Faculty
444 Russell Laboratories
1630 Linden Drive
Madison, WI 53706
Ph.D. University of California at Berkeley, 1997 (Entomology)
BS University of Illinois at Urbana-Champaign, 1991 (summa cum laude, Honors Biology)
My research group works broadly in the field of landscape ecology in both agricultural and natural systems. In Wisconsin agricultural landscapes, we are interested in understanding how beneficial insects, such as pollinators and lady beetles, utilize the landscape and carry out important functions such as pollination of crops and suppression of insect pests. These studies have brought us to work on arthropod conservation in working landscapes, with particular work on agriculturally-dominated corn-soybeans landscapes and . Recently we have expanded to examine how pollinators of cranberries and now apples, are affected by landscape composition and structure as well as management within a crop. Our group is also an active member of the Great Lakes Bioenergy Research Center as part of the team looking to develop sustainable bioenergy crops. In non-agricultural work, we have partnered with colleagues in Limnology, Agronomy and Forest and Wildlife Ecology to examine landscape-level linkages between lake and terrestrial ecosystems. This work takes place at subarctic lakes in norther Iceland where chironomid midge emergences act to link these two disparate ecosystem together.
Entom 541 Insect Biological Control (3 cr), every odd fall
Zool 750 Problems in Oceanography (3 cr), every odd fall
Entom 875 / FE&M 875 Multivariate Analysis of Ecological Community Data (2 cr), every odd fall
Ento 875 - Ecolunch (1 cr), every semester
Southern Association of Agricultural Experiment Station Directors (SAAESD) National Excellence in Multistate Research Award (S-1039 Multistate group), 2008
Affiliate, Department of Zoology, University of Wisconsin - Madison
Agroecology Program, University of Wisconsin - Madison
in press
Dreyer, J., D. Hoekman, and C. Gratton. 2012. Lake-derived midges increase abundance of shoreline terrestrial arthropods via multiple trophic pathway. Oikos. doi: 10.1111/j.1600-0706.2011.19588.x.
Werling, B., J. P. Harmon, C. S. Straub, and C. Gratton. 2012. Influence of native North American prairie grasses on predation of an insect herbivore of potato. Biological Control. doi: 10.1016/j.biocontrol.2011.11.009.
Mueller, E. E., R. Groves, and C. Gratton. 2012. Crop and non-crop plants as potential reservoir hosts for alfalfa mosaic virus and cucumber mosaic virus for spread to succulent snap bean, Phaseolus vulgaris. Plant Disease. doi: 10.1094/PDIS-02-11-0089.
Bennett, A., and C. Gratton. 2012. Local and landscape variables impact parasitoid assemblages across an urbanization gradient. Landscape and Urban Planning 104:26-33.
2011
Forbes, K. J., and C. Gratton. 2011. Stable isotopes reveal different patterns of inter‐crop dispersal in two ladybeetle species. Ecological Entomology 36:396-400. doi: 10.1111/j.1365-2311.2011.01268.x.
Hoekman, D., J. Dreyer, R. Jackson, P. Townsend, and C. Gratton. 2011. Lake to land subsidies: experimental addition of aquatic insects increases terrestrial arthropod densities. Ecology 92:2063-2072. doi: 10.1890/11-0160.1.
Hong, S. C., A. MacGuidwin, and C. Gratton. 2011. Soybean aphid and soybean cyst nematode interactions in the field and effects on soybean yield. Journal of Economic Entomology 104:1568-1574. doi: 10.1603/EC11084.
Lyon, A., M. M. Bell, C. Gratton, and R. Jackson. 2011. Farming without a recipe: Wisconsin graziers and new directions for agricultural science. Journal of Rural Studies. doi: 10.1016/j.jrurstud.2011.04.002.
Mallinger, R. E., D. B. Hogg, and C. Gratton. 2011. Methyl salicylate attracts natural enemies and reduces populations of soybean aphids (Hemiptera: Aphididae) in soybean agroecosystems. Journal of Economic Entomology 104:115-124. doi: 10.1603/EC10253.
Meehan, T. D., B. P. Werling, D. A. Landis, and C. Gratton. 2011. Agricultural landscape simplification and insecticide use in the Midwestern United States. Proceedings of the National Academy of Sciences 108:11500 -11505. doi: 10.1073/pnas.1100751108.
Oates, L. G., D. J. Undersander, C. Gratton, M. M. Bell, and R. D. Jackson. 2011. Management-intensive rotational grazing enhances forage production and quality of subhumid cool-season pastures. Crop science 51:892–901.
Straub, C. S., A. R. Ives, and C. Gratton. 2011. Evidence for a trade-off between host-range breadth and host-use efficiency in aphid parasitoids. American Naturalist 177:389-395.
Vander Zanden, M. J., and C. Gratton. 2011. Blowin’ in the wind: Reciprocal airborne carbon fluxes between lakes and land. Canadian Journal of Fisheries & Aquatic Sciences 68:170-182. doi: 10.1139/F10-157.
