Richard Day
Richard Day is a Geographer at the USGS Wetland and Aquatic Research Center.
Science and Products
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Climatic controls on the global distribution, abundance, and species richness of mangrove forests
Mangrove forests are highly productive tidal saline wetland ecosystems found along sheltered tropical and subtropical coasts. Ecologists have long assumed that climatic drivers (i.e., temperature and rainfall regimes) govern the global distribution, structure, and function of mangrove forests. However, data constraints have hindered the quantification of direct climate-mangrove linkages in many pa
Authors
Michael J. Osland, Laura C. Feher, Kereen Griffith, Kyle C. Cavanaugh, Nicholas M. Enwright, Richard H. Day, Camille L. Stagg, Ken W. Krauss, Rebecca J. Howard, James B. Grace, Kerrylee Rogers
Hydrologic restoration in a dynamic subtropical mangrove-to-marsh ecotone
Extensive hydrologic modifications in coastal regions across the world have occurred to support infrastructure development, altering the function of many coastal wetlands. Wetland restoration success is dependent on the existence of hydrologic regimes that support development of appropriate soils and the growth and persistence of wetland vegetation. In Florida, United States, the Comprehensive Eve
Authors
Rebecca J. Howard, Richard H. Day, Ken W. Krauss, Andrew S. From, Larry K. Allain, Nicole Cormier
Mangrove expansion and contraction at a poleward range limit: Climate extremes and land-ocean temperature gradients
Within the context of climate change, there is a pressing need to better understand the ecological implications of changes in the frequency and intensity of climate extremes. Along subtropical coasts, less frequent and warmer freeze events are expected to permit freeze-sensitive mangrove forests to expand poleward and displace freeze-tolerant salt marshes. Here, our aim was to better understand th
Authors
Michael J. Osland, Richard H. Day, Courtney T. Hall, Marisa D Brumfield, Jason Dugas, William R. Jones
Salt marsh-mangrove ecotones: using structural gradients to investigate the effects of woody plant encroachment on plant-soil interactions and ecosystem carbon pools
Changing winter climate extremes are expected to result in the poleward migration of mangrove forests at the expense of salt marshes. Although mangroves and marshes are both highly valued ecosystems, the ecological implications of mangrove expansion have not been fully investigated.
Here, we examined the effects of mangrove expansion on below-ground properties related to peat development and carb
Authors
Erik S. Yando, Michael J. Osland, Jonathan M Willis, Richard H. Day, Ken W. Krauss, Mark W. Hester
Impacts of climate change on mangrove ecosystems: A region by region overview
Inter-related and spatially variable climate change factors including sea level rise, increased storminess, altered precipitation regime and increasing temperature are impacting mangroves at regional scales. This review highlights extreme regional variation in climate change threats and impacts, and how these factors impact the structure of mangrove communities, their biodiversity and geomorpholog
Authors
Raymond D. Ward, Daniel A. Friess, Richard H. Day, Richard A. MacKenzie
Life stage influences the resistance and resilience of black mangrove forests to winter climate extremes
In subtropical coastal wetlands on multiple continents, climate change-induced reductions in the frequency and intensity of freezing temperatures are expected to lead to the expansion of woody plants (i.e., mangrove forests) at the expense of tidal grasslands (i.e., salt marshes). Since some ecosystem goods and services would be affected by mangrove range expansion, there is a need to better under
Authors
Michael J. Osland, Richard H. Day, Andrew S. From, Megan L. McCoy, Jennie L. McLeod, Jeffrey Kelleway
Beyond just sea-level rise: Considering macroclimatic drivers within coastal wetland vulnerability assessments to climate change
Due to their position at the land-sea interface, coastal wetlands are vulnerable to many aspects of climate change. However, climate change vulnerability assessments for coastal wetlands generally focus solely on sea-level rise without considering the effects of other facets of climate change. Across the globe and in all ecosystems, macroclimatic drivers (e.g., temperature and rainfall regimes) gr
Authors
Michael J. Osland, Nicholas M. Enwright, Richard H. Day, Christopher A. Gabler, Camille L. Stagg, James B. Grace
Plant-plant interactions in a subtropical mangrove-to-marsh transition zone: effects of environmental drivers
Questions
Does the presence of herbaceous vegetation affect the establishment success of mangrove tree species in the transition zone between subtropical coastal mangrove forests and marshes? How do plant–plant interactions in this transition zone respond to variation in two primary coastal environmental drivers?
Location
Subtropical coastal region of the southern United States.
