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Rozprawy doktorskie na temat „Northern rivers”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 1 lutego 2022

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1

Mustow, Stephen Eric. "Aquatic macroinvertebrates and environmental quality in rivers in Northern Thailand." Thesis, University of London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266399.

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2

Dodkins, Ian Robert. "Developing a macrophyte index of ecological status for Northern Ireland's rivers." Thesis, University of Ulster, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.232838.

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3

Eberhardt, Ellen. "Dynamics of intermediate-size stream outlets, northern Oregon coast." PDXScholar, 1988. https://pdxscholar.library.pdx.edu/open_access_etds/3787.

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This study measured and evaluated the relation of coastal foredune morphology to stream beach outlets, and investigated the processes associated with the stream outlet. Intermediate-size streams were studied, and defined as those that flow across the beach most of the year but have no tidal influence. Fifty-four of these streams were found along the northern Oregon coast between the Columbia River and Yaquina Bay. Crescent Lake Outlet, Saltair Creek and Daley Lake Outlet were chosen as study streams for further investigation.

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4

Eriksson, Tobias. "Variations in bioavailability of dissolved organic matter during a spring flood episode in northern Sweden /." Umeå : Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/9658927.pdf.

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5

Norris, James 1953. "Preliminary hydraulic characterization of a fractured schist aquifer at the Koongarra uranium deposit, Northern Territory, Australia." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/291720.

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The Koongarra uranium deposit is hosted by quartz-chlorite schists. A conceptual model for the hydrogeology of the deposit is proposed on the basis of lithologic criteria and limited hydraulic testing. Water-level and aquifer-test data are presented that indicate the deposit lies within a partially confined, heterogeneous, anisotropic fractured-rock aquifer. The aquifer is dynamic with annual, diurnal, and semidiurnal water-level fluctuations. The results of aquifer tests indicate a high degree of connectivity in the aquifer. Fracture-dominated flow is observed in some tests, but the overall a

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6

Östergren, Johan. "Migration and genetic structure of Salmo salar and Salmo trutta in northern Swedish rivers /." Umeå : Dept. of Aquaculture, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/2006112.pdf.

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O'Connor, William C. K. "An investigation of Atlantic salmon (Salmo salar L.) spawning habitat in Northern Ireland rivers." Thesis, University of Ulster, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268548.

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8

Plumer, Hannah. "Health among the Maya : comparisons across sites in the northern Three Rivers Region, Belize." Thesis, University of Sheffield, 2017. http://etheses.whiterose.ac.uk/17969/.

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The aim of this research is to examine the health indicators of the northern Three Rivers Region and compare the results to the larger context of health of the ancient lowland Maya. The research was completed through the analysis of the skeletal populations of three separate Maya sites: Blue Creek, Nojol Nah, and Xnoha, and by comparing results within and among the three sites for a total sample size of 222 individuals. The northern Three Rivers Region had an occupation spanning from the Middle Preclassic through the Terminal Classic periods. Therefore, health through time, as well as between

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9

Lusardi, Robert A., Michael T. Bogan, Peter B. Moyle, and Randy A. Dahlgren. "Environment shapes invertebrate assemblage structure differences between volcanic spring-fed and runoff rivers in northern California." UNIV CHICAGO PRESS, 2016. http://hdl.handle.net/10150/621412.

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Flow variability plays an important role in structuring lotic communities, yet comparatively little is known about processes governing assemblage dynamics in stream ecosystems with stable environmental conditions, such as spring-fed rivers. Volcanic spring-fed rivers (hereafter spring-fed rivers) occur in geologically active landscapes of the western USA and around the globe. We sampled invertebrate assemblages and quantified primary productivity and habitat characteristics of spring-fed and runoff rivers in northern California over 4 seasons. We predicted that abiotic factors would be more st

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10

Crawford, Joseph L. "Effects of Inorganic Nutrients and Dissolved Organic Carbon on Oxygen Demand in Select Rivers in Northern Utah." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/1959.

