Publications

JOURNAL ARTICLES

		Shefferson, R.P. and D.A. Roach. In press. The triple helix of Plantago lanceolata:
		genetics and the environment interact to determine population dynamics. Ecology.
		Shefferson, R.P., T. Kull, K. Tali, and K.M. Kellett. 2012 . Linking vegetative dormancy
		to fitness in two long-lived herbaceous perennials. EcoSphere 3:13.
		Brys, R., R.P. Shefferson, and H. Jacquemyn. 2011 . Impact of intrinsic and extrinsic
		variables on flowering and reproductive allocation patterns in a perennial iteroparous grassland herb: a ten-year experiment. Oecologia 166:293-303.
		Shefferson, R.P., M.K. McCormick, D.F. Whigham, and J.P. O’Neill. 2011 . Life history
		strategy in herbaceous perennials: inferring demographic patterns from aboveground dynamics of a primarily subterranean, myco-heterotrophic orchid. Oikos 120:1291-1300.
		Shefferson, R.P. 2010. Why are life histories so variable? Nature Education
		Knowledge 1(12):1.
		Shefferson, R.P., C.C. Cowden, M.K. McCormick, T. Yukawa, Y. Ogura-Tsujita, and T.
		Hashimoto. 2010. Evolution of host breadth in broad interactions: mycorrhizal specificity in East Asian and North American rattlesnake plantains (Goodyera spp.) and their fungal hosts. Molecular Ecology 19:3008-3017.
		Shefferson, R.P. and D.A. Roach. 2010 . Longitudinal analysis of Plantago: adaptive
		benefits of iteroparity in a short-lived, herbaceous perennial. Ecology 91:441-447.
		Shefferson, R.P. 2009 . The evolutionary ecology of vegetative dormancy in mature
		herbaceous perennials. Journal of Ecology 97:1000-1009.
		Mesipuu, M., R.P. Shefferson, and T. Kull. 2009. Weather and herbivores influence
		fertility in the endangered fern Botrychium multifidum (S.G. Gmel.) Rupr. Plant Ecology 203:23-31.
		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. 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., 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 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.
		Shefferson, R.P., T. Kull, and K. Tali. 2006. Demographic response to shading and
		defoliation in two woodland orchids. Folia Geobotanica 41:95-106
		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. 2005. Adult whole-plant dormancy induced by
		stress in long-lived orchids. Ecology 86:3099-3104
		Shefferson, R.P., M. Weiss, T. Kull, and D.L. Taylor. 2005. High specificity generally
		characterizes mycorrhizal association in rare lady's slipper orchids, genus Cypripedium. Molecular Ecology 14:613-626
		Bruns, T. and R.P. Shefferson. 2004. Evolutionary studies of ectomycorrhizal 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
		Shefferson, R.P., B. K. Sandercock, J. Proper, and S. R. Beissinger. 2001.
		Estimating dormancy and survival of a rare herbacious perennial using mark- recapture models. Ecology 82: 145-156

BOOK CHAPTERS

		Shefferson, R.P. 2002. Dormancy and survival in rare terrestrial orchids. Pp. 53-64
		in P. Kindlmann, J.H. Willems, and D.F. Whigham, editors. Trends and fluctuations and underlying mechanisms in terrestrial orchid populations. Backhuys Publishers, Leiden, the Netherlands

DISSERTATIONS AND THESES

		Shefferson, R.P. 2004. Evolutionary ecology of rare geophytes: dormancy and
		mycorrhizae in Cypripedium species. Ph.D. dissertation, University of California at Berkeley, Berkeley, California. 199p.
		Shefferson, R.P. 2000. Demographic applications of mark-recapture models to
		populations of rare herbaceous perennials. M.S. thesis, University of California at Berkeley, Berkeley, California. 95p.

POSTERS

		Kellett , K. and R.P. Shefferson. 2011. Evaluating effects of stress on orchid
		populations with integral projection models. 96th Annual Meeting of the Ecological Society of America, Austin, Texas, USA.
		Bunch , W.D. and R.P. Shefferson. 2011. Linking soil nutrient availability and fungal
		assocation in a rare orchid, Cypripedium acaule. 96th Annual Meeting of the Ecological Society of America, Austin, Texas, USA.
		Kartzinel, T.R., W.D. Bunch, C.C. Cowden, D.W. Trapnell, and R.P. Shefferson. 2011.
		Diverse suites of mycorrhizal fungi vary among populations of the Neotropical lady's slipper orchid, Phragmipedium longifolium. 96th Annual Meeting of the Ecological Society of America, Austin, Texas, USA.
		Willis , S. and R.P. Shefferson. 2011. Diversity of mycorrhizal fungi colonizing
		Estonian mine tailings. Conference for Undergraduate Research Opportunities, University of Georgia, Athens, Georgia, USA.
		Cowden, C.C., S. Willis, and R.P. Shefferson. 2010. Mycorrhizal species dominate
		the soil-fungal community in Estonian oil shale-ash hills. 95th Annual Meeting of the Ecological Society of America. Pittsburgh, Pennsylvania, USA.
		Shefferson, R.P., D.L. Taylor, and S . Adams. 200 5 . Lady-slipper orchid mycorrhizal
		associations reveal specificity suggestive of resource fragmentation and resource tracking. The Mycological Society of America / The Mycological Society of Japan Joint Meeting 2005, Hilo, Hawai'i, USA.
		Shefferson, R.P., B.K. Sandercock, J. Proper, and S.R. Beissinger. 1999. Evaluating
		survival and dormancy rates of rare herbaceous perennials with mark-recapture statistics. Population Viability Analysis: Assessing Models for Recovering Endangered Species, San Diego, California, USA.

Publications