USGS Image Drylands of Southern Utah - April 28, 2014
John B Bradford, Ph.D.
John Bradford is a Research Ecologist with the USGS Northwest Climate Adaptation Science Center. John studies dryland ecosystems in the context of global change and works with resource managers to identify adaptive strategies for sustaining these ecosystems in a changing world.
John focuses on understanding how changing climate, disturbances, and land use influence dryland vegetation, plant communities, and ecosystem services. He is currently engaged in the broad topics of ecohydrology and dryland sustainability in the western U.S. and has projects examining a) the potential influence of changing climatic conditions on the distribution and regeneration potential of trees and shrubs in the intermountain western U.S., b) strategies for understanding and enhancing dryland ecosystem resilience to changing climate and drought patterns, and c) ecosystem water balance and patterns of plant-available soil water in dryland regions.
Professional Experience
2011- Present: Research Ecologist - US Geological Survey, Southwest Biological Science Center, Flagstaff, AZ
2006 - 2011: Research Ecologist - USDA Forest Service, North Central Research Station, Grand Rapids, MN
2004 - 2006: Research Ecologist (Postdoctoral) - USDA Forest Service, Rocky Mountain Research Station, Fort Collins, CO
Education and Certifications
2004 - Ph.D., Ecology, Colorado State University
1996 - B.A., Biology, Cornell University
Science and Products
Enhancing Rangeland Recovery by Forecasting Seed Establishment
Supporting energy and mineral development through successful reclamation
RAMPS: Restoration Assessment & Monitoring Program for the Southwest
Influence of future climate scenarios on habitat and population dynamics of greater sage-grouse
Climate-Smart Vegetation Treatments - Using 15 Years of SageSTEP Data to Inform Management of Resilient Ecosystems
Informing seed transfer guidelines and native plant materials development
Estimated Current and Future Community Suitability of Pinyon and Juniper Woodlands for 3 Emissions Scenario Pathways (SSP2-4.5, SSP3-7.0, SSP5-8.5) and Bivariate Comparisons Across Western North America Estimated Current and Future Community Suitability of Pinyon and Juniper Woodlands for 3 Emissions Scenario Pathways (SSP2-4.5, SSP3-7.0, SSP5-8.5) and Bivariate Comparisons Across Western North America
Simulated daily soil moisture and water balance 1979-2020 for drought assessments in seven watersheds in the northwestern USA Simulated daily soil moisture and water balance 1979-2020 for drought assessments in seven watersheds in the northwestern USA
Ecological resilience and resistance across the sagebrush biome under ambient and projected climate conditions Ecological resilience and resistance across the sagebrush biome under ambient and projected climate conditions
Current and projected sagebrush ecological integrity across the Western U.S., 2017-2100 (ver. 2.0, February 2025) Current and projected sagebrush ecological integrity across the Western U.S., 2017-2100 (ver. 2.0, February 2025)
Estimated current and future environmental suitability of pinyon and juniper tree species for 3 emission scenario pathways (SSP2-4.5, SSP3-7.0, SSP5-8.5) across the western North America Estimated current and future environmental suitability of pinyon and juniper tree species for 3 emission scenario pathways (SSP2-4.5, SSP3-7.0, SSP5-8.5) across the western North America
Site characterization and regeneration attributes of managed and unmanaged ponderosa pine sites in the southwestern United States Site characterization and regeneration attributes of managed and unmanaged ponderosa pine sites in the southwestern United States
USGS Image Drylands of Southern Utah - April 28, 2014
Fungi, fire, and feedbacks: Grasses and wildfire interact to alter ectomycorrhizal fungal communities and decrease tree seedling growth Fungi, fire, and feedbacks: Grasses and wildfire interact to alter ectomycorrhizal fungal communities and decrease tree seedling growth
Aridity reduces lag times between aquatic and terrestrial dry-down among watersheds and across years in the northwest US Aridity reduces lag times between aquatic and terrestrial dry-down among watersheds and across years in the northwest US
Supporting dryland restoration success with applied ecological forecasting of seeding outcomes Supporting dryland restoration success with applied ecological forecasting of seeding outcomes
Shifts in suitability of pinyon-juniper communities: A climate adaptation framework for range-wide management of arid woodland resources Shifts in suitability of pinyon-juniper communities: A climate adaptation framework for range-wide management of arid woodland resources
Ecological acclimation: A framework to integrate fast and slow responses to climate change Ecological acclimation: A framework to integrate fast and slow responses to climate change
Climate change impacts on plant communities in the sagebrush region—A science synthesis to inform Bureau of Land Management resource management Climate change impacts on plant communities in the sagebrush region—A science synthesis to inform Bureau of Land Management resource management
Colorado River Basin Projects Colorado River Basin Projects
Science and Products
Enhancing Rangeland Recovery by Forecasting Seed Establishment
Supporting energy and mineral development through successful reclamation
RAMPS: Restoration Assessment & Monitoring Program for the Southwest
Influence of future climate scenarios on habitat and population dynamics of greater sage-grouse
Climate-Smart Vegetation Treatments - Using 15 Years of SageSTEP Data to Inform Management of Resilient Ecosystems
Informing seed transfer guidelines and native plant materials development
Estimated Current and Future Community Suitability of Pinyon and Juniper Woodlands for 3 Emissions Scenario Pathways (SSP2-4.5, SSP3-7.0, SSP5-8.5) and Bivariate Comparisons Across Western North America Estimated Current and Future Community Suitability of Pinyon and Juniper Woodlands for 3 Emissions Scenario Pathways (SSP2-4.5, SSP3-7.0, SSP5-8.5) and Bivariate Comparisons Across Western North America
Simulated daily soil moisture and water balance 1979-2020 for drought assessments in seven watersheds in the northwestern USA Simulated daily soil moisture and water balance 1979-2020 for drought assessments in seven watersheds in the northwestern USA
Ecological resilience and resistance across the sagebrush biome under ambient and projected climate conditions Ecological resilience and resistance across the sagebrush biome under ambient and projected climate conditions
Current and projected sagebrush ecological integrity across the Western U.S., 2017-2100 (ver. 2.0, February 2025) Current and projected sagebrush ecological integrity across the Western U.S., 2017-2100 (ver. 2.0, February 2025)
Estimated current and future environmental suitability of pinyon and juniper tree species for 3 emission scenario pathways (SSP2-4.5, SSP3-7.0, SSP5-8.5) across the western North America Estimated current and future environmental suitability of pinyon and juniper tree species for 3 emission scenario pathways (SSP2-4.5, SSP3-7.0, SSP5-8.5) across the western North America
Site characterization and regeneration attributes of managed and unmanaged ponderosa pine sites in the southwestern United States Site characterization and regeneration attributes of managed and unmanaged ponderosa pine sites in the southwestern United States
USGS Image Drylands of Southern Utah - April 28, 2014
USGS Image Drylands of Southern Utah - April 28, 2014