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Sewage, agricultural runoff, and atmospheric deposition have greatly increased the amount of nutrients (largely nitrogen (N) and phosphorus (P)) in surface water nationwide. Excess nutrients are associated with algal blooms and dissolved oxygen depletion in many water bodies, but linkages between nutrients and dissolved oxygen have been largely correlative. Biochemical oxygen demand (BOD) is a regulated water quality parameter that is aimed at describing the amount of oxygen consumed during the decomposition of organic matter. Despite the awareness that excess nutrients are linked to dissolved

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11

Bubb, Damian H. "Spatial ecology of white-clawed crayfish Austropotamobius pallipes and signal crayfish Pacifastacus leniusculus in upland rivers, northern England." Thesis, Durham University, 2004. http://etheses.dur.ac.uk/3118/.

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The American signal crayfish Pacifastacus lernusculus, an invasive species widely introduced throughout Europe, is a major threat to native European crayfish species and is causing increasing concern because of its wide impact on aquatic ecosystems. This thesis investigates the within catchment expansion of signal crayfish populations in two upland rivers and the spatial ecology and movement of the introduced signal crayfish and the indigenous white-clawed crayfish Austropotamobius pallipes. Populations of signal crayfish are established and expanding on the upland rivers Wharfe and Ure. On th

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12

Johansson, Petter. "Temporal coherence in Salmo trutta in Swedish streams/rivers : Analyze of long term monitoring data on trout abundance in northern Sweden." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-105667.

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By using long-term monitoring data on trout (Salmo trutta) abundance in streams and rivers in northern Sweden synchronous patterns of trout abundance at both regional and local (i.e., within watershed) scales was investigated. Spearman’s rank correlation tests were conducted on the trout abundance data to quantify the degree of synchrony among and within watersheds. The results showed synchronous patterns at both local and regional scales. There were also signs of asynchronous patterns, which indicate presence of local scale filters and their impact on trout population dynamics. Synchrony for

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13

Fredriksson, Emelie. "Riparian vegetation responses to hydropeaking : Experimental study on germination and performance of plants along rivers regulated by hydropower dams in northern Sweden." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-118745.

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Riparian vegetation is one of the most complex and abundant ecosystems in the world and it provides important ecosystem services. These services are affected by electricity production from hydropower dams. Hydropower accounts for 16% of the global electricity production and almost 50% in Sweden. One effect of hydropower is sub-daily fluctuations of water level caused by the turbines being turned on and off according to electricity demand. This is referred to as hydropeaking and has largely unknown effects on the fluvial ecosystem, and especially on the riparian vegetation. No studies have been

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14

Alexandre, Carlos Manuel Engeitado. "Effects of flow regulation in the life-cycles of a mediterranean cyprinid species, the Iberian chub (Squalius carolitertii Doadrio, 1987)." Master's thesis, Universidade de Évora, 2016. http://hdl.handle.net/10174/19735.

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Streamflow is considered a driver of inter and intra‐specific life‐history differences among freshwater fish. Therefore, dams and related flow regulation, can have deleterious impacts on their life‐cycles. The main objective of this study is to assess the effects of flow regulation on the growth and reproduction of a non‐migratory fish species. During one year, samples were collected from two populations of Iberian chub, inhabiting rivers with non‐regulated and regulated flow regimes. Flow regulation for water derivation promoted changes in chub’s condition, duration of gonad maturation and sp

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15

Jackson, Christopher. "A microstructural kinematic study of selected shear zones in the Hartbees River Thrust Belt, northeastern Namaqua Tectonic Province." Thesis, Rhodes University, 1992. http://hdl.handle.net/10962/d1005588.

