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Bioassessment And The Partitioning Of Community Composition And Diversity Across Spatial Scales In Wetlands Of The Bonneville Basin
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Book Synopsis Bioassessment and the Partitioning of Community Composition and Diversity Across Spatial Scales in Wetlands of the Bonneville Basin by : Mary Jane Keleher
Download or read book Bioassessment and the Partitioning of Community Composition and Diversity Across Spatial Scales in Wetlands of the Bonneville Basin written by Mary Jane Keleher and published by . This book was released on 2007 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: One problem facing appropriate management is the lack of biological information for determining which wetlands should receive protection priorities based on the presence of viable, functioning characteristics.
Book Synopsis Wetland Habitats of North America by : Dr. Darold P. Batzer
Download or read book Wetland Habitats of North America written by Dr. Darold P. Batzer and published by Univ of California Press. This book was released on 2012-05-22 with total page 1407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wetlands are prominent landscapes throughout North America. The general characteristics of wetlands are controversial, thus there has not been a systematic assessment of different types of wetlands in different parts of North America, or a compendium of the threats to their conservation. Wetland Habitats of North America adopts a geographic and habitat approach, in which experts familiar with wetlands from across North America provide analyses and syntheses of their particular region of study. Addressing a broad audience of students, scientists, engineers, environmental managers, and policy makers, this book reviews recent, scientifically rigorous literature directly relevant to understanding, managing, protecting, and restoring wetland ecosystems of North America.
Book Synopsis Biodiversity in Wetlands by : Brij Gopal
Download or read book Biodiversity in Wetlands written by Brij Gopal and published by . This book was released on 2000 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hierarchical Spatial Structuring of Stream Insect Diversity Through DNA Barcoding by : Trevor Bringloe
Download or read book Hierarchical Spatial Structuring of Stream Insect Diversity Through DNA Barcoding written by Trevor Bringloe and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beta-diversity Patterns and Community Assembly Across Latitudes by : Emma Rose Moran
Download or read book Beta-diversity Patterns and Community Assembly Across Latitudes written by Emma Rose Moran and published by . This book was released on 2017 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: A major goal of community ecology is in understanding variation in community composition, generally termed [beta]-diversity. This variation can result from a variety of mechanisms, including deterministic factors, wherein species sort along biotic or abiotic gradients; stochastic processes, whereby random fluctuations in population sizes cause variation in community composition; and/or dispersal limitation. Although all of these processes are likely occurring in all biological communities, a key question in community ecology research is if their relative importance may vary systematically across environmental or biogeographic gradients.In this dissertation, we combine both observational and experimental research to investigate [beta]-diversity across a biogeographic gradient of longstanding interest in ecology and evolutionary biology, the latitudinal gradient. Diversity at the local and/or regional scale has long been known to decrease with latitude, but only relatively recently have similar trends been shown for [beta]-diversity as well. Although this may suggest that community assembly processes that generate [beta]-diversity may also be varying with latitude, [beta]-diversity metrics are numerically dependent to varying degrees on different aspects of regional and local diversity. Therefore, any trends in [beta]-diversity with latitude could simply be reflecting the well-documented trends in local and/or regional diversity, generally referred to as sampling effects. Throughout this dissertation, therefore, we employ a relatively uncommon [beta]-diversity metric, heretofore termed [beta]-pie, that is relatively insensitive to sampling effort (the number of individuals sampled locally) and to the shape of the regional species abundance distribution, which we believe will improve the assessment of how and why community composition may vary in space and time. In Chapter 2, we apply this metric to zooplankton communities sampled across ten latitudes in North America and three years to determine if, after accounting for the aforementioned sampling effects, there are any general trends of spatial and/or temporal turnover with latitude. Although we recovered a significant relationship between spatial [beta]-pie and latitude in two years, these trends actually reversed from one year to the next, and there was no significant relationship in the third year. Unlike other studies documenting temporal turnover as a function of latitude, we found no relationship between temporal [beta]-pie and latitude. These