Ottar Bjornstad, Ph.D.

Websites

• http://ento.psu.edu/research/labs/ottar-bjornstad
• https://github.com/objornstad/
• http://cidd.psu.edu/

Education

• B.A. Biology, University of Oslo, Norway 1991
• M.S. Zoology, University of Oslo, 1993
• Ph.D. Ecology, University of Oslo, 1997

Department Focus Areas:

Disease Ecology and Biology
Ecological Applications

Research Interests:

Population ecology and population dynamics with particular emphasis on mathematical and computational aspects

Research Activities & Interests:

My main interests are population ecology and population dynamics with particular emphasis on mathematical and computational aspects. I am also an adjunct professor in statistics and carry out research in statistical ecology and in methods for analyzing spatiotemporal data. 

NEW BOOK

Epidemics: Models and data using R
https://www.springer.com/gp/book/9783319974866 

Selected Publications:

For a complete listing use google.scholar.com

Dalziel, B.D., Kissler, S., Gog, J. Viboud, C., Bjørnstad, O.N., Metcalf, C.J.E., Grenfell, B.T. 2018. Urbanization and humidity shape the intensity of influenza epidemics in US cities. Science 362: 75-79. doi.org/ 0.1126/science.aat6030

Tian, H., Hu, S., Cazelles, B., Chowell, G., Gao, L., Laine, M., Li, Y., Yang, H., Li, Y., Yang, Q., Tong, X., Huang, R., Bjornstad, O.N., Xiao, H., Stenseth, N.C. 2018. Urbanization prolongs hantavirus epidemics in cities. Proceedings of the National Academy of Sciences USA 115: 4707-4712.

Li, S-L., Bjørnstad, O.N., Ferrari, M.,  Mummah, R., Runge, M.C., Fonnesbeck, C., Tildesley, M.J, Probert, W.J.M. and Shea, K. 2017. Essential information: Uncertainty and optimal control of Ebola outbreaks. Proceedings of the National Academy of Science USA 114: 5659–5664.

Bjørnstad, O.N. and Viboud, C. 2016. Timing and periodicity of influenza epidemics. Proceedings of the National Academy of Science USA 113: 12899–12901.

Bhattacharyya, S., Gesteland, P.H., Korgenski, K., Bjørnstad, O.N. and Adler, F.R. 2015. Cross-immunity between strains explains the dynamical pattern of paramyxoviruses. Proceedings of the National Academy of Science USA

Bjornstad, O.N. 2015. Nonlinearity and chaos in ecological dynamics revisited. Proceedings of the National Academy of Science USA 112(20): 6252–6253

Nelson, W.A., Bjornstad, O.N. and Yamanaka, T. 2013. Recurrent insect outbreaks caused by temperature-driven changes in system stability.  Science 341: 796-799.

Metcalf, C.J.E., Graham, A.L., Huijben, S., Barclay, V.C., Long, G.H.,  Grenfell, B.T., Read, A.F. and Bjørnstad, O.N. 2011. Partitioning regulatory mechanisms of within-host malaria dynamics using the effective propagation number. Science 333: 984-988.

Lavine, J., King, A.A. and Bjornstad, O.N. 2011. Natural immune boosting in pertussis dynamics and the potential for long-term vaccine failure. Proceedings of the National Academy of Science USA 108: 7259-7264.

Johnson, D.M., Liebhold, A.M., Tobin, P.C and Bjørnstad, O.N. 2006. Allee effects and pulsed invasion by the gypsy moth. Nature 444: 361-363.

Bjørnstad, O.N., Peltonen, M., Liebhold, A.M. & Baltensweiler, W. 2002. Waves of larch budmoth outbreaks in the European alps. Science 298: 1020-1023.

Bjørnstad, O.N. & Grenfell, B.T. 2001. Noisy clockwork: time series analysis of population fluctuations in animals. Science 293: 638-643.

Bjørnstad, O.N., Sait, S.M., Stenseth, N.C., Thompson, D.J. & Begon, M. 2001. Coupling and the impact of specialised enemies on the dimensionality of prey dynamics. Nature 401: 1001-1006.