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Longitudinal And Seasonal Changes In Macroinvertebrates And Epilithic Community Metabolism In Nonregulated And Regulated Waters Of The Clearwater River Idaho
Download Longitudinal And Seasonal Changes In Macroinvertebrates And Epilithic Community Metabolism In Nonregulated And Regulated Waters Of The Clearwater River Idaho full books in PDF, epub, and Kindle. Read online Longitudinal And Seasonal Changes In Macroinvertebrates And Epilithic Community Metabolism In Nonregulated And Regulated Waters Of The Clearwater River Idaho ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Longitudinal and Seasonal Changes in Macroinvertebrates and Epilithic Community Metabolism in Nonregulated and Regulated Waters of the Clearwater River, Idaho by : Mark D. Munn
Download or read book Longitudinal and Seasonal Changes in Macroinvertebrates and Epilithic Community Metabolism in Nonregulated and Regulated Waters of the Clearwater River, Idaho written by Mark D. Munn and published by . This book was released on 1986 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1987 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Index to American Doctoral Dissertations by :
Download or read book Index to American Doctoral Dissertations written by and published by . This book was released on 1986 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seasonal Changes in a Benthic Macroinvertebrate Community of a North Cascades Mountain Stream by : Amy Bruenderman Hill
Download or read book Seasonal Changes in a Benthic Macroinvertebrate Community of a North Cascades Mountain Stream written by Amy Bruenderman Hill and published by . This book was released on 1998 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Benthic Macroinvertebrate Community Composition and Distribution Related to Seasonal and Geochemical Changes in a Chronically Acidified Stream by : Darlene Marie Madarish
Download or read book Benthic Macroinvertebrate Community Composition and Distribution Related to Seasonal and Geochemical Changes in a Chronically Acidified Stream written by Darlene Marie Madarish and published by . This book was released on 1997 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluating the Impacts of Winter Drawdown on Macroinvertebrate Communities Within the Context of Localized Environmental Conditions by : Gabrielle Trottier
Download or read book Evaluating the Impacts of Winter Drawdown on Macroinvertebrate Communities Within the Context of Localized Environmental Conditions written by Gabrielle Trottier and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The regulation and management of lake water levels have become a major form of anthropogenic disturbance in temperate and boreal aquatic ecosystems. Drawing the water level down as the winter season progresses can lead to substantial exposure of the littoral zone, rendering it susceptible to desiccation and freezing. Such changes in the hydrological regime of littoral zones can have significant effects on aquatic biota, including macroinvertebrates. These organisms are widely considered as robust bioindicators, but it is also well known that their abundance and distribution is characterized by substantial patchiness. Often, scientists who use macroinvertebrates as bioindicators, focus their sampling on a single habitat type (e.g., stony littoral) to reduce the heterogeneity in macroinvertebrate distributions. However, applying such an approach in the context of an environmental stressor makes it difficult to draw general conclusions about the impact of a potential stressor on the entire littoral zone. Recently, a debate has emerged in the literature over the effects of water level drawdown on macroinvertebrate communities and we think that at least part of this debate may be due to different sampling strategies employed across studies to examine the effects of drawdown on macroinvertebrate communities. In order to evaluate how nearshore macroinvertebrate communities, from a variety of habitats, are affected by drawdown, we sampled 15 reservoirs and quantified macroinvertebrate abundance and composition. To these data, we applied a combination of (generalized) linear mixed effects models and multivariate analyses to answer the following question; what are the effects of drawdown on macroinvertebrate abundance and community composition? To address this question and incorporate the possible effects of heterogeneity in abundance and distribution of macroinvertebrates, we explicitly considered multiple physical environmental variables as additional predictors of macroinvertebrate abundance and community composition. We found that drawdown and thermal regime were significant predictors of macroinvertebrate abundance, but explained negligible amounts of variation in the community composition. Overall, these findings help elucidate how macroinvertebrate communities respond to winter drawdown and strengthen the knowledge on how localized environmental conditions influence macroinvertebrates. Furthermore we think that our sampling and analytical approach provides a useful template for other scientists to adopt when quantifying the effect of a potential stressor on nearshore macroinvertebrate communities." --
Book Synopsis Longitudinal Changes in the Macroinvertebrate Community in an Appalachian Stream Receiving Alkaline Drainage by : Eddie W. Hosey
Download or read book Longitudinal Changes in the Macroinvertebrate Community in an Appalachian Stream Receiving Alkaline Drainage written by Eddie W. Hosey and published by . This book was released on 1993 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Comparison of Seasonal Changes in Water Quality and Macroinvertebrate Abundance Between Artificial and Natural Wetlands by : Siripong Pornpipat
Download or read book A Comparison of Seasonal Changes in Water Quality and Macroinvertebrate Abundance Between Artificial and Natural Wetlands written by Siripong Pornpipat and published by . This book was released on 1992 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relationships Between Ecosystem Metabolism, Benthic Macroinvertebrate Densities, and Environmental Variables in a Sub-Arctic Alaskan River by : Emily R. Benson
Download or read book Relationships Between Ecosystem Metabolism, Benthic Macroinvertebrate Densities, and Environmental Variables in a Sub-Arctic Alaskan River written by Emily R. Benson and published by . This book was released on 2010 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The aim of this study was to investigate the environmental drivers of river ecosystem metabolism and macroinvertebrate density in a sub-arctic river. Ecosystem metabolism is the combination of gross primary production and ecosystem respiration within a river. Aquatic macroinvertebrates link primary producers at the base of the food web with secondary consumers. The extent to which photosynthetically active radiation, discharge, and nutrients influence metabolism rates and how primary production and river discharge rates influence benthic macroinvertebrate densities in sub-arctic rivers is not clear. These processes ultimately help regulate prey resources available for upper level consumers such as juvenile salmon. I employed Random Forests model analyses to identify important predictor variables for primary production and respiration rates (estimated using the single-station diel oxygen method) at four sites in the Chena River, sub-arctic Alaska, throughout the summers of 2008 and 2009. I calculated Spearman correlations between nutrient levels and metabolism rates. I used Random Forests models to identify the variables important for predicting benthic macroinvertebrate density and biomass at the study sites. The models indicated that discharge and length of time between high water events were the most important variables measured for predicting metabolism rates. Discharge was identified as the most important variable for predicting benthic macroinvertebrate density and biomass. Phosphorus concentration was low (at times below the detection limit), while nitrogen concentration was more variable; the ratio of nitrogen to phosphorus was above the threshold for phosphorus limitation, suggesting that phosphorus may have been limiting primary production"--Leaf iii.