Werling, B. P., T. D. Meehan, C. Gratton, and D. A. Landis. 2011. Influence of habitat and landscape perenniality on insect natural enemies in three candidate biofuel crops. Biological Control 59:304-312. doi: 10.1016/j.biocontrol.2011.06.014.
Werling, B., T. Meehan, B. Robertson, C. Gratton, and D. A. Landis. 2011. Biocontrol potential varies with changes in biofuel–crop plant communities and landscape perenniality. Global Change Biology Bioenergy. doi: 10.1111/j.1757-1707.2011.01092.x.
Wood, E., A. Pidgeon, C. Gratton, and T. . Wilder. 2011. Effects of oak barrens habitat management for Karner blue butterfly (Lycaeides samuelis) on the avian community. Biological Conservation 144:3117-3126. doi: 10.1016/j.biocon.2011.10.010.
2010
Meehan, T. D., A. H. Hurlbert, and C. Gratton. 2010. Bird communities in future bioenergy landscapes of the Upper Midwest. Proceedings of the National Academy of Sciences 107:18533 -18538. doi: 10.1073/pnas.1008475107.
Gaines, H. R., and C. Gratton. 2010. Seed predation increases with ground beetle diversity in a Wisconsin (USA) potato agroecosystem. Agriculture, Ecosystems & Environment 137:329-336. doi: 10.1016/j.agee.2010.03.003.
Gardiner, M., D. Landis, C. Gratton, N. Schmidt, M. O'Neal, E. Mueller, J. Chacon, and G. Heimpel. 2010. Landscape composition influences the activity density of Carabidae and Arachnida in soybean fields. Biological Control 55:11-19. doi: 10.1016/j.biocontrol.2010.06.008.
Hong, S. C., J. Donaldson, and C. Gratton. 2010. Soybean cyst nematode effects on soybean aphid preference and performance in the laboratory. Environmental Entomology 39:1561-1569. doi: 10.1603/EN10091.
Noma, T., C. Gratton, M. Colunga-Garcia, M. J. Brewer, E. E. Mueller, K. A. G. Wyckhuys, G. E. Heimpel, and M. E. O'Neal. 2010. Relationship of soybean aphid (Hemiptera: Aphididae) to soybean plant nutrients, landscape structure, and natural enemies. Environmental Entomology 39:31-41. doi: 10.1603/EN09073.
Webster, C. R., D. J. Flaspohler, R. D. Jackson, T. Meehan, and C. Gratton. 2010. Diversity, productivity and landscape-level effects in North American grasslands managed for biomass production. Biofuels 1:451-461.
Werling, B. P., and C. Gratton. 2010. Local and broadscale landscape structure differentially impact predation of two potato pests. Ecological Applications 20:1114-1125. doi: 10.1890/09-0597.1.
2009
Gratton, C., and M. Vander Zanden. 2009. Flux of aquatic insect productivity to land: comparison of lentic and lotic ecosystems. Ecology 90:2689-2699. doi: 10.1890/08-1546.1.
Gardiner, M. M., D. A. Landis, C. Gratton, N. Schmidt, M. O'Neal, E. Mueller, J. Chacon, G. E. Heimpel, and C. D. DiFonzo. 2009. Landscape composition influences patterns of native and exotic lady beetle abundance. Diversity and Distributions 15:554–564.
Gardiner, M., D. Landis, C. Gratton, C. DiFonzo, M. O'Neal, J. Chacon, M. Wayo, N. Schmidt, E. Mueller, and G. Heimpel. 2009. Landscape diversity enhances biological control of an introduced crop pest in the North-central USA. Ecological Applications 19:143-154.
Zedler, P., T. Anchor, D. Knuteson, C. Gratton, and J. Barzen. 2009. Using an ecolabel to promote on-farm conservation: the Wisconsin Healthy Grown experience. International Journal of Agricultural Sustainability 7:61-74. doi: 10.3763/ijas.2009.0394.
2008
Bell, M. M., A. Lyon, C. Gratton, and R. D. Jackson. 2008. The productivity of variability: an agroecological hypothesis. International Journal of Agricultural Sustainability 6:233-235. doi: 10.3763/ijas.2008.c5004.
Gratton, C., J. Donaldson, and M. J. Vander Zanden. 2008. Ecosystem linkages between lakes and the surrounding terrestrial landscape in northeast Iceland. Ecosystems 11:764-774. doi: 10.1007/s10021-008-9158-8.
Werling, B. P., and C. Gratton. 2008. Influence of field margins and landscape context on ground beetle diversity in Wisconsin (USA) potato fields. Agriculture, Ecosystems & Environment 128:104-108. doi: 10.1016/j.agee.2008.05.007.
2007
Donaldson, J. R., and C. Gratton. 2007. Antagonistic effects of soybean viruses on soybean aphid performance. Environmental Entomology 36:918-25.
Donaldson, J., S. Myers, and C. Gratton. 2007. Density-dependent responses of soybean aphid (Aphis glycines Matsumura) populations to generalist predators in mid to late season soybean fields. Biological Control 43:111-118.
