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
A trans-national monarch butterfly population model and implications for regional conservation priorities
Improving spatio-temporal benefit transfers for pest control by generalist predators in cotton in the southwestern U.S.
Evaluating alternative methods for biophysical and cultural ecosystem services hotspot mapping in natural resource planning
A management-oriented framework for selecting metrics used to assess habitat- and path-specific quality in spatially structured populations
Social-value maps for Arapaho, Roosevelt, Medicine Bow, Routt, and White River National Forests, Colorado and Wyoming
Quasi-extinction risk and population targets for the Eastern, migratory population of monarch butterflies (Danaus plexippus)
Social Values for Ecosystem Services, version 3.0 (SolVES 3.0): documentation and user manual
Linking biophysical models and public preferences for ecosystem service assessments: a case study for the Southern Rocky Mountains
Optimizing conservation strategies for Mexican freetailed bats: a population viability and ecosystem services approach
Replacement cost valuation of Northern Pintail (Anas acuta) subsistence harvest in Arctic and sub-Arctic North America
Validating a method for transferring social values of ecosystem services between public lands in the Rocky Mountain region
Market forces and technological substitutes cause fluctuations in the value of bat pest-control services for cotton
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
A trans-national monarch butterfly population model and implications for regional conservation priorities
Improving spatio-temporal benefit transfers for pest control by generalist predators in cotton in the southwestern U.S.
Evaluating alternative methods for biophysical and cultural ecosystem services hotspot mapping in natural resource planning
A management-oriented framework for selecting metrics used to assess habitat- and path-specific quality in spatially structured populations
Social-value maps for Arapaho, Roosevelt, Medicine Bow, Routt, and White River National Forests, Colorado and Wyoming
Quasi-extinction risk and population targets for the Eastern, migratory population of monarch butterflies (Danaus plexippus)
Social Values for Ecosystem Services, version 3.0 (SolVES 3.0): documentation and user manual
Linking biophysical models and public preferences for ecosystem service assessments: a case study for the Southern Rocky Mountains
Optimizing conservation strategies for Mexican freetailed bats: a population viability and ecosystem services approach
Replacement cost valuation of Northern Pintail (Anas acuta) subsistence harvest in Arctic and sub-Arctic North America
Validating a method for transferring social values of ecosystem services between public lands in the Rocky Mountain region
Market forces and technological substitutes cause fluctuations in the value of bat pest-control services for cotton
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.