Ken Krauss, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 19
Filter Total Items: 36
Sap flow data from a long-hydroperiod forested wetland undergoing salinity intrusion in South Carolina, USA Sap flow data from a long-hydroperiod forested wetland undergoing salinity intrusion in South Carolina, USA
These data represent sap flow measurements from four tree species and were recorded every 30 minutes over several months in 2015. Data were collected from a tidally-influenced freshwater forested wetland at Strawberry Swamp, located on Hobcaw Barony, which is approximately 7 km east of Georgetown, South Carolina, USA.
Forest community biomass and growth in Great Dismal Swamp, Virginia and North Carolina, USA Forest community biomass and growth in Great Dismal Swamp, Virginia and North Carolina, USA
Forest surveys were conducted in nine 20 m x 25 m study plots, split into 3 representatives each for three forest types in Great Dismal Swamp, VA and NC, USA, December 2015 - February 2018. Trees, saplings, and shrubs were identified to species and measured for estimates of standing stocks. Standing stock data include: tree diameter at breast height (dbh), height, and condition; sapling...
Net ecosystem exchange of CO2 and CH4 from two Louisiana coastal marshes Net ecosystem exchange of CO2 and CH4 from two Louisiana coastal marshes
Data were obtained to assess net ecosystem exchange of CH4 and CO2 in tidal freshwater and brackish marshes. These data represent net ecosystem exchange of CH4 and CO2 collected using eddy covariance over various time frames. Data were collected from a brackish marsh at Pointe-aux-Chenes State Wildlife Management Area and a tidally influenced freshwater marsh at Salvador State Wildlife...
Salt marsh carbon dynamics under altered hydrologic regimes and elevated CO2 conditions, Louisiana, USA (2014-2015) Salt marsh carbon dynamics under altered hydrologic regimes and elevated CO2 conditions, Louisiana, USA (2014-2015)
Plant-mediated processes are often important in determining carbon cycling and storage in ecosystems. With climate-induced changes in the environment, plant-associated processes may also shift. Salt marshes in particular are useful systems to investigate plant-mediated carbon cycling, as these systems experience both sea-level rise and increased carbon dioxide concentrations due to...
Baseline data for a hydrological restoration of a mangrove forest near Goodland, Florida (2015 - 2017) Baseline data for a hydrological restoration of a mangrove forest near Goodland, Florida (2015 - 2017)
Mangrove restoration has a strong potential to enhance the services provided by coastal wetlands on a number of Department of the Interior (DOI) managed lands throughout the southeastern United States of America. Services include storm protection, water quality improvement, and biological carbon sequestration. Forest structural attributes including basal area, tree height, and stem...
Elevation change along a coastal wetland landscape gradient from tidal freshwater forested wetland to oligohaline marsh in the Southeastern U.S.A. (2009-2014) Elevation change along a coastal wetland landscape gradient from tidal freshwater forested wetland to oligohaline marsh in the Southeastern U.S.A. (2009-2014)
We assessed the resilience of wetlands to sea-level rise along a transitional gradient from tidal freshwater forested wetland (TFFW) to oligohaline marsh by measuring processes controlling wetland elevation. We identified fundamental differences in how resilience is maintained across wetland community types, which have important implications for management activities that aim to restore...
Assessing coastal wetland vulnerability to sea-level rise along the northern Gulf of Mexico coast: gaps and opportunities for developing a coordinated regional sampling network Assessing coastal wetland vulnerability to sea-level rise along the northern Gulf of Mexico coast: gaps and opportunities for developing a coordinated regional sampling network
The study area included the coasts of all five U.S. states along the northern Gulf of Mexico (i.e., Florida, Alabama, Mississippi, Louisiana, and Texas). We contacted federal, state, and university-affiliated scientists working with SET-MH data within this area to obtain the geographic coordinates and the installation year for each SET-MH station. Please note that while our inventory is...
Linear and nonlinear effects of temperature and precipitation on ecosystem properties in tidal saline wetlands Linear and nonlinear effects of temperature and precipitation on ecosystem properties in tidal saline wetlands
Macroclimatic drivers, such as temperature and rainfall regimes, greatly influence ecosystem structure and function in tidal saline wetlands. Understanding the ecological influence of macroclimatic drivers is important because it provides a foundation for anticipating the effects of climate change. Tidal saline wetlands include mangrove forests, salt marshes, and salt flats, which occupy...
Organic matter decomposition along coastal wetland landscape gradient from tidal freshwater forested wetland to oligohaline marsh in Southeastern U.S.A. (2010-2011) Organic matter decomposition along coastal wetland landscape gradient from tidal freshwater forested wetland to oligohaline marsh in Southeastern U.S.A. (2010-2011)
Coastal wetlands significantly contribute to global carbon storage potential. Sea-level rise and other climate change-induced disturbances threaten coastal wetland sustainability and carbon storage capacity. It is critical that we understand the mechanisms controlling wetland carbon loss so that we can predict and manage these resources in anticipation of climate change.