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The Hartbees River Thrust Belt (HRTS) is a 40-60 km wide, southwest-vergent zone of complex structure, lithostratigraphy and high-grade metamorphism in the northeastern part of the mid-Proterozoic Namaqua Tectonic Province. The HRTS comprises the boundary zone separating the Bushmanland and Gordonia Subprovinces of the Namaqua Province. A knowledge of the movement histories of major ductile shear zones within the HRTS is fundamental to understanding the tectonic development of the belt, and Namaqua tectogenesis as a whole. In spite of this, no detailed microstructural kinematic studies have be

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16

Nagy, Murielle Ida. "Caribou exploitation at the Trail River site, northern Yukon." [Whitehorse] : Yukon, Heritage Branch, 1990. http://catalog.hathitrust.org/api/volumes/oclc/22388292.html.

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17

Bich, Joel P. "The Feasibility of River Otter Reintroduction in Northern Utah." DigitalCommons@USU, 1988. https://digitalcommons.usu.edu/etd/6454.

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The purpose of this thesis is to document river otter (Lutra canadensis) distribution and reintroduction potential in northern Utah. Distribution was studied using data from 3 sources: 1) otter sighting records from Utah Division of Wildlife Resources; 2) surveys of Utah furbearer trappers and natural resources personnel; and 3) searches of streams for otter sign. Potential for river otter habitat/reintroduction was evaluated by assessing food, cover, and reintroduction attributes. Streams were ranked using an evaluation system based on data from the otter literature. Forty-six positive otter

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18

Brand, Desiree. "The co-design of a visual arts-based intervention within the community of the Olifants River valley in South Africa." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2509.

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Thesis (MTech (Design)--Cape Peninsula University of Technology, 2016.<br>The research was motivated by my lived experience in the Olifants River community of Namaqualand. In this community there are many diverse ethnic and social groupings with considerable potential to contribute to indigenous knowledge and creative practices. These groupings are, however, fragmented, with no platform for their varied and rich cultural assets to be displayed and acknowledged. In addition, the research was motivated by the call for a platform for the arts in the region. It is argued that visual art practice i

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19

Burger, Henning (Henning Jacobus) 1978. "Comparative analysis of four early white, seedless table grape cultivars in the Orange River area." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52739.

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Thesis (MScAgric) -- University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: The table grape industry is a major contributor to the South African economy, directly through foreign earnings from this predominantly export-based industry, as well as indirectly through the employment of thousands of people. It is a growing industry and consists of several production areas. The fastest growing table grape production area in South Africa is the Lower Orange River area, which produces some of the earliest grapes in the Southern Hemisphere. The biggest river in South Africa irrigates this area an

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20

Nickels, Scot 1959. "Northern conservation and tourism : the perceptions of Clyde River Inuit." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56650.

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This thesis focuses upon Clyde River Inuit knowledge, concerns, and attitudes to community tourism development and protected area establishment. The findings suggest that a cross-section of residents have a positive attitude toward community tourism development because it may provide local economic benefits. Residents also support the Igalirtuuq Conservation Proposal because it protects the endangered bowhead whale and its critical habitat, while at the same time stimulating tourism development. Clyde Inuit are reluctant to attribute social and environmental costs to these initiatives but are,

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21

Simpson, Christopher J. "Fluvial geomorphology of the sand bed Milk River, northern Montana." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0020/MQ48043.pdf.

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22

Kingston, Daniel George. "Climate-river flow relationships across the northern North Atlantic region." Thesis, University of Birmingham, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.483703.

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23

McDermott, Lindsay. "Contrasting livelihoods in the upper and lower Gariep River basin: a study of livelihood change and household development." Thesis, Rhodes University, 2006. http://hdl.handle.net/10962/d1007147.

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This study investigated rural livelihoods in two contrasting environments in the upper and lower reaches of the Gariep River: Sehlabathebe in the Lesotho highlands, and the Richtersveld in the Northern Cape, and how these have changed over time. Livelihoods were examined using the Sustainable Livelihoods Framework in conjunction with the household development cycle. This study therefore adopted a multi-scale approach, where a micro-level household analysis was framed within the macro level social, political, environmental, economic and institutional context, while taking into account the role

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24

Passmore, David G. "River response to Holocene environmental change : the Tyne basin, northern England." Thesis, University of Newcastle Upon Tyne, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239149.

