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A F Bouwman - One of the best experts on this subject based on the ideXlab platform.
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nutrient dynamics transfer and retention along the aquatic continuum from land to ocean towards integration of ecological and biogeochemical models
Biogeosciences, 2013Co-Authors: A F Bouwman, M F P Bierkens, Jasper Griffioen, Mariet M Hefting, Jack J Middelburg, H Middelkoop, Caroline P SlompAbstract:Abstract. In River basins, soils, groundwater, riparian zones and floodplains, streams, Rivers, lakes and reservoirs act as successive filters in which the hydrology, Ecology and biogeochemical processing are strongly coupled and together act to retain a significant fraction of the nutrients transported. This paper compares existing River Ecology concepts with current approaches to describe River biogeochemistry, and assesses the value of these concepts and approaches for understanding the impacts of interacting global change disturbances on River biogeochemistry. Through merging perspectives, concepts, and modeling techniques, we propose integrated model approaches that encompass both aquatic and terrestrial components in heterogeneous landscapes. In this model framework, existing ecological and biogeochemical concepts are extended with a balanced approach for assessing nutrient and sediment delivery, on the one hand, and nutrient in-stream retention on the other hand.
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nutrient dynamics transfer and retention along the aquatic continuum from land to ocean towards integration of ecological and biogeochemical models
Biogeosciences, 2012Co-Authors: A F Bouwman, M F P Bierkens, Jasper Griffioen, Mariet M Hefting, Jack J Middelburg, H Middelkoop, Caroline P SlompAbstract:In River basins, soils, groundwater, riparian zones and floodplains, streams, Rivers, lakes and reservoirs act as successive filters in which the hydrology, Ecology and biogeochemical processing are strongly coupled and together act to retain a significant fraction of the nutrients transported. This paper compares existing River Ecology concepts with current approaches to describe River biogeochemistry, and assesses the value of these concepts and approaches for understanding the impacts of interacting global change disturbances on River biogeochemistry. Through merging perspectives, concepts, and modeling techniques, we propose integrated model approaches that encompass both aquatic and terrestrial components in heterogeneous landscapes. In this model framework, existing ecological and biogeochemical concepts are extended with a balanced approach for assessing nutrient and sediment delivery, on the one hand, and nutrient in-stream retention on the other hand. © Author(s) 2013. CC Attribution 3.0 License.
Caroline P Slomp - One of the best experts on this subject based on the ideXlab platform.
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nutrient dynamics transfer and retention along the aquatic continuum from land to ocean towards integration of ecological and biogeochemical models
Biogeosciences, 2013Co-Authors: A F Bouwman, M F P Bierkens, Jasper Griffioen, Mariet M Hefting, Jack J Middelburg, H Middelkoop, Caroline P SlompAbstract:Abstract. In River basins, soils, groundwater, riparian zones and floodplains, streams, Rivers, lakes and reservoirs act as successive filters in which the hydrology, Ecology and biogeochemical processing are strongly coupled and together act to retain a significant fraction of the nutrients transported. This paper compares existing River Ecology concepts with current approaches to describe River biogeochemistry, and assesses the value of these concepts and approaches for understanding the impacts of interacting global change disturbances on River biogeochemistry. Through merging perspectives, concepts, and modeling techniques, we propose integrated model approaches that encompass both aquatic and terrestrial components in heterogeneous landscapes. In this model framework, existing ecological and biogeochemical concepts are extended with a balanced approach for assessing nutrient and sediment delivery, on the one hand, and nutrient in-stream retention on the other hand.
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nutrient dynamics transfer and retention along the aquatic continuum from land to ocean towards integration of ecological and biogeochemical models
Biogeosciences, 2012Co-Authors: A F Bouwman, M F P Bierkens, Jasper Griffioen, Mariet M Hefting, Jack J Middelburg, H Middelkoop, Caroline P SlompAbstract:In River basins, soils, groundwater, riparian zones and floodplains, streams, Rivers, lakes and reservoirs act as successive filters in which the hydrology, Ecology and biogeochemical processing are strongly coupled and together act to retain a significant fraction of the nutrients transported. This paper compares existing River Ecology concepts with current approaches to describe River biogeochemistry, and assesses the value of these concepts and approaches for understanding the impacts of interacting global change disturbances on River biogeochemistry. Through merging perspectives, concepts, and modeling techniques, we propose integrated model approaches that encompass both aquatic and terrestrial components in heterogeneous landscapes. In this model framework, existing ecological and biogeochemical concepts are extended with a balanced approach for assessing nutrient and sediment delivery, on the one hand, and nutrient in-stream retention on the other hand. © Author(s) 2013. CC Attribution 3.0 License.
