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
Sustaining Environmental Capital Initiative summary report
Is the timing, pace and success of the monarch migration associated with sun angle?
Quantifying source and sink habitats and pathways in spatially structured populations: A generalized modelling approach
Willingness to pay for conservation of transborder migratory species: A case study of the Mexican free-tailed bat in the United States and Mexico
Monarch habitat as a component of multifunctional landscape restoration using continuous riparian buffers
Using social-context matching to improve spatial function-transfer performance for cultural ecosystem service models
Balancing sampling intensity against spatial coverage for a community science monitoring programme
Consequences of ignoring spatial variation in population trend when conducting a power analysis
Multi-country willingness to pay for transborder migratory species conservation: A case study of Northern Pintails
Ecosystem service flows from a migratory species: Spatial subsidies of the northern pintail
Tools for measuring, modelling, and valuing ecosystem services: guidance for Key Biodiversity Areas, natural World Heritage sites, and protected areas
Do economic values and expenditures for viewing waterfowl in the U.S. differ among species?
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
Sustaining Environmental Capital Initiative summary report
Is the timing, pace and success of the monarch migration associated with sun angle?
Quantifying source and sink habitats and pathways in spatially structured populations: A generalized modelling approach
Willingness to pay for conservation of transborder migratory species: A case study of the Mexican free-tailed bat in the United States and Mexico
Monarch habitat as a component of multifunctional landscape restoration using continuous riparian buffers
Using social-context matching to improve spatial function-transfer performance for cultural ecosystem service models
Balancing sampling intensity against spatial coverage for a community science monitoring programme
Consequences of ignoring spatial variation in population trend when conducting a power analysis
Multi-country willingness to pay for transborder migratory species conservation: A case study of Northern Pintails
Ecosystem service flows from a migratory species: Spatial subsidies of the northern pintail
Tools for measuring, modelling, and valuing ecosystem services: guidance for Key Biodiversity Areas, natural World Heritage sites, and protected areas
Do economic values and expenditures for viewing waterfowl in the U.S. differ among species?
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.