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Benthic Macroinvertebrate Metacommunity Structure Of The Guadalupe River Basin Tx
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Book Synopsis Benthic Macroinvertebrate Metacommunity Structure of the Guadalupe River Basin, TX by : Rebecca A. Zawalski
Download or read book Benthic Macroinvertebrate Metacommunity Structure of the Guadalupe River Basin, TX written by Rebecca A. Zawalski and published by . This book was released on 2017 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Benthic macroinvertebrates (BMI) are widely used as bio-indicators for local in-stream quality. However, local community structure can be affected by smaller scale (local) environmental conditions and larger scale processes. I assessed the abundance and diversity of BMI and their relationship with local in-stream conditions, regional patterns of land-use/land cover (LULC), and large scale physiographic gradients across the Guadalupe River System, a large basin (3,256 km2) in Central Texas. Macroinvertebrates, water quality, and habitat conditions across 28 sites in the Guadalupe River and its main tributaries were sampled. Highest species diversity occurred near the headwaters, and decreased downstream. Pollution tolerance levels increased downstream and followed an increasing agriculture gradient. Landscape factors explained a large proportion of variation in macroinvertebrate community structure (38%), but 16% of it was spatially structured (shared with spatial factors latitude and longitude) and 4% was explained by spatial factors alone. Local environmental factors were strongly correlated with landscape factors and explained similar amount of variation as landscape factors. My study highlights the importance of incorporating physiographic gradients when examining local and regional diversity and composition of BMI communities, especially in large complex watersheds. My results will help develop more effective monitoring programs for larger river systems.
Book Synopsis Taxonomic Diversity, Assemblage Structure, and Biotic Integrety of Benthic Macroinvertebrates in the Guadalupe-San Marcos River System by : C. Lexi Smith
Download or read book Taxonomic Diversity, Assemblage Structure, and Biotic Integrety of Benthic Macroinvertebrates in the Guadalupe-San Marcos River System written by C. Lexi Smith and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Freshwater ecosystems are historically known to support a wide range of biodiversity at various trophic levels. However, the loss of freshwater biodiversity is related to trends in deteriorating water quality caused by anthropogenic disturbances that negatively impact bioindicator communities (e.g., benthic macroinvertebrates; BMI). I incorporated parameters of the Texas Commission of Environmental Quality (TCEQ) Rapid Bioassessment Protocols (RBP) to assess taxonomic diversity, assemblage structure, and biotic integrity of BMI in the Guadalupe – San Marcos River System (GSMR) in Texas. I sampled 25,512 BMI from 44 sites of the GSMR within various sampling methods, regions, habitats, and substrates. Taxonomic diversity and assemblage structure of BMI appeared to be homogenous across the river system regardless of sampling method, habitat, and substrate. However, regions suggested the San Marcos River of having the highest alpha diversity, lowest beta diversity, and greatest biotic integrity compared to the observed anthropogenic disturbance of the Guadalupe River overall. My study emphasizes the need for improved efforts towards large river management and conservation efforts of biotic communities by identifying the structural relationship of BMI assemblages in the GSMR. My results will help improve bioassessments and continuing research for BMI assemblages found within a large river system.
Book Synopsis The Effects of a Deep-storage Reservoir on the Benthic Macroinvertebrate Community of the Guadalupe River, Texas by : David Harbet Kent
Download or read book The Effects of a Deep-storage Reservoir on the Benthic Macroinvertebrate Community of the Guadalupe River, Texas written by David Harbet Kent and published by . This book was released on 1971 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of a Textile Mill Effluent and a Low Water Dam on Benthic Macroinvertebrate Community Structure of the Guadalupe River in Comal County, Texas by : Sondra A. Kane
Download or read book Effects of a Textile Mill Effluent and a Low Water Dam on Benthic Macroinvertebrate Community Structure of the Guadalupe River in Comal County, Texas written by Sondra A. Kane and published by . This book was released on 1995 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Habitat Suitability Criteria for Benthic Macroinvertebrates in the Lower Guadalupe River by : Kevin B. Mayes
Download or read book Development of Habitat Suitability Criteria for Benthic Macroinvertebrates in the Lower Guadalupe River written by Kevin B. Mayes and published by . This book was released on 2018 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Comparison of the Benthic Macroinvertebrate Community Structure of Two Oxbow Lakes in the Red River Basin in Northwest Louisiana by : Clarence Wayne Reed
Download or read book A Comparison of the Benthic Macroinvertebrate Community Structure of Two Oxbow Lakes in the Red River Basin in Northwest Louisiana written by Clarence Wayne Reed and published by . This book was released on 1981 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Benthic Macroinvertebrate Community Structure in Relation to Water Quality and Habitat in the Upper Pecos River, Texas by : Greg L. Larson
Download or read book Benthic Macroinvertebrate Community Structure in Relation to Water Quality and Habitat in the Upper Pecos River, Texas written by Greg L. Larson and published by . This book was released on 1996 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Deutsche Kunst Düsseldorf 1928, Mai - Okt by :
Download or read book Deutsche Kunst Düsseldorf 1928, Mai - Okt written by and published by . This book was released on 1928 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Benthic Macroinvertebrate Community Structure of Lake Houston, Texas by : James Glen Howard
Download or read book The Benthic Macroinvertebrate Community Structure of Lake Houston, Texas written by James Glen Howard and published by . This book was released on 1988 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Freshwater Biodiversity by : David Dudgeon
Download or read book Freshwater Biodiversity written by David Dudgeon and published by Cambridge University Press. This book was released on 2020-05-21 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growing human populations and higher demands for water impose increasing impacts and stresses upon freshwater biodiversity. Their combined effects have made these animals more endangered than their terrestrial and marine counterparts. Overuse and contamination of water, overexploitation and overfishing, introduction of alien species, and alteration of natural flow regimes have led to a 'great thinning' and declines in abundance of freshwater animals, a 'great shrinking' in body size with reductions in large species, and a 'great mixing' whereby the spread of introduced species has tended to homogenize previously dissimilar communities in different parts of the world. Climate change and warming temperatures will alter global water availability, and exacerbate the other threat factors. What conservation action is needed to halt or reverse these trends, and preserve freshwater biodiversity in a rapidly changing world? This book offers the tools and approaches that can be deployed to help conserve freshwater biodiversity.
