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
Wetland Carbon Working Group: Improving Methodologies and Estimates of Carbon and Greenhouse Gas Flux in Wetlands
Sea-level Rise Vulnerability of Mangrove Forests in Micronesia and the Pacific
The Response of Coastal Wetlands to Sea-level Rise: Understanding how Macroscale Drivers Influence Local Processes and Feedbacks
The response of coastal wetlands to sea-level rise: Understanding how macroscale drivers influence local processes and feedbacks
The Impact of Sea-Level Rise on Coral Reef and Mangrove Interactions and the Resulting Coastal Flooding Hazards
Science to Inform the Management of Mangrove Ecosystems Undergoing Sea Level Rise at Ding Darling National Wildlife Refuge, Sanibel Island, Florida
Surface Elevation Table and Marker Horizon Measurements Along the Pacific Coast (ver. 2.0, June 2025) Surface Elevation Table and Marker Horizon Measurements Along the Pacific Coast (ver. 2.0, June 2025)
Waterfowl Brood Drone Surveys from Suisun, California 2019 Waterfowl Brood Drone Surveys from Suisun, California 2019
UAS Whiskeytown UAS Whiskeytown
Soil Characteristics and Accretion Rates in Mangrove Forests across Pohnpei, Federated States of Micronesia Soil Characteristics and Accretion Rates in Mangrove Forests across Pohnpei, Federated States of Micronesia
Marsh Vegetation Surveys Across the San Francisco Bay Estuary, 2008-2018 Marsh Vegetation Surveys Across the San Francisco Bay Estuary, 2008-2018
Estuarine vegetated wetland change scenarios for estuaries in the conterminous United States, 1996–2019 Estuarine vegetated wetland change scenarios for estuaries in the conterminous United States, 1996–2019
Nature-based solutions could offset coastal squeeze of tidal wetlands from sea-level rise on the U.S. Pacific coast Nature-based solutions could offset coastal squeeze of tidal wetlands from sea-level rise on the U.S. Pacific coast
Seasonal and spatial patterns in sediment transport in an erosional marsh system Seasonal and spatial patterns in sediment transport in an erosional marsh system
Surveying waterfowl broods in wetlands using aerial drones Surveying waterfowl broods in wetlands using aerial drones
When and where can coastal wetland restoration increase carbon sequestration as a natural climate solution? When and where can coastal wetland restoration increase carbon sequestration as a natural climate solution?
Projecting mangrove forest resilience to sea-level rise on a Pacific Island: Species dynamics and ecological thresholds Projecting mangrove forest resilience to sea-level rise on a Pacific Island: Species dynamics and ecological thresholds
Bay Miwok evening primrose: A new subspecies of Oenothera deltoides (Onagraceae) endemic to California Bay Miwok evening primrose: A new subspecies of Oenothera deltoides (Onagraceae) endemic to California
Science and Products
Wetland Carbon Working Group: Improving Methodologies and Estimates of Carbon and Greenhouse Gas Flux in Wetlands
Sea-level Rise Vulnerability of Mangrove Forests in Micronesia and the Pacific
The Response of Coastal Wetlands to Sea-level Rise: Understanding how Macroscale Drivers Influence Local Processes and Feedbacks
The response of coastal wetlands to sea-level rise: Understanding how macroscale drivers influence local processes and feedbacks
The Impact of Sea-Level Rise on Coral Reef and Mangrove Interactions and the Resulting Coastal Flooding Hazards
Science to Inform the Management of Mangrove Ecosystems Undergoing Sea Level Rise at Ding Darling National Wildlife Refuge, Sanibel Island, Florida
Surface Elevation Table and Marker Horizon Measurements Along the Pacific Coast (ver. 2.0, June 2025) Surface Elevation Table and Marker Horizon Measurements Along the Pacific Coast (ver. 2.0, June 2025)
Waterfowl Brood Drone Surveys from Suisun, California 2019 Waterfowl Brood Drone Surveys from Suisun, California 2019
UAS Whiskeytown UAS Whiskeytown
Soil Characteristics and Accretion Rates in Mangrove Forests across Pohnpei, Federated States of Micronesia Soil Characteristics and Accretion Rates in Mangrove Forests across Pohnpei, Federated States of Micronesia
Marsh Vegetation Surveys Across the San Francisco Bay Estuary, 2008-2018 Marsh Vegetation Surveys Across the San Francisco Bay Estuary, 2008-2018
Estuarine vegetated wetland change scenarios for estuaries in the conterminous United States, 1996–2019 Estuarine vegetated wetland change scenarios for estuaries in the conterminous United States, 1996–2019
Nature-based solutions could offset coastal squeeze of tidal wetlands from sea-level rise on the U.S. Pacific coast Nature-based solutions could offset coastal squeeze of tidal wetlands from sea-level rise on the U.S. Pacific coast
Seasonal and spatial patterns in sediment transport in an erosional marsh system Seasonal and spatial patterns in sediment transport in an erosional marsh system
Surveying waterfowl broods in wetlands using aerial drones Surveying waterfowl broods in wetlands using aerial drones
When and where can coastal wetland restoration increase carbon sequestration as a natural climate solution? When and where can coastal wetland restoration increase carbon sequestration as a natural climate solution?
Projecting mangrove forest resilience to sea-level rise on a Pacific Island: Species dynamics and ecological thresholds Projecting mangrove forest resilience to sea-level rise on a Pacific Island: Species dynamics and ecological thresholds
Bay Miwok evening primrose: A new subspecies of Oenothera deltoides (Onagraceae) endemic to California Bay Miwok evening primrose: A new subspecies of Oenothera deltoides (Onagraceae) endemic to California
*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