Underlining indicates authors who were undergraduates at the time the study occurred.

  1. Ryan, W. H., E. S. Gornish, L. Christenson, S. L. Halpern, S. Henderson, G. LeBuhn, and T. E. Miller. 2017. A toolbox for initiating and managing long-term data collections with students and citizen scientists. American Biology Teacher 79(1): 28-34.
  1. Kim. T.N., B.J. Spiesman, A.L. Buchanan, A.S. Hakes, S.L. Halpern, B.D. Inouye, A. Kilanowski, N. Kortessis, D.W. McNutt, A.C. Merwin, and N. Underwood. 2015. Selective manipulation of a non-dominant plant and its herbivores influences an old-field plant community. Plant Ecology 216:1029–1045 DOI: 10.1007/s11258-015-0487-3
  1. Halpern, S. L., D. M. Bednar‡, A. Chisholm‡, and N. Underwood. 2014. Plant-mediated effects of host plant density on a specialist herbivore of Solanum carolinense. Ecological Entomology: 39: 217-225 DOI: 10.1111/een.12088
  1. McNutt, D.W., S.L. Halpern, K. Barrows‡, and N. Underwood. 2012. Intraspecific competition increases the evolutionary potential of tolerance to insect herbivory in the perennial plant Solanum carolinense. Oecologia. 17(4): 1033-1044. DOI 10.1007/s00442-012-2377-x
  1. Underwood, N. and S. L. Halpern. 2012. Insect herbivores, density dependence, and the performance of the perennial herb Solanum carolinense. Ecology 93(5): 1026-1035.
  1. Underwood, N., S. L. Halpern, and Klein, C.‡ 2011. Effect of host plant genotype and neighboring plants on strawberry aphid movement in the greenhouse and field. The American Midland Naturalist 165(1): 38-49.
  1. Halpern, S. L., L. S. Adler, and M. Wink. 2010. Leaf herbivory and drought stress affect floral attractive and defensive traits in Nicotiana quadrivalvis. Oecologia 163: 961-971. doi:10.1007/s00442-010-1651-z
  1. Burns, J. H., S. L. Halpern, and A. A. Winn. 2007. Do low-quality environments limit the advantages of opportunism in invasive species? Biological Invasions 9: 213-225.
  1. Halpern, S. L.* and N. Underwood*. 2006. Approaches for testing assumptions about the role of herbivores in plant population dynamics. Journal of Applied Ecology 43: 922-929.
  1. Halpern, S. L. 2005. Sources and consequences of variation in seed size in Lupinus perennis (Fabaceae): Adaptive and non-adaptive hypotheses. American Journal of Botany 92(2): 205-213.
  1. McKone, M.M. and S. L. Halpern. 2003. The evolution of androgenesis. The American Naturalist 161(4): 641-656.
  1. Paciorek, C.*, B. Moyer*, R. Levin*, and S. L. Halpern*. 1995. Pollen consumption by the hummingbird flower mite Proctolaelaps kirmsei and possible fitness effects on Hamelia patens. Biotropica 27(2): 258-262.

*co-authors contributed equally