Predicting landscape effects of Mississippi River diversions on soil organic carbon sequestration Predicting landscape effects of Mississippi River diversions on soil organic carbon sequestration
It contains supporting data from the wetland morphology modeling to support the analysis on the landscape effects of Mississippi River diversions in the context of sea-level rise on soil organic carbon (SOC) sequestration along coastal Louisiana wetlands.
Plant biomass, carbon content, decomposition, and soil greenhouse gas fluxes to support carbon budget development for a created salt marsh in eastern North Carolina, USA Plant biomass, carbon content, decomposition, and soil greenhouse gas fluxes to support carbon budget development for a created salt marsh in eastern North Carolina, USA
These data were collected from a small (14 ha), created salt marsh in Carteret County, North Carolina (34.82 deg. N; 76.61 deg. W). This site was created in 2007 following an engineering plan developed by Dr. Michael Burchell (NC-State University). This data collection was to support the development of a site-specific carbon budget. Data were collected from 2011 to 2013, or approximately...
Surface elevation change (VLMw) and vertical accretion data from created mangroves in Tampa Bay, Florida, USA (2011-2016) Surface elevation change (VLMw) and vertical accretion data from created mangroves in Tampa Bay, Florida, USA (2011-2016)
These data represent surface elevation change (or "Vertical Land Motion of the Wetland": VLMw) and vertical accretion time series collected from a series of created tidal wetland sites in the Tampa Bay watershed, Florida, USA. VLMw was measured using a combination of rod Surface Elevation Tables (RSETs), shallow root-zone SETs, and feldspar marker horizons. Sites were created and planted...
Filter Total Items: 195
Soil salinity and water level interact to generate tipping points in low salinity tidal wetlands responding to climate change Soil salinity and water level interact to generate tipping points in low salinity tidal wetlands responding to climate change
Low salinity tidal wetlands (LSTW) are vulnerable to sea level rise and saltwater intrusion, thus their carbon sequestration capacity is threatened. However, the thresholds of rapid changes in carbon dynamics and biogeochemical processes in LSTW due to changes in hydroperiod and salinity regime remain unclear. In this study, we examined the effects of soil porewater salinity and water...
Authors
Hongqing Wang, Ken Krauss, Gregory Noe, Zhaohua Dai, Carl Trettin
Presence of hummock and hollow microtopography reflects shifting balances of shallow subsidence and root zone expansion along forested wetland river gradients Presence of hummock and hollow microtopography reflects shifting balances of shallow subsidence and root zone expansion along forested wetland river gradients
Tidal freshwater forested wetlands (TFFWs) are in an active phase of transition to tidal marsh with sea level rise and salinity incursion along the Atlantic and Gulf Coasts of the United States (U.S.). A prominent feature of TFFWs is hummock/hollow microtopography where hollows represent the flat, base-elevation of the floodplain where inundation occurs relatively frequently, while...
Authors
Ken Krauss, Gregory Noe, Jamie A. Duberstein, Nicole Cormier, Andrew From, Thomas Doody, William Conner, Donald Cahoon, Darren Johnson
Rapidly changing range limits in a warming world: Critical data limitations and knowledge gaps for advancing understanding of mangrove range dynamics in the southeastern USA Rapidly changing range limits in a warming world: Critical data limitations and knowledge gaps for advancing understanding of mangrove range dynamics in the southeastern USA
Climate change is altering species’ range limits and transforming ecosystems. For example, warming temperatures are leading to the range expansion of tropical, cold-sensitive species at the expense of their cold-tolerant counterparts. In some temperate and subtropical coastal wetlands, warming winters are enabling mangrove forest encroachment into salt marsh, which is a major regime...
Authors
Remi Bardou, Michael Osland, Steven Scyphers, Christine C. Shepard, Karen Aerni, Jahson Alemu, Robert Crimian, Richard Day, Nicholas Enwright, Laura Feher, Sarah Gibbs, Kiera O’Donnell, Savannah Swinea, Kalaina Thorne, Sarit Truskey, Anna Armitage, Ronald J. Baker, Joshua Breithaupt, Kyle Cavanaugh, Just Cebrian, Karen Cummins, Donna Devlin, Jacob Doty, William Ellis, Ilka Feller, Christopher A. Gabler, Yiyang Kang, David Kaplan, John Kennedy, Ken Krauss, Margaret Lamont, Kam-biu Liu, Melinda Martinez, Ashley Matheny, Giovanna McClenachan, Karen McKee, Irving Mendelssohn, Thomas Michot, Christopher J. Miller, Jena Moon, Ryan Moyer, James A. Nelson, Richard O’Connor, James Pahl, Jonathan Pitchford, C. Edward Proffitt, Tracy Quirk, Kara Radabaugh, Whitney Scheffel, Delbert Smee, Caitlin Snyder, Eric Sparks, Kathleen M. Swanson, William Vervaeke, Carolyn Weaver, Jonathan A Willis, Erik Yando, Qiang Yao, A. Hughes
Modeling impacts of saltwater intrusion on methane and nitrous oxide emissions in tidal forested wetlands Modeling impacts of saltwater intrusion on methane and nitrous oxide emissions in tidal forested wetlands
Emissions of methane (CH4) and nitrous oxide (N2O) from soils to the atmosphere can offset the benefits of carbon sequestration for climate change mitigation. While past study has suggested that both CH4 and N2O emissions from tidal freshwater forested wetlands (TFFW) are generally low, the impacts of coastal droughts and drought-induced saltwater intrusion on CH4 and N2O emissions...
