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  • 1
    Online Resource
    Online Resource
    Braided Rivers : Process, Deposits, Ecology and Management. (2006)
    Newark :John Wiley & Sons, Incorporated,
    Details
    Keywords: Braided rivers. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (400 pages)
    Edition: 1st ed.
    ISBN: 9781444304381
    Series Statement: International Association of Sedimentologists Series ; v.21
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=428287
    DDC: 333.9162
    Language: English
    Note: Intro -- Acknowledgements -- Braided rivers: where have we come in 10 years? Progress and future needs GREG SAMBROOK SMITH*, JIM BEST † , CHARLIE BRISTOW ‡ and GEOFF PETTS* -- Depositional models of braided rivers JOHN S. BRIDGE and IAN A. LUNT 1 -- A sedimentological model to characterize braided river deposits for hydrogeological applications PETER HUGGENBERGER and CHRISTIAN REGLI -- Scaling and hierarchy in braided rivers and their deposits: examples and implications for reservoir modelling SEAN KELLY -- Approaching the system-scale understanding of braided river behaviour STUART N. LANE -- Cellular modelling of braided river form and process A.P. NICHOLAS, R. THOMAS and T.A. QUINE -- Numerical modelling of alternate bars in shallow channels A. BERNINI, V. CALEFFI and A. VALIANI -- Methods for assessing exploratory computational models of braided rivers ANDREA B. DOESCHL* ,1 , PETER E. ASHMORE † and MATT DAVISON* -- Bed load transport in braided gravel-bed rivers CHRISTIAN MARTI and GIAN RETO BEZZOLA -- Sediment transport in a microscale braided stream: from grain size to reach scale P. MEUNIER and F. MÉTIVIER -- Morphological analysis and prediction of river bifurcations GUIDO ZOLEZZI, WALTER BERTOLDI and MARCO TUBINO -- Braided river management: from assessment of river behaviour to improved sustainable development HERVÉ PIÉGAY*, GORDON GRANT † , FUTOSHI NAKAMURA ‡ and NOEL TRUSTRUM -- Bank protection and river training along the braided Brahmaputra-Jamuna River, Bangladesh ERIK MOSSELMAN -- Morphological response of the Brahmaputra-Padma-Lower Meghna river system to the Assam earthquake of 1950 MAMINUL HAQUE SARKER* and COLIN R. THORNE †. , Use of remote-sensing with two-dimensional hydrodynamic models to assess impacts of hydro-operations on a large, braided, gravel-bed river: Waitaki River, New Zealand D. MURRAY HICKS*, U. SHANKAR*, M.J. DUNCAN*, M. REBUFFÉ † and J. ABERLE ‡ -- Effects of human impact on braided river morphology: examples from northern Italy NICOLA SURIAN -- Ecology of braided rivers KLEMENT TOCKNER*, ACHIM PAETZOLD* ,† , UTE KARAUS*, CÉCILE CLARET ‡ and JÜRG ZETTEL -- Riparian tree establishment on gravel bars: interactions between plant growth strategy and the physical environment ROBERT A. FRANCIS*, ANGELA M. GURNELL*, GEOFFREY E. PETTS † and PETER J. EDWARDS ‡ -- Index.
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  • 2
    Online Resource
    Online Resource
    The Rivers Handbook : Hydrological and Ecological Principles. (1994)
    Newark :John Wiley & Sons, Incorporated,
    Details
    Keywords: Rivers. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (539 pages)
    Edition: 1st ed.
    ISBN: 9781444313864
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=454388
    Language: English
    Note: The Rivers Handbook: Hydrological and Ecological Principles, Volume Two -- Contents -- List of Contributors -- Preface -- Abbreviations and Symbols -- Part 1: Perturbations and Biological Impacts -- 1: Rivers: Dynamic Components of Catchment Ecosystems -- 2: River Pollution -- 3: Hydrological Change -- 4: River Channel Change -- 5: System Recovery -- Part 2: Monitoring Programmes -- 6: Spatial and Temporal Problems with Monitoring -- 7: Water-Quality Monitoring -- 8: Biological Water-Quality Assessment of Rivers: Use of Macroinvertebrate Communities -- Part 3: Modelling: Forecasting and Prediction -- 9: Hydrology and Climate Change -- 10: Modelling Hydrological Processes for River Management -- 11: Water-Quality Modelling -- 12: Sediment Transport and Channel Stability -- 13: Prediction of Biological Responses -- 14: Evolution of Instream Flow Habitat Modelling -- Part 4: Management Options -- 15: Flow Allocation for In-river Needs -- 16: Control Rules for Regulating Reservoirs -- 17: Water-Quality Control -- 18: Environmentally Sensitive River Engineering -- 19: Management of Macrophytic Vegetation -- 20: Direct Control of Fauna: Role of Hatcheries, Fish Stocking and Fishing Regulations -- 21: Rehabilitation of River Margins -- 22: Restoration of River Corridors: German Experiences -- Part 5: Case Studies -- 23: Management of the Upper Mississippi: A Case History -- 24: River Management in Cold Regions: A Case Study of the River Laxá, North Iceland -- 25: Dryland Rivers: Their Ecology, Conservation and Management -- Index.
