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Dissertations / Theses on the topic 'Mary River'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

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1

MacDonald, Ryan J., and University of Lethbridge Faculty of Arts and Science. "Modelling the potential impacts of climate change on snowpack in the St. Mary River watershed, Montana." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Geography, c2008, 2008. http://hdl.handle.net/10133/2511.

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Climate change poses significant threats to mountain ecosystems in North America (Barnett et al., 2005) and will subsequently impact water supply for human and ecosystem use. To assess these threats, we must have an understanding of the local variability in hydrometeorological conditions over the mountains. This thesis describes the continued development and application of a fine scale spatial hydrometeorological model, GENESYS (GENerate Earth SYstems Science input). The GENESYS model successfully simulated daily snowpack values for a 10 year trial period and annual runoff volumes for a thirty

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2

Stewart-Koster, Ben Donald. "Modelling Multiscale Relationships in Riverine Landscapes: Putting the "Riverscape" into Statistical Models for River Ecology and Management." Thesis, Griffith University, 2011. http://hdl.handle.net/10072/367114.

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Many questions in ecology involve exploring the environmental processes that influence species’ distributions and abundances in both space and time. Such environmental processes are rarely independent, and generally operate across many scales. This is particularly relevant to riverine systems, where the nested hierarchical structure of the riverscape means fine-scale processes are strongly influenced by processes operating across larger scales. Recent research has identified some key advantages in applying Bayesian hierarchical models to hierarchical ecological problems such as identifying rel

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3

Larson, Robert, and University of Lethbridge Faculty of Arts and Science. "Modelling climate change impacts on mountain snow hydrology, Montana-Alberta." Thesis, Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2008, 2008. http://hdl.handle.net/10133/669.

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A modelling approach focused on snow hydrology was developed and applied to project future changes in spring streamflow volumes in the St. Mary River headwaters basin, Montana. A spatially distributed, physically-based, hydrometeorological and snow mass balance model was refined and used to produce snow water equivalent (SWE) and rainfall surfaces for the study watershed. Snowmelt runoff (SR) and effective rainfall runoff (RR) volumes were compiled for the 1961-2004 historical period. A statistical regression model was developed linking spring streamflow volume (QS) at Babb, Montana to the SR

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McKenny, Claire, and n/a. "The Diversity of Macroinvertebrate Grazers in Streams: Relationships With the Productivity and Composition of Benthic Algae." Griffith University. Australian School of Environmental Studies, 2005. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20060308.131239.

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There has been much interest in the last decade concerning the factors that influence diversity, especially how diversity and ecosystem processes may be linked. This study was based in small, cobble streams in South East Queensland. Its aim was to determine how the diversity and composition of consumers (the grazer guild) is influenced by both the production and composition of benthic algae, at different spatial scales. It also aimed to ascertain whether this response differs among grazer sub guilds with different dispersal capabilities. Ten sites in the Upper Brisbane and Mary catchments were

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McKenny, Claire. "The Diversity of Macroinvertebrate Grazers in Streams: Relationships With the Productivity and Composition of Benthic Algae." Thesis, Griffith University, 2005. http://hdl.handle.net/10072/368092.

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There has been much interest in the last decade concerning the factors that influence diversity, especially how diversity and ecosystem processes may be linked. This study was based in small, cobble streams in South East Queensland. Its aim was to determine how the diversity and composition of consumers (the grazer guild) is influenced by both the production and composition of benthic algae, at different spatial scales. It also aimed to ascertain whether this response differs among grazer sub guilds with different dispersal capabilities. Ten sites in the Upper Brisbane and Mary catchments were

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6

Henderson, Amanda Olivia. "Low-Shield Volcanism: A Comparison of Volcanoes on Syria Planum, Mars and Snake River Plain, Idaho." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/6138.

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Volcanoes are key indicators of a planet's internal structure, mechanics, and evolutionary history. Consequently, understanding the types and ages of volcanoes on a planet's surface is an important endeavor. In an attempt to better understand the relationship between morphometry and volcanic processes, we compared low-shield volcanoes on Syria Planum, Mars, with basaltic shields of the eastern Snake River Plain. We used 133 volcanoes on Syria Planum that are covered by Mars Orbiting Laser Altimeter (MOLA) and High Resolution Stereo Camera (HRSC) elevation data and 246 eSRP shields covered by t

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Crues, Tomas Enrique. "The river and the margins : marginality and escclusion in mark twain's old south." reponame:Repositório Institucional da UFSC, 1998. http://repositorio.ufsc.br/xmlui/handle/123456789/77838.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão<br>Made available in DSpace on 2012-10-17T07:58:03Z (GMT). No. of bitstreams: 0Bitstream added on 2016-01-09T00:30:10Z : No. of bitstreams: 1 149150.pdf: 2615219 bytes, checksum: 94ba9a448de8327b3d0c0d044d40beaa (MD5)

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Goodwin, Kevin R. "American Eel Subpopulation Characteristics in the Potomac River Drainage, Virginia." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/34036.