Kate Lajtha - One of the best experts on this subject based on the ideXlab platform.
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stable isotopes in Ecology and environmental science
Journal of Animal Ecology, 1995Co-Authors: Robert H Michener, Kate LajthaAbstract:Contributors. Abbreviations. Introduction. 1. Stable isotope chemistry and measurement: a primer. Elizabeth W. Sulzman. Introduction. What isotopes are, what makes them distinct. Properties of ecologically useful stable isotopes. Technological advances and current trends in the ecological use of isotopes. Acknowledgments. References. 2. Sources of variation in the stable isotopic composition of plants. John D. Marshall, J. Renee Brooks, and Kate Lajtha. Introduction. Carbon isotopes. Nitrogen isotopes. Hydrogen and oxygen isotopes. Conclusions. References. 3. Natural 15N- and 13C-abundance as indicators of forest nitrogen status and soil carbon dynamics. Charles T. Garten, Jr, Paul J. Hanson, Donald E. Todd, Jr, Bonnie B. Lau, and Deanne J. Brice. Introduction. Significance of 15N-abundance to soil carbon sequestration. Vertical changes in soil 13C-abundance and soil carbon dynamics. Conclusions. Acknowledgments. References. 4. Soil nitrogen isotope composition. R. Dave Evans. Introduction. Sources of variation in soil 15N. Patterns of soil nitrogen isotope composition. Conclusions. References. 5. Isotopic study of the biology of modern and fossil vertebrates. Paul L. Koch. Introduction. Vertebrate tissues in the fossil record. Controls on the isotopic composition of vertebrate tissues. Preservation of biogenic isotope compositions by vertebrate fossils. Paleobiological applications. Conclusions. A post-script on workshops and literature resources. References. 6. Isotopic tracking of migrant wildlife. Keith A. Hobson. Introduction. Basic principles. Marine systems. Terrestrial systems (excluding deuterium). Using deuterium patterns in precipitation. Conclusions. References. 7. Natural abundance of 15N in marine planktonic ecosystems. Joseph P. Montoya. Introduction. Background. Isotopic variation in marine nitrogen. Source delineation and isotope budgets. Animal fractionation and food web processes. Isotopic transients in marine systems. Compound-specific nitrogen isotope analyses. Conclusions. Acknowledgment. References. 8. Stable isotope studies in marine chemoautotrophically based ecosystems: An update. Cindy Lee Van Dover. Introduction. Isotopic tracing of carbon at methane seeps. Whale falls. Hydrothermal vents. Conclusions. References. 9. Stable isotope ratios as tracers in marine food webs: An update. Robert H. Michener and Les Kaufman. Introduction. Methods of assessing food webs. Phytoplankton and particulate organic carbon. Phytoplankton and particulate organic nitrogen. Marine food webs. Stable isotopes in marine conservation biology. Conclusions. Acknowledgments. References. 10. Stable isotope tracing of temporal and spatial variability in organic matter sources to freshwater ecosystems. Jacques C. Finlay and Carol Kendall. Introduction. Overview of River food webs and stable isotope approaches. Stable isotope ratios of organic matter sources in stream ecosystems. C, N, and S isotopic variability and its applications in River Ecology. Conclusions. Acknowledgments. References. 11. Stable isotope tracers in watershed hydrology. Kevin J. McGuire and Jeff McDonnell. Introduction. Basic concepts in watershed hydrology. Why are stable isotopes needed?. General concepts in isotope hydrology. Applications of isotope hydrology in watershed and ecosystem studies. Conclusions. Acknowledgments. References. 12. Tracing anthropogenic inputs of nitrogen to ecosystems. Carol Kendall, Emily M. Elliott, and Scott D. Wankel. Introduction. Isotopic compositions of major N sources to ecosystems. Processes affecting the isotopic composition of DIN. Separating mixing of sources from the effects of cycling. Applications to different environmental settings. What sources of agricultural and urban sources of nitrate can be distinguished using isotopes?. Other tools for tracing anthropogenic contaminants. Conclusions. References. 13. Modeling the dynamics of stable-isotope ratios for ecosystem biogeochemistry. William S. Currie. Introduction. Designing consistent model-data linkages and comparisons. Principles and techniques of stable isotope modeling. Conclusions. Acknowledgments. References. 14. Compound-specific stable isotope analysis in Ecology and paleoEcology. Richard P. Evershed, Ian D. Bull, Lorna T. Corr, Zoe M. Crossman, Bart E. van Dongen, Claire Evans, Susan Jim, Hazel Mottram, Anna J. Mukherjee, and Richard D. Pancost. Introduction. Why use compound-specific stable isotopes?. Analytical considerations in compound-specific stable isotope analysis. Applications of compound-specific stable isotope approaches in Ecology and paleoEcology. Conclusions. References. Index
Charles N Ciampaglio - One of the best experts on this subject based on the ideXlab platform.