results together suggest that systematic variation in[beta]-diversity along local and/or regional diversity gradients (such as with latitude) may simply be reflecting numerical sampling effects instead of systematic variation in community assembly processes. Chapters 3 and 4 report the results of large-scale outdoor mesocosm experiments replicated at three latitudes in North America. By using mesocosms, we attempted to limit abiotic heterogeneity and historical differences, but allow for natural variation in regional species pools to affect community assembly. Chapter 3 specifically focuses on the role of an environmental filter, drought, and asks how it affects within-site aggregation, as well as whether its effect on [beta]-pie varies consistently with latitude. Interestingly, we found that[beta]-pie could either increase or decrease after the drought treatment, and although we did find regional differences in its effect, these did not vary systematically with latitude. In addition, it appears that variation in [beta]-pie was not due to changes in local diversity ([alpha]-pie) but largely caused by changes in the regional species abundance distribution ([gamma]-pie).Chapter 4 focused on how dispersal at different stages of assembly affects [beta]-pie. Because we did not intentionally impose abiotic heterogeneity, this experiment focused on the interaction between dispersal, stochasticity, and species interactions in generating intraspecific aggregation during community assembly. The two dispersal treatments occurred at different stages of assembly -- 1) during the initial establishment of communities, when population sizes are relatively small and demographic stochasticity might generate high variation in initial colonists, and 2) two years after communities have assembled, when population sizes are much larger and species have a greater potential to deterministically interact. Like the drought treatment, we found variable effects of dispersal on [beta]-pie. The early dispersal treatments (high versus low) were found to increase, decrease, or have no effect on aggregation, and there was no general trend with latitude. The late dispersal treatment effects did show some interesting trends for passive dispersers, however, wherein the high dispersal treatment actually increased [beta]-pie relative to the controls. In addition, this effect tended to decrease with latitude, suggesting that perhaps dispersal limitation plays a greater role in community assembly with decreasing latitude.
Book Synopsis Relationships Between Upstream Land Use at Multiple Spatial Scales and Benthic Macroinvertebrate Community Composition in the Deerfield River Watershed of Vermont and Massachusetts by : Jason Saltman
Download or read book Relationships Between Upstream Land Use at Multiple Spatial Scales and Benthic Macroinvertebrate Community Composition in the Deerfield River Watershed of Vermont and Massachusetts written by Jason Saltman and published by . This book was released on 2009 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, I examined relationships between land-use patterns and macroinvertebrate communities in 45 first through fourth-order stream reaches in four subwatersheds within a New England watershed. Land-use patterns were quantified in GIS at three spatial scales to determine the effect of scale on the strength of relationships between instream biological conditions and adjacent land-use conditions. A GIS was used to quantify forest, agricultural, and developed land use at three spatial scales, including the entire upstream catchment area and two sub-corridors. Macroinvertebrate communities were analyzed using a multimetric approach and a multivariate approach to relate community composition to land-use variables measured at each spatial scale. Among community metrics, richness, EPT richness, percent affinity, and total metric scores were significantly correlated with quantified land-use variables, including percent forest, percent agriculture, percent developed, and percent agriculture + developed at the upstream catchment scale. Land-use variables also showed significant correlations with community composition as indicated by ordination axes resulting from multivariate analysis. Results of the approaches were in general agreement with each other, each indicating that relationships between instream benthic conditions and adjacent land use were strongest at the entire-upstream-catchment scale. These results suggest that conditions and processes occurring at this scale appear to be more influential than are localized adjacent land-use conditions in shaping community composition and in-stream biological conditions.
Book Synopsis Nutrient Criteria Technical Guidance Manual by :
Download or read book Nutrient Criteria Technical Guidance Manual written by and published by . This book was released on 2000 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stream Corridor Restoration written by and published by National Technical Info Svc. This book was released on 1998 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document is a cooperative effort among fifteen Federal agencies and partners to produce a common reference on stream corridor restoration. It responds to a growing national and international interest in restoring stream corridors.
