Darius Semmens
Darius Semmens is a Research Physical Scientist with the Geosciences and Environmental Change Science Center
His current research interests include the development of new methods and tools for the assessment and valuation of ecosystem goods and services - the specific benefits that we derive from nature. More specifically, his work involves developing methods and tools that can account for the spatial and temporal dynamics of service production and incorporate that and other information into more rigorous analyses of the tradeoffs associated with landscape management. Darius' current work includes cultural ecosystem services modeling with the Social Values for Ecosystem Services (SolVES) tool, quantifying ecosystem service flows from migratory species to inform cross-jurisdictional management and conservation, and multi-resource analysis for energy and minerals.
Professional Experience
2008: Research Physical Scientist with the USGS
2004-2007: Postdoctoral fellow with the U.S. Environmental Protection Agency, Office of Research and Development
Education and Certifications
2004: University of Arizona: Ph.D. in Watershed Management (minor in Remote Sensing and Spatial Analysis)
1998: Northern Arizona University: M.S. in Geology (emphasis in Geomorphology)
1995: University of Minnesota: B.S. in Geology
Science and Products
Quantifying and valuing ecosystem services: An application of ARIES to the San Pedro River basin, USA
Climate change's impact on key ecosystem services and the human well-being they support in the US
Moving across the border: Modeling migratory bat populations
National valuation of monarch butterflies indicates an untapped potential for incentive-based conservation
A comparative assessment of tools for ecosystem services quantification and valuation
Comparing approaches to spatially explicit ecosystem service modeling: a case study from the San Pedro River, Arizona
An application of Social Values for Ecosystem Services (SolVES) to three national forests in Colorado and Wyoming
How do migratory species add ecosystem service value to wilderness? Calculating the spatial subsidies provided by protected areas
A framework for quantitative assessment of impacts related to energy and mineral resource development
Impacts of climate change on ecosystem services
Ecosystem services valuation to support decisionmaking on public lands—A case study of the San Pedro River watershed, Arizona
The Colorado Plateau V: research, environmental planning, and management for collaborative conservation
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
Quantifying and valuing ecosystem services: An application of ARIES to the San Pedro River basin, USA
Climate change's impact on key ecosystem services and the human well-being they support in the US
Moving across the border: Modeling migratory bat populations
National valuation of monarch butterflies indicates an untapped potential for incentive-based conservation
A comparative assessment of tools for ecosystem services quantification and valuation
Comparing approaches to spatially explicit ecosystem service modeling: a case study from the San Pedro River, Arizona
An application of Social Values for Ecosystem Services (SolVES) to three national forests in Colorado and Wyoming
How do migratory species add ecosystem service value to wilderness? Calculating the spatial subsidies provided by protected areas
A framework for quantitative assessment of impacts related to energy and mineral resource development
Impacts of climate change on ecosystem services
Ecosystem services valuation to support decisionmaking on public lands—A case study of the San Pedro River watershed, Arizona
The Colorado Plateau V: research, environmental planning, and management for collaborative conservation
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.