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The demographic characteristics of American eels (Anguilla rostrata) are believed to vary with latitude and distance inland from the ocean; eels are generally thought to increase in length, age, and the proportion of females in inland and more northerly areas. Understanding this variation is necessary for the sound management of eels, but investigations into characteristics on a broad scale within drainages are scarce. Eels in the Potomac River drainage, Virginia, were sampled over a two-year period in both near-coastal and inland areas to describe characteristics in each area as well as to

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9

Viviers, Joanita. "Seasonal migration and reproductive behaviour of the Common River Frog (Amietia quecketti) / Joanita Viviers." Thesis, North-West University, 2013. http://hdl.handle.net/10394/10212.

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The Common River Frog Amietia quecketti is a well-known and widely distributed species in southern Africa. Despite the fact that it is a common species and quite prevalent in urban areas little is known about its behaviour. The North-West University Botanical Gardens was selected as study area as it supports a healthy population of Common River Frogs at a series of 18 water bodies. Each pond in the Garden was assigned a reference number and the surface area, depth and vegetation were noted. Frogs were located with the aid of strong flashlights. Specimens were caught by hand and transferred to

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10

Musoke, Elizabeth. "Understanding the adoption of soil and water conservation practices: the role of social capital." Diss., Kansas State University, 2017. http://hdl.handle.net/2097/38221.

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Doctor of Philosophy<br>Environmental Design and Planning<br>Timothy D. Keane<br>Kenya has been adversely affected by soil erosion due to population growth, changes in land use and land cover, and unsustainable agricultural practices. Issues related to land degradation cost the Kenyan government approximately $390 million or 3 percent of the country’s GDP yearly (Government of Kenya, 2013). Despite extensive land degradation, many attempts to encourage the use of soil and water conservation (SWC) practices have been unsuccessful. The study focuses on Merigi Ward, Kenya. Merigi Ward lies within

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Mwangi, Hosea M., Padia Lariu, Stefan Julich, Sopan D. Patil, Morag A. McDonald, and Karl-Heinz Feger. "Characterizing the Intensity and Dynamics of Land-Use Change in the Mara River Basin, East Africa." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-233450.

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The objective of this study was to analyze patterns, dynamics and processes of land-use/cover changes in the transboundary Mara River Basin in East Africa. We specifically focused on deforestation and expansion of agriculture in the watershed. The intensity analysis approach was used to analyze data from satellite imagery-derived land-use/cover maps. Results indicate that swap change accounted for more than 50% of the overall change, which shows a very dynamic landscape transformation. Transition from closed forest to open forest was found to be a dominant landscape change, as opposed to a ran

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Mwangi, Hosea M., Stefan Julich, Sopan D. Patil, Morag A. McDonald, and Karl-Heinz Feger. "Relative contribution of land use change and climate variability on discharge of upper Mara River, Kenya." Elsevier, 2016. https://tud.qucosa.de/id/qucosa%3A30418.

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Study region Nyangores River watershed, headwater catchment of Mara River basin in Kenya. Study focus Climate variability and human activities are the main drivers of change of watershed hydrology. The contribution of climate variability and land use change to change in streamflow of Nyangores River, was investigated. Mann Kendall and sequential Mann Kendall tests were used to investigate the presence and breakpoint of a trend in discharge data (1965–2007) respectively. The Budyko framework was used to separate the respective contribution of drivers to change in discharge. Future response o

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Mwangi, Hosea M., Padia Lariu, Stefan Julich, Sopan D. Patil, Morag A. McDonald, and Karl-Heinz Feger. "Characterizing the Intensity and Dynamics of Land-Use Change in the Mara River Basin, East Africa." Molecular Diversity Preservation International MDPI, 2017. https://tud.qucosa.de/id/qucosa%3A30819.

