Download or read book Halophyte Responses to Soil Variation and Interspecific Competition in Southern California Salt Marshes written by Arja T. McCray and published by . This book was released on 2001 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Explorations written by and published by . This book was released on 2001 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contributions Scripps Institution of Oceanography written by Scripps Institution of Oceanography and published by . This book was released on 2000 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contributions from the Scripps Institution of Oceanography written by Scripps Institution of Oceanography and published by . This book was released on 2001 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reprints from various publications.
Download or read book Contribution from the Scripps Institution of Oceanography written by and published by . This book was released on 2002 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reprints from various publications
Download or read book The Ecology of Southern California Coastal Salt Marshes written by Joy B. Zedler and published by . This book was released on 1982 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Variation in Response to a Continuum of Stress and Disturbance in a Salt Marsh Plant Assemblage written by Stuart Keating Allison and published by . This book was released on 1991 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2002 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecosystem Ecology written by Sven Erik Jørgensen and published by Academic Press. This book was released on 2009-07-25 with total page 537 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jorgensen's Ecosystem Ecology provides a thorough and comprehensive overview of the world’s aquatic and terrestrial ecosystems. This derivative volume based on the best-selling Encyclopedia of Ecology (published 2008) is the only book currently published that provides an overview of the world’s ecosystems in a concise format. Provides an overview of the world’s ecosystems in a concise format Covers aquatic and terrestrial ecosystems Based on the best-selling Encyclopedia of Ecology Full-color figures and tables support the text and aid in understanding
Download or read book Functional Diversity and Composition of Microalgae and Photosynthetic Bacteria in Marine Wetlands written by Christopher Nathan Janousek and published by . This book was released on 2005 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Factors Controlling the Vegetation Dynamics of Spartina Foliosa and Salicornia Virginica in California s Coastal Wetlands written by Joan Lee Brenchley-Jackson and published by . This book was released on 1992 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 2001 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inter and Intraspecific Variation in Carbon and Nutrient Pools of Salt Marsh Plants written by Tracy Elsey-Quirk and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examined both inter- and intraspecific variation of four dominant salt marsh macrophytes, a high marsh shrub, Baccharis halimifolia, a high marsh rush, Juncus roemerianus, a mid-marsh grass, Spartina patens, and the low marsh grass that is ubiquitous in wetlands along the Atlantic and Gulf coasts of the United States, short-form S. alterniflora. Chapter One evaluates the seasonal C pool dynamics of the four species including the seasonal allocation of above- and belowground C pools, C pool loss through decomposition, and soil C concentration in a wetland fringing Little Assawoman Bay, one of Delaware's Coastal Bays. To determine whether the rate of vertical accretion and organic matter accumulation differed between the low, S. alterniflora and high, J. roemerianus zones, soil cores from the two zones were used to measure 137 Cs and 210 Pb activity. Total plant C pools of the mid- and low marsh grass species, Spartina patens (4360 g C m -2) and Spartina alterniflora (4197 g C m -2), were similar and almost two and three times larger than total pools of Juncus roemerianus (2508 g C m -2) and Baccharis halimifolia (1490 g C m -2), respectively. Moving from the high to low marsh zones, the C pool shifted from primarily aboveground to belowground. Baccharis had the greatest aboveground C storage (1140 g m -2) and the slowest rate of C loss. Chapter Two examines interspecific variation in N pool dynamics in the four species including seasonal allocation of N pools above- and belowground, N loss through decomposition, N resorption efficiency, and soil N concentration. The seasonal fluctuation in the total N pools of the herbaceous species was due to belowground N pool dynamics, particularly fine root and dead large and small-sized macroorganic matter fluxes. Comparisons among the species revealed that the location, magnitude and timing of N storage and dispersal differed, which is important in the context of how species will shift in response to environmental change. Chapter Three describes the above- and belowground species associations in the fringing wetland and whether or not species shifts have occurred. Accurate productivity measurements in fringing wetlands may be dependent on species-specific organic matter separation, particularly belowground. Vegetation change in salt marshes may also become apparent when comparing above- and belowground species-specific live and dead organic matter. We surveyed species richness, frequency, and percent cover and measured above- and belowground biomass in three vegetation zones. Our study illustrates the importance of species-specific belowground biomass estimates to provide evidence of species shifts in both the low and high marsh zones. Chapter four examines intraspecific variation in morphological characteristics and carbon, nutrient, and mineral concentration and allocation within B. halimifolia, J. roemerianus, S. patens, and S. alterniflora. Ecotypic variation in morphology and composition and allocation of C, nutrients, and minerals in wetland plants may influence ecosystem functions such as the deposition and trapping of sediments, detritus production, secondary productivity, the cycling and storage of organic and inorganic nutrients, belowground organic matter production, and long-term C storage. We examined the expression of morphological traits and C, nutrient, and mineral composition and allocation among southern ecotypes, a tissue-culture regenerant, and a native mid-Atlantic ecotype for each of four salt marsh species after two growing seasons within natural stands in a mid-Atlantic salt marsh. Overall, we found that the expression of phenotypic variation was greatest in the low marsh, Spartina alterniflora than in the higher marsh species likely due to both the greater spatial variation in elevation and soil conditions in the higher marsh and potentially a lower tolerance of higher marsh species to environmental stress. The differences that we found among ecotypes have important implications for enhancing and developing ecosystem processes in restoration and creation projects. Chapter Five characterizes carbon pool dynamics of the salt marsh species, J. roemerianus, S. patens, and S. alterniflora using a STELLA model. The model was developed to examine the relationships between C pools and fluxes within species, to simultaneously compare the timing and magnitude of seasonal fluxes of C of each of the three species within a square meter, and to examine how changes to model parameters influence C pool dynamics and the accumulation of C belowground. (Abstract shortened by UMI.).