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 High Mountain Conservation in a Changing World by : Jordi Catalan
Download or read book High Mountain Conservation in a Changing World written by Jordi Catalan and published by Springer. This book was released on 2017-08-03 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides case studies and general views of the main processes involved in the ecosystem shifts occurring in the high mountains and analyses the implications for nature conservation. Case studies from the Pyrenees are preponderant, with a comprehensive set of mountain ranges surrounded by highly populated lowland areas also being considered. The introductory and closing chapters will summarise the main challenges that nature conservation may face in mountain areas under the environmental shifting conditions. Further chapters put forward approaches from environmental geography, functional ecology, biogeography, and paleoenvironmental reconstructions. Organisms from microbes to large carnivores, and ecosystems from lakes to forest will be considered. This interdisciplinary book will appeal to researchers in mountain ecosystems, students and nature professionals. This book is open access under a CC BY license.
Book Synopsis Groundwater-Surface Water Interactions by : Habil. Jörg Lewandowski
Download or read book Groundwater-Surface Water Interactions written by Habil. Jörg Lewandowski and published by MDPI. This book was released on 2020-12-10 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have seen a paradigm shift in our understanding of groundwater–surface water interactions: surface water and aquifers were long considered discrete, separate entities; they are now understood as integral components of a surface–subsurface continuum. This book provides an overview of current research advances and innovative approaches in groundwater–surface water interactions. The 20 research articles and 1 communication cover a wide range of thematic scopes, scales, and experimental and modelling methods across different disciplines (hydrology, aquatic ecology, biogeochemistry, and environmental pollution). The book identifies current knowledge gaps and reveals the challenges in establishing standardized measurement, observation, and assessment approaches. It includes current hot topcis with environmental and societal relevance such as eutrophication, retention of legacy, and emerging pollutants (e.g., pharmaceuticals and microplastics), urban water interfaces, and climate change impacts. The book demonstrates the relevance of processes at groundwater–surface water interfaces for (1) regional water balances and (2) quality and quantity of drinking water resources. As such, this book represents the long-awaited transfer of the above-mentioned paradigm shift in understanding of groundwater–surface water interactions from science to practice.
Book Synopsis Ecology and Classification of North American Freshwater Invertebrates by : James H. Thorp
Download or read book Ecology and Classification of North American Freshwater Invertebrates written by James H. Thorp and published by Academic Press. This book was released on 2010 with total page 1036 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The third edition of Ecology and Classification of North American Freshwater Invertebrates continues the tradition of in-depth coverage of the biology, ecology, phylogeny, and identification of freshwater invertebrates from the USA and Canada. This text serves as an authoritative single source for a broad coverage of the anatomy, physiology, ecology, and phylogeny of all major groups of invertebrates in inland waters of North America, north of Mexico." --Book Jacket.
Author :Food and Agriculture Organization of the United Nations Publisher :Food & Agriculture Org. ISBN 13 :9789251046944 Total Pages :180 pages Book Rating :4.0/5 (469 download)
Book Synopsis Dams, Fish and Fisheries by : Food and Agriculture Organization of the United Nations
Download or read book Dams, Fish and Fisheries written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2001 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of free longitudinal passage of river fauna is stressed.
Book Synopsis The Ecology of Eelgrass Meadows in the Pacific Northwest by : Ronald C. Phillips
Download or read book The Ecology of Eelgrass Meadows in the Pacific Northwest written by Ronald C. Phillips and published by . This book was released on 1985 with total page 104 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.
Book Synopsis Inventory and Monitoring of Wildlife Habitat by : Allen Y. Cooperrider
Download or read book Inventory and Monitoring of Wildlife Habitat written by Allen Y. Cooperrider and published by . This book was released on 1986 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Model Selection and Multimodel Inference by : Kenneth P. Burnham
Download or read book Model Selection and Multimodel Inference written by Kenneth P. Burnham and published by Springer Science & Business Media. This book was released on 2007-05-28 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: A unique and comprehensive text on the philosophy of model-based data analysis and strategy for the analysis of empirical data. The book introduces information theoretic approaches and focuses critical attention on a priori modeling and the selection of a good approximating model that best represents the inference supported by the data. It contains several new approaches to estimating model selection uncertainty and incorporating selection uncertainty into estimates of precision. An array of examples is given to illustrate various technical issues. The text has been written for biologists and statisticians using models for making inferences from empirical data.