Methods
Authors
Rebecca J. Howard, Ken W. Krauss, Nicole Cormier, Richard H. Day, Janelda M. Biagas, Larry K. Allain
Aboveground allometric models for freeze-affected black mangroves (Avicennia germinans): Equations for a climate sensitive mangrove-marsh ecotone
Across the globe, species distributions are changing in response to climate change and land use change. In parts of the southeastern United States, climate change is expected to result in the poleward range expansion of black mangroves (Avicennia germinans) at the expense of some salt marsh vegetation. The morphology of A. germinans at its northern range limit is more shrub-like than in tropical c
Authors
Michael J. Osland, Richard H. Day, Jack C. Larriviere, Andrew S. From
Final Project Memorandum: Ecological implications of mangrove forest migration in the southeastern U.S.
Winter climate change has the potential to have a large impact on coastal wetlands in the southeastern United States. Warmer winter temperatures and reductions in the intensity of freeze events would likely lead to mangrove forest range expansion and salt marsh displacement in parts of the U.S. Gulf of Mexico and Atlantic coast. The objective of this research was to better evaluate the ecological
Authors
Michael J. Osland, Richard H. Day, Ken W. Krauss, Andrew S. From, Jack C. Larriviere, Mark W. Hester, Erik S. Yando, Jonathan A Willis
Global climate change impacts on coastal ecosystems in the Gulf of Mexico: Considerations for integrated coastal management
Global climate change is important in considerations of integrated coastal management in the Gulf of Mexico. This is true for a number of reasons. Climate in the Gulf spans the range from tropical to the lower part of the temperate zone. Thus, as climate warms, the tropical temperate interface, which is currently mostly offshore in the Gulf of Mexico, will increasingly move over the coastal zone o
Authors
John W. Day, Alejandro Yáñez-Arancibia, James H. Cowan, Richard H. Day, Robert R. Twilley, John R. Rybczyk
Winter climate change and coastal wetland foundation species: Salt marshes vs. mangrove forests in the southeastern United States
We live in an era of unprecedented ecological change in which ecologists and natural resource managers are increasingly challenged to anticipate and prepare for the ecological effects of future global change. In this study, we investigated the potential effect of winter climate change upon salt marsh and mangrove forest foundation species in the southeastern United States. Our research addresses t
Authors
Michael J. Osland, Richard H. Day, Thomas W. Doyle, Nicholas Enwright
Science and Products
Filter Total Items: 16
No Result Found
Filter Total Items: 50
Climatic controls on the global distribution, abundance, and species richness of mangrove forests
Mangrove forests are highly productive tidal saline wetland ecosystems found along sheltered tropical and subtropical coasts. Ecologists have long assumed that climatic drivers (i.e., temperature and rainfall regimes) govern the global distribution, structure, and function of mangrove forests. However, data constraints have hindered the quantification of direct climate-mangrove linkages in many pa
Authors
Michael J. Osland, Laura C. Feher, Kereen Griffith, Kyle C. Cavanaugh, Nicholas M. Enwright, Richard H. Day, Camille L. Stagg, Ken W. Krauss, Rebecca J. Howard, James B. Grace, Kerrylee Rogers
Hydrologic restoration in a dynamic subtropical mangrove-to-marsh ecotone
Extensive hydrologic modifications in coastal regions across the world have occurred to support infrastructure development, altering the function of many coastal wetlands. Wetland restoration success is dependent on the existence of hydrologic regimes that support development of appropriate soils and the growth and persistence of wetland vegetation. In Florida, United States, the Comprehensive Eve
Authors
Rebecca J. Howard, Richard H. Day, Ken W. Krauss, Andrew S. From, Larry K. Allain, Nicole Cormier
Mangrove expansion and contraction at a poleward range limit: Climate extremes and land-ocean temperature gradients
Within the context of climate change, there is a pressing need to better understand the ecological implications of changes in the frequency and intensity of climate extremes. Along subtropical coasts, less frequent and warmer freeze events are expected to permit freeze-sensitive mangrove forests to expand poleward and displace freeze-tolerant salt marshes. Here, our aim was to better understand th
Authors
Michael J. Osland, Richard H. Day, Courtney T. Hall, Marisa D Brumfield, Jason Dugas, William R. Jones
Salt marsh-mangrove ecotones: using structural gradients to investigate the effects of woody plant encroachment on plant-soil interactions and ecosystem carbon pools
Changing winter climate extremes are expected to result in the poleward migration of mangrove forests at the expense of salt marshes. Although mangroves and marshes are both highly valued ecosystems, the ecological implications of mangrove expansion have not been fully investigated.