Authors
Hongqing Wang, Zhaohua Dai, Ken Krauss, Carl Trettin, Gregory Noe, Andrew Burton, Eric Ward
Changes in mangrove blue carbon under elevated atmospheric CO2 Changes in mangrove blue carbon under elevated atmospheric CO2
While there is consensus that blue carbon ecosystems, such as mangroves, have an important role in mitigating some aspects of global climate change, little is known about mangrove carbon cycling under elevated atmospheric CO2 concentrations (eCO2). Here, we review studies in order to identify pathways for how eCO2 might influence mangrove ecosystem carbon cycling. In general, eCO2 alters...
Authors
Xiaoxuan Gu, Peiyang Qiao, Ken Krauss, Catherine Lovelock, Janine Adams, Samantha Chapman, Tim Jennerjahn, Qiulian Lin, Luzhen Chen
Framework for facilitating mangrove recovery after hurricanes on Caribbean islands Framework for facilitating mangrove recovery after hurricanes on Caribbean islands
Mangrove ecosystems in the Caribbean are frequently exposed to hurricanes, leading to structural and regenerative change that elicit calls for recovery action. For those mangroves unaffected by human modifications, recovery can occur naturally. Indeed, observable natural recovery after hurricanes is the genesis of the “disturbance adaptation” classification for mangroves; while...
Authors
Ken Krauss, Kevin Whelan, John Kennedy, Daniel Friess, Caroline Rogers, Heather Stewart, Kristin Grimes, Camilo Trench, Danielle Ogurcak, Catherine Toline, Lianne Ball, Andrew From
Mangrove reforestation provides greater blue carbon benefit than afforestation for mitigating global climate change Mangrove reforestation provides greater blue carbon benefit than afforestation for mitigating global climate change
Significant efforts have been invested to restore mangrove forests worldwide through reforestation and afforestation. However, blue carbon benefit has not been compared between these two silvicultural pathways at the global scale. Here, we integrated results from direct field measurements of over 370 restoration sites around the world to show that mangrove reforestation (reestablishing...
Authors
Shanshan Song, Yali Ding, Wei Li, Yuchen Meng, Jianping Zhou, Ruikun Gou, Conghe Zhang, Shengbin Ye, Neil Saintilan, Ken Krauss, Stephen Crooks, Shuguo Lv, Guanghui Lin
Response of soil respiration to changes in soil temperature and water table level in drained and restored peatlands of the southeastern United States Response of soil respiration to changes in soil temperature and water table level in drained and restored peatlands of the southeastern United States
Extensive drainage of peatlands in the southeastern United States coastal plain for the purposes of agriculture and timber harvesting has led to large releases of soil carbon as carbon dioxide (CO2) due to enhanced peat decomposition. Growth in mechanisms that provide financial incentives for reducing emissions from land use and land-use change could increase funding for hydrological...
Authors
Erin Swails, Marcelo Ardon, Ken Krauss, A.L. Peralta, Ryan Emmanuel, A.M. Helton, J.L. Morse, Laurel Gutenberg, Nicole Cormier, D. Shoch, Scott Settlemyer, Eric Soderholm, Brian Boutin, Chuck Peoples, Sara Ward
Biophysical warming patterns of an open-top chamber and its short-term influence on a Phragmites wetland ecosystem in China Biophysical warming patterns of an open-top chamber and its short-term influence on a Phragmites wetland ecosystem in China
Passive-warming, open-top chambers (OTCs) are widely applied for studying the effects of future climate warming on coastal wetlands. In this study, a set of six OTCs were established at a Phragmites wetland located in the Yellow River Delta of Dongying City, China. With data collected through online transmission and in-situ sensors, the attributes and patterns of realized OTCs warming...
Authors
Xue-yang Yu, Si-yuan Ye, Li-xin Pei, Liu-juan Xie, Ken Krauss, Samantha Chapman, Hans Brix
Mangroves provide blue carbon ecological value at a low freshwater cost Mangroves provide blue carbon ecological value at a low freshwater cost
“Blue carbon” wetland vegetation has a limited freshwater requirement. One type, mangroves, utilizes less freshwater during transpiration than adjacent terrestrial ecoregions, equating to only 43% (average) to 57% (potential) of evapotranspiration ( ET). Here, we demonstrate that comparative consumptive water use by mangrove vegetation is as much as 2905 kL H2O ha−1 year−1 less than...