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The objective of this study was to analyze patterns, dynamics and processes of land-use/cover changes in the transboundary Mara River Basin in East Africa. We specifically focused on deforestation and expansion of agriculture in the watershed. The intensity analysis approach was used to analyze data from satellite imagery-derived land-use/cover maps. Results indicate that swap change accounted for more than 50% of the overall change, which shows a very dynamic landscape transformation. Transition from closed forest to open forest was found to be a dominant landscape change, as opposed to a ran

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14

Mwangi, Hosea M., Stefan Julich, Sopan D. Patil, Morag A. McDonald, and Karl-Heinz Feger. "Relative contribution of land use change and climate variability on discharge of upper Mara River, Kenya." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-227067.

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Study region Nyangores River watershed, headwater catchment of Mara River basin in Kenya. Study focus Climate variability and human activities are the main drivers of change of watershed hydrology. The contribution of climate variability and land use change to change in streamflow of Nyangores River, was investigated. Mann Kendall and sequential Mann Kendall tests were used to investigate the presence and breakpoint of a trend in discharge data (1965–2007) respectively. The Budyko framework was used to separate the respective contribution of drivers to change in discharge. Future response o

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15

Mango, Liya M. "Modeling the Effect of Land Use and Climate Change Scenarios on the Water Flux of the Upper Mara River Flow, Kenya." FIU Digital Commons, 2010. http://digitalcommons.fiu.edu/etd/159.

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Increasingly erratic flow in the upper reaches of the Mara River, has directed attention to land use change as the major cause of this problem. The semi-distributed hydrological model SWAT and Landsat imagery were utilized in order to 1) map existing land use practices, 2) determine the impacts of land use change on water flux; and 3) determine the impacts of climate change scenarios on the water flux of the upper Mara River. This study found that land use change scenarios resulted in more erratic discharge while climate change scenarios had a more predictable impact on the discharge and water

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Atisa, George. "Economic assessment of best management practices in the Mara River Basin : toward implementing payment for watershed services." FIU Digital Commons, 2009. http://digitalcommons.fiu.edu/etd/1333.

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The Mara River in East Africa is currently experiencing poor water quality and increased fluctuations in seasonal flow. This study investigated technically effective and economically viable Best Management Practices for adoption in the Mara River Basin of Kenya that can stop further water resources degradation. A survey of 155 farmers was conducted in the upper catchment of the Kenyan side of the river basin. Farmers provided their assessment of BMPs that would best suit their farm in terms of water quality improvement, economic feasibility, and technicalsuitability. Cost data on different pra

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17

com, aeveraardt@hotmail, and Annika Everaardt. "The impact of fire on the honey possum Tarsipes rostratus in the Fitzgerald River National Park, Western Australia." Murdoch University, 2003. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20040611.105120.

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The honey possum Tarsipes rostratus is a tiny (7 - 12 g) highly specialised flower-feeding marsupial endemic to the south-western corner of Australia. The impact of fire on this small mammal was studied, over a 19-year period, in the Fitzgerald River National Park, a large (330,000 ha) area of relatively undisturbed heathland/shrubland, rich in the proteaceous and myrtaceous plants upon which the honey possum appears to rely for food. The honey possum is the most abundant and widespread mammal in this Park. Capture rates of honey possums were significantly related to the years since the

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Mwangi, Hosea Munge. "Impact of Land Use Change and Climate Variability on Watershed Hydrology in the Mara River Basin, East Africa." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-209530.

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Land use change and climate variability are the main drivers of watershed hydrological processes. The main objective of this study was to assess the impact of land use change and climate variability on hydrology of the Mara River Basin in East Africa. Land use maps generated from satellite images were analyzed using the intensity analysis approach to determine the patterns, dynamics and intensity of land use change. Changes in measured streamflow caused separately by land use change and climate variability were separated using the catchment water-energy budget based approach of Budyko framewor

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19

Whitlock, Rebecca Eleanor. "Applying Bayesian mark-recapture and decision analysis methods to evaluate fisheries management options for Fraser River white sturgeon." Thesis, Imperial College London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.542935.

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20

Mwangi, Hosea Munge. "Impact of land use change and climate variability on watershed hydrology in the Mara River Basin, East Africa." Thesis, Bangor University, 2016. https://research.bangor.ac.uk/portal/en/theses/impact-of-land-use-change-and-climate-variability-on-watershed-hydrology-in-the-mara-river-basin-east-africa(54692d94-33ee-40a5-9475-d5f1f7148be3).html.