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25

Drugge, Lisbeth. "Geochemistry of the Lule River, northern Sweden, before and after regulation." Licentiate thesis, Luleå tekniska universitet, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-25856.

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The Lule River is the largest and most important river for hydropower production in Sweden. This river, situated in the northern part of the country, has been regulated since the beginning of the 20th century and is heavily regulated with 15 power stations. The major aim of this study is to quantify the transport of nutrients and other elements in a reservoir, Stora Lulevatten, since knowledge about processes in upstream reservoirs is limited. Monthly sampling of the filtered (<0.22m) phase of river water was performed at the Porjus and Vietas power stations over a period of 15 months. To quan

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26

Allen, Eric B. "Dendrochronology in Northern Utah: Modeling Sensitivity and Reconstructing Logan River Flows." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/1716.

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Semi-arid valleys in northern Utah are home to the majority of the state population and are dependent upon winter snowpack in surrounding mountains for water for irrigation, hydropower and municipal use. Water is delivered to the urban areas in the spring as discharge in rivers draining the mountains. Understanding the natural variability and cycles of wet and dry periods enables water managers to make informed water allocations. However, the complex regional climate teleconnections are not well understood and the shortness of the instrumental period does not allow for a full understanding

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27

Gilmour, Daniel McGowan. "Chronology and Ecology of Late Pleistocene Megafauna in the Northern Willamette Valley, Oregon." PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/416.

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This study is an investigation of the timing of extinction of late Pleistocene, large bodied mammalian herbivores (megafauna) and of the environment in which they lived. The demise of the megafauna near the end of the Pleistocene remains unexplained. Owing to potential human involvement in the extinctions, archaeologists have been particularly concerned to understand the causes for faunal losses. Our current lack of understanding of the timing and the causes of the extinctions in North America may result from a deficiency in understanding the histories of each individual species of extinct ani

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28

Krause, Franz. "Thinking like a river : an anthropology of water and its uses along the Kemi River, Northern Finland." Thesis, University of Aberdeen, 2010. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=158414.

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This thesis explores in what ways Kemi River dwellers in the Finnish province of Lapland use and have used the waters of their home river, and how their skills and experiences are reflected in their conceptualisation of the riverine world. Based on a year of ethnographic fieldwork, I portray river dwellers’ relations with the Kemi, focusing on practices and narratives and how the flow of water and other matter figures in them. Having undergone radical transformation over the course of people’s lives, the river is tightly interwoven with personal biographies. An environmental history reveals h

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29

Petchprayoon, Pakorn. "The effects of urbanization on river discharge and river flood potential in a central northern watershed, Thailand." Connect to online resource, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1453537.

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Adewole, Oriade Emmanuel. "Overpressure in the Northern Niger Delta Basin, Nigeria : mechanisms, predictability and classification." Thesis, University of Aberdeen, 2013. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=211408.

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Mulvihill, Peter Royston. "Environmental assessment and viable interdependence, the great whale river case in Northern Quebec." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq26705.pdf.

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32

Grover, Christi M. "A GIS-based hydrologic restoration analysis for the Northern Indian River Lagoon watershed." [Gainesville, Fla.] : University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0001169.

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Longfield, Sean Anthony. "River response to recent environmental change in the Yorkshire Ouse basin, northern England." Thesis, University of Leeds, 1998. http://etheses.whiterose.ac.uk/2756/.