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  • 3
    Book
    Book
    Historical change of large alluvial rivers : Western Europe (1989)
    Chichester [u.a.] : Wiley
    Details Availability
    Keywords: Alluvial streams ; River channels ; Aufsatzsammlung ; Westeuropa ; Fluss ; Flussbett ; Strom ; Holozän ; Westeuropa ; Fluviale Sedimentation ; Schwemmland ; Ökologie ; Westeuropa ; Fluss ; Flussbett ; Strom ; Holozän ; Westeuropa ; Fluviale Sedimentation ; Schwemmland ; Ökologie
    Type of Medium: Book
    Pages: VIII, 355 S. , Ill.
    ISBN: 0471921637
    DDC: 551.48
    RVK:
    RN 10357
    Language: English
    Note: Literaturangaben
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  • 4
    Electronic Resource
    Electronic Resource
    Influence of water abstraction on the macroinvertebrate community gradient within a glacial stream system: La Borgne d'Arolla, Valais, Switzerland (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Freshwater biology 32 (1994), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: 1. Water abstraction from glacial rivers is an important characteristic of hydroelectric power schemes in Alpine regions. Streams in the Valais region of Switzerland have been particularly affected.2. Invertebrate distributions are described in La Borgne d'Arolla, a glacial stream with icemelt-, snowmelt- and groundwater-dominated tributaries. The icemelt-dominated streams have been affected by abstractions for more than 30 years.3. The glacial streams contain only Chironomidae (Diamesa), and are devoid of fauna for between 200 and 500 m below the glacier snouts.4. Immediately below the water intakes the streams are intermittent, flowing only during system purges and high floods, and are devoid of fauna for short distances (〈1.5km).5. Further downstream, abstraction of glacial meltwater increases the importance of snowmelt and groundwater, increasing water temperatures, improving water clarity and increasing the length of krenal/rhithral streams at the expense of kryal streams.6. A community including Chironomidae, Simuliidae, Baetidae, Nemouridae, Limnephilidae and Chloroperlidae occurs as soon as a permanent flow is maintained by tributary runoff, and the channel becomes stable.7. A wide range of taxa inhabit snowmelt- and groundwater-dominated tributary streams with stable channels, often at much higher altitudes than the main river. The tributaries provide sources for rapid colonization of the main channel following ice retreat or physical disturbance.8. Purges and high floods are important disturbances within the main channel. Recovery may be rapid because of drift from tributaries, but sites influenced by frequent disturbances have reduced faunas in comparison to stable channel sites.9. This study supports the model proposed by Milner & Petts (1994) and shows that deterministic responses of macroinvertebrate communities may be observed to changes of temperature, turbidity, flow regime and channel stability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2427.1994.tb01133.x
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  • 5
    Electronic Resource
    Electronic Resource
    Glacial rivers: physical habitat and ecology (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Freshwater biology 32 (1994), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: 1. This review examines the physical habitat and ecology of glacial rivers which have been relatively unstudied compared with rivers originating from other sources.2. Typical glacial rivers have summer temperatures below 10°C, a single seasonal peak in discharge, which in the Northern Hemisphere typically occurs in July, a diel fluctuation in flow which usually peaks in late afternoon, and turbidity levels in summer that exceed 30 NTU. These variables contrast with those in snowmelt/rainfall streams, particularly in summer, and make conditions more extreme for the biota.3. Where maximum temperatures are 〈inlineGraphic alt="leqslant R: less-than-or-eq, slant" extraInfo="nonStandardEntity" href="urn:x-wiley:00465070:FWB295:les" location="les.gif"/〉2°C benthic invertebrate communities are dominated by Diamcsa (Chironomidae). Downstream, temperatures increase, channels become more stable and valley floors become older. Orthocladiinae (Chironomidae), Simuliidae, Baetidae, Nemouridae and Chloroperlidae become characteristic members of the invertebrate community.4. Fauna may be displaced, or at least colonization delayed, by channel instability; the variable age structure of the valley floor will influence the faunal gradient, which may also be reset by the effects of tributaries, lakes and valley confinement.5. We propose a qualitative model that outlines zoobenthic community gradients determined by two principal variables, water temperature and channel stability, as a function of distance downstream, or time since deglaciation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2427.1994.tb01127.x
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  • 6
    Electronic Resource
    Electronic Resource
    Trends of macroinvertebrate community structure in glacier-fed rivers in relation to environmental conditions: a synthesis (2001)
    Oxford UK : Blackwell Science Ltd