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Land use change and climate variability are the main drivers of watershed hydrological processes. The main objective of this study was to assess the impact of land use change and climate variability on hydrology of the Mara River Basin in East Africa. Land use maps generated from satellite images were analyzed using the intensity analysis approach to determine the patterns, dynamics and intensity of land use change. Changes in measured streamflow caused separately by land use change and climate variability were separated using the catchment water-energy budget based approach of Budyko framewor

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21

Sousa, Magda Catarina Ferreira de. "Modelling the Minho river plume intrusion into the rias baixas." Doctoral thesis, Universidade de Aveiro, 2013. http://hdl.handle.net/10773/12276.

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Doutoramento em Ciências do Mar e do Ambiente<br>The Minho River, situated 30 km south of the Rias Baixas is the most important freshwater source flowing into the Western Galician Coast (NW of the Iberian Peninsula). This discharge is important to determine the hydrological patterns adjacent to its mouth, particularly close to the Galician coastal region. The buoyancy generated by the Minho plume can flood the Rias Baixas for long periods, reversing the normal estuarine density gradients. Thus, it becomes important to analyse its dynamics as well as the thermohaline patterns of the areas affec

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McMahon, William. "Pre-vegetation alluvium : geological evidence for river behaviour in the absence of land plants." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/276277.

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Pre-vegetation alluvium is unique; at the present day, plants affect multiple aspects of river functioning and deposition and so those rivers that operated before the evolution of land plants largely lack modern sedimentological analogue. However, such rivers were the norm for the first 90% of Earth history and so a better understanding of their sedimentary product enables insight into both the fundamental underlying mechanisms of river behaviour and the ways in which fluvial processes operated on ancient Earth and other rocky planets. This study presents five original fieldwork based case stu

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Defersha, Mengistu Balew. "A multi-scale and multi-approach investigation of sediment yield and runoff flux in the Mara River basin, Kenya." FIU Digital Commons, 2010. http://digitalcommons.fiu.edu/etd/2762.

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The purposes of this study were to identify the current potential sediment source areas and quantify rate of erosion and runoff. Runoff plots were established at three sites and the Water Erosion Prediction Project (WEPP) and Erosion 3D models were applied at watershed scale. The highest total sediment yield was observed on cultivated land (162.38 g/m2) in the Nyangores sub-watershed and the lowest sediment yield (29.95 g/m2) was observed on grassland, in Amala downstream. The model evaluation indicated that both of the models perform well in estimation of runoff, however, the WEPP model perfo

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ZHANG, HENG. "A Journey of Racial Neutrality : the symbolic meaning of the Mississippi in The Adventures of Huckleberry Finn." Thesis, Högskolan Kristianstad, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-5894.

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Bitencourt, Diego Mello. "Descrição pontual de maré, perfil de correntes e suas inter-relações em um ponto do estuário do Rio Mearim, São Luis, Maranhão." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/142122.

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Este estudo visa à descrição pontual do comportamento hidrodinâmico do estuário do Rio Mearim, analisando os padrões de corrente de maré, do registro de marés e das possíveis relações entre eles. Durante novembro e dezembro de 2012 um ADCP foi fundeado no canal do estuário, onde coletou dados por 31 dias. Os dados foram qualificados e processados para futura análise e inter-relações. Foi observado que a coluna de água estuarina no ponto de medição move-se como uma coluna de água homogênea com fluxo bidirecional no eixo NE-SW. As medições ocorreram no período de baixo índice de pluviosidade. O

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Roberts, James H. "Factors Influencing Darter Dispersal Patterns in the Upper Roanoke River Watershed, Virginia." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/34967.

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Effective delineation and management of stream fish populations requires a thorough knowledge of dispersal patterns, because these patterns affect a number of other demographic rates such as population growth, reproduction, survival, and gene flow. Previous studies of stream fish dispersal patterns have generally established species- and stream-specific home ranges and movement rates, but have largely failed to account for the environmental variables that may cause these parameters to vary. Many fishes occupy a variety of streams across a broad spectrum of ecological conditions, and movement

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Dessu, Shimelis B. "Water Demand and Allocation in the Mara River Basin, Kenya/Tanzania in the Face of Land Use Dynamics and Climate Variability." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/861.