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This study examines historical variations in flood frequency and magnitude in the Yorkshire Ouse basin, northern England, over the last 900 years. The causes of temporal and spatial variations in flooding are evaluated through investigation o f climatic and land-use controls. Documentary evidence o f flooding and climate suggests that a series of large floods between 1263 and 1360 were associated with climatic deterioration from the Medieval Optimum. A shift to generally milder conditions between 1361 and 1549 resulted in no floods being documented in the Ouse basin The frequency o f large mag

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34

Boege-Tobin, Deborah Dorothy. "Ranging patterns and habitat utilization of northern river otters, Lontra canadensis, in Missouri implications for the conservation of a reintroduced species /." Diss., St. Louis, Mo. : University of Missouri--St. Louis, 2005. http://etd.umsl.edu/r1061.

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Gill, D. Robert. "Hydrogeologic analysis of streamflow in relation to underground mining in northern West Virginia." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1343.

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Thesis (M.S.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains xii, 140 p. : ill. (some col.), maps (some col.). Includes abstract. Includes bibliographical references (p. 120-122).

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36

Shaw, Samuel. "Effects of Mass Wasting and Uplift on Fluvial Networks within the Central Franciscan Melange Complex - Eel River, CA." Thesis, University of Oregon, 2018. http://hdl.handle.net/1794/23145.

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The Eel River watershed has a high concentration of slow-moving landslides, or earthflows, due to argillaceous mélange bedrock and high tectonic uplift. Earthflows within this area are highly dissected by ephemeral channels, or gullies. Despite the pervasiveness of gullying in this area, the role of fluvial systems in relation to earthflows and varying uplift is poorly understood. To understand the role of earthflows and tectonics in dictating channel processes, we investigate channels in areas of differential uplift and mass failure activity. Channel networks are connected and continuous in

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37

Nguyen-Thi-Hong-Lieu. "Holocene evolution of the Central Red River Delta, Northern Vietnam lithological and mineralogical investigations /." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=984458751.

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Dyer, Rodd MacGregor. "Fire and vegetation management in pasture lands of the Victoria River District, Northern Territory /." St. Lucia, Qld, 2001. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16803.pdf.

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Tikalsky, Bryan P. "An 828 Year Streamflow Reconstruction for the Jordan River Drainage Basin of Northern Utah." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2028.pdf.

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Jamison, Levi Ryder, and Levi Ryder Jamison. "Population Dynamics of the Northern Tamarisk Beetle (Diorhabda carinulata) Within the Colorado River Basin." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/622863.

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The Northern tamarisk beetle (Diorhabda carinulata) was introduced to the Colorado River Basin in 2004 as a biological control agent for the invasive shrub: tamarisk (Tamarix spp.). Since 2004, D. carinulata has colonized much of the Colorado River Basin, defoliating tamarisk and adapting to local abiotic cues as it has spread across the landscape. I studied the interplay of abiotic cues, tamarisk defoliation, and the population dynamics of D. carinulata along portions of the Colorado, Dolores, and San Juan rivers from 2007-2012. My results suggest that the timing and location of tamarisk defo

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41

Agafonov, Leonid I., David M. Meko, and Irina P. Panyushkina. "Reconstruction of Ob River, Russia, discharge from ring widths of floodplain trees." ELSEVIER SCIENCE BV, 2016. http://hdl.handle.net/10150/622663.

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The Ob is the third largest Eurasian river supplying heat and freshwater to the Arctic Ocean. These inputs influence water salinity, ice coverage, ocean temperatures and ocean circulation, and ultimately the global climate system. Variability of Ob River flow on long time scales is poorly understood, however, because gaged flow records are short. Eleven tree-ring width chronologies of Pinus sibirica and Larix sibirica are developed from the floodplain of the Lower Ob River, analyzed for hydroclimatic signal and applied as predictors in a regression model to reconstruct 8-month average (Decembe

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42

Chun, Nicholas. "Identifying Clusters of Non-Farm Activity within Exclusive Farm Use Zones in the Northern Willamette Valley." Thesis, Portland State University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10600978.

