Human Impacts

Jean Carlson

Jean Carlson investigates robustness, tradeoffs, and feedback in complex, highly connected systems, and develops multi-scale models to capture important small-scale details and predict large-scale behavior.

Simone Pulver

My research focuses broadly on the engagement of non-state actors, i.e. firms, non-governmental organizations and scientific experts, in climate change politics at international and national levels and in industrialized and developing-country settings. My first research project focused on the roles played by transnational oil corporations and transnational environmental advocacy NGOs in the UN climate negotiations.
Current Projects:

Robert (Bob) Miller

I am interested in benthic subtidal ecology, particularly community ecology and the role of primary producers in marine ecosystems. Off southern California, kelp forests are a spectacular example of marine ecosystems, rivaling coral reefs in beauty and biodiversity.  With the Santa Barbara Coastal Long-Term Ecological Research program I study the dynamics of different groups of primary producers, including kelp, understory macroalgae, and phytoplankton, how these groups interact competitively, and their roles in coastal food webs.

Dylan Rood

My research focuses on the use of several cosmogenic isotopes, including 10Be, 26AI and 36CI as geochemical/geophysical tracers and dating tools. I utilize cosmogenic nuclides to investigate terrestrial climate records, earthquake fault slip rates, erosion rates and landscape evolution, seismic hazard and earthquake ground motions, Earth surface processes, atmospheric circulation, hydrology, burial dating and archeology, and calibration of cosmogenic nuclide production rates.

Christina (Naomi) Tague

Naomi Tague's research is focused on the interactions between hydrology and ecosystem processes and, specifically, how eco-hydrologic systems are altered by changes in land use and climate. Much of her work involves developing and using spatial simulation models to integrate data from multiple field-based monitoring studies in order to generalize results to larger watersheds. Reflecting that emphasis, she is one of the principal developers of the Regional Hydro-Ecologic Simulation System (RHESSys), an integrated model of spatially distributed carbon, water, and nitrogen cycling.

Roland Geyer

Born and educated in Germany, where he was trained in engineering and physics, Roland Geyer came to the Bren School in 2003 and now teaches courses in production and operations management, and in the emerging field of industrial ecology. Geyer is interested in the life cycle of manufactured goods—the processes in the form of energy and material flows that are related to transforming raw materials into products and, ultimately, waste—and in the environmental and economic potential of reuse and recycling activities.

Roger Nisbet

My research covers many areas of theoretical ecology. The overarching theme is the use of “individual-based” or “structured” population models to relate population dynamics to the physiology and behavior of individual members of a population. Much work is based on Dynamic Energy Budget (DEB) theory to describe the rates at which individual organisms assimilate and utilize energy and elemental matter. My research group both develops new fundamental theory and applies it to environmental problems.

Carla D'Antonio

My research lies at the interface of plant community and ecosystem ecology. The goals of my research program are, to understand controls over variation in plant community change across landscapes and how the invasion of species affects ecosystem composition, structure and functioning. Specific foci include processes that control invasions by non-indigenous plant species and mechanisms through which plants affect ecosystem functioning over short versus long time scales.

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