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The Mara River Basin (MRB) is endowed with pristine biodiversity, socio-cultural heritage and natural resources. The purpose of my study is to develop and apply an integrated water resource allocation framework for the MRB based on the hydrological processes, water demand and economic factors. The basin was partitioned into twelve sub-basins and the rainfall runoff processes was modeled using the Soil and Water Assessment Tool (SWAT) after satisfactory Nash-Sutcliff efficiency of 0.68 for calibration and 0.43 for validation at Mara Mines station. The impact and uncertainty of climate change on

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Barendregt, Bart A. "From the realm of many rivers : memory, places and notions of home in the southern Sumatran highlands /." [S.l. : s.n], 2005. http://catalogue.bnf.fr/ark:/12148/cb40235154v.

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Garavanta, Carolyn A. M. "A mark-recapture study of the social organisation of the honey possum Tarsipes rostratus in the Fitzgerald River National Park, Western Australia." Thesis, Garavanta, Carolyn A. M. (1997) A mark-recapture study of the social organisation of the honey possum Tarsipes rostratus in the Fitzgerald River National Park, Western Australia. PhD thesis, Murdoch University, 1997. https://researchrepository.murdoch.edu.au/id/eprint/52134/.

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The honey possum Tarsipes rostratus is a small (7-12g) diprotodont marsupial found only in south-western Australia, mainly in sandplain heathlands. Tarsipes, the only non-flying mammal that feeds exclusively on nectar and pollen, shows considerable morphological and physiological adaptation to this specialised diet. Their anatomy, diet and reproduction have been comprehensively described but with the exception of one field study near Albany (Wooller et al. 1981) and a detailed study of the behaviour of captive animals (Russell 1986), little has been published on the spatial and temporal patter

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Garcia, Rivera Mariel Anel [Verfasser], and Mark [Akademischer Betreuer] Brönstrup. "Antibiotic uptake in Pseudomonas aeruginosa and its consequences on the metabolome / Mariel Anel Garcia Rivera ; Betreuer: Mark Brönstrup." Hannover : Gottfried Wilhelm Leibniz Universität, 2021. http://d-nb.info/122961494X/34.

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Carey, Caitlin. "An Evaluation of Population Restoration and Monitoring Techniques for Freshwater Mussels in the Upper Clinch River, Virginia, and Refinement of Culture Methods for Laboratory-Propagated Juveniles." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/24450.

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From 2006-2011, four population reintroduction techniques were applied to three sites within a reach of the upper Clinch River in Virginia designated suitable for population restoration of the federally endangered oyster mussel (Epioblasma capsaeformis). These techniques were: 1) translocation of adults (Site 1), 2) release of laboratory-propagated sub-adults (Site 1), 3) release of 8-week old laboratory-propagated juveniles (Site 2), and 4) release of stream-side infested host fishes (Site 3). Demographic data were collected in 2011 and 2012 by systematic quadrat and capture-mark-recapture sa

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Johnson, James Matthew. "Demography and Behavior of Western Sandpipers (Calidris mauri) Breeding on the Yukon-Kuskokwim River Delta, Alaska." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/28903.

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I conducted demographic and behavioral studies of Western Sandpipers (Calidris mauri) breeding on the Yukon-Kuskokwim River Delta, Alaska (1998-2005). In chapter one, I estimated apparent annual survival (product of true survival and site fidelity) while correcting for the probability of encounter for 237 males and 296 females. Overall return rates (individual returned to the site in a subsequent season) were lower for females (40%) than males (65%), as was apparent annual survival (± SE, females = 0.65 ± 0.05, males = 0.78 ± 0.03), and encounter rate (females = 0.51 ± 0.

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Burfeid, Castellanos Andrea Montserrat. "Ecological factors and diatom diversity at rivers of the iberian mediterranean river basins: macro-scale, meso-scale and micro-scale = Factores ecológicos y diversidad de diatomeas en los ríos de las cuencas hidrográficas del Mediterráneo ibérico: maro-escala, meso-escala y micro-escala." Doctoral thesis, Universitat de Barcelona, 2018. http://hdl.handle.net/10803/663475.

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Benthic diatoms, photoautotrophic, silicate plated, single-celled aquatic organisms dwelling on substrates, have been used in bioindication, since they are good indicators of ecological water state. In this thesis, we have used a multi-scalar approach to observe how diatoms from Spanish Mediterranean rivers are affected by the characteristics of the habitats they live in. These organisms were observed under a taxonomic-indicative, functional-grouped and morphometric prism. The samples stem from Mediterranean rivers pertaining to either the Ebro Basin, or jurisdictions of the Catalan rivers or

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Ribeiro, Cristina Ramalho. "Processos de alterações da maré astronômica na desembocadura da Lagoa dos Patos." reponame:Repositório Institucional da FURG, 2008. http://repositorio.furg.br/handle/1/3521.

