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 15 of 15 for “"Protected species"”.
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Characterization of an aryl hydrocarbon receptor from a cetacean : an approach for assessing contaminant susceptibility in protected species
… and function are known to contribute to species-specific differences in susceptibility to HAH toxicity, and targets for HAH toxicity are related to the tissue-specific expression of AHR. The goal of these studies was to ascertain the potential for HAH effects in cetaceans by …
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The Effects of Prescribed Fire on Bat Activity in the Ozark National Scenic Riverways
… fully understood and impacts vary depending on species life history and habitat requirements. This study was conducted to further the understanding of how bat communities, with emphasis on federally protected species, may be affected by the fire management plan within the Ozark National Scenic …
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Conservation Genetics and Mark-Recapture Monitoring of the Rare Pigeon Mountain Salamander (Plethodon petraeus) within a Highly Restricted Range
<p>Globally, amphibian species are experiencing declines at an alarming rate largely due to habitat loss, disease and climate change. Species with limited ranges are at an elevated risk of a significant decline in population numbers and extinction because of the inability to avoid and recover from …
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New insights into the summer distribution of basking sharks (Cetorhinus maximus) in the northeast Atlantic
… index, most likely through association with prey species. Sea surface temperature (SST) had no significant effect on the distribution of basking sharks. This study provided new insights into the seasonal occurrence of basking sharks on a large scale within the northeast Atlantic. The results …
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Patterns of flow variability: consideration for river regulation and salmon management
… decline throughout most of its range, yet as a protected species legally requires measures to improve populations. This thesis assembled multi-decadal datasets in the form of rod catch data, as a proxy to represent salmon populations. However, analyses provided limited meaningful insight into …
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EVALUATING IMPACT ASSESSMENT IN NON-PROFIT CONSERVATION PROJECTS
… cases conservation projects have successfully protected species and landscapes. However, sometimes things go wrong. Nowhere is this more obvious than in cases of pro-environmental actions which have subsequently been shown to have negative impacts and effects. Conservation projects, arguably …
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The impact of cormorants (Phalacrocorax carbo carbo and Phalacrocorax carbo sinensis) on inland fisheries in the UK
… intake (DFI) of approximately 500 g. They are a protected species under the Wildlife and Countryside Act 1981. In the UK, the number of over-wintering, inland cormorants increased steadily between 1970 and 1987, at a rate of between 5 and 10 % per annum. An increase of 74 % occurred between …
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Effects of added drag on cetaceans : fishing gear entanglement and external tag attachment
… is essential for disentanglement response and protected species management. Experiments with tagged bottlenose dolphins suggest similar responses to added drag: I determined that instrumented animals slow down to avoid additional energetic costs associated with drag from small bio-logging tags, …
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Fishery Interaction Modeling of Cetacean Bycatch in the California Drift Gillnet Fishery to Inform a Dynamic Ocean Management Tool
… drivers that lead to interaction between target species in a fishery and marine mammals is a critical aspect in efforts to reduce bycatch. In the California drift gillnet fishery static management approaches and gear changes have reduced bycatch but neither measure ascertains the underlying …
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Effects and added drag on cetaceans : fishing gear entanglement and external tag
… is essential for disentanglement response and protected species management. Experiments with tagged bottlenose dolphins suggest similar responses to added drag: I determined that instrumented animals slow down to avoid additional energetic costs associated with drag from small bio-logging tags, …
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An innovative portable detector for the live-monitoring of radionuclides in small terrestrial animals
… was then conducted on small rodent and bird species in the Chernobyl Exclusion Zone. Monitoring of internal activity concentrations for small rodents and birds showed a good correlation to results obtained using an alternative verified method (R2 > 0.9 for both 137Cs and 90Sr, N = 10 for each …
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An Interdisciplinary Examination and Assessment of Current Conservation Initiatives for Javan Gibbons (Hylobates moloch)
Protection of an Endangered species in its natural habitat should be at the forefront of conservation priorities, and necessary measures should be taken to ensure conservation programs use a holistic approach when developing initiatives aimed at conserving species in the wild. The research …
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An Ecotoxicological Recovery Assessment of the Clinch River Following Coal Industry-related Disturbances in Carbo, Virginia (USA): 1967-2002
… the absence of bivalves, including federally protected species of native mussels (Unionoidea), from sites influenced by CRP effluent. Modifications in CRP effluent during 1987 and 1993 drastically reduced Cu levels and warranted the present study, which assessed long-term biological recovery …
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Integrated coastal and ocean management of areas hosting marine mammals a case study in the strait of Gibraltar
… overlapping intense maritime traffic and highly protected species of cetaceans could generate conservational or economic conflict. The current publication applies an integrated management approach in order to improve knowledge of cetaceans, maritime activities, and Whale Watching (WW), as well as …