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 22 for “"anthropogenic pressure"”.
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Conservation genetics and population status of the Flame Chub, Hemitremia Flammea
… groundwater resources that are under increasing anthropogenic pressure.
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Development and validation of spatial distribution models of marine habitats, in support of the ecological valuation of the seabed
The marine environment is subjected to increasing anthropogenic pressure. Although there is a willingness of the different activities to minimize their impacts, there is a strong need for the assessment of the ecological value of the seabed, comprising both the abiotic substrate and the living …
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Passage Route Survival and Behavior of Juvenile Salmon at Priest Rapids Dam, Columbia River, WA
… the construction of hydropower dams has added anthropogenic pressure to Columbia River salmon populations. Juvenile salmon that pass through powerhouse turbines at large hydropower dams display higher mortality rates than salmon passing through alternative routes; thus at Priest Rapids Dam, a …
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Assessing the utility of open-source data in exploring benthic biodiversity in mining concessions off the South African coast
… in the marine realm is a well-recognised pressure on the marine environment, particularly for the preservation of biodiversity (Majiedt et al. 2019). Data that are openly available, from repositories, guides and within other studies, are a growing resource available to researchers, with …
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Carbon flow and food web structure in the mesopelagic zone of the North Atlantic Ocean
… to understand how the mesopelagic will react to anthropogenic pressure.
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A wetland vulnerability assessment : consequences for the avian communities of saltmarshes
Understanding better the consequences of anthropogenic pressure and environmental change is a substantial area of research for modern conservation ecology. This aim of this research is to investigate these consequences for the avian communities of saltmarshes and associated reed beds. The research …
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Impact of protected forests on rural household fuel tree planting and deforestation: Chiro District, Ethiopia
… that changes with time and space due to anthropogenic pressure and development. Forest cover and land use changes in Chiro District, Ethiopia over a period of 40 years was studied using remotely sensed data. Multi temporal satellite data of Landsat was used to map and monitor forest cover …
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Carbon flow and food web structure in the mesopelagic zone of the North Atlantic Ocean
… to understand how the mesopelagic will react to anthropogenic pressure.
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Assessment of the effect of climate change in anticipated water resources availability in arid climate zones
… change impact and drought phenomena linked with anthropogenic pressure have become a growing concern for water resource managers and policy makers, particularly in arid and semi-arid regions. This research proposes generic methodologies to evaluate the prospective impact of such changes at a …
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Ecological flexibility and conservation of Fleurette's sportive lemur, Lepilemur fleuretae, in the lowland rainforest of Ampasy, Tsitongambarika Protected Area
… algorithm on accelerometer data. I estimated the anthropogenic pressure in the area and I evaluated whether local management and researchers’ presence had an effect in decreasing it. Lepilemur fleuretae at Ampasy is hyperactive when compared to other species of this genus, with longer distances …
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Population genetics and conservation of the endemic Mus cypriacus.
… absent from urban areas or in areas with massive anthropogenic pressure. Even though M. cypriacus has been described to be of least concerned in the IUCN red list, there is lack of information on its ecology and demography, as well as a poor understanding of its genetic population structure. Using …
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Using benthic microalgae as an indicator of recreational disturbance associated with bait collection and trampling in Langebaan Lagoon, South Africa
Coastal environments are subjected to increasing anthropogenic pressure in the form of pollution, habitat destruction, introduction of invasive species, exploitation of coastal services and climate change. There has been an increase in the number of people visiting and living near orin coastal …
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Lion population status and ecology in a seasonally-flooded wetland, the Okavango Delta
… in natural environments that face increasing anthropogenic pressure. The Okavango Delta is a dynamic wetland that undergoes significant ecological change in response to an annual flood pulse, the extent of which is determined by both short-and long-term climatic variation. The resulting …
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Ecological insight into three neotropical deer species: A study of spatial and diel distributions of white-tailed, Central American red brocket, and Yucatan brown brocket deer in northern Belize, Central America
… occupancy and identify habitat, predator, and anthropogenic drivers of species distribution and to quantify overlap in space use between the two species. WTD behaved as an edge-and-corridor generalist, with detection driven by low canopy and high human activity, while RBD aligned with a …
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A camera trap assessment of factors influencing leopard (Panthera pardus) habitat use in the Nouabalé-Ndoki National Park, Republic of Congo
… pardus) are faced with increasing levels of anthropogenic pressure resulting in population declines across much of their historical range. While there is relatively limited knowledge of leopards occurring in African rain forests, their abundance and distribution is assumed to be impacted by a …
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Seeing the light: germination, growth and flowering responses in wildflowers under artificial nighttime lighting
… (ALAN) is predicted to constitute a significant anthropogenic pressure on natural biological systems, which are organized foremost by light, and particularly by daily and seasonal cycles of light and dark. Much of the research on the impacts of nighttime light pollution on organisms has focussed …
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Tree-ring analyses of European oak: implementation and relevance in (pre-)historical research in Flanders.
… woodlands in Western Europe experienced a high anthropogenic influence. In densely populated areas forests were cleared and converted to arable land or were exploited for the supply of firewood and construction timber. In Flanders, it is estimated that the forest cover by the end of the 13th …
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Tree-ring analyses of European oak: implementation and relevance in (pre-)historical research in Flanders
… woodlands in Western Europe experienced a high anthropogenic influence. In densely populated areas forests were cleared and converted to arable land or were exploited for the supply of firewood and construction timber. In Flanders, it is estimated that the forest cover by the end of the 13th …
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Influence of increased sediment exposure on suspension-feeder assemblages in a temperate seagrass meadow
… as land erosion, rainfall, and tidal currents, anthropogenic activities such as land use, road building, logging, mining, port maintenance and dredging, contribute to the discharge of a great amount of sediment in the water column. As sessile suspension-feeder assemblages play a critical role in …
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Pseudoproxy modelling to explore ecosystem dynamics and assess uncertainties in palaeoecology
… ecosystems are experiencing increasing anthropogenic pressure and there is growing concern over how they will respond to such novel pressures. Palaeoecology offers crucial understanding of how ecosystems have responded to environmental change in the past, and provides valuable insight …
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