Download or read book Encyclopedia of Ecology written by Brian D. Fath and published by Elsevier. This book was released on 2018-08-23 with total page 2786 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of Ecology, Second Edition, Four Volume Set continues the acclaimed work of the previous edition published in 2008. It covers all scales of biological organization, from organisms, to populations, to communities and ecosystems. Laboratory, field, simulation modelling, and theoretical approaches are presented to show how living systems sustain structure and function in space and time. New areas of focus include micro- and macro scales, molecular and genetic ecology, and global ecology (e.g., climate change, earth transformations, ecosystem services, and the food-water-energy nexus) are included. In addition, new, international experts in ecology contribute on a variety of topics. Offers the most broad-ranging and comprehensive resource available in the field of ecology Provides foundational content and suggests further reading Incorporates the expertise of over 500 outstanding investigators in the field of ecology, including top young scientists with both research and teaching experience Includes multimedia resources, such as an Interactive Map Viewer and links to a CSDMS (Community Surface Dynamics Modeling System), an open-source platform for modelers to share and link models dealing with earth system processes
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1991-04 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concepts and Controversies in Tidal Marsh Ecology written by M.P. Weinstein and published by Springer Science & Business Media. This book was released on 2000-10-31 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tidal salt marshes are viewed as critical habitats for the production of fish and shellfish. As a result, considerable legislation has been promulgated to conserve and protect these habitats, and much of it is in effect today. The relatively young science of ecological engineering has also emerged, and there are now attempts to reverse centuries-old losses by encouraging sound wetland restoration practices. Today, tens of thousands of hectares of degraded or isolated coastal wetlands are being restored worldwide. Whether restored wetlands reach functional equivalency to `natural' systems is a subject of heated debate. Equally debatable is the paradigm that depicts tidal salt marshes as the `great engine' that drives much of the secondary production in coastal waters. This view was questioned in the early 1980s by investigators who noted that total carbon export, on the order of 100 to 200 g m-2 y-1 was of much lower magnitude than originally thought. These authors also recognized that some marshes were either net importers of carbon, or showed no net exchange. Thus, the notion of `outwelling' has become but a single element in an evolving view of marsh function and the link between primary and secondary production. The `revisionist' movement was launched in 1979 when stable isotopic ratios of macrophytes and animal tissues were found to be `mismatched'. Some eighteen years later, the view of marsh function is still undergoing additional modification, and we are slowly unraveling the complexities of biogeochemical cycles, nutrient exchange, and the links between primary producers and the marsh/estuary fauna. Yet, since Teal's seminal paper nearly forty years ago, we are not much closer to understanding how marshes work. If anything, we have learned that the story is far more complicated than originally thought. Despite more than four decades of intense research, we do not yet know how salt marshes function as essential habitat, nor do we know the relative contributions to secondary production, both in situ or in the open waters of the estuary. The theme of this Symposium was to review the status of salt marsh research and revisit the existing paradigm(s) for salt marsh function. Challenge questions were designed to meet the controversy head on: Do marshes support the production of marine transient species? If so, how? Are any of these species marsh obligates? How much of the production takes place in situ versus in open waters of the estuary/coastal zone? Sessions were devoted to reviews of landmark studies, or current findings that advance our knowledge of salt marsh function. A day was also devoted to ecological engineering and wetland restoration papers addressing state-of-the-art methodology and specific case histories. Several challenge papers arguing for and against our ability to restore functional salt marshes led off each session. This volume is intended to serve as a synthesis of our current understanding of the ecological role of salt marshes, and will, it is hoped, pave the way for a new generation of research.
Download or read book Encyclopedia of Ecology written by Sven Erik Jørgensen and published by . This book was released on 2008 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Ecology contains contributions from international experts on a diverse array of topics related to ecology. It provides current and comprehensive information on many themes, including behavioral ecology, ecological processes, ecological modeling, ecological engineering, ecological indicators, ecological informatics, ecosystems, ecotoxicology, evolutionary ecology, general ecology, global ecology, human ecology, and systems ecology. The online version includes extensive internal cross-referencing and dynamic linking to journal articles and abstract databases.
