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Research Scientist

Contact Information:

Marianna Szűcs, Ph.D.

Department of Agricultural Biology

Colorado State University

1177 Campus Delivery

Fort Collins, CO 80523-1177



Research Interests:

I am interested in understanding basic evolutionary and ecological processes that allow species to colonize and adapt to novel or changing environments. During my Ph.D. I studied rapid adaptive evolution and the effects of intraspecific hybridization in a biological control agent (Longitarsus jacobaeae) introduced to control the exotic weed, tansy ragwort. Currently, I am using a model organism, Tribolium castaneum, to explore the roles demography and genetics play in the founding of new populations and adaptation to a novel environment.


Curriculum Vitae

Selected Publications:

Hufbauer RA, M Szűcs, E Kasyon, C Youngberg, M Koontz, C Richards, T Tuff, BA Melbourne. 2015. Reply to Wootton and Pfister: The search for general context should include synthesis with laboratory model systems. PNAS. Early Edition. doi:10.1073/pnas.1517210112

Hufbauer RA, M Szűcs, E Kasyon, C Youngberg, M Koontz, C Richards, T Tuff, BA Melbourne. 2015. Three types of rescue can avert extinction in a changing environment. PNAS. 112:10557-10562

Szűcs, M, B. A. Melbourne, T. Tuff, and R. A. Hufbauer. 2014. The roles of demography and genetics in the early stages of colonization. Proceedings of the Royal Society B Biological Sciences. 281.20141073

Szűcs M., Eigenbrode,  M. Schwarzländer, and U. Schaffner. 2012. Hybrid vigor in the biological control agent, Longitarsus jacobaeae.Evolutionary Applications 58:489-497

Szűcs M., U. Schaffner, W. J. Price and M. Schwarzländer. 2012. Post-introduction evolution in the biological control agent Longitarsus jacobaeae(Coleoptera: Chrysomelidae). Evolutionary Applications. 5: 858-868

Szűcs M., M. Schwarzländer, and J.F. Gaskin. 2011.  Reevaluating establishment and potential hybridization of different biotypes of the biological control agent Longitarsus jacobaeae using molecular tools. Biological Control 58:44-52

Marsico, T. D., J. W. Burt, E. K. Espeland, G. Gilchrist, M. A. Jamieson, L. Lindström, S. Swope, G. Roderick, M. Szűcs, and N. Tsutsui. 2010. Underutilized resources for studying the evolution of invasive species during their introduction, establishment, and lag phases. Evolutionary Applications. 3: 203-220.

Szűcs M., C. L. Anderson, and M. Schwarzländer. 2008. Landscape genetics and climatic associations of flea beetle lineages, and implications for biocontrol of tansy ragwort. In Proceedings of the XII International Symposium on Biological Control  of Weeds (eds. Julien, M.H., Sforza, R., Bon, M.C., Evans, H.C., Hatcher, P.E., Hinz, H.L. and Rector, B.G.), pp 443-447. CAB International Wallingford, UK.

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