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<p> This thesis provides an extensive look at where permitted non-farm uses and dwellings have clustered within Exclusive Farm Use (EFU) zones in the Northern Willamette Valley in Oregon. There is a looming concern that non-farm related uses and dwellings, or non-farm development, are conflicting with agricultural preservation strategies. Specifically, non-farm developments can potentially undermine the critical mass of farmland needed to keep the agricultural economy sustainable, but until now, studies have lacked spatially precise data to systematically track these phenomena. This thesis off

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43

Brielmann, Heike. "Recharge and discharge mechanism and dynamics in the mountainous northern Upper Jordan River Catchment, Israel." Diss., lmu, 2008. http://nbn-resolving.de/urn:nbn:de:bvb:19-99727.

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Dumbrell, Melissa J. "Riverbank characteristics and stability along the upper estuarine reaches of the Moose River, northern Ontario." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ56668.pdf.

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Scully, Malcolm E. "Modeling of Critically-Stratified Gravity Flows: Application to the Eel River Continental Shelf, Northern California." W&M ScholarWorks, 2001. http://www.vims.edu/physical/projects/CHSD/publications/reports/S2001%5FMS.pdf.

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Venance, Katherine Elizabeth Carleton University Dissertation Earth Sciences. "Low pressure metamorphism of the Torp Lake area, Northern Hood River belt, Slave Structural Province." Ottawa, 1994.

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47

Day, Casey Craig. "Translocation Mortality and Local, Regional, and Continental Diet of the Northern River Otter (Lontra canadensis)." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3749.

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The northern river otter (Lontra canadensis) is a semi-aquatic carnivore whose range extends throughout most of the United States and Canada. The northern river otter experienced a severe range contraction post-European settlement, but due to widespread management has in recent decades begun to recover much of its former range and habitat. We translocated 27 river otters from Utah and Idaho to the Provo River, Utah from November 2009 through January 2012 in a reintroduction effort to restore the northern river otter to its native range. Of these 27 otters, 6 died as a result of effects related

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Shaw, Matthew. "A landscape approach to the surface archaeology of the Bos River, Tankwa Karoo, Northern Cape." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/27446.

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Much of our current understanding of prehistoric human behavioural patterns during the Stone Age, is derived particularly from a robust set of chronological and technological sequences from caves and rock shelters, with some focus on open-air sites. The information gained from shelters cannot be ignored or downplayed, however, they offer a spatially and temporally limited view of prehistoric lifeways. The aim of this thesis is to provide an understanding of landscape use during the Stone Ages along the Bos River in the Tankwa Karoo, Northern Cape. Surveys were carried out around the Bos River,

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Yuan, Yujiang, Xuemei Shao, Wenshou Wei, Shulong Yu, Yuan Gong, and Valerie Trouet. "The Potential To Reconstruct Manasi River Streamflow In The Northern Tien Shan Mountains (NW China)." Tree-Ring Society, 2007. http://hdl.handle.net/10150/622559.

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We present a tree-ring based reconstruction of water-year (October–September) streamflow for the Manasi River in the northern Tien Shan mountains in northwestern China. We developed eight Tien Shan spruce (Picea schrenkiana Fisch. et Mey.) chronologies for this purpose, which showed a common climatic signal. The hydroclimatic forcing driving tree growth variability affected streamflow with a three- to four-year lag. The model used to estimate streamflow is based on the average of three chronologies and reflects the autoregressive structure of the streamflow time series. The model explains 51%

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Davis, Joanne Elizabeth. "Geographic distribution of southern- and northern-form brook trout populations in southwestern Virginia." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/33839.

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The brook trout <i>Salvelinus fontinalis</i> is the only salmonid native to the southern Appalachian Mountains, and is distributed across eastern North America from Canada to Georgia. This species was once abundant in coldwater lakes and streams throughout its range, but environmental disturbances and the introduction of non-native species have drastically reduced the number and sizes of wild populations. Genetic evidence suggests a division at the subspecies level between southern- and northern-derived brook trout populations, with the break between the two forms occurring roughly at the New

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