Publications
Listed here are publications, reports and articles by the Land Change Science Program in the USGS Ecosystems Mission Area.
Filter Total Items: 1145
Impacts of seagrass dynamics on the coupled long-term evolution of barrier-marsh-bay systems Impacts of seagrass dynamics on the coupled long-term evolution of barrier-marsh-bay systems
Seagrass provides a wide range of economically and ecologically valuable ecosystem services, with shoreline erosion control often listed as a key service, but can also alter the sediment dynamics and waves within back-barrier bays. Here we incorporate seagrass dynamics into an existing barrier-marsh exploratory model, GEOMBEST++, to examine the coupled interactions of the back-barrier...
Authors
Ian Reeves, Laura Moore, Evan Goldstein, Brad Murray, Joel A. Carr, Matthew Kirwan
Rapid peat development beneath created, maturing mangrove forests: Ecosystem changes across a 25-year chronosequence Rapid peat development beneath created, maturing mangrove forests: Ecosystem changes across a 25-year chronosequence
Mangrove forests are among the world’s most productive and carbon‐rich ecosystems. Despite growing understanding of factors controlling mangrove forest soil carbon stocks, there is a need to advance understanding of the speed of peat development beneath maturing mangrove forests— especially in created and restored mangrove forests that are intended to compensate for ecosystem functions...
Authors
Michael Osland, Laura Feher, Amanda Spivak, Janet Nestlerode, Alejandro Almario, Nicole Cormier, Andrew From, Ken Krauss, Marc Russell, Federico Alvarez, Darrin Dantin, James Harvey, Camille Stagg
Spatiotemporal patterns of mineral and organic matter deposition across two San Francisco Bay-Delta tidal marshes Spatiotemporal patterns of mineral and organic matter deposition across two San Francisco Bay-Delta tidal marshes
Sediment deposition in tidal wetlands is a critical process that determines whether vertical growth will keep pace with sea-level rise. However, more information is needed on how sediment deposition varies spatially and temporally across wetlands, including the effects of elevation, tidal inundation, vegetation, and weather. We investigated variation in sediment deposition due to season...
Authors
Kevin Buffington, Christopher Janousek, Karen M. Thorne, Bruce Dugger
Tidal wetland gross primary production across the continental United States, 2000–2019 Tidal wetland gross primary production across the continental United States, 2000–2019
We mapped tidal wetland gross primary production (GPP) with unprecedented detail for multiple wetland types across the continental United States (CONUS) at 16‐day intervals for the years 2000–2019. To accomplish this task, we developed the spatially explicit Blue Carbon (BC) model, which combined tidal wetland cover and field‐based eddy covariance tower data into a single Bayesian...
Authors
R.A. Feagin, I. Forbrich, T. Huff, J.G. Barr, J. Ruiz-Plancarte, J.D. Fuentes, R.G. Najjar, R. Vargas, A. Vazquez Lule, L. Windham-Myers, Kevin Kroeger, E. Ward, G. Moore, M. Leclerc, K. W. Krauss, C.L. Stagg, M. Alber, S. Knox, K. Schafer, T.S. Bianchi, J. A. Hutchings, H. Nahrawi, A. Noormets, B. Mitra, A. Jaimes, A.L. Hinson, Brian Bergamaschi, J.S. King, G. Miao
Tree mortality in blue oak woodland during extreme drought in Sequoia National Park, California Tree mortality in blue oak woodland during extreme drought in Sequoia National Park, California
Blue oak woodlands in California have been a focus of conservation concern for many years. Numerous studies have found that existing seedling and sapling numbers are inadequate to sustain current populations, and recent work has suggested that blue oak woodlands might be particularly vulnerable to a warming climate. California has recently experienced a drought of historically...
Authors
Adrian J. Das, Nicholas Ampersee, Anne Pfaff, Nathan Stephenson, Tedmund Swiecki, Elizabeth Bernhardt, Patricia Haggerty, Koren Nydick
Fire history across forest types in the southern Beartooth Mountains, Wyoming Fire history across forest types in the southern Beartooth Mountains, Wyoming
Fire is a critical ecosystem process that has played a key role in shaping forests throughout the Beartooth Mountains in northwestern Wyoming. The highly variable topography of the area provides ideal conditions to compare fire regimes across contiguous forest types, yet pyro-dendrochronological research in this area is limited. We reconstructed fire frequency, tree age structure, and...
