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Blanke, C., Chikaraishi, Y., Takizawa, Y., Steffan, S., Dharampal, P., & Vander Zanden, M. J. 2017. Comparing compound-specific and bulk stable nitrogen isotope trophic discrimination factors across multiple freshwater fish species and diets. Canadian Journal of Fisheries and Aquatic Sciences

Steffan, Shawn; Chikaraishi, Yoshito; Dharampal, Prarthana; Pauli, Jonathan; Guédot, Christelle; Ohkouchi, Naohiko. (In revision). Unpacking brown food-webs: Animal trophic identity reflects rampant microbivory. Ecology & Evolution.

Takizawa, Y., P.S. Dharampal, S.A. Steffan, Y. Takano, N. Ohkouchi, and Y. Chikaraishi. (In revision). Intra-trophic isotopic discrimination of 15N/14N for amino acids in plant flowers and leaves: Implications for isotopic ecological studies. Ecology & Evolution.

Pauli, J.N., Newsome, S.D., Cook, J.A., Harrod, C., Steffan, S.A., Baker, C.J.O., Ben-David, M., Bloom, D., Bowen, G.J., Cerling,T., Cicero, C., Cook, C., Dohm, M., Dharampal, P.S., Graves, G.R., Gropp, R., Hobson, K.A., Jordan, C., MacFadden, B.J., Pilaar Birch, S., Poelen, J., Ratnasingham, S., Russell, L., Stricker, C.A., Uhen, M.D., Yarnes, C.T., Hayden, B. (In press). Nucleating IsoBank. Proceedings of the National Academy of Sciences USA.


McMahon, E.E., S.A. Steffan, and C. Guédot. (In press) Population densities of lepidopteran pests in selected cranberry varieties in Wisconsin. Journal of Economic Entomology.

Steffan, S.A., P.S. Dharampal, C.R. Currie, and C.T. Hittinger. (In press). Native bees, microbes, and fungicides: Investigations of the mechanism(s) by which fungicides compromise bee health. JoVE.

Mills, N.J., V.P. Jones, C.C. Baker, T.D. Melton, S.A. Steffan, T.R. Unruh, D.R. Horton, P.W. Shearer, K.G. Amarasakare, and E. Miliczky. (In press). Using plant volatile traps to estimate the diversity of natural enemy communities in orchard ecosystems. Biological Control.

Jones, V.P., D.R. Horton, N.J. Mills, T.R. Unruh, C.C. Baker, T.D. Melton, E. Miliczky, S.A. Steffan, and P.W. Shearer. (In press). Evaluating herbivore-induced plant volatiles and floral volatiles for monitoring natural enemies in apple, pear and walnut orchards. Biological Control.

Chasen, E.M., and S.A. Steffan. 2016. Temperature-mediated growth thresholds of the cranberry fruitworm, Acrobasis vaccinii (Lepidoptera: Pyralidae). Environmental Entomology 45: 732-736.


Steffan, S.A., Y. Chikaraishi, C.R. Currie, H. Horn, H.R. Gaines-Day, J.N. Pauli, J.E. Zalapa, and N. Ohkouchi. 2015. Microbes are trophic analogs of animals. PNAS 112, 15119-15124.      

Bernauer, O.M., H.R. Gaines-Day, and S.A. Steffan. 2015. Colonies of bumble bees (Bombus impatiens) produce fewer workers, less bee biomass, and have smaller mother queens following fungicide exposure. Insects 6, 478-488.

S.A. Steffan, Chikaraishi, Y., Horton, D.R., Miliczky, E., Zalapa, J.E., Jones, V.P. and N. Ohkouchi. 2015. Beneficial or not? Decoding carnivore roles in plant protection. Biological Control 91, 34-41.

Deutsch, A.E., C.R. Rodriguez-Saona, J.E. Zalapa, and S.A. Steffan. 2015. Temperature-mediated development thresholds of Sparganothis sulfureana (Lepidoptera: Tortricidae) in cranberries. Environmental Entomology 44: 400-405.

Chikaraishi, Y., S.A. Steffan, Y. Takano, and N. Ohkouchi. 2015. Diet quality influences isotopic discrimination among amino acids in an aquatic vertebrate. Ecology and Evolution 5, 2048-2059

Jones, V.P., D.R. Horton, N.J. Mills, T.R. Unruh, C.C. Baker, T.D. Melton, E. Miliczky, S.A. Steffan, and P.W. Shearer. 2015. Evaluating herbivore-induced plant volatiles and floral volatiles for monitoring natural enemies in apple, pear and walnut orchards. Biological Control.

Schlautman, B., D. Fajardo, T. Bougie, E. Wiesman, J. Polashock, N. Vorsa, S. Steffan, J. Zalapa. Development and validation of 697 novel polymorphic genomic and EST-SSR markers in the American cranberry (Vaccinium macrocarpon Ait.). Molecules 20, 2001-2013.

Pauli, J.N., S.A. Steffan, and S.D. Newsome. 2015. It is time for IsoBank. BioScience 65, 229-230.


Deutsch, A.E., C.R. Rodriguez-Saona, V. Kyryczenko-Roth, J. Sojka, J.E. Zalapa, and S.A. Steffan. 2014. Degree-day benchmarks for Sparganothis sulfureana (Lepidoptera: Tortricidae) development in cranberries. Journal of Economic Entomology 107:2130-2136.

