|Shefferson, R.P. and D.A. Roach. In press. Longitudinal analysis in Plantago:|
|strength of selection and reverse age analysis reveal age-indeterminate |
senescence. Journal of Ecology.
|Salguero-Gomez, R., R.P. Shefferson, and M.J. Hutchings. In press. Plants don't|
|matter... or do they? New perspectives on the universality of senescence. Journal of |
|Cowden, C.C. and R.P. Shefferson. In press. Diversity of root-associated fungi of|
|mature Habenaria radiata and Epipactis thunbergii colonizing manmade wetlands |
in Hiroshima Prefecture, Japan. Mycoscience.
|Shefferson, R.P. and D.A. Roach. 2012. The triple helix of Plantago lanceolata:|
|genetics and the environment interact to determine population dynamics. Ecology |
|Cowden, C.C. 2012. Game theory, evolutionary stable strategies and the evolution of|
|biological interactions. Nature Education Knowledge 3:6.|
|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.
|Shefferson, R.P. 2010. Why are life histories so variable? Nature Education|
|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.|
|Cowden, C.C. and C.J. Peterson. 2009. A multi-mutualist simulation: applying|
|biological market models to diverse mycorrhizal communities. Ecological Modelling |
|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 |
|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
|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 |
|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.
|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.
|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. 2005. 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.