Shefferson, R.P. and C.C. Cowden. In press. Organismal senescence in plant-
fungal symbioses. In: Shefferson, R.P., R. Salguero-Gomez, and O. Jones (ed.).
The evolution of senescence in the Tree of Life. Cambridge University Press,
Cambridge, United Kingdom.
Goolsby, E.W. In press. Phylogenetic comparative methods for evaluating the
evolutionary history of function-valued traits. Systematic Biology.
Shefferson, R.P. and R. Salguero-Gomez. 2015. Eco-evolutionary dynamics in
plants: interactive processes at overlapping timescales and their implications.
Journal of Ecology 103:789-797.
Goolsby, E.W. and C.M. Mason. 2015. Toward a more physiologically and
evolutionarily relevant definition of metal hyperaccumulation in plants. Frontiers in
Plant Science 6:33.
Shefferson, R.P., R.J. Warren II, and H.R. Pulliam. 2014. Life history costs make
perfect sproutingmaladaptive in two herbaceous perennials. Journal of Ecology 102:
1318-1328. Read the Journal of Ecology blog for a rundown.
Donovan, L.A., C.M. Mason, A.W. Bowsher, E.W. Goolsby, and C.D. Ishibashi. 2014.
Ecological and evolutionary lability of plant traits affecting carbon and nutrient
cycling. Journal of Ecology 102:302-314.
Kartzinel, T.K., R.P. Shefferson, and D.W. Trapnell. 2013. Relative importance of
pollen and seed dispersal across a Neotropical mountain landscape for an
epiphytic orchid. Molecular Ecology 22:6048-6059.
Kartzinel, T.K., D.W. Trapnell, and R.P. Shefferson. 2013. Highly diverse and
variable mycorrhizal symbiosis in a rare epiphyte is unrelated to broad
biogeographic or environmental features. Molecular Ecology 22:5949-5961.
Goolsby, E.W., C.M. Mason, J.T. Wojcik, A.M. Jordan, and M.C. Black. 2013. Acute
and chronic effects of diphenhydramine and sertraline mixtures in Ceriodaphnia
dubia. Environmental Toxicology and Chemistry 32:2866-2869.
Milton, E.F., E.W. Goolsby, and L.A. Donovan. 2013. Cultivated Helianthus annuus
differs from two wild relatives in germination response to simulated drought stress.
Helia 36:35-46.
Bunch, W.D., C.C. Cowden, N. Wurzburger, and R.P. Shefferson. 2013. Geography
and soil nutrients drive the distribution of fungal associations in a lady's slipper
orchid, Cypripedium acaule. Botany (formerly Canadian Journal of Botany) 91:850-
Kartzinel, T.K., D.W. Trapnell, and R.P. Shefferson. 2013. Critical importance of
large native trees for conservation of Neotropical epiphyte. Journal of Ecology 101:
Shefferson, R.P. 2013. Virtual issue: In honour of Michael Hutchings. Journal of
Ecology (online).
Cowden, C.C. and R.P. Shefferson. 2013. Diversity of root-associated fungi of
mature Habenaria radiata and Epipactis thunbergii colonizing manmade wetlands
in Hiroshima Prefecture, Japan. Mycoscience 54:327-334.
Goolsby, E.W. 2013. NextGen results. Science 339:30-32.
Shefferson, R.P. and D.A. Roach. 2013. Longitudinal analysis in Plantago: strength
of selection and reverse age analysis reveal age-indeterminate senescence.
Journal of Ecology 101:577-584.
Salguero-Gomez, R., R.P. Shefferson, and M.J. Hutchings. 2013. Plants do not
count... or do they? New perspectives on the universality of senescence. Journal of
Ecology 101:545-554.
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.
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.
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
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
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. 2013. How do seasonal patterns and stochastic
variation in demographic rates affect fitness of a continuously flowering Neotropical
milkweed (Asclepias curassavica)? 1st Meeting of the Evolutionary Demography
Society, University of South Denmark, Odense, Denmark.
R.P. Shefferson. 2013. The evolution of sprouting: why do some plants shun the
sunlight? 1st Meeting of the Evolutionary Demography Society, University of South
Denmark, Odense, Denmark.


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.
Copyright 2015 Richard P. Shefferson.  All rights reserved.