Plant Ecology

September 29, 2005 / By: Simon K. Emms, PH.D.

Current Projects

Currently I am collaborating with Dr. Amy Verhoeven at UST and Dr. Susan Mazer at the University of California Santa Barbara on a five-year, NSF funded project to study the joint evolution of mating systems, life-history strategies, and drought physiology in the Californian genus Clarkia. I am also working on the evolution of reproductive allocation and gamete packaging strategies in prairie larkspurDelphinium virescens in Minnesota.

Presentations & Publications

Student Presentations

  • Croteau, Clare. 2002. Sex allocation to male and female floral structures in Prairie Larkspur, Delphinium virescens. National Conference on Undergraduate Research, University of Wisconsin, Whitewater, WI.
  • Hultman, Keith. 2001. Development of microsatellite DNA markers for measuring male reproductive success in Aquilegia canadensis. National Conference on Undergraduate Research, University of Kentucky, Lexington, KY. (Co-supervised with Dr. J.L. Cruise).
  • Hultman, Keith. 2001. Development of microsatellite DNA markers for measuring male reproductive success in Aquilegia canadensis. Tri-Beta Regional Meeting, St. Mary’s University of Minnesota, Winona, MN. (Co-supervised with Dr. J.L. Cruise)
  • Mooney, Becky. 2001. Development of microsatellite markers for Aquilegia canadensis. Minnesota Academy of Science Annual Meeting, University of St. Thomas. (Co-supervised with Dr. J.L. Cruise).
  • Hultman, Keith. 2000. Patterns of resource allocation to floral structures in the Ranunculaceae family. Minnesota Academy of Science Annual Meeting. First prize in the Ecological, Agricultural, and Organismal Biology section of the Winchell Symposium.
  • Wyckoff, Meagen. 1999. Population genetic variation and outcrossing rates in Bidens. National Conference on Undergraduate Research, Rochester, NY.
  • Bresee, Karen. 1999. The role of floral attractive structures in the pollination biology of Bidens. Minnesota Academy of Science Annual Meeting.

Publications (Names in bold denote student research collaborators.)

  • Emms, S.K., K. Bresee, S. Churchill, C. Croteau, N. Duxbury, and C. KasterIn preparation. The effect of blooming sequence on allocation to male, female, and attractive floral structures in Prairie LarkspurDelphinium virescens (Ranunculaceae).
  • Emms, S.K. In preparation. Do male flowers increase female fitness in andromonoecious plants: experimental tests with Zigadenus paniculatus (Liliaceae).
  • Emms, S.K., and M.L. Arnold. 2000. Site-to-site differences in pollinator visitation patterns in a Louisiana iris hybrid zone. Oikos: 91: 568-578.
  • Arnold, M.L., and S.K. Emms. 1998. Paradigm lost: natural hybridization and evolutionary innovations. Invited symposium chapter. In: D. Howard and S. Berlocher (Editors). Endless forms: species and speciation: a symposium in honor of Guy L. Bush. Oxford University Press, New York
  • Arnold, M.L., and S.K. Emms. 1998. DNA markers, gene flow, and natural selection. In  D. Soltis, P. Soltis, and J. Doyle (Editors). Molecular systematics of plants II. DNA sequencing. Kluwer, Boston.
  • Emms, S.K., D.A. Stratton, and A.A. Snow. 1997. The effect of inflorescence size on male fitness: experimental tests in the andromonoecious lily, Zigadenus paniculatusEvolution 51: 1481-1489.
  • Emms, S.K., and M.L. Arnold. 1997. The effect of habitat on parental and hybrid fitness: reciprocal transplant experiments with Louisiana irises. Evolution 51: 1112-1119.
  • Emms, S.K., S.A. Hodges, and M.L. Arnold. 1996. Pollen-tube competition, siring success, and consistent asymmetric hybridization in Louisiana irises. Evolution 50: 2201-2206.
  • Emms, S.K. 1996. Temporal patterns of seed set and decelerating fitness returns on female allocation inZigadenus paniculatus (Liliaceae), an andromonoecious lily. American Journal of Botany 83:304-315.
  • Emms, S.K. 1993. On measuring fitness gain curves in plants. Ecology 74:1750-1756.
  • Emms, S.K. 1993. Andromonoecy in Zigadenus paniculatus (Liliaceae): spatial and temporal patterns of sex allocation. American Journal of Botany 80:914-923.
  • Emms, S.K. 1993. The adaptive significance of andromonoecy in Zigadenus paniculatus (Liliaceae). Ph.D. thesis, Princeton University.
  • Emms, S.K., and N.A.M. Verbeek. 1991. Brood size, chick provisioning, and chick growth in the Pigeon Guillemot Cepphus columbaCondor 93:943-951.
  • Emms, S.K., and N.A.M. Verbeek. 1991. Kleptoparasite avoidance tactics of pigeon guillemots, Cepphus columbaAnimal Behaviour 41:907-909.
  • Emms, S.K., and N.A.M. Verbeek. 1989. Significance of the pattern of nest distribution in the pigeon guillemot, Cepphus columbaAuk 106:193-202.
  • Emms, S.K., and K. Morgan. 1989. The breeding biology and distribution of the Pigeon Guillemot,Cepphus columbaIn Ecology and status of marine birds in the Strait of Georgia (K. Vermeer and R.W. Butler, Eds.). Special Publications of the Canadian Wildlife Service.
  • Emms, S.K. 1987. The adaptive significance of the pattern of nest dispersion in the Pigeon Guillemot,Cepphus columba. M.Sc. thesis, Simon Fraser University.

Student Awards

Keith Hultman. University of St. Thomas Young Scholars Award. 2000

Keith Hultman. Tri-Beta Society (National Biology Honor Society) Research Grant 1999.

Karen Bresee. University of St. Thomas Research Travel Grant. 1999.

Meagen Wyckoff. University of St. Thomas Young Scholars Award. 1998

Student Researchers

Current

  • Rachel Eaton
  • Emily Novak

Previous

  • Nikki Duxbury graduated from UST in 2006.
  • Stephanie Churchill graduated from UST in summer 2003.
  • Clare Croteau graduated from UST in summer 2002.
  • Colleen Kaster graduated from UST in December 2001. She is currently living in Australia where she is training to be an accountant.
  • Angie Clausen is now Angie Streit and is a graduate student in the School of Biological Sciences at Washington State University.
  • Becky Mooney is currently a medical student at the Mayo Clinic, Rochester, Minnesota.
  • Keith Hultman is currently a graduate student in the Department of Genetics at Washington University, St. Louis.
  • Karen Bresee completed an M.Sc. from the Department of Plant Breeding and Plant Genetics at the University of Wisconsin, Madison in 2003.
  • Meagen Wyckoff completed an M.Sc. in the Department of Agronomy and Plant Genetics at the University of Minnesota in 2002.