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late pleistocene fishes of the tennessee River basin an analysis of a late pleistocene freshwater fish fauna from bell cave site acb 2 in colbert county alabama usa
PeerJ, 2016Co-Authors: Stephen J Jacquemin, Jun A Ebersole, William C Dickinson, Charles N CiampaglioAbstract:The Tennessee River Basin is considered one of the most important regions for freshwater biodiversity anywhere on the globe. The Tennessee River Basin currently includes populations of at least half of the described contemporary diversity of extant North American freshwater fishes, crayfish, mussel, and gastropod species. However, comparatively little is known about the biodiversity of this basin from the Pleistocene Epoch, particularly the late Pleistocene (∼10,000 to 30,000 years B.P.) leading to modern Holocene fish diversity patterns. The objective of this study was to describe the fish assemblages of the Tennessee River Basin from the late Pleistocene using a series of faunas from locales throughout the basin documented from published literature, unpublished reports, and an undocumented fauna from Bell Cave (site ACb-2, Colbert County, AL). Herein we discuss 41 unequivocal taxa from 10 late Pleistocene localities within the basin and include a systematic discussion of 11 families, 19 genera, and 24 identifiable species (28 unequivocal taxa) specific to the Bell Cave locality. Among the described fauna are several extirpated (e.g., Northern Pike Esox lucius, Northern Madtom Noturus stigmosus) and a single extinct (Harelip Sucker Moxostoma lacerum) taxa that suggest a combination of late Pleistocene displacement events coupled with more recent changes in habitat that have resulted in modern basin diversity patterns. The Bell Cave locality represents one of the most intact Pleistocene freshwater fish deposits anywhere in North America. Significant preservational, taphonomic, sampling, and identification biases preclude the identification of additional taxa. Overall, this study provides a detailed look into paleo-River Ecology, as well as freshwater fish diversity and distribution leading up to the contemporary biodiversity patterns of the Tennessee River Basin and Mississippi River Basin as a whole.
M F P Bierkens - One of the best experts on this subject based on the ideXlab platform.
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nutrient dynamics transfer and retention along the aquatic continuum from land to ocean towards integration of ecological and biogeochemical models
Biogeosciences, 2013Co-Authors: A F Bouwman, M F P Bierkens, Jasper Griffioen, Mariet M Hefting, Jack J Middelburg, H Middelkoop, Caroline P SlompAbstract:Abstract. In River basins, soils, groundwater, riparian zones and floodplains, streams, Rivers, lakes and reservoirs act as successive filters in which the hydrology, Ecology and biogeochemical processing are strongly coupled and together act to retain a significant fraction of the nutrients transported. This paper compares existing River Ecology concepts with current approaches to describe River biogeochemistry, and assesses the value of these concepts and approaches for understanding the impacts of interacting global change disturbances on River biogeochemistry. Through merging perspectives, concepts, and modeling techniques, we propose integrated model approaches that encompass both aquatic and terrestrial components in heterogeneous landscapes. In this model framework, existing ecological and biogeochemical concepts are extended with a balanced approach for assessing nutrient and sediment delivery, on the one hand, and nutrient in-stream retention on the other hand.
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nutrient dynamics transfer and retention along the aquatic continuum from land to ocean towards integration of ecological and biogeochemical models
Biogeosciences, 2012Co-Authors: A F Bouwman, M F P Bierkens, Jasper Griffioen, Mariet M Hefting, Jack J Middelburg, H Middelkoop, Caroline P SlompAbstract:In River basins, soils, groundwater, riparian zones and floodplains, streams, Rivers, lakes and reservoirs act as successive filters in which the hydrology, Ecology and biogeochemical processing are strongly coupled and together act to retain a significant fraction of the nutrients transported. This paper compares existing River Ecology concepts with current approaches to describe River biogeochemistry, and assesses the value of these concepts and approaches for understanding the impacts of interacting global change disturbances on River biogeochemistry. Through merging perspectives, concepts, and modeling techniques, we propose integrated model approaches that encompass both aquatic and terrestrial components in heterogeneous landscapes. In this model framework, existing ecological and biogeochemical concepts are extended with a balanced approach for assessing nutrient and sediment delivery, on the one hand, and nutrient in-stream retention on the other hand. © Author(s) 2013. CC Attribution 3.0 License.
