University of Tokyo
Ph.D. - University of California, Berkeley
Evolutionary history of mycorrhizae and other plant-microbe interactions; evolution of senescence and dormancy in long-lived plants; mycorrhizal aspects of succession; evolutionary ecology of mycorrhizal networks and microbial feedbacks
Shefferson, R.P., T. Kull, and K. Tali. 2008. Mycorrhizal interactions of orchids colonizing Estonian mine tailings hills. American Journal of Botany 95:156-164.
Shefferson, R.P., D.L. Taylor, M. Weiss, S. Garnica, M.K. McCormick, S. Adams, H.M. Gray, J.W. McFarland, T. Kull, K. Tali, T. Yukawa, T. Kawahara, K. Miyoshi, and Y.-I. Lee. 2007. The evolutionary history of mycorrhizal specificity among lady's slipper orchids. Evolution 61:1380-1390.
Shefferson, R.P. and E. L. Simms. 2007. Costs and benefits of fruiting to future reproduction in two dormancy-prone orchids. Journal of Ecology 95:865-875.
Shefferson, R.P. and K. Tali. 2007. Dormancy is associated with decreased adult survival in the burnt orchid, Neotinea ustulata. Journal of Ecology 95:217-225.
Shefferson, R.P. 2006. Survival costs of adult dormancy and the confounding influence of size in lady's slipper orchids, genus Cypripedium. Oikos 115:253-262.
Simms, E.L., D.L. Taylor, J. Povich, R.P. Shefferson, M. Urbina, and Y. Tauszick. 2006. An empirical test of partner choice mechanisms in a legume-rhizobium interaction. Proceedings of the Royal Society of London Series B, Biological Sciences 273:77-81.
Shefferson, R.P., T. Kull, and K. Tali. 2006. Demographic response to shading and defoliation in two woodland orchids. Folia Geobotanica 41:95-106.
Shefferson, R.P., M. Weiss, T. Kull, and D.L. Taylor. 2005. High specificity generally characterizes mycorrhizal association in rare lady's slipper orchid! s, genus Cypripedium. Molecular Ecology 14:613-626.
Shefferson, R.P., T. Kull, and K. Tali. 2005. Adult whole-plant dormancy induced by stress in long-lived orchids. Ecology 86:3099-3104.
Bruns, T. and R.P. Shefferson. 2004. Evolutionary studies of mycorrhizal fungi: milestones and future directions. Canadian Journal of Botany 82:1122-1132.
Shefferson, R.P., J. Proper, S.R. Beissinger, and E.L. Simms. 2003. Life history trade-offs in a rare orchid: the costs of flowering, dormancy, and sprouting. Ecology 84:1199-1206.