Patrick Shafroth, PhD
Patrick B. Shafroth is a Scientist Emeritus at the Arizona Water Science Center.
Since 1991, Dr. Shafroth has conducted research on river and riparian systems, primarily in arid and semi-arid regions of western U.S. He and his colleagues from the USGS and other institutions have focused their work on understanding relationships between surface and ground-water hydrology, fluvial processes, and the dynamics of native and introduced riparian vegetation. This research has often had strong application to resource management (particularly DOI sister agencies), by providing solid, objective scientific information to inform riparian management and restoration. Specific applications have included studies of large-scale flow experiments, dam removal, effects of invasive species control, system responses to various restoration actions, vegetation responses to drought, and system responses to high intensity wildfires.
Education and Certifications
Ph.D. in Plant Biology, Arizona State University, 1999
M.S. in Forest Ecology, Colorado State University, 1993
B.A. in Environmental Studies and Geography, University of California, Santa Barbara, 1989
Science and Products
Coupling groundwater and riparian vegetation models to assess effects of reservoir releases Coupling groundwater and riparian vegetation models to assess effects of reservoir releases
Responses of riparian cottonwoods to alluvial water table declines Responses of riparian cottonwoods to alluvial water table declines
Establishment of woody riparian vegetation in relation to annual patterns of streamflow, Bill Williams River, Arizona Establishment of woody riparian vegetation in relation to annual patterns of streamflow, Bill Williams River, Arizona
Riparian cottonwood response to watertable declines Riparian cottonwood response to watertable declines
Book review: Riparian ecosystem recovery in arid lands: Strategies and references Book review: Riparian ecosystem recovery in arid lands: Strategies and references
Germination and establishment of the native plains cottonwood (Populus deltoides Marshall subsp. monilifera) and the exotic Russian-olive (Elaeagnus angustifolia L.) Germination and establishment of the native plains cottonwood (Populus deltoides Marshall subsp. monilifera) and the exotic Russian-olive (Elaeagnus angustifolia L.)
Effects of salinity on establishment of Populus fremontii (cottonwood) and Tamarix ramosissima (saltcedar) in southwestern United States Effects of salinity on establishment of Populus fremontii (cottonwood) and Tamarix ramosissima (saltcedar) in southwestern United States
Effects of salinity on establishment of Populus fremontii (cottonwood) and Tamarix ramosissima (saltcedar) Effects of salinity on establishment of Populus fremontii (cottonwood) and Tamarix ramosissima (saltcedar)
Establishment, sex structure and breeding system of an exotic riparian willow, Salix X rubens Establishment, sex structure and breeding system of an exotic riparian willow, Salix X rubens
Flow recommendations for maintaining riparian vegetation along the Upper Missouri River, Montana Flow recommendations for maintaining riparian vegetation along the Upper Missouri River, Montana
Reproduction of an exotic riparian tree willow, Salix fragilis (L.), in Colorado Reproduction of an exotic riparian tree willow, Salix fragilis (L.), in Colorado
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Coupling groundwater and riparian vegetation models to assess effects of reservoir releases Coupling groundwater and riparian vegetation models to assess effects of reservoir releases
Responses of riparian cottonwoods to alluvial water table declines Responses of riparian cottonwoods to alluvial water table declines
Establishment of woody riparian vegetation in relation to annual patterns of streamflow, Bill Williams River, Arizona Establishment of woody riparian vegetation in relation to annual patterns of streamflow, Bill Williams River, Arizona
Riparian cottonwood response to watertable declines Riparian cottonwood response to watertable declines
Book review: Riparian ecosystem recovery in arid lands: Strategies and references Book review: Riparian ecosystem recovery in arid lands: Strategies and references
Germination and establishment of the native plains cottonwood (Populus deltoides Marshall subsp. monilifera) and the exotic Russian-olive (Elaeagnus angustifolia L.) Germination and establishment of the native plains cottonwood (Populus deltoides Marshall subsp. monilifera) and the exotic Russian-olive (Elaeagnus angustifolia L.)
Effects of salinity on establishment of Populus fremontii (cottonwood) and Tamarix ramosissima (saltcedar) in southwestern United States Effects of salinity on establishment of Populus fremontii (cottonwood) and Tamarix ramosissima (saltcedar) in southwestern United States
Effects of salinity on establishment of Populus fremontii (cottonwood) and Tamarix ramosissima (saltcedar) Effects of salinity on establishment of Populus fremontii (cottonwood) and Tamarix ramosissima (saltcedar)
Establishment, sex structure and breeding system of an exotic riparian willow, Salix X rubens Establishment, sex structure and breeding system of an exotic riparian willow, Salix X rubens
Flow recommendations for maintaining riparian vegetation along the Upper Missouri River, Montana Flow recommendations for maintaining riparian vegetation along the Upper Missouri River, Montana
Reproduction of an exotic riparian tree willow, Salix fragilis (L.), in Colorado Reproduction of an exotic riparian tree willow, Salix fragilis (L.), in Colorado
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.