Braided River Ecology
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Braided River Ecology
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Author : Duncan Peter Gray
language : en
Publisher: Science & Technical Publishing Department of Conservation
Release Date : 2007
Braided River Ecology written by Duncan Peter Gray and has been published by Science & Technical Publishing Department of Conservation this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Braided river ecology categories.
A braided river is one that, over some part of its length, flows in multiple, mobile channels across a gravel floodplain. In New Zealand, many braided rivers remain in a relatively unmodified condition, but increasing demands for hydro-electricity generation, irrigation, gravel extraction and flood protection works are placing pressure on these systems. However, apart from a limited number of studies on the ecology of individual species or reaches, there has been little coordinated ecological research to assess the overall values and function of braided river ecosystems in New Zealand. This review summarises the international and New Zealand literature on braided rivers, with particular emphasis on benthic invertebrate ecology. Braided rivers typically experience short-term channel migration within the active bed and greater lateral channel migration across the entire floodplain in the longer term. Channel migration occurs because steep headwater tributaries supply highly variable discharges and mobile erodable substrates to the mainstem. Braided rivers typically possess extended floodplains, which may contain a mosaic of floodplain habitats ranging from highly unstable main-stem channels to stable spring complexes. Main channel aquatic invertebrate communities are frequently low in diversity and dominated by the leptophlebiid mayfly Deleatidium spp., but also chironomids and elmid beetles. In contrast, floodplain springs can have highly diverse communities rich in amphipods, mayflies, caddis, snails and chironomids. Groundwater and floodplain pond habitats also occur frequently and can contain several specialist taxa. Braided rivers and their floodplains are spatially complex, temporally dynamic habitats with high landscape- and reach-scale biodiversity values. The challenge facing managers is to protect this biodiversity within the context of increasing human demands on the rivers. This report highlights the particular threats and management issues associated with braided rivers in New Zealand and identifies areas where future research is required.
Braided Rivers
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Author : Gregory H. Sambrook Smith
language : en
Publisher: John Wiley & Sons
Release Date : 2009-03-05
Braided Rivers written by Gregory H. Sambrook Smith and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-03-05 with Science categories.
This important book brings together eighteen cutting-edge researchpapers first presented at the Second International Conference onBraided Rivers. It includes the latest research on the dynamics,deposits and ecology of these rivers. Essential reading for geomorphologists, earth scientists,engineers and ecologists with a pure and applied interest in thestudy, modelling and management of braided rivers.
River Life
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Author : New Zealand. Department of Conservation. Canterbury Conservancy
language : en
Publisher:
Release Date : 2009
River Life written by New Zealand. Department of Conservation. Canterbury Conservancy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Braided rivers categories.
Braided Rivers
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Author : Duncan Gray
language : en
Publisher:
Release Date : 2018
Braided Rivers written by Duncan Gray and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Braided rivers categories.
Spatial Variation In Invertebrate Communities In New Zealand Braided Rivers
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Author : Duncan Peter Gray
language : en
Publisher:
Release Date : 2010
Spatial Variation In Invertebrate Communities In New Zealand Braided Rivers written by Duncan Peter Gray and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Animal diversity categories.
Large braided rivers are a distinctive feature of the landscape in several regions of New Zealand. The invertebrate communities of braided rivers have been described as taxonomically depauperate, but recent research has suggested otherwise. We conducted a field survey of 11 braided rivers, collecting benthic invertebrates from six reaches dispersed down each river, and sampling up to five habitats per reach. We compared the taxonomic richness of these braided, multichannel rivers with non-braided, single channel rivers, and found that braided rivers actually support very diverse invertebrate assemblages when all floodplain habitats are included in analyses. We then compared biodiversity patterns within braided rivers. A total of 144 taxa and over 100 000 individuals were collected from the 11 braided rivers. Thirty-four percent of taxa were found in
Natural Character Assessment Guidelines For Braided Rivers
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Author : Duncan Peter Gray
language : en
Publisher:
Release Date : 2018
Natural Character Assessment Guidelines For Braided Rivers written by Duncan Peter Gray and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Braided rivers categories.
Braided Rivers
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Author : J. L. Best
language : en
Publisher: Geological Society Publishing House
Release Date : 1993
Braided Rivers written by J. L. Best and has been published by Geological Society Publishing House this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Alluvial streams categories.
Rivers Physical Fluvial And Environmental Processes
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Author : Paweł Rowiński
language : en
Publisher: Springer
Release Date : 2015-07-02
Rivers Physical Fluvial And Environmental Processes written by Paweł Rowiński and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-07-02 with Science categories.
This book describes the domain of research and investigation of physical, chemical and biological attributes of flowing water, and it deals with a cross-disciplinary field of study combining physical, geophysical, hydraulic, technological, environmental interests. It aims to equip engineers, geophysicists, managers working in water-related arenas as well as advanced students and researchers with the most up to date information available on the state of knowledge about rivers, particularly their physical, fluvial and environmental processes. Information from various but also interrelated areas available in one volume is the main benefit for potential readers. All chapters are prepared by leading experts from the leading research laboratories from all over the world.
Methods In Stream Ecology
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Author : F. Richard Hauer
language : en
Publisher: Academic Press
Release Date : 2011-04-27
Methods In Stream Ecology written by F. Richard Hauer and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-04-27 with Science categories.
Methods in Stream Ecology, Second Edition, provides a complete series of field and laboratory protocols in stream ecology that are ideal for teaching or conducting research. This updated edition reflects recent advances in the technology associated with ecological assessment of streams, including remote sensing. In addition, the relationship between stream flow and alluviation has been added, and a new chapter on riparian zones is also included. The book features exercises in each chapter; detailed instructions, illustrations, formulae, and data sheets for in-field research for students; and taxanomic keys to common stream invertebrates and algae. With a student-friendly price, this book is key for all students and researchers in stream and freshwater ecology, freshwater biology, marine ecology, and river ecology. This text is also supportive as a supplementary text for courses in watershed ecology/science, hydrology, fluvial geomorphology, and landscape ecology. Exercises in each chapter Detailed instructions, illustrations, formulae, and data sheets for in-field research for students Taxanomic keys to common stream invertebrates and algae Link from Chapter 22: FISH COMMUNITY COMPOSITION to an interactive program for assessing and modeling fish numbers
River Confluences Tributaries And The Fluvial Network
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Author : Stephen Rice
language : en
Publisher: John Wiley & Sons
Release Date : 2008-07-31
River Confluences Tributaries And The Fluvial Network written by Stephen Rice and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-07-31 with Science categories.
River Confluences and the Fluvial Network brings together state of the art thinking on confluence dynamics tributary impacts and the links between processes at these scales and river network functions. The book is unique in focus, content, scope and in bringing together engineering, ecological and geomorphological approaches to the three key areas of river system science. Taking a global approach this multi-authored text features a team of carefully selected, internationally renowned, experts who have all contributed significantly to recent ground breaking advancements in the field. Each chapter includes a comprehensive review of work to date highlighting recent discoveries and the main thrust of knowledge, previously unpublished research and case studies, challenges and questions, detailed references as well as a forward looking assessment of the state of the science.