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Dissertação(mestrado) - Universidade Federal do Rio Grande, Programa de Pós-Graduação em Engenharia Oceânica, Escola de Engenharia, 2008.<br>Submitted by Lilian M. Silva (lilianmadeirasilva@hotmail.com) on 2013-04-23T20:01:48Z No. of bitstreams: 1 Processos de Alterações Da Maré Astronômica Na Desembocadura da Lagoa Dos Patos.pdf: 5559394 bytes, checksum: d5348a72601c4539f3d215ebe5cbad74 (MD5)<br>Approved for entry into archive by Bruna Vieira(bruninha_vieira@ibest.com.br) on 2013-06-13T17:34:41Z (GMT) No. of bitstreams: 1 Processos de Alterações Da Maré Astronômica Na Desembocadura da Lagoa D

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Ermak, Jessica Lea. "The Social Structure and Mating Strategies of Bottlenose Dolphins (Tursiops truncatus) in the St. Johns River." UNF Digital Commons, 2014. http://digitalcommons.unf.edu/etd/533.

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Across populations, bottlenose dolphins (Tursiops sp.) exhibit a fission-fusion pattern of associations, in which group size and composition change fluidly throughout the day. Beneath this seemingly ephemeral social structure, considerable variation exists across study sites. While females typically have moderate bonds with one another within a large social network, male-male bonds are variable, though males typically take one of two strategies; some males encounter females individually for opportunities to breed while others cooperate within a first-order alliance to collectively herd females

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Kirkland, Graham. "From Rivers to Gardens: The Ambivalent Role of Nature in My Ántonia, O Pioneers!, and Death Comes to the Archbishop." Digital Archive @ GSU, 2010. http://digitalarchive.gsu.edu/english_theses/78.

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Though her early writing owes much to nineteenth-century American Realism, Willa Cather experiments with male and female literary traditions while finding her own modern literary voice. In the process Cather gives nature an ambivalent role in My Ántonia, O Pioneers!, and Death Comes to the Archbishop. She produces a tension between rivers and gardens, places where nature and culture converge. Like Mary Austin and Sarah Orne Jewett, Willa Cather confronts the boundaries between humans and nature.

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Silva, Elaine Rosangela Leutwiler di Giacomo. "Associação da variabilidade climática dos oceanos com a vazão de rios da Região Norte do Brasil." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/8/8135/tde-30072013-102659/.

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O objetivo desta pesquisa foi investigar a relação linear existente entre a Temperatura de Superfície do Mar (TSM) dos oceanos Pacífico e Atlântico e a vazão do rio Madeira, localizado na parte sul da região Norte do Brasil. A investigação foi feita nas escalas mensal, sazonal e anual, para o período de 1968 a 2009. A hipótese de que alterações climáticas na região Norte do Brasil estariam associadas a episódios de aquecimento e resfriamento dos oceanos globais, já que quando ocorrem têm o potencial de modificar o padrão de precipitação em áreas remotas do globo, foi a motivação central da pes

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Graham, Philip Mark. "Modelling the water quality in dams within the Umgeni Water operational area with emphasis on algal relations / Philip Mark Graham." Thesis, North-West University, 2007. http://hdl.handle.net/10394/1022.

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Based on many years of water quality (including algal) and water treatment cost data, available at Umgeni Water, a study was undertaken to better understand the water quality relationships in man made lakes within the company's operational area, and to investigate how water quality affected the cost of treating water from these lakes. The broad aims to the study were to: identify the key environmental variables that were affecting algal populations in lakes; and if these were significant to establish predictive models relating algae to the water quality; and to develop models relating the wate

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Neves, Fernanda Volpon. "Análise morfológica da evolução da captura do rio Guaratuba (Bertioga-SP) através da técnica de datação por luminescência opticamente estimulada (LOE)." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/8/8135/tde-08012013-125447/.

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A Serra do Mar pertence ao complexo litorâneo brasileiro, preenchendo todo o litoral desde Santa Catarina até o Rio de Janeiro. As feições de seu relevo são peculiares, resultantes de um tectonismo recente com acelerado processo de intemperismo, que acarreta em feições distintas ao longo de todo o complexo da Serra do Mar. A evolução deste relevo tem como fator resultante a adequação da drenagem às falhas e rupturas presentes nas rochas. Desta forma a evolução da Serra do Mar e compreensão das anomalias de drenagem, tal como a Captura Fluvial do alto rio Guaratuba, passa a ser ponto de investi

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Hua, Dan. "Propagation and monitoring of freshwater mussels released into the Clinch and Powell rivers, Virginia and Tennessee." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/51755.

