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Full-Text Articles in Life Sciences
Spatial Variability Of Mangrove Primary Productivity In The Neotropics, Rafaela De Albuquerque Ribeiro, Andre Scarlate Rovai, Robert R. Twilley, Edward Castaneda-Moya
Spatial Variability Of Mangrove Primary Productivity In The Neotropics, Rafaela De Albuquerque Ribeiro, Andre Scarlate Rovai, Robert R. Twilley, Edward Castaneda-Moya
SERC Faculty Publications
Mangroves are considered one of the most productive ecosystems in the world with significant contributions as carbon sinks in the biosphere. Yet few attempts have been made to assess global patterns in mangrove net primary productivity, except for a few assumptions relating litterfall rates to variation in latitude. We combined geophysical and climatic variables to predict mangrove litterfall rates at continental scale. On a per‐area basis, carbon flux in litterfall in the neotropics is estimated at 5 MgC·ha−1·yr−1, between 20% and 50% higher than previous estimates. Annual carbon fixed in mangrove litterfall in the neotropics is estimated at 11.5 TgC, …
Origin And Development Of True Karst Valleys In Response To Late Holocene Sea‐Level Change, The Transverse Glades Of Southeast Florida, Usa, John (Jack) Meeder, Peter Harlem
Origin And Development Of True Karst Valleys In Response To Late Holocene Sea‐Level Change, The Transverse Glades Of Southeast Florida, Usa, John (Jack) Meeder, Peter Harlem
SERC Faculty Publications
The Miami Limestone is an oolite depositional body that is used as an analog model for geological interpretation of the rock record. Barrier‐bar complex, oolite banks, extensive bryozoan flats and tidal creeks, referred to as transverse glades, have been described. High‐resolution LiDAR data are used to produce unprecedented, detailed topographic maps of the transverse glades in the southern Atlantic Coastal Ridge. These maps were originally used to calculate historic discharge from the Everglades but revealed features inconsistent with the prevailing theory that the topography is of a depositional origin. Field observations verified an epikarst terrain truncated by collapsed subsurface conduits …
Isaw: Integrating Structure, Actors, And Water To Study Socio-Hydro-Ecological Systems, Rebecca Hale, Andrea Armstrong, Michelle A. Baker, Sean Bedingfield, David Betts, Caleb Buahin, Martin Buchert, Todd Crowl, R. Ryan Dupont, James R. Ehleringer, Joanna Endter-Wada, Courtney Flint, Jacqualine Grant, Sarah Hinners, Jeffery S. Horsburgh, Douglas Jackson-Smith, Amber S. Jones, Carlos Licon, Sarah E. Null, Augustina Odame, Diane E. Pataki, David Rosenberg, Madlyn Runburg, Philip Stoker, Courtenay Strong
Isaw: Integrating Structure, Actors, And Water To Study Socio-Hydro-Ecological Systems, Rebecca Hale, Andrea Armstrong, Michelle A. Baker, Sean Bedingfield, David Betts, Caleb Buahin, Martin Buchert, Todd Crowl, R. Ryan Dupont, James R. Ehleringer, Joanna Endter-Wada, Courtney Flint, Jacqualine Grant, Sarah Hinners, Jeffery S. Horsburgh, Douglas Jackson-Smith, Amber S. Jones, Carlos Licon, Sarah E. Null, Augustina Odame, Diane E. Pataki, David Rosenberg, Madlyn Runburg, Philip Stoker, Courtenay Strong
SERC Faculty Publications
Urbanization, climate, and ecosystem change represent major challenges for managing water resources. Although water systems are complex, a need exists for a generalized representation of these systems to identify important components and linkages to guide scientific inquiry and aid water management. We developed an integrated Structure-Actor-Water framework (iSAW) to facilitate the understanding of and transitions to sustainable water systems. Our goal was to produce an interdisciplinary framework for water resources research that could address management challenges across scales (e.g., plot to region) and domains (e.g., water supply and quality, transitioning, and urban landscapes). The framework was designed to be generalizable …
Interactions Of Local Climatic, Biotic And Hydrogeochemical Processes Facilitate Phosphorus Dynamics Along An Everglades Forest-Marsh Gradient, Tiffany Troxler-Gann, C. Coronado-Molina, D. N. Rondeau, S. Krupa, S. Newman, M. Manna, René M. Price, F. H. Sklar
Interactions Of Local Climatic, Biotic And Hydrogeochemical Processes Facilitate Phosphorus Dynamics Along An Everglades Forest-Marsh Gradient, Tiffany Troxler-Gann, C. Coronado-Molina, D. N. Rondeau, S. Krupa, S. Newman, M. Manna, René M. Price, F. H. Sklar
SERC Faculty Publications
Ecosystem nutrient cycling is often complex because nutrient dynamics within and between systems are mediated by the interaction of biological and geochemical conditions operating at different temporal and spatial scales. Vegetated patches in semiarid and wetland landscapes have been shown to exemplify some of these patterns and processes. We investigated biological and geochemical factors suggested to contribute to phosphorus (P) movement and availability along a forest-marsh gradient in an Everglades tree island. Our study illustrated processes that are consistent with the chemohydrodynamic nutrient (CHNT) hypothesis and the trigger-transfer, pulse-reserve (TTPR) model developed for semiarid systems. Comparison with the TTPR model …
Effects Of Timber Harvesting With Best Management Practices On Ecosystem Metabolism Of A Low Gradient Stream On The United States Gulf Coastal Plain, Abram Dasilva, Y. Jun Xu, George Ice, John Beebe, Richard Stich
Effects Of Timber Harvesting With Best Management Practices On Ecosystem Metabolism Of A Low Gradient Stream On The United States Gulf Coastal Plain, Abram Dasilva, Y. Jun Xu, George Ice, John Beebe, Richard Stich
SERC Faculty Publications
Stream metabolism can be used as a measure of freshwater ecosystem health because of its responsiveness to natural and anthropogenic changes. In this study, we used stream metabolic rates to test for the effects of a timber harvest with Louisiana’s current best management practices (BMPs). The study was conducted from 2006 to 2010 in a loblolly pine (Pinus taeda) stand in north-central Louisiana, USA, 45 ha of which was clear cut harvested in the summer of 2007. Dissolved oxygen (DO), water temperature, and stream depth were recorded at a site upstream (serving as a reference) and a site …
Atmospheric Deposition As A Source Of Carbon And Nutrients To An Alpine Catchment Of The Colorado Rocky Mountains, N. Mladenov, M. W. Williams, S. K. Schmidt, Kaelin M. Cawley
Atmospheric Deposition As A Source Of Carbon And Nutrients To An Alpine Catchment Of The Colorado Rocky Mountains, N. Mladenov, M. W. Williams, S. K. Schmidt, Kaelin M. Cawley
SERC Faculty Publications
Many alpine areas are experiencing deglaciation, biogeochemical changes driven by temperature rise, and changes in atmospheric deposition. There is mounting evidence that the water quality of alpine streams may be related to these changes, including rising atmospheric deposition of carbon (C) and nutrients. Given that barren alpine soils can be severely C limited, atmospheric deposition sources may be an important source of C and nutrients for these environments. We evaluated the magnitude of atmospheric deposition of C and nutrients to an alpine site, the Green Lake 4 catchment in the Colorado Rocky Mountains. Using a long-term dataset (2002–2010) of weekly …