Authors
Sabrina R. Brown, Ashley Baysinger, Peter Brown, Justin Cheek, Jeffrey Diez, Christopher Gentry, Thomas Grant, Jeannine-Marie St-Jacques, David A. Jordan, Morgan Leef, Mary Rourke, James Speer, Carrie Spradlin, Jens Stevens, Jeffery Stone, Brian Van Winkle, Nickolas Zeibig-Kichas
Disentangling the potential effects of land-use and climate change on stream conditions Disentangling the potential effects of land-use and climate change on stream conditions
Land‐use and climate change are significantly affecting stream ecosystems, yet understanding of their long‐term impacts is hindered by the few studies that have simultaneously investigated their interaction and high variability among future projections. We modeled possible effects of a suite of 2030, 2060, and 2090 land‐use and climate scenarios on the condition of 70,772 small streams...
Authors
Kelly Maloney, Kevin Krause, Claire Buchanan, Lauren Hay, Gregory McCabe, Zachary Smith, Terry Sohl, John Young
Soil surface elevation dynamics in a mangrove-to-marsh ecotone characterized by vegetation shifts Soil surface elevation dynamics in a mangrove-to-marsh ecotone characterized by vegetation shifts
Mangrove forest encroachment into coastal marsh habitats has been described in subtropical regions worldwide in recent decades. To better understand how soil processes may influence vegetation change, we studied soil surface elevation change, accretion rates, and soil subsurface change across a coastal salinity gradient in Florida, USA, an area with documented mangrove encroachment into...
Authors
Rebecca Howard, Andrew From, Ken Krauss, Kimberly Andres, Nicole Cormier, Larry Allain, Michael Savarese
Habitat of the endangered salt marsh harvest mouse (Reithrodontomys raviventris) in San Francisco Bay Habitat of the endangered salt marsh harvest mouse (Reithrodontomys raviventris) in San Francisco Bay
Understanding habitat associations is vital for conservation of at‐risk marsh‐endemic wildlife species, particularly those under threat from sea level rise. We modeled environmental and habitat associations of the marsh‐endemic, Federally endangered salt marsh harvest mouse (Reithrodontomys raviventris, RERA) and co‐occurrence with eight associated small mammal species from annual trap...
Authors
Bruce Marcot, Isa Woo, Karen M. Thorne, Chase Freeman, Glenn Guntenspergen
An open source database for the synthesis of soil radiocarbon data: ISRaD version 1.0 An open source database for the synthesis of soil radiocarbon data: ISRaD version 1.0
Radiocarbon is a critical constraint on our estimates of the timescales of soil carbon cycling that can aid in identifying mechanisms of carbon stabilization and destabilization and improve the forecast of soil carbon response to management or environmental change. Despite the wealth of soil radiocarbon data that have been reported over the past 75 years, the ability to apply these data...
Authors
Corey Lawrence, Jeffrey Beem-Miller, Alison Hoyt, Grey Monroe, Carlos Sierra, Shane Stoner, Katherine Heckman, Joseph Blankinship, Susan Crow, Gavin McNichol, Susan Trumbore, Paul Levine, Olga Vinduskova, Katherine Todd-Brown, Craig Rasmussen, Caitlin Hicks Pries, Christina Schadel, Karis McFarlane, Sebastian Doetterl, Christine Hatte, Yujie He, Claire Treat, Jennifer Harden, Margaret Torn, Cristian Estop-Aragonés, Asmeret Berhe, Marco Keiluweit, Agatha Kuhnen, Erika Marin-Spiotta, Alain Plante, Aaron Thompson, Zheng Shi, Joshua Schimel, Lydia J.S. Vaughn, Sophie von Fromm, Rota Wagai
Patterns of denitrification potential in tidal freshwater forested wetlands Patterns of denitrification potential in tidal freshwater forested wetlands
Limited evidence for spatial patterns of denitrification in tidal freshwater forested wetlands (TFFWs), seemingly due to high spatial variability in the process, is surprising considering the various spatial gradients of its biogeochemical and hydrogeomorphic controls in these ecosystems. Because certain physical environmental gradients may be useful for the prediction of denitrification...
Authors
Alicia Korol, Gregory Noe
Soil microbial communities and global change Soil microbial communities and global change
Soils and soil microbial communities mediate the biogeochemical processes that underly ecosystem-level changes. This chapter examines why soils and soil microbial communities are important for understanding impacts and feedbacks to global change. It discusses the technological approaches and challenges that are at the frontiers of this research area. Global change impacts on microbial...
Authors
Mark Waldrop, Courtney Creamer