Karen Thorne, Ph.D.
Dr. Karen Thorne is a Research Ecologist with the USGS Western Ecological Research Center,
Her research expertise is on coastal ecosystems and understanding ecosystem services, wetland ecology and restoration, impacts from inundation and storms, and nature-based solutions. She received her Ph.D. and MS from the University of California, Davis.
Dr. Thorne's interests lie in conservation and management issues surrounding coastal ecosystems within a changing environment and management landscape. The research she conducts is critical to understanding the role that coastal ecosystems provide, both environmentally and economically. The research she conducts specifically helps guide Federal, State, and local landowners and managers in planning for more resilient and adaptable habitats; assists in informing the impacts or benefits needed to maintain ecosystem values; and provides methods and tools that identify and help landowners and regulators improve the restoration needed to off-set anthropogenic impacts in coastal environments. Current research focuses include assessing flooding impacts to mangrove and marsh ecosystem processes. Also, understanding ecological processes for marsh, mangrove, and seagrass restoration to inform management in the U.S. and South Pacific islands. Her research is based on field data collection methods that can be used to inform decision-making for managing emerging concerns.
Professional Experience
Research Ecologist, USGS, Western Ecological Research Center, Davis Field Station, 2012 - present
Biologist, USGS, Western Ecological Research Center, San Francisco Bay Estuary Field Station, 2005 to 2012
Research Associate, U.S. Fish & Wildlife Service, Fairbanks, AK, 2002 to 2005
Education and Certifications
PhD, Geography, Global Change, University of California, Davis, 2012
MS, Geography, Environmental Studies, University of California, Davis, 2008
BS, Wildlife, Fish, & Conservation Biology, University of California, Davis 2000
Affiliations and Memberships*
California Landscape Conservation Cooperative Science Team
Science and Products
Wetlands in intermittently closed estuaries can build elevations to keep pace with sea-level rise Wetlands in intermittently closed estuaries can build elevations to keep pace with sea-level rise
Distribution, abundance, and genomic diversity of the endangered antioch dunes evening primrose (Oenothera deltoides subsp. howellii) surveyed in 2019 Distribution, abundance, and genomic diversity of the endangered antioch dunes evening primrose (Oenothera deltoides subsp. howellii) surveyed in 2019
Mangrove species’ response to sea-level rise across Pohnpei, Federated States of Micronesia Mangrove species’ response to sea-level rise across Pohnpei, Federated States of Micronesia
Seasonal impoundment alters patterns of tidal wetland plant diversity across spatial scales Seasonal impoundment alters patterns of tidal wetland plant diversity across spatial scales
Waterfowl use of wetland habitats informs wetland restoration designs for multi‐species benefits Waterfowl use of wetland habitats informs wetland restoration designs for multi‐species benefits
Short-term impact of sediment addition on plants and invertebrates in a southern California salt marsh Short-term impact of sediment addition on plants and invertebrates in a southern California salt marsh
Salinity and inundation effects on productivity of brackish tidal marsh plants in the San Francisco Bay-Delta Estuary Salinity and inundation effects on productivity of brackish tidal marsh plants in the San Francisco Bay-Delta Estuary
Testing the interactive effects of flooding and salinity on tidal marsh plant productivity Testing the interactive effects of flooding and salinity on tidal marsh plant productivity
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
Effects of elevated sea levels and waves on southern California estuaries during the 2015–2016 El Niño Effects of elevated sea levels and waves on southern California estuaries during the 2015–2016 El Niño
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 tidal marsh trajectories: Evaluation of multiple indicators of marsh persistence Understanding tidal marsh trajectories: Evaluation of multiple indicators of marsh persistence
Science and Products
Wetlands in intermittently closed estuaries can build elevations to keep pace with sea-level rise Wetlands in intermittently closed estuaries can build elevations to keep pace with sea-level rise
Distribution, abundance, and genomic diversity of the endangered antioch dunes evening primrose (Oenothera deltoides subsp. howellii) surveyed in 2019 Distribution, abundance, and genomic diversity of the endangered antioch dunes evening primrose (Oenothera deltoides subsp. howellii) surveyed in 2019
Mangrove species’ response to sea-level rise across Pohnpei, Federated States of Micronesia Mangrove species’ response to sea-level rise across Pohnpei, Federated States of Micronesia
Seasonal impoundment alters patterns of tidal wetland plant diversity across spatial scales Seasonal impoundment alters patterns of tidal wetland plant diversity across spatial scales
Waterfowl use of wetland habitats informs wetland restoration designs for multi‐species benefits Waterfowl use of wetland habitats informs wetland restoration designs for multi‐species benefits
Short-term impact of sediment addition on plants and invertebrates in a southern California salt marsh Short-term impact of sediment addition on plants and invertebrates in a southern California salt marsh
Salinity and inundation effects on productivity of brackish tidal marsh plants in the San Francisco Bay-Delta Estuary Salinity and inundation effects on productivity of brackish tidal marsh plants in the San Francisco Bay-Delta Estuary
Testing the interactive effects of flooding and salinity on tidal marsh plant productivity Testing the interactive effects of flooding and salinity on tidal marsh plant productivity
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
Effects of elevated sea levels and waves on southern California estuaries during the 2015–2016 El Niño Effects of elevated sea levels and waves on southern California estuaries during the 2015–2016 El Niño
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 tidal marsh trajectories: Evaluation of multiple indicators of marsh persistence Understanding tidal marsh trajectories: Evaluation of multiple indicators of marsh persistence
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government