Zalapa, J.E., T.C. Bougie, T.A. Bougie, B.J. Schlautman, E. Wiesman, A. Guzman, D.A. Fajardo, S.A. Steffan, and T. Smith. 2014. Clonal diversity and genetic differentiation revealed by SSR markers in wild Vaccinium macrocarpon and Vaccinium oxycoccos. Annals of Applied Biology 66: 196-207.

Pauli, J., J. Mendoza, S.A. Steffan, C. Cayelan, P.J. Weimer, and Z. Peery. 2014. A syndrome of mutualism reinforces the life history of a sloth. Proceedings of the Royal Society B 281: 20133006. 

Fajardo, D., B. Schlautman, S.A. Steffan, J.J. Polashock, N. Vorsa, and J.E. Zalapa. 2014. The American cranberry mitochondrial genome reveals the presence of selenocysteine (tRNA-Sec and SECIS) insertion machinery in land plants. Gene 536(2): 336-343. 

Chikaraishi, Y., S.A. Steffan, N.O. Ogawa, N.F. Ishikawa, Y. Sasaki, and N. Ohkouchi. 2014. High-resolution food webs based on nitrogen isotopic composition of amino acids. Ecology & Evolution doi: 10.1002/ece3.1103. 


Steffan, S.A., Y. Chikaraishi , D.R. Horton, N. Ohkouchi, M.E. Singleton,  E. Miliczky, D.B. Hogg, V.P. Jones. 2013. Trophic hierarchies illuminated via amino acid isotopic analysis.  PLoS ONE 8(9): e76152.

Fajardo D., J. Morales, H. Zhu , S. Steffan, R. Harbut, N. Bassil, K. Hummer, J. Polashock, N. Vorsa, and J. Zalapa. 2012. Discrimination of American cranberry cultivars and assessment of clonal heterogeneity using microsatellite markers. Plant Molecular Biology Reporter 31:264-271.

Steffan, S.A., J.C. Lee, M.E. Singleton, A. Vilaire, D.B. Walsh, L.S. Lavine, and K. Patten. 2013. Susceptibility of cranberries to Drosophila suzukii (Diptera: Drosophilidae). Journal of Economic Entomology 106:2424-2427.


Gable, J.T., D.W. Crowder, T.D. Northfield, S.A. Steffan, and W.E. Snyder. 2012. Niche engineering reveals complementary resource use. Ecology 93(9): 1994-2000.

Zalapa J.E., H. Cuevas, S. Steffan, H. Zhu, D. Senalik, E. Zeldin, B. McCown, R. Harbut, and P. Simon. 2012. Using next generation sequencing approaches to isolate simple sequence repeat (SSR) in the plant sciences. Methods and Applications of Next-Generation Sequencing in Botany. American Journal of Botany 99:193-208.


Jones, V.P. S.A. Steffan, N.G. Wiman, D.R. Horton, E. Miliczky, Q.H. Zhang, C.C. Baker. Evaluation of herbivore-induced plant volatiles for monitoring green lacewings in Washington apple orchards. Biological Control 56:98-105.


Steffan, S.A., and W.E. Snyder. 2010. Cascading diversity effects transmitted exclusively by behavioral interactions. Ecology 91: 2242-52.

Jones, V.P., S.A. Steffan, L.A. Hull, J.F. Brunner, and D.J. Biddinger. 2010. Effects of the loss of organophosphate pesticides in the US: Opportunities and needs to improve IPM programs. Outlooks on Pest Management 21:161-166.


Prischmann, D.A., S.A. Steffan, and C.M. Anelli. 2009. Insect myths: an interdisciplinary approach fostering active learning. American Entomologist. 55: 228-233.

Daane, K.M., G.Y. Yokota, R. Krugner, S.A. Steffan, P.G. da Silva, R.H. Beede, W.J. Bentley, and G.B. Weinberger. 2005. Large bugs damage pistachio nuts most severely during midseason. California Agriculture. 59: 95-102.

Gullan, P.J., D.A. Downie, and S.A. Steffan.  2003.  A new pest species of the mealybug genus Ferrisia Fullaway (hemiptera: pseudococcidae) from the United States. Annals of the Entomological Society of America. 96:723-737.

Millar, J.G., R.E. Rice, S.A. Steffan, K.M. Daane, E. Cullen, and F.G. Zalom. 2001.  Attraction of female digger wasps, Astata occidentalis Cresson (hymenoptera: sphecidae) to the sex pheromone of the stink bug Thyanta pallidovirens (hemiptera: pentatomidae). Pan-Pacific Entomologist. 77: 244-48.  

Steffan, S.A., K.M. Daane, and D.L. Mahr. 2001. 15N-enrichment of plant tissue to mark phytophagous insects, associated parasitoids, and flower-visiting entomophaga. Entomologia Experimentalis et Applicata. 98: 173-180.

Steffan, S.A., C. Garvey, and D. Sexson. 1998. The 1996 farm bill will enhance the long-term adoption of ecologically sound IPM: the con argument.  American Entomologist. 44: 161-162.

Steffan, S.A. 1997. Flower-visitors of Baccharis pilularis De Candolle subsp. consanguinea (De Candolle) C.B. Wolf (Asteraceae) in Berkeley, California.  Pan-Pacific Entomologist. 73: 52-54.

Wallin, K.F., R. Hofstetter, S. Steffan, and T. Rabey. 1996. Environmental issues associated with enhancing the impact of biological control agents. American Entomologist. 42: 164-165.

Daane, K.M., L.E. Williams, G.Y. Yokota, and S.A. Steffan. 1995. Leafhopper prefers vines with greater amounts of irrigation. California Agriculture. 3: 28-32.