Book Synopsis Water for the Environment by : Avril Horne
Download or read book Water for the Environment written by Avril Horne and published by Academic Press. This book was released on 2017-08-16 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water for the Environment: From Policy and Science to Implementation and Management provides a holistic view of environmental water management, offering clear links across disciplines that allow water managers to face mounting challenges. The book highlights current challenges and potential solutions, helping define the future direction for environmental water management. In addition, it includes a significant review of current literature and state of knowledge, providing a one-stop resource for environmental water managers. Presents a multidisciplinary approach that allows water managers to make connections across related disciplines, such as hydrology, ecology, law, and economics Links science to practice for environmental flow researchers and those that implement and manage environmental water on a daily basis Includes case studies to demonstrate key points and address implementation issues
Book Synopsis Multiple Stressors in River Ecosystems by : Sergi Sabater
Download or read book Multiple Stressors in River Ecosystems written by Sergi Sabater and published by Elsevier. This book was released on 2018-08-30 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multiple Stressors in River Ecosystems: Status, Impacts and Prospects for the Future provides a comprehensive and current overview on the topic as written by leading river scientists who discuss the relevance of co-occurring stressors for river ecosystems. River ecosystems are subject to multiple stressors that threaten their ecological status and the ecosystem services they provide. This book updates the reader’s knowledge on the response and management of river ecosystems to multi-stress situations occurring under global change. Detailing the risk for biodiversity and functioning in a case-study approach, it provides insight into methodological issues, also including the socioeconomic implications. Presents a case study approach and geographic description on the relevance of multiple stressors on river ecosystems in different biomes Gives a uniquely integrated perspective on different stressors, including their interactions and joint effects, as opposed to the traditional one-by-one approach Compiles state-of-the-art methods and technologies in monitoring, modeling and analyzing river ecosystems under multiple stress conditions
Book Synopsis Inland Fishes of California by : Peter B. Moyle
Download or read book Inland Fishes of California written by Peter B. Moyle and published by Univ of California Press. This book was released on 2002-05-21 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table of contents
Book Synopsis Cave Ecology by : Oana Teodora Moldovan
Download or read book Cave Ecology written by Oana Teodora Moldovan and published by Springer. This book was released on 2019-01-05 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cave organisms are the ‘monsters’ of the underground world and studying them invariably raises interesting questions about the ways evolution has equipped them to survive in permanent darkness and low-energy environments. Undertaking ecological studies in caves and other subterranean habitats is not only challenging because they are difficult to access, but also because the domain is so different from what we know from the surface, with no plants at the base of food chains and with a nearly constant microclimate year-round. The research presented here answers key questions such as how a constant environment can produce the enormous biodiversity seen below ground, what adaptations and peculiarities allow subterranean organisms to thrive, and how they are affected by the constraints of their environment. This book is divided into six main parts, which address: the habitats of cave animals; their complex diversity; the environmental factors that support that diversity; individual case studies of cave ecosystems; and of the conservation challenges they face; all of which culminate in proposals for future research directions. Given its breadth of coverage, it offers an essential reference guide for graduate students and established researchers alike.
Book Synopsis Instream Flows for Riverine Resource Stewardship by : Tom Annear
Download or read book Instream Flows for Riverine Resource Stewardship written by Tom Annear and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "[This book] presents the collective views and recommendations of the Instream Flow Council's (IFC) state and provincial fishery and wildlife agency members regarding appropriate instream flow strategies for managing, maintaining, or restoring riverine fishery and aquatic wildlife resources and processes. [It] also identif[ies] eight components that should serve as guidelines in establishing or improving existing agency instream flow programs and in developing prescriptions to be addressed in each instream flow assessment. These components include hydrology, geomorphology, biology, water quality, and connectivity as well as legal, institutional, and public involvement."--Page xxv.
Book Synopsis The Biology of Temporary Waters by : D. Dudley Williams
Download or read book The Biology of Temporary Waters written by D. Dudley Williams and published by Oxford University Press, USA. This book was released on 2006 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'The Biology of Temporary Waters' brings together diverse global literature on pure and applied aspects of temporary waters and their biotas. It examines their roles in both natural and human environments and seeks common evolutionary themes.
Book Synopsis Ecology of Desert Rivers by : Richard Kingsford
Download or read book Ecology of Desert Rivers written by Richard Kingsford and published by Cambridge University Press. This book was released on 2006-06 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarises current understanding of desert river ecology and its dependence on unpredictable river flows.
