- Contact for field ecology courses
- Contact for KU Field Station Summer Short Courses
Ph.D., Ecology and Evolutionary Biology, Cornell University, 1986
B.S., Cellular and Molecular Biology, University of Washington, 1976
KU Field Station
Areas of specialization
Environmental education; arthropod population and community ecology research
- Forest community ecology
- Effect of habitat fragmentation and landscape context on development of terrestrial arthropod communities
Johnson, J. B., R. H. Hagen, and E. A. Martinko. 2010. Effect of succession and habitat area on wandering spider abundance in an experimental landscape. Journal of the Kansas Entomological Society 83: 141–153.
Martinko, E. A., R. H. Hagen, and J. A. Griffith. 2006. Successional change in the insect community of a fragmented landscape. Landscape Ecology 21: 711–721.
Hagen, R. H. 1999. Prolegs of Papilionini (Lepidoptera: Papilionidae): Alternative solutions to the problem of attachment. IN: Byers, G. W., R. H. Hagen, and R. W. Brooks, Eds. Entomological Contributions in Memory of Byron A. Alexander. University of Kansas Natural History Museum, Special Publication 24: 218–232.
Smith, D. R. and R. H. Hagen. 1996. Population structure and interdemic selection in the cooperative spider, Anelosimus eximius. Journal of Evolutionary Biology 9: 589–608.
Hagen, R. H. 1990. Population structure and host use in hybridizing subspecies of Papilio glaucus (Lepidoptera: Papilionidae). Evolution 44: 1914–1930.