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Freshwater mussels (Unionidae) in the United States have experienced dramatic declines, and 25% species are listed as federally endangered. Hence, recovery plans for endangered species proposed a strategy of propagation of young mussels for release to natal rivers to augment declining populations. In this study, I conducted laboratory experiments, assessed site suitability for mussel restoration, and evaluated survival and growth rates of released mussels to meet the requirements of recovery plan. I conducted multiple experiments to develop an improved protocol for juvenile mussel propagatio

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Dmitrieva, Tatiana. "Perceptions, réglementations et mesures de la qualité des eaux de surface en France, 1854-1964. Le cas des eaux de la ville de Versailles." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066341/document.

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La dégradation de la qualité de l’eau de la Seine à Paris et dans sa banlieue depuis la deuxième moitié du XIXe siècle a fait l’objet de plusieurs études. Rares sont les études qui confrontent les perceptions de médecins, d’ingénieurs, d’hygiénistes ou d’administrateurs sur la qualité des eaux des rivières et l’évolution de leur état. Cette confrontation permet d’analyser sur la longue durée l’efficacité des réponses apportées pour améliorer la qualité, ce que nous avons réalisé ici pour la ville de Versailles et ses eaux. La première partie du mémoire décrit les perceptions de la qualité des

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Reig, Alejandro. "When the forest world is not wide enough we open up many clearings : the making of landscape, place and people among the Shitari Yanomami of the upper Ocamo basin, Venezuela." Thesis, University of Oxford, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.669819.

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Roghair, Craig N. "Recovery From and Effects of a Catastrophic Flood and Debris Flow on the Brook Trout (Salvelinus fontinalis) Population and Instream Habitat of the Staunton River, Shenandoah National Park, VA." Thesis, Virginia Tech, 2000. http://hdl.handle.net/10919/34286.

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The Staunton River is a high gradient, second order stream approximately 6 km in length located on the eastern slope of the Blue Ridge Mountains in Shenandoah National Park, VA. In June 1995, a catastrophic flood and debris flow altered the instream habitat and <i>Salvelinus fontinalis</i> population of the Staunton River. The debris flow scoured the streambed, deposited new substrate materials, removed trees from the riparian zone, and eliminated fish from a 1.9km section of the stream. By June 1998, both young-of-year (YOY) and age 1+ <i>S. fontinalis</i> had recolonized the debris flow af

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Mwangi, Hosea Munge [Verfasser], Karl-Heinz [Akademischer Betreuer] Feger, Morag [Akademischer Betreuer] McDonald, Karl-Heinz [Gutachter] Feger, and Martin [Gutachter] Volk. "Impact of Land Use Change and Climate Variability on Watershed Hydrology in the Mara River Basin, East Africa / Hosea Munge Mwangi ; Gutachter: Karl-Heinz Feger, Martin Volk ; Karl-Heinz Feger, Morag McDonald." Dresden : Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://d-nb.info/1150309458/34.

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Costa, Karine Mirieli dos Santos. "Variabilidade oceânica associada à variabilidade climática da vazão na bacia do rio São Francisco." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/8/8135/tde-17072012-161148/.

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Esta pesquisa tem como objetivo avaliar a relação existente entre o comportamento anual dos oceanos e o da vazão na Bacia do Rio São Francisco, Brasil, para o período de 1968 a 2004. Foram construídos modelos de regressão linear múltipla para simular o valor da vazão anual em Ponte da Taquara, Alto São Francisco, com base em índices climáticos e no valor médio da Temperatura da Superfície do Mar (TSM) em áreas específicas dos oceanos Pacífico e Atlântico. Os índices climáticos considerados foram a Oscilação Decadal do Pacífico (ODP), Indice de Oscilação Sul (IOS) e anomalias de TSM nas regiões

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Oliveira, Déborah de. "A captura do Alto Rio Guaratuba: uma proposta metodológica para o estudo da evolução do relevo na Serra do Mar, Boracéia - SP." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/8/8135/tde-05052004-134328/.