Authors
Ken Krauss, Catherine Lovelock, Luzhen Chen, Uta Berger, Marilyn Ball, Ruth Reef, Ronny Peters, Hannah Bowen, Alejandra Vovides, Eric Ward, Marie-Christin Wimmler, Joel A. Carr, Pete Bunting, Jamie A. Duberstein
Hydrologic restoration decreases greenhouse gas emissions from shrub bog peatlands in southeastern US Hydrologic restoration decreases greenhouse gas emissions from shrub bog peatlands in southeastern US
Peatlands play a disproportionate role in the global carbon cycle. However, many peatlands have been ditched to lower the water table and converted into agriculture, which contributes to anthropogenic greenhouse gas emissions. Hydrologic restoration of drained peatlands could offset greenhouse gas emissions from these actions, but field examples that consider various greenhouse gases are...
Authors
Luise Armstrong, Ariane Peralta, Ken Krauss, N. Cormier, Rebecca Moss, Eric Soderholm, Aaron McCall, Christine Pickens, Marcelo Ardon
Mangrove Wetlands Mangrove Wetlands
No abstract available.
Authors
Robert Twilley, Andre Rovai, Ken Krauss
Non-USGS Publications**
Kumara, M.P., L.P. Jayatissa, K.W. Krauss, D.H. Phillips, & M. Huxham. 2010. High mangrove density enhances surface accretion, surface elevation change, and tree survival in coastal areas susceptible to sea-level rise. Oecologia 164: 545-553.
Huxham, M., M. Kumara, L. Jayatissa, K.W. Krauss, J. Kairo, J. Langat, M. Mencuccini, M. Skov & B. Kirui. 2010. Intra and inter-specific facilitation in mangroves may increase resilience to climate change threats. Philosophical Transactions of the Royal Society of London B 365: 2127-2135.
Krauss, K.W. 2009. Mangrove energetics. Ecology 90: 3588-3589. [book review]
Krauss, K.W., C.E. Lovelock, K.L. McKee, L. López-Hoffman, S.M.L. Ewe & W.P. Sousa. 2008. Environmental drivers in mangrove establishment and early development: a review. Aquatic Botany 89: 105-127.
Conner, W.H., T.W. Doyle & K.W. Krauss, Eds., 2007. Ecology of Tidal Freshwater Forested Wetlands of the Southeastern United States. Springer. 505 p.
Krauss, K.W., J.L. Chambers & D. Creech. 2007. Selection for salt tolerance in tidal freshwater swamp species: advances using baldcypress as a model for restoration. Pages 385-410 in W.H. Conner, T.W. Doyle, K.W. Krauss (eds.), Ecology of Tidal Freshwater Forested Wetlands of the Southeastern United States. Springer. 505 p.
Conner W.H., K.W. Krauss & T.W. Doyle. 2007. Ecology of tidal freshwater forests in coastal deltaic Louisiana and northeastern South Carolina. Pages 223-253 in W.H. Conner, T.W. Doyle, K.W. Krauss (eds.), Ecology of Tidal Freshwater Forested Wetlands of the Southeastern United States. Springer. 505 p.
Conner, W.H., C.T. Hackney, K.W. Krauss & J.W. Day, Jr. 2007. Tidal freshwater forested wetlands: future research needs and an overview of restoration. Pages 461-485 in W.H. Conner, T.W. Doyle, K.W. Krauss (eds.), Ecology of Tidal Freshwater Forested Wetlands of the Southeastern United States. Springer. 505 p.
Gardiner, E.S. & K.W. Krauss. 2001. Photosynthetic light response of flooded cherrybark oak (Quercus pagoda) seedlings grown in two light regimes. Tree Physiology 21: 1103-1111.
Krauss, K.W., R.A. Goyer, J.A. Allen & J.L. Chambers. 2000. Tree shelters effective in coastal swamp restoration (Louisiana). Ecological Restoration18: 200-201.
Allen, J.A., K.W. Krauss, N.C. Duke, O. Björkman, D.R. Herbst & C. Shih. 2000. Bruguiera species in Hawai’i: systematic considerations and ecological implications. Pacific Science 54: 331-343.
Doyle, T.W. & K.W. Krauss. 1999. The sands and sambars of St. Vincent Island. Florida Wildlife 53: 22-25.
Krauss, K.W., J.L. Chambers & J.A. Allen. 1998. Salinity effects and differential germination of several half-sib families of baldcypress from different seed sources. New Forests 15: 53-68.
