Publications

In review:

Abdusalam, A., D. Tan and S.-M. Chang. 2017. Sexual expression and reproductive output in the ephemeral Geranium transversale (Geraniaceae) are correlated with the environmental conditions. Submitted to American Journal of Botany.

Alvarado-Serrano, D.F., M. Van Etten, S.-M. Chang and R.S. Baucom. Landscape connectivity of a noxious invasive weed: promises and challenges of landscape genomics for knowledge-based weed management? Submitted to Evolutionary Applications, in review. BioRxiv 

Published or in press:

Van Etten, M., S.-M. Chang, J. K. Conner, and R. S. Baucom. 2017. Not all weeds are created equal: a database approach uncovers differences in the sexual system of native and introduced weeds. Ecology and Evolution. 7(8): 2636 -  2642

Kuester, A., E. Fall, S.-M. Chang & R. S. Baucom. 2017. Shifts in outcrossing rates and changes to floral traits are associated with the evolution of herbicide resistance in the common morning glory. Ecology Letters (20): 41-49.

Spigler, R., T. Kostas & S.-M. Chang. 2016. Inbreeding depression and drift load in small populations at demographic disequilibrium Evolution, doi:10.1111/evo.13103

Kuester, A., A. Wilson, S.-M. Chang & R. S. Baucom. 2016. A resurrection experiment finds evidence of both reduced genetic diversity and adaptive evolution in the agricultural weed Ipomoea purpurea. Molecular Ecology 25:4508-4520,

Van Etten, M., A. Kuester, S.-M. Chang and R. Baucom. 2016. Reduced seed viability and reductions in plant size provide evidence for costs of glyphosate resistance in an agricultural weed. Evolution.70(10) 2199-2120.

McCallum, B. F. & S.-M. Chang. 2016.  Pollen competition in style: effects of pollen size on male siring success in the hermaphroditic common morning glory, Ipomoea purpurea (L.) Roth. American Journal of Botany – Special Issue on “Ecology and Evolution of Pollen Performance”. 103(3): 460-470.

Kuester, A., S.-M. Chang & R.S. Baucom. 2015. The geographic mosaic of herbicide resistance evolution in the common morning glory, Ipomoea purpurea: Evidence for resistance hotspots and low genetic differentiation across the landscape. Evolutionary Application. 8(8):821-33.

Chase M. Mason, Dorothy A. Christopher, Ashley M. Rea, Lauren A. Eserman, Alex J. Pilote, Nicholas L. Batora, and Shu-Mei Chang. 2015. Low inbreeding depression and high plasticity under abiotic stress in the common morning glory Ipomoea purpurea (Convolvulaceae). Weed Science. 63(4): 864-876

Van Etten, M.L. & S.-M. Chang. 2014.  Context-dependent pollinator-discrimination acts against females in the gynodioecious Geranium maculatum. Annals of Botany. 114:1769-1778.

Van Etten, M. L., A. C. Deen, J. L. Hamrick, and S.-M. Chang. 2014.  Mating system contributes only slightly to female maintenance in gynodioecious Geranium maculatum (Geraniaceae). Heredity. 113: 464-470.

Sylvain Losdat, S-M Chang, J. M. Reid. 2014. Inbreeding depression in male gametic performance. J. Evolutionary Biology. 27: 992-1011.

Kuester, A., B.R. Foltz, G Lor, S-M Chang, JL Bennetzen and RS Baucom. 2012.  Development and characterization of simple sequence repeat loci for the common morning glory, Ipomoea purpurea (Convolvulaceae). Molecular Ecology Resources 13(2): 341-343.

Chang, S-M, E. Gonzales, E. Pardini and JL Hamrick. 2011.. Encounters of the old foes on the new battleground for an invasive tree, Albizia julibrissin Durazz (Fabaceae).  Biological Invasions. Biological Invasions 13:1043-1053

Baucom R. S., S-M Chang, J.M. Kniskern, M.D. Rausher, and J.R. Stinchcombe.  2011. Morning glory as a powerful model in ecological genomics: tracing adaptation through both natural and artificial selection.  Heredity 107(5): 377-385.

