Publications

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Journal Article
J. O. Stireman, Nason, J. D., Heard, S. B., and Seehawer, J. M., “Cascading host-associated genetic differentiation in parasitoids of phytophagous insects”, Proceedings of the Royal Society of London B: Biological Sciences, vol. 273, no. 1586, pp. 523-530, 2006.
K. Halverson, Heard, S. B., Nason, J. D., and III, J. O. Stireman, “Differential attack on diploid, tetraploid, and hexaploid Solidago altissima L. by five insect gallmakers”, Oecologia, vol. 154, no. 4, pp. 755-761, 2008.
S. B. Heard, III, J. O. Stireman, Nason, J. D., Cox, G. H., Kolacz, C. R., and Brown, J. M., “On the elusiveness of enemy-free space: spatial, temporal, and host-plant-related variation in parasitoid attack rates on three gallmakers of goldenrods”, Oecologia, vol. 150, no. 3, pp. 421-434, 2006.
J. O. StiremanIII, Nason, J. D., and Heard, S. B., “Host‐associated genetic differentiation in phytophagous insects: general phenomenon or isolated exceptions? Evidence from a goldenrod‐insect community”, Evolution, vol. 59, no. 12, pp. 2573-2587, 2005.
J. D. Nason, Heard, S. B., and Williams, F. R., “Host‐associated genetic differentiation in the goldenrod elliptical‐gall moth, Gnorimoschema gallaesolidaginis (Lepidoptera: Gelechiidae)”, Evolution, vol. 56, no. 7, pp. 1475-1488, 2002.
K. Halverson, Heard, S. B., Nason, J. D., and Stireman, J. O., “Origins, distribution, and local co-occurrence of polyploid cytotypes in Solidago altissima (Asteraceae)”, American Journal of Botany, vol. 95, no. 1, pp. 50-58, 2008.