Allen, J.A., W.H. Conner, R.A. Goyer, J.L. Chambers & K.W. Krauss. 1998. Chapter 4: Freshwater forested wetlands and global climate change. Pages 33-44 in G.R. Guntenspergen and B.A Vairin (eds.), Vulnerability of coastal wetlands in the Southeastern United States: climate change research results, 1992-97. U.S. Geological Survey, Biological Resources Division Biological Science Report USGS/BRD/BSR-1998-0002. 101 p.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 19
Filter Total Items: 36
Sap flow data from a long-hydroperiod forested wetland undergoing salinity intrusion in South Carolina, USA Sap flow data from a long-hydroperiod forested wetland undergoing salinity intrusion in South Carolina, USA
These data represent sap flow measurements from four tree species and were recorded every 30 minutes over several months in 2015. Data were collected from a tidally-influenced freshwater forested wetland at Strawberry Swamp, located on Hobcaw Barony, which is approximately 7 km east of Georgetown, South Carolina, USA.
Forest community biomass and growth in Great Dismal Swamp, Virginia and North Carolina, USA Forest community biomass and growth in Great Dismal Swamp, Virginia and North Carolina, USA
Forest surveys were conducted in nine 20 m x 25 m study plots, split into 3 representatives each for three forest types in Great Dismal Swamp, VA and NC, USA, December 2015 - February 2018. Trees, saplings, and shrubs were identified to species and measured for estimates of standing stocks. Standing stock data include: tree diameter at breast height (dbh), height, and condition; sapling...
Net ecosystem exchange of CO2 and CH4 from two Louisiana coastal marshes Net ecosystem exchange of CO2 and CH4 from two Louisiana coastal marshes
Data were obtained to assess net ecosystem exchange of CH4 and CO2 in tidal freshwater and brackish marshes. These data represent net ecosystem exchange of CH4 and CO2 collected using eddy covariance over various time frames. Data were collected from a brackish marsh at Pointe-aux-Chenes State Wildlife Management Area and a tidally influenced freshwater marsh at Salvador State Wildlife...
Salt marsh carbon dynamics under altered hydrologic regimes and elevated CO2 conditions, Louisiana, USA (2014-2015) Salt marsh carbon dynamics under altered hydrologic regimes and elevated CO2 conditions, Louisiana, USA (2014-2015)
Plant-mediated processes are often important in determining carbon cycling and storage in ecosystems. With climate-induced changes in the environment, plant-associated processes may also shift. Salt marshes in particular are useful systems to investigate plant-mediated carbon cycling, as these systems experience both sea-level rise and increased carbon dioxide concentrations due to...
Baseline data for a hydrological restoration of a mangrove forest near Goodland, Florida (2015 - 2017) Baseline data for a hydrological restoration of a mangrove forest near Goodland, Florida (2015 - 2017)
Mangrove restoration has a strong potential to enhance the services provided by coastal wetlands on a number of Department of the Interior (DOI) managed lands throughout the southeastern United States of America. Services include storm protection, water quality improvement, and biological carbon sequestration. Forest structural attributes including basal area, tree height, and stem...
Elevation change along a coastal wetland landscape gradient from tidal freshwater forested wetland to oligohaline marsh in the Southeastern U.S.A. (2009-2014) Elevation change along a coastal wetland landscape gradient from tidal freshwater forested wetland to oligohaline marsh in the Southeastern U.S.A. (2009-2014)
We assessed the resilience of wetlands to sea-level rise along a transitional gradient from tidal freshwater forested wetland (TFFW) to oligohaline marsh by measuring processes controlling wetland elevation. We identified fundamental differences in how resilience is maintained across wetland community types, which have important implications for management activities that aim to restore...
Assessing coastal wetland vulnerability to sea-level rise along the northern Gulf of Mexico coast: gaps and opportunities for developing a coordinated regional sampling network Assessing coastal wetland vulnerability to sea-level rise along the northern Gulf of Mexico coast: gaps and opportunities for developing a coordinated regional sampling network
The study area included the coasts of all five U.S. states along the northern Gulf of Mexico (i.e., Florida, Alabama, Mississippi, Louisiana, and Texas). We contacted federal, state, and university-affiliated scientists working with SET-MH data within this area to obtain the geographic coordinates and the installation year for each SET-MH station. Please note that while our inventory is...
Linear and nonlinear effects of temperature and precipitation on ecosystem properties in tidal saline wetlands Linear and nonlinear effects of temperature and precipitation on ecosystem properties in tidal saline wetlands
Macroclimatic drivers, such as temperature and rainfall regimes, greatly influence ecosystem structure and function in tidal saline wetlands. Understanding the ecological influence of macroclimatic drivers is important because it provides a foundation for anticipating the effects of climate change. Tidal saline wetlands include mangrove forests, salt marshes, and salt flats, which occupy...
Organic matter decomposition along coastal wetland landscape gradient from tidal freshwater forested wetland to oligohaline marsh in Southeastern U.S.A. (2010-2011) Organic matter decomposition along coastal wetland landscape gradient from tidal freshwater forested wetland to oligohaline marsh in Southeastern U.S.A. (2010-2011)
Coastal wetlands significantly contribute to global carbon storage potential. Sea-level rise and other climate change-induced disturbances threaten coastal wetland sustainability and carbon storage capacity. It is critical that we understand the mechanisms controlling wetland carbon loss so that we can predict and manage these resources in anticipation of climate change.