Book Synopsis Impacts of Water Level Regulation on Macroinvertebrate Communities in the Littoral Zone of Lakes by : Daniel Clayton McEwen
Download or read book Impacts of Water Level Regulation on Macroinvertebrate Communities in the Littoral Zone of Lakes written by Daniel Clayton McEwen and published by . This book was released on 2008 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seasonality of Benthic Macroinvertebrates and Water Quality Indices of Two Streams in Allegany County, New York by : Brian Stockwell
Download or read book Seasonality of Benthic Macroinvertebrates and Water Quality Indices of Two Streams in Allegany County, New York written by Brian Stockwell and published by . This book was released on 1996 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluating Aquatic Macroinvertebrate Community Changes Resulting from Terrestrial Revegetation by : Todd Hubbard
Download or read book Evaluating Aquatic Macroinvertebrate Community Changes Resulting from Terrestrial Revegetation written by Todd Hubbard and published by . This book was released on 2000 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seasonality of Benthic Macroinvertebrates and Water Quality of Houghton and Crawford Creeks, Allegany County, New York by : Philip Niemi
Download or read book Seasonality of Benthic Macroinvertebrates and Water Quality of Houghton and Crawford Creeks, Allegany County, New York written by Philip Niemi and published by . This book was released on 1997 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seasonal Changes of Benthic Macroinvertebrate Communities in Southwestern British Columbia by :
Download or read book Seasonal Changes of Benthic Macroinvertebrate Communities in Southwestern British Columbia written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abundance patterns in the small coastal and interior streams were related to the timing of invertebrate life cycles whereas abundance was related to life cycles and the spring freshet in the large rivers. [...] Coefficients of variation were determined for the ordinations of the genus/species, family, and functional data and for the ordination of the environmental variables, that change seasonally. [...] The discharge level achieved and the duration depends on the depth of the snow pack and the speed of melting. [...] The extreme temperatures in the interior increase the rate of weathering of the sedimentary rocks and result in hardwater streams with high alkalinity, high conductivity, and a slightly basic pH (Table 2.1). [...] The Fraser and the Thompson have an intermediate alkalinity, and a conductivity and pH similar to the interior streams (Table 2.1).
Book Synopsis Macroinvertebrate Community Structure and Function in Seasonal, Low-land, Tropical Streams Across a Pristine-rural-Urban Land-use Gradient by : Julie Elizabeth Helson
Download or read book Macroinvertebrate Community Structure and Function in Seasonal, Low-land, Tropical Streams Across a Pristine-rural-Urban Land-use Gradient written by Julie Elizabeth Helson and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Probable Impacts of Varying Discharges on Aquatic Macroinvertebrates Communities by : S. Mark Nelson
Download or read book Probable Impacts of Varying Discharges on Aquatic Macroinvertebrates Communities written by S. Mark Nelson and published by . This book was released on 1996 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydroecology and Ecohydrology by : Paul J. Wood
Download or read book Hydroecology and Ecohydrology written by Paul J. Wood and published by John Wiley & Sons. This book was released on 2008-02-28 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: This state-of-the-art, research level text considers the growing volume of research at the interface of hydrology and ecology and focuses on: the evolution of hydroecology / ecohydrology process understanding hydroecological interactions, dynamics and linkages methodological approaches detailed case studies future research needs The editors and contributors are internationally recognised experts in hydrology and ecology from institutions across North America, South America, Australia, and Europe. Chapters provide a broad geographical coverage and bridge the traditional subject divide between hydrology and ecology. The book considers a range of organisms (plants, invertebrates and fish), provides a long-term perspective on contemporary and palaeo-systems, and emphasises wider research implications with respect to environmental and water resource management. Hydroecology and Ecohydrology is an indispensable resource for academics and postgraduate researchers in departments of physical geography, earth sciences, environmental science, environmental management, civil engineering, water resource management, biology, zoology, botany and ecology. It is also of interest to professionals working within environmental consultancies, organizations and national agencies.