Jackson, R., M. Bell, and C. Gratton. 2007. Assessing ecosystem variance at different scales to generalize about pasture management in southern Wisconsin. Agriculture Ecosystems & Environment 122:471-478. doi: 10.1016/j.agee.2007.03.004.
2006
Gratton, C. 2006. Interactions between a native Silkmoth Hemileuca sp. and an invasive wetland plant, Lythrum salicaria. Annals of the Entomological Society of America 99:1182-1190.
Gratton, C., and R. F. Denno. 2006. Arthropod food web restoration following removal of an invasive wetland plant. Ecological Applications 16:622-631.
Gratton, C., and A. Forbes. 2006. Changes in δ13C stable isotopes in multiple tissues of insect predators fed isotopically distinct prey. Oecologia 147:615-624. doi: 10.1007/s00442-005-0322-y.
Myers, S. W., and C. Gratton. 2006. Influence of potassium fertility on soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae) population dynamics at a field and regional scale. Environmental Entomology 35:219-227.
Vander Zanden, M. J., J. D. Olden, and C. Gratton. 2006. Food-web approaches in restoration ecology. Pages 165-189 in D. A. Falk, M. Palmer, and J. Zedler, editors. Foundations of Restoration Ecology.
2005
Denno, R., D. Lewis, and C. Gratton. 2005. Spatial variation in the relative strength of top-down and bottom-up forces: causes and consequences for phytophagous insect populations. Annales Zoologici Fennici 42:295-311.
Gratton, C., and R. F. Denno. 2005. Restoration of arthropod assemblages in a Spartina salt marsh following removal of the invasive plant Phragmites australis. Restoration Ecology 13:358-372.
Myers, S. W., C. Gratton, R. P. Wolkowski, D. B. Hogg, and J. L. Wedberg. 2005. Effect of soil potassium availability on soybean aphid (Hemiptera: Aphididae) population dynamics and soybean yield. Journal of Economic Entomology 98:113–120.
2004
Denno, R., M. Mitter, G. Langellotto, C. Gratton, and D. Finke. 2004. Interactions between a hunting spider and a web-builder: consequences of intraguild predation and cannibalism for prey suppression. Ecological Entomology 29:566-577.
Matsumura, M., G. Trafelet-Smith, C. Gratton, D. Finke, W. Fagan, and R. Denno. 2004. Does intraguild predation enhance predator performance? A stoichiometric perspective. Ecology 85:2601-2615.
2003
Denno, R., C. Gratton, H. Dobel, and D. Finke. 2003. Predation risk affects relative strength of top-down and bottom-up impacts on insect herbivores. Ecology 84:1032-1044.
Gratton, C., and R. F. Denno. 2003. Inter-year carryover effects of a nutrient pulse on Spartina plants, herbivores, and natural enemies. Ecology 84:2692-2707.
Gratton, C., and R. F. Denno. 2003. Seasonal shift from bottom-up to top-down impact in phytophagous insect populations. Oecologia 134:487-495.
2002
Denno, R., C. Gratton, M. Peterson, G. Langellotto, D. Finke, and A. Huberty. 2002. Bottom-up forces mediate natural-enemy impact in a phytophagous insect community. Ecology 83:1443-1458.
2001
Denno, R. F., C. Gratton, and G. A. Langellotto. 2001. Significance of habitat persistence and dimensionality in the evolution of insect dispersal strategies. Pages 235-259 in I. Woiwod, C. Thomas, and D. Reynolds, editors. Insect movement: mechanisms and consequences. CAB International, London, U.K.
Denno, R., D. Hawthorne, B. Thorne, and C. Gratton. 2001b. Reduced flight capability in British Virgin Island populations of a wing-dimorphic insect: the role of habitat isolation, persistence, and structure. Ecological Entomology 26:25-36.
Gratton, C., and S. Welter. 2001. Parasitism of natural populations of Liriomyza helianthi spencer and Calycomyza platyptera (Thomson) (Diptera : Agromyzidae). Biological Control 22:81-97. doi: 10.1006/bcon.2001.0954.
2000
Denno, R., M. Peterson, C. Gratton, J. Cheng, G. Langellotto, A. Huberty, and D. Finke. 2000. Feeding-induced changes in plant quality mediate interspecific competition between sap-feeding herbivores. Ecology 81:1814-1827.
1999
Gratton, C., and S. Welter. 1999. Does "enemy-free space" exist? Experimental host shifts of an herbivorous fly. Ecology 80:773-785.
1998
Gratton, C., and S. Welter. 1998. Oviposition preference and larval performance of Liriomyza helianthi (Diptera : Agromyzidae) on normal and novel host plants. Environmental Entomology 27:926-935.
Please visit the Gratton laboratory website for information about our research program:
http://entomology.wisc.edu/%7Egratton/index.html
Rachel Mallinger
Graduate Student
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Postdoctoral research associate
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Graduate Student
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Associate Scientist
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Graduate Research Assistant
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