Predicting landscape effects of Mississippi River diversions on soil organic carbon sequestration Predicting landscape effects of Mississippi River diversions on soil organic carbon sequestration
It contains supporting data from the wetland morphology modeling to support the analysis on the landscape effects of Mississippi River diversions in the context of sea-level rise on soil organic carbon (SOC) sequestration along coastal Louisiana wetlands.
Plant biomass, carbon content, decomposition, and soil greenhouse gas fluxes to support carbon budget development for a created salt marsh in eastern North Carolina, USA Plant biomass, carbon content, decomposition, and soil greenhouse gas fluxes to support carbon budget development for a created salt marsh in eastern North Carolina, USA
These data were collected from a small (14 ha), created salt marsh in Carteret County, North Carolina (34.82 deg. N; 76.61 deg. W). This site was created in 2007 following an engineering plan developed by Dr. Michael Burchell (NC-State University). This data collection was to support the development of a site-specific carbon budget. Data were collected from 2011 to 2013, or approximately...
Surface elevation change (VLMw) and vertical accretion data from created mangroves in Tampa Bay, Florida, USA (2011-2016) Surface elevation change (VLMw) and vertical accretion data from created mangroves in Tampa Bay, Florida, USA (2011-2016)
These data represent surface elevation change (or "Vertical Land Motion of the Wetland": VLMw) and vertical accretion time series collected from a series of created tidal wetland sites in the Tampa Bay watershed, Florida, USA. VLMw was measured using a combination of rod Surface Elevation Tables (RSETs), shallow root-zone SETs, and feldspar marker horizons. Sites were created and planted...
Filter Total Items: 195
Soil salinity and water level interact to generate tipping points in low salinity tidal wetlands responding to climate change Soil salinity and water level interact to generate tipping points in low salinity tidal wetlands responding to climate change
Low salinity tidal wetlands (LSTW) are vulnerable to sea level rise and saltwater intrusion, thus their carbon sequestration capacity is threatened. However, the thresholds of rapid changes in carbon dynamics and biogeochemical processes in LSTW due to changes in hydroperiod and salinity regime remain unclear. In this study, we examined the effects of soil porewater salinity and water...
Authors
Hongqing Wang, Ken Krauss, Gregory Noe, Zhaohua Dai, Carl Trettin
Presence of hummock and hollow microtopography reflects shifting balances of shallow subsidence and root zone expansion along forested wetland river gradients Presence of hummock and hollow microtopography reflects shifting balances of shallow subsidence and root zone expansion along forested wetland river gradients
Tidal freshwater forested wetlands (TFFWs) are in an active phase of transition to tidal marsh with sea level rise and salinity incursion along the Atlantic and Gulf Coasts of the United States (U.S.). A prominent feature of TFFWs is hummock/hollow microtopography where hollows represent the flat, base-elevation of the floodplain where inundation occurs relatively frequently, while...
Authors
Ken Krauss, Gregory Noe, Jamie A. Duberstein, Nicole Cormier, Andrew From, Thomas Doody, William Conner, Donald Cahoon, Darren Johnson
Rapidly changing range limits in a warming world: Critical data limitations and knowledge gaps for advancing understanding of mangrove range dynamics in the southeastern USA Rapidly changing range limits in a warming world: Critical data limitations and knowledge gaps for advancing understanding of mangrove range dynamics in the southeastern USA
Climate change is altering species’ range limits and transforming ecosystems. For example, warming temperatures are leading to the range expansion of tropical, cold-sensitive species at the expense of their cold-tolerant counterparts. In some temperate and subtropical coastal wetlands, warming winters are enabling mangrove forest encroachment into salt marsh, which is a major regime...
Authors
Remi Bardou, Michael Osland, Steven Scyphers, Christine C. Shepard, Karen Aerni, Jahson Alemu, Robert Crimian, Richard Day, Nicholas Enwright, Laura Feher, Sarah Gibbs, Kiera O’Donnell, Savannah Swinea, Kalaina Thorne, Sarit Truskey, Anna Armitage, Ronald J. Baker, Joshua Breithaupt, Kyle Cavanaugh, Just Cebrian, Karen Cummins, Donna Devlin, Jacob Doty, William Ellis, Ilka Feller, Christopher A. Gabler, Yiyang Kang, David Kaplan, John Kennedy, Ken Krauss, Margaret Lamont, Kam-biu Liu, Melinda Martinez, Ashley Matheny, Giovanna McClenachan, Karen McKee, Irving Mendelssohn, Thomas Michot, Christopher J. Miller, Jena Moon, Ryan Moyer, James A. Nelson, Richard O’Connor, James Pahl, Jonathan Pitchford, C. Edward Proffitt, Tracy Quirk, Kara Radabaugh, Whitney Scheffel, Delbert Smee, Caitlin Snyder, Eric Sparks, Kathleen M. Swanson, William Vervaeke, Carolyn Weaver, Jonathan A Willis, Erik Yando, Qiang Yao, A. Hughes
Modeling impacts of saltwater intrusion on methane and nitrous oxide emissions in tidal forested wetlands Modeling impacts of saltwater intrusion on methane and nitrous oxide emissions in tidal forested wetlands
Emissions of methane (CH4) and nitrous oxide (N2O) from soils to the atmosphere can offset the benefits of carbon sequestration for climate change mitigation. While past study has suggested that both CH4 and N2O emissions from tidal freshwater forested wetlands (TFFW) are generally low, the impacts of coastal droughts and drought-induced saltwater intrusion on CH4 and N2O emissions...