    Freshwater biology 46 (2001), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: 1. Generalized additive models (GAMs) were used to predict macroinvertebrate taxonomic richness and individual taxon diversity at the reach level across seven European glacier-fed river sites from a set of 11 environmental variables. Maximum water temperature and channel stability were found to explain the most deviance in these models.2. Using this information, and data from other recent studies of glacier-fed rivers, a modified conceptual model based on Milner & Petts (1994) is presented which predicts the occurrence of macroinvertebrate families and subfamilies as determined by maximum water temperature (Tmax) and channel stability. This deterministic model only applies to the summer meltwater period when abiotic variables drive community structure.3. Where maximum water temperature is below 2 °C, Diamesinae chironomids are typically the sole inhabitants, but where Tmax 〉2 °C but 〈4 °C Orthocladiinae are found and, where channels are more stable, Tipulidae and Oligochaeta also occur. Above 4 °C Perlodidae, Taeniopterygidae, Baetidae, Simuliidae and Empididae can be expected to be part of the glacier-fed river community, particularly in Europe.4. At other times of the year when environmental conditions ameloriate, glacial rivers support higher macroinvertebrate abundance and diversity, with a number of taxa present that are not found during the summer melt period.5. Dispersal constraints influence macroinvertebrate assemblages of many glacier-fed rivers located on islands and in some alpine areas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2427.2001.00861.x
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  • 7
    Electronic Resource
    Electronic Resource
    A hydrogeomorphological context for ecological research on alpine glacial rivers (2001)
    Oxford UK : Blackwell Science Ltd
    Freshwater biology 46 (2001), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: 1. This paper presents a framework for the analysis of glacial stream ecosystems based upon the hierarchy of physical processes that operate over timescales varying from diel to millennial. Linked conceptual models propose interrelationships between climate, hydrology and fluvial geomorphology in alpine catchments.2. These conceptual models are illustrated using data from the Taillon/Gabiétous catchment, French Pyrénées. Secondary sources provide information concerning the long-term sequence of climatic and geomorphological controls on contemporary catchment processes. Detailed hydrogeomorphological field data collected over three consecutive summer melt seasons (1995–97) permit identification of marked changes in shorter-term (diel, seasonal and inter-annual) physical processes.3. Clear differences in the response of water quality and quantity variables were observed between years as climatic conditions varied. In two of the three study years, a precipitation-driven regime was imposed upon the typical ablation-driven river discharge pattern in alpine streams. Clear changes in water quality and quantity were evident with increasing distance from the glacier: (i) discharge increased although specific discharge decreased markedly, (ii) the mean and variability in water temperature increased, and (iii) base concentrations of suspended solids decreased.4. The physical processes incorporated in the conceptual models presented in this paper have ecological implications because they underpin a nested suite of disturbance regimes operating over timescales from diel to millennial.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2427.2001.00846.x
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  • 8
    Electronic Resource
    Electronic Resource
    A perspective on the abiotic processes sustaining the ecological integrity of running waters (2000)
    Springer
    Hydrobiologia 422-423 (2000), S. 15-27 
    Details
    ISSN: 1573-5117
    Keywords: fluvial hydrosystems ; flow regime ; channel form ; spatial scales
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Using selected examples of recent research, this paper illustrates the role of abiotic components within running-water ecosystems. The important role of temperature is acknowledged but the paper focuses on another key driver: physical stability, defined in relation to hydrological (frequency, duration and timing of inundation) and substratum parameters (channel dynamics, bedform and sediment size). The importance of this driver is illustrated by reference to four spatial scales. At the scale of the bedform, surface-water and groundwater interactions play an important role not least in driving energy exchanges and determining the temperature dynamics within the ecologically important surface layer of the bed sediments. At the reach scale, bedform development, channel form dynamics, and associated changing hydraulic conditions determine both benthic and riparian community patterns. At the catchment scale, new research has shown that the processes responsible for the formation of islands and divided channels play important roles in the functioning of fluvial hydrosystems. Finally, at the regional scale, the flow regime modified by the geomorphological history of the river over at least the past 16 000 years explains ecological patterns. The integration of hydro-geomorphological knowledge from all four scales of analysis is shown to be fundamental for understanding the ecological characteristics of running waters and for managing ecological integrity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1017062032685
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