Spigler, R., J. L. Hamrick, and S.-M. Chang. 2010.  Increased inbreeding but not homozygosity in small populations of Sabatia angularis (Gentianaceae). Plant Systematics and Evolution 284: 131-140.

Van Etten, M. L. and S.-M. Chang. 2009.  Effects of environmental heterogeneity on the distribution of genders within and among populations in a gynodioecious species, Geranium maculatum. New Phytologist 183: 649-660.

Spigler, R. and S.-M. Chang. 2009. Pollen limitation and reproduction varies with population size in experimental populations of Sabatia angularis (Gentianaceae). Botany 87: 330-338.

Spigler, R. and S.-M. Chang. 2008.  Effects of plant abundance on reproductive success in the widespread, native biennial Sabatia angularis (Gentianaceae): spatial scale matters. J. of Ecology.96:323-333.

Gonzales, E., J. L. Hamrick and S.-M. Chang. 2008. Identification of glacial refugia in south-eastern North America by phylogeographical analyses of a forest understory plant, Trillium cuneatum. Journal of Biogeography. 35:844-852.

Baucom, R. S., R. Mauricio and S.-M. Chang. 2008. Glyphosate induces transient male sterility in Ipomoea purpurea. Botany 86: 587-594.

Van Etten, M. L., L. B. Prevost, A. C. Deen, B. V. Ortiz, L. A. Donovan and S.-M. Chang. 2008. Gender differences in reproductive and physiological traits in a gynodioecious species, Geranium maculatum (Geraniaceae). International Journal of Plant Sciences.169: 271-279.

Chang, S.-M. 2007. Gender specific inbreeding depression in a gynodioecious plant, Geranium maculatum (Geraniaceae). American Journal of Botany 94(7): 1193-1204.

Young, S. A., S.-M. Chang and R. R. Sharitz. 2007.  Reproductive Ecology of a Federally Endangered Legume, Baptisia arachnifera, and its More Widespread Congener, Baptisia lanceolata (Fabaceae). American Journal of Botany 94(2) 228-236.

Shaw, R. G. and S.-M. Chang. 2006. Gene action of new mutations in Arabidopsis thaliana. Genetics. 172: 1855-1865.

Chang, S.-M. 2006.  Female compensation through the quantity and quality of progeny in a gynodioecious plant, Geranium maculatum (Geraniaceae) American Journal of Botany: 93: 263-270.

Chang, S.-M. , Y. Lu , and M. D. Rausher. 2005. Neutral Evolution of the Non-binding Region of the Anthocyanin Regulatory Gene Ipmyb1 in Ipomoea. Genetics (170): 1967-1978.

Chang, S.- M. and R. G. Shaw. 2003. The contribution of spontaneous mutation to variation in environmental response in Arabidopsis thaliana: Responses to nutrients. Evolution 57:984-994.

Rausher, M. D. and S.-M. Chang. 1999. Stabilization of mixed-mating systems by differences in the magnitude of inbreeding depression for male and female fitness components. American Naturalist 155: 242-248.

Chang, S.-M. and M. D. Rausher. 1999. The role of inbreeding depression in maintaining a mixed mating system in the common morning glory, Ipomoea purpurea. Evolution 53(5): 1366-1376.

Chang, S.-M. and M. D. Rausher. 1998. Frequency-dependent pollen discounting contributes to the maintenance of a mixed mating system in the common morning glory, Ipomoea purpurea. American Naturalist 152(5): 671-683.

 

Pedagogical Research:

Armstrong, N.A. and S.-M. Chang. 2007. Location, Location, Location: Does seat location affect achievement in very large classes? Journal of College Science Teaching. 37(2): 54-58.

Armstrong, N.A., S.-M. Chang and P. Brickman. 2007. Cooperative learning in industrial sized biology classes. CBE Life Science Education. 6: 163-171.

Armstrong, N.A., C. S. Wallace and S.-M. Chang. 2008. Learning from Writing Scientific Arguments in College Biology. Journal of Research in Science Education 38:483-499.