Authors
Hongqing Wang, Zhaohua Dai, Ken Krauss, Carl Trettin, Gregory Noe, Andrew Burton, Eric Ward
Changes in mangrove blue carbon under elevated atmospheric CO2 Changes in mangrove blue carbon under elevated atmospheric CO2
While there is consensus that blue carbon ecosystems, such as mangroves, have an important role in mitigating some aspects of global climate change, little is known about mangrove carbon cycling under elevated atmospheric CO2 concentrations (eCO2). Here, we review studies in order to identify pathways for how eCO2 might influence mangrove ecosystem carbon cycling. In general, eCO2 alters...
Authors
Xiaoxuan Gu, Peiyang Qiao, Ken Krauss, Catherine Lovelock, Janine Adams, Samantha Chapman, Tim Jennerjahn, Qiulian Lin, Luzhen Chen
Framework for facilitating mangrove recovery after hurricanes on Caribbean islands Framework for facilitating mangrove recovery after hurricanes on Caribbean islands
Mangrove ecosystems in the Caribbean are frequently exposed to hurricanes, leading to structural and regenerative change that elicit calls for recovery action. For those mangroves unaffected by human modifications, recovery can occur naturally. Indeed, observable natural recovery after hurricanes is the genesis of the “disturbance adaptation” classification for mangroves; while...
Authors
Ken Krauss, Kevin Whelan, John Kennedy, Daniel Friess, Caroline Rogers, Heather Stewart, Kristin Grimes, Camilo Trench, Danielle Ogurcak, Catherine Toline, Lianne Ball, Andrew From
Mangrove reforestation provides greater blue carbon benefit than afforestation for mitigating global climate change Mangrove reforestation provides greater blue carbon benefit than afforestation for mitigating global climate change
Significant efforts have been invested to restore mangrove forests worldwide through reforestation and afforestation. However, blue carbon benefit has not been compared between these two silvicultural pathways at the global scale. Here, we integrated results from direct field measurements of over 370 restoration sites around the world to show that mangrove reforestation (reestablishing...
Authors
Shanshan Song, Yali Ding, Wei Li, Yuchen Meng, Jianping Zhou, Ruikun Gou, Conghe Zhang, Shengbin Ye, Neil Saintilan, Ken Krauss, Stephen Crooks, Shuguo Lv, Guanghui Lin
Response of soil respiration to changes in soil temperature and water table level in drained and restored peatlands of the southeastern United States Response of soil respiration to changes in soil temperature and water table level in drained and restored peatlands of the southeastern United States
Extensive drainage of peatlands in the southeastern United States coastal plain for the purposes of agriculture and timber harvesting has led to large releases of soil carbon as carbon dioxide (CO2) due to enhanced peat decomposition. Growth in mechanisms that provide financial incentives for reducing emissions from land use and land-use change could increase funding for hydrological...
Authors
Erin Swails, Marcelo Ardon, Ken Krauss, A.L. Peralta, Ryan Emmanuel, A.M. Helton, J.L. Morse, Laurel Gutenberg, Nicole Cormier, D. Shoch, Scott Settlemyer, Eric Soderholm, Brian Boutin, Chuck Peoples, Sara Ward
Biophysical warming patterns of an open-top chamber and its short-term influence on a Phragmites wetland ecosystem in China Biophysical warming patterns of an open-top chamber and its short-term influence on a Phragmites wetland ecosystem in China
Passive-warming, open-top chambers (OTCs) are widely applied for studying the effects of future climate warming on coastal wetlands. In this study, a set of six OTCs were established at a Phragmites wetland located in the Yellow River Delta of Dongying City, China. With data collected through online transmission and in-situ sensors, the attributes and patterns of realized OTCs warming...
Authors
Xue-yang Yu, Si-yuan Ye, Li-xin Pei, Liu-juan Xie, Ken Krauss, Samantha Chapman, Hans Brix
Mangroves provide blue carbon ecological value at a low freshwater cost Mangroves provide blue carbon ecological value at a low freshwater cost
“Blue carbon” wetland vegetation has a limited freshwater requirement. One type, mangroves, utilizes less freshwater during transpiration than adjacent terrestrial ecoregions, equating to only 43% (average) to 57% (potential) of evapotranspiration ( ET). Here, we demonstrate that comparative consumptive water use by mangrove vegetation is as much as 2905 kL H2O ha−1 year−1 less than...