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Este trabalho trata da captura da bacia do Alto Guaratuba, devido ao recuo da Escarpa da Serra do Mar na região de Boracéia-SP. A bacia do Alto Guaratuba localiza-se no reverso imediato da Escarpa da Serra do Mar, a aproximadamente 45056 e 45052 de longitude oeste e 23038 e 23042 de latitude sul, onde situa-se a Estação Biológica de Boracéia (USP), A Serra do Mar corresponde a um conjunto de escarpas festonadas com cerca de 1.000km de extensão, que vai de Santa Catarina ao Rio de Janeiro. Sua origem está relacionada a processos tectônicos de movimentação vertical realizadas no Cenozóico

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Magris, Rafael Almeida. "Variabilidade Interanual e Sazonal na Comunidade de Copepoda Relacionada ao Regime de Marés em um Estuário Tropical (Rio Mucuri, Brasil)." Universidade Federal do Espírito Santo, 2008. http://repositorio.ufes.br/handle/10/5721.

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Made available in DSpace on 2016-12-23T13:47:35Z (GMT). No. of bitstreams: 1 Rafael Almeida Magris.pdf: 1237040 bytes, checksum: 07bea7179db169152f53f5f9f64662ff (MD5) Previous issue date: 2008-03-24<br>A variabilidade interanual, sazonal e entre as fases da maré da comunidade de Copepoda no estuário do rio Mucuri (Bahia, Brasil) foi estudada. Foram coletadas amostras de plâncton em cada estação do ano por um período de cinco anos (2002-2006) em três pontos de amostragem; sendo que em um deles, as amostragens aconteceram de acordo com o ciclo de marés (duas na enchente e duas na vazante). Da

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Presado, Patrícia Valente. ""Distribuição, abundância e estrutura dimensional das espécies exóticas Blackfordia virginica (Mayer, 1910) e Corbicula fluminea (Müller, 1774) no estuário do Mira"." Master's thesis, Universidade de Évora, 2012. http://hdl.handle.net/10174/15927.

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O cnidário Blackfordia virginica e o bivalve Corbicula fluminea são duas espécies exóticas muito abundantes no estuário do Mira, pelo que este trabalho teve como principais objectivos determinar a distribuição espacial e o estado das suas populações. B. virginica foi registada em salinidades entre 7 e 32 e verificou-se que a fase medusa se desloca com a massa de água ao longo do ciclo de maré, atingindo densidades superiores a 370 indivíduos/m3. Os indivíduos de maior diâmetro encontram-se em salinidades mais elevadas e os mais pequenos em salinidade inferiores. Amostragens efectuadas ao longo

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Delacroix, Barbara. "De brignatium à gesoriacum : les amers, les navires et les ports en mare externum sous l'empire Romain." Thesis, Lille 3, 2016. http://www.theses.fr/2016LIL30044.

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La navigation sur l’arc atlantique à l’époque romaine est un sujet immense qui pâtit encore trop souvent de l’avis sceptique de chercheurs obnubilés par la Méditerranée. Il a donc fallu détricoter le mythe de l’océan infranchissable par l’étude approfondie des éléments interdépendants constitutifs de la navigation fluvio-maritime et moteurs de l’économie de l’arc atlantique, à savoir : l’amer, le navire et le port. Aussi l’étude de l’organisation du commerce atlantique sur les voies fluviales et maritimes, de La Corogne à Boulogne-sur-Mer, a-t-elle abouti à l’établissement d’une typologie « at

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TAVARES, Daniela Passos Simões de Almeida. "Fluidodinâmica da dispersão de óleo a partir de vazamento em Riser Submarino tipo Catenária: análise de plumas multifásicas." Universidade Federal de Campina Grande, 2016. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/280.

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Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-03-12T15:40:08Z No. of bitstreams: 1 DANIELA PASSOS SIMÕES DE ALMEIDA TAVARES - TESE PPGEQ 2016..pdf: 15494076 bytes, checksum: 86040371b4c9f0e560658409f7d3b95d (MD5)<br>Made available in DSpace on 2018-03-12T15:40:08Z (GMT). No. of bitstreams: 1 DANIELA PASSOS SIMÕES DE ALMEIDA TAVARES - TESE PPGEQ 2016..pdf: 15494076 bytes, checksum: 86040371b4c9f0e560658409f7d3b95d (MD5) Previous issue date: 2016-08-18<br>Capes<br>O vazamento de fluidos tóxicos em tubulações submarinas devido à corrosão, erosão ou falhas na estrutura

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