagement, promote the democratic generation and dissemination of knowledge. However, despite their potential within both the scientific and sociocultural realms, the regional scale impacts of citizen science …
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Environmental Change Based on Earth Observation and Field Data -- A Local Study in the Sahel Zone of Mali and Senegal
… and (4) a widespread dispersion of robust species, which are resilient to anthropogenic and climatic stress. In spite of the overall positive vegetation trends, a massive species impoverishment was disclosed by interviews with village elders and long term species monitoring. Apart from few …
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The spatial ecology and conservation of an important game bird in Ireland: the Eurasian woodcock
A wide range of species are targeted by human hunters, including those with uncertain or poor conservation status. However, the direct and indirect effects of this exploitation can be complex and are often poorly understood. The Eurasian woodcock (hereon woodcock) is a largely migratory …
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The Mzingazi gauging weir and its effects on the fish and macrocrustacean communities of Lake Mzingazi
… fishway was aimed at allowing euryhaline fish species to migrate out to sea to spawn and back to the lake to complete their life cycle since Lake Mzingazi historically served as an important nursery habitat for juveniles of a number of euryhaline fish species. Monitoring of the fishway was …
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The history, ecology, and reintroduction of the chequered skipper butterfly Carterocephalus palaemon in England
Over 41% of global insect species have declined over the past decade, compared with 22% of vertebrate species. For Lepidoptera, 53% of species are declining and 34% are threatened globally. Since 1976, 80% of butterflies species have declined in either abundance or occurrence or both in the United …
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Emergence Phenology and Nematode Associates of the Woodwasp, Sirex nigricornis F. (Hymenoptera: Siricidae), in Arkansas and Mississippi forests
… of the southeastern United States. Effective monitoring tools are necessary to track the spread and establishment of S. noctilio. Deladenus siricidicola Bedding (Tylenchida: Neotylenchidae) is a parasitic nematode associated with S. noctilio in its native range and has been accidentally …