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Stacey L. Halpern Associate Professor, Biology 503-352-3109 UC Box: A121 Office: Strain 209 |
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Education Postdoctoral research in Biological Science, Florida State University, Tallahassee, FL from 2003-2005. Ph.D. in Ecology, Evolution and Behavior, University of Minnesota, Minneapolis, MN in 2003. Bachelor of Arts in Biology, Carleton College, Northfield, MN in 1993. |
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Published Works 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. In press, published on-line June 2012 DOI 10.1007/s00442-012-2377-x 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. 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. 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 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. Halpern, S.L. and N. Underwood. 2005. approaches for testing assumptions about the role of herbivores in plant population dynamics. Journal of Applied Ecology 43: 922-929. 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. McKone, M.M. and S. L. Halpern. 2003. The evolution of androgenesis. The American Naturalist 161(4): 641-656.
* author was an undergraduate when research was conducted
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Presentations Halpern, S. L., N. Underwood, and B. D. Inouye. 2012 Insect herbivore effects on population dynamics of the clonal weed Solanum Carolinense. Ecological Society of America (ESA), Portland, OR Hakes, A. S., N. Underwood, S. L. Halpern, and B. Inouye, 2011. Effects of insect damage and plant density on the spatial patterns of plant populations. Ecological Society of America (ESA), Austin, TX. Racaza, R. and S.L. Halpern. 2010. Murdock Undergraduate Research Conference (MUR), Linfield College, McMinnville, OR Huot, O.B.*, T. Kim, S.L. Halpern, and N. Underwood. 2010. Induced response of Solanum carolinense to dispersed and aggregated leaf damage. ESA, Pittsburgh, PA. Staver, K. *, D.W. McNutt, S.L. Halpern, and N. Underwood. 2010. Effect of herbivore density on Leptinotarsa juncta oviposition preference and larval performance on its host plant, Solanum carolinense. ESA, Pittsburgh, PA. Halpern, S.L., D. McNutt, K. Barrows*, M. Martinez*, and N. Underwood. 2009. Effects of plant density on tolerance to herbivore damage in Solanum carolinense. ESA, Albuquerque, NM Weekley, J. * and S.L. Halpern. 2007. The effect of host plant density on growth rate of a specialist beetle. MUR, Willamette University, Salem, OR. Halpern, S. L., N. underwood and D. Bednar*. 2007. Plant density affects interactions between Solanum carolinense and its insect herbivores: implications for plant population regulation. ESA, San Jose, CA. Bednar, D. * and S. L. Halpern. 2006. Density of Solanum carolinense affects oviposition of Leptinotarsa juncta. MUR, University of Portland, Portland, OR. Halpern, S.L. 2004. Selection on morphology and phenology across water environments: Possible responses to climate change in Lupinus perennis. ESA, Portland, OR. *author was an undergraduate when research was conducted
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Course Information At Pacific University, all faculty teach a variety of different courses. Typically, we do not use graduate teaching assistants, which means that your classes will be taught by professors and that you will have plenty of opportunites to get to know the faculty in your discipline. Below I have listed some of the courses that I teach. We are always developing and trying out new classes, so the list may change now and then. You can use the links to the left to read descriptions of the courses listed below. BIOL 202 General Biology I BIOL 155 Conservation and Global Change BIOL 155 Plants & Civilization BIOL 305 Ecology BIOL 316 Plant Biology BIOL 444 Evolution BIOL 490 Senior Capstone Experience | |