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Contacting Us:

If you are interested in our research or software, please contact:

Steve Railsback
Adjunct professor, HSU Department of Mathematics
and Lang, Railsback & Assoc.
Arcata, California

Chris Dugaw
Humboldt State University
Department of Mathematics
Arcata, California
Phone: 707-826-4251; Fax: 707-826-3140

Who We Are

The individual-based modeling program at Humboldt State is a collaboration among the Department of Mathematics (Environmental Systems - Mathematical Modeling Graduate Program), Lang, Railsback & Assoc. (an extremely small research consulting firm), software developers, and on-campus organizations including the U.S.D.A. Forest Service's Redwood Sciences Laboratory, the California Cooperative Fisheries Research Unit, and Humboldt State departments of Fisheries, Wildlife, and Environmental Resource Engineering.

External and International Collaborators

We have been lucky enough to visit, collaborate, and publish (see the Products and Publications page) with many others, including the following.


Our sponsors have included the U. S. Environmental Protection Agency, the U.S. Forest Service, Pacific Gas and Electric Company, Southern California Edison Company, the Electric Power Research Institute, Columbia Basin Research, U.S. Bureau of Reclamation, the CALFED Bay-Delta Program, and the U. S. Fish and Wildlife Service.


Tamara Grand and Geir Huse


Volker Grimm

Tamara Grand and Geir Huse observe coho and cutthroat at the California Cooperative Fisheries Unit's Prairie Creek research site, Redwood National Park.


Volker Grimm contributes his expertise on many important topics.

Bret Harvey
Bret Harvey with the Redwood Sciences Laboratory artificial stream, where he and colleagues Rod Nakamoto and Jason White conduct experiments to support our modeling work.
Linking Individual Behavior and Population Ecology: Models, Theory, and Applications
Participants in the session "Linking Individual Behavior and Population Ecology: Models, Theory, and Applications" that we organized at the 2004 Ecological Society of America meeting. Left to right: Lou Gross (University of Tennessee), Wolf Mooij (Netherlands Institute of Ecology), Geir Huse (Institute of Marine Resources, University of Bergen, Norway), Uta Berger (University of Bremen, Germany, Steve Railsback (Humboldt State), Scott Peacor (Michigan State University), Jacob Weiner (Royal Veterinary and Agricultural University, Denmark), Volker Grimm (Centre for Environmental Research Leipzig-Halle, Germany), and Don DeAngelis (University of Miami).