Authors
Ken Krauss, Catherine Lovelock, Luzhen Chen, Uta Berger, Marilyn Ball, Ruth Reef, Ronny Peters, Hannah Bowen, Alejandra Vovides, Eric Ward, Marie-Christin Wimmler, Joel A. Carr, Pete Bunting, Jamie A. Duberstein
Hydrologic restoration decreases greenhouse gas emissions from shrub bog peatlands in southeastern US Hydrologic restoration decreases greenhouse gas emissions from shrub bog peatlands in southeastern US
Peatlands play a disproportionate role in the global carbon cycle. However, many peatlands have been ditched to lower the water table and converted into agriculture, which contributes to anthropogenic greenhouse gas emissions. Hydrologic restoration of drained peatlands could offset greenhouse gas emissions from these actions, but field examples that consider various greenhouse gases are...
Authors
Luise Armstrong, Ariane Peralta, Ken Krauss, N. Cormier, Rebecca Moss, Eric Soderholm, Aaron McCall, Christine Pickens, Marcelo Ardon
Mangrove Wetlands Mangrove Wetlands
No abstract available.
Authors
Robert Twilley, Andre Rovai, Ken Krauss
Non-USGS Publications**
Kumara, M.P., L.P. Jayatissa, K.W. Krauss, D.H. Phillips, & M. Huxham. 2010. High mangrove density enhances surface accretion, surface elevation change, and tree survival in coastal areas susceptible to sea-level rise. Oecologia 164: 545-553.
Huxham, M., M. Kumara, L. Jayatissa, K.W. Krauss, J. Kairo, J. Langat, M. Mencuccini, M. Skov & B. Kirui. 2010. Intra and inter-specific facilitation in mangroves may increase resilience to climate change threats. Philosophical Transactions of the Royal Society of London B 365: 2127-2135.
Krauss, K.W. 2009. Mangrove energetics. Ecology 90: 3588-3589. [book review]
Krauss, K.W., C.E. Lovelock, K.L. McKee, L. López-Hoffman, S.M.L. Ewe & W.P. Sousa. 2008. Environmental drivers in mangrove establishment and early development: a review. Aquatic Botany 89: 105-127.
Conner, W.H., T.W. Doyle & K.W. Krauss, Eds., 2007. Ecology of Tidal Freshwater Forested Wetlands of the Southeastern United States. Springer. 505 p.
Krauss, K.W., J.L. Chambers & D. Creech. 2007. Selection for salt tolerance in tidal freshwater swamp species: advances using baldcypress as a model for restoration. Pages 385-410 in W.H. Conner, T.W. Doyle, K.W. Krauss (eds.), Ecology of Tidal Freshwater Forested Wetlands of the Southeastern United States. Springer. 505 p.
Conner W.H., K.W. Krauss & T.W. Doyle. 2007. Ecology of tidal freshwater forests in coastal deltaic Louisiana and northeastern South Carolina. Pages 223-253 in W.H. Conner, T.W. Doyle, K.W. Krauss (eds.), Ecology of Tidal Freshwater Forested Wetlands of the Southeastern United States. Springer. 505 p.
Conner, W.H., C.T. Hackney, K.W. Krauss & J.W. Day, Jr. 2007. Tidal freshwater forested wetlands: future research needs and an overview of restoration. Pages 461-485 in W.H. Conner, T.W. Doyle, K.W. Krauss (eds.), Ecology of Tidal Freshwater Forested Wetlands of the Southeastern United States. Springer. 505 p.
Gardiner, E.S. & K.W. Krauss. 2001. Photosynthetic light response of flooded cherrybark oak (Quercus pagoda) seedlings grown in two light regimes. Tree Physiology 21: 1103-1111.
Krauss, K.W., R.A. Goyer, J.A. Allen & J.L. Chambers. 2000. Tree shelters effective in coastal swamp restoration (Louisiana). Ecological Restoration18: 200-201.
Allen, J.A., K.W. Krauss, N.C. Duke, O. Björkman, D.R. Herbst & C. Shih. 2000. Bruguiera species in Hawai’i: systematic considerations and ecological implications. Pacific Science 54: 331-343.
Doyle, T.W. & K.W. Krauss. 1999. The sands and sambars of St. Vincent Island. Florida Wildlife 53: 22-25.
Krauss, K.W., J.L. Chambers & J.A. Allen. 1998. Salinity effects and differential germination of several half-sib families of baldcypress from different seed sources. New Forests 15: 53-68.
Allen, J.A., W.H. Conner, R.A. Goyer, J.L. Chambers & K.W. Krauss. 1998. Chapter 4: Freshwater forested wetlands and global climate change. Pages 33-44 in G.R. Guntenspergen and B.A Vairin (eds.), Vulnerability of coastal wetlands in the Southeastern United States: climate change research results, 1992-97. U.S. Geological Survey, Biological Resources Division Biological Science Report USGS/BRD/BSR-1998-0002. 101 p.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.