Here, we examined the effects of mangrove expansion on below-ground properties related to peat development and carb
Authors
Erik S. Yando, Michael J. Osland, Jonathan M Willis, Richard H. Day, Ken W. Krauss, Mark W. Hester
Impacts of climate change on mangrove ecosystems: A region by region overview
Inter-related and spatially variable climate change factors including sea level rise, increased storminess, altered precipitation regime and increasing temperature are impacting mangroves at regional scales. This review highlights extreme regional variation in climate change threats and impacts, and how these factors impact the structure of mangrove communities, their biodiversity and geomorpholog
Authors
Raymond D. Ward, Daniel A. Friess, Richard H. Day, Richard A. MacKenzie
Life stage influences the resistance and resilience of black mangrove forests to winter climate extremes
In subtropical coastal wetlands on multiple continents, climate change-induced reductions in the frequency and intensity of freezing temperatures are expected to lead to the expansion of woody plants (i.e., mangrove forests) at the expense of tidal grasslands (i.e., salt marshes). Since some ecosystem goods and services would be affected by mangrove range expansion, there is a need to better under
Authors
Michael J. Osland, Richard H. Day, Andrew S. From, Megan L. McCoy, Jennie L. McLeod, Jeffrey Kelleway
Beyond just sea-level rise: Considering macroclimatic drivers within coastal wetland vulnerability assessments to climate change
Due to their position at the land-sea interface, coastal wetlands are vulnerable to many aspects of climate change. However, climate change vulnerability assessments for coastal wetlands generally focus solely on sea-level rise without considering the effects of other facets of climate change. Across the globe and in all ecosystems, macroclimatic drivers (e.g., temperature and rainfall regimes) gr
Authors
Michael J. Osland, Nicholas M. Enwright, Richard H. Day, Christopher A. Gabler, Camille L. Stagg, James B. Grace
Plant-plant interactions in a subtropical mangrove-to-marsh transition zone: effects of environmental drivers
Questions
Does the presence of herbaceous vegetation affect the establishment success of mangrove tree species in the transition zone between subtropical coastal mangrove forests and marshes? How do plant–plant interactions in this transition zone respond to variation in two primary coastal environmental drivers?
Location
Subtropical coastal region of the southern United States.
Methods
Authors
Rebecca J. Howard, Ken W. Krauss, Nicole Cormier, Richard H. Day, Janelda M. Biagas, Larry K. Allain
Aboveground allometric models for freeze-affected black mangroves (Avicennia germinans): Equations for a climate sensitive mangrove-marsh ecotone
Across the globe, species distributions are changing in response to climate change and land use change. In parts of the southeastern United States, climate change is expected to result in the poleward range expansion of black mangroves (Avicennia germinans) at the expense of some salt marsh vegetation. The morphology of A. germinans at its northern range limit is more shrub-like than in tropical c
Authors
Michael J. Osland, Richard H. Day, Jack C. Larriviere, Andrew S. From
Final Project Memorandum: Ecological implications of mangrove forest migration in the southeastern U.S.
Winter climate change has the potential to have a large impact on coastal wetlands in the southeastern United States. Warmer winter temperatures and reductions in the intensity of freeze events would likely lead to mangrove forest range expansion and salt marsh displacement in parts of the U.S. Gulf of Mexico and Atlantic coast. The objective of this research was to better evaluate the ecological
Authors
Michael J. Osland, Richard H. Day, Ken W. Krauss, Andrew S. From, Jack C. Larriviere, Mark W. Hester, Erik S. Yando, Jonathan A Willis
Global climate change impacts on coastal ecosystems in the Gulf of Mexico: Considerations for integrated coastal management
Global climate change is important in considerations of integrated coastal management in the Gulf of Mexico. This is true for a number of reasons. Climate in the Gulf spans the range from tropical to the lower part of the temperate zone. Thus, as climate warms, the tropical temperate interface, which is currently mostly offshore in the Gulf of Mexico, will increasingly move over the coastal zone o
Authors
John W. Day, Alejandro Yáñez-Arancibia, James H. Cowan, Richard H. Day, Robert R. Twilley, John R. Rybczyk
Winter climate change and coastal wetland foundation species: Salt marshes vs. mangrove forests in the southeastern United States
We live in an era of unprecedented ecological change in which ecologists and natural resource managers are increasingly challenged to anticipate and prepare for the ecological effects of future global change. In this study, we investigated the potential effect of winter climate change upon salt marsh and mangrove forest foundation species in the southeastern United States. Our research addresses t
Authors
Michael J. Osland, Richard H. Day, Thomas W. Doyle, Nicholas Enwright