Short CV - Fall 2012

Associate Professor
Department of Bioagricultural Sciences and Pest Management
Colorado State University
Fort Collins, CO 80523-1177


Ph.D., Department of Entomology, Cornell University. March 1999. Co-Advisors: S. Via and R. B. Root.

B.A., University of California, Berkeley.


Full Professor, Colorado State University, Department of Bioagricultural Sciences and Pest Management

Fulbright Scholar,
Centre de Biologie et Gestion des Populations, INRA, France. 2009-2010.

Faculty Member, Colorado State University, Graduate Degree Program in Ecology (GDPE)

Postdoctoral research associate with Dr. Richard Harrison, Department of Ecology and Evolutionary Biology, Cornell University. 1999-2000

Postdoctoral research associate with Drs. John Losey and Linda Rayor, Department of Entomology, Cornell University. 1999


Society for the Study of Evolution
Ecological Society of America
Entomology Society of America
Western Society of Weed Science
International Organization for Biological Control


Ecological Applications
Invasive Plant Science and Management
Biological Control (board member)

PUBLICATIONS (posted articles are for personal use only)

Journal Articles (*current or former graduate students in the Hufbauer lab)

Kumschick S, RA Hufbauer C *Alba, DM Blumenthal. In press. Evolution of fast-growing and more resistant phenotypes in introduced common mullein (Verbascum thapsus).Journal of Ecology

Dunn, A, et al. In press. Indirect effects of parasites on invasions. Functional Ecology.

*Alba C, MD Bowers, RA Hufbauer. In press. Combining optimal defense theory and the evolutionary dilemma model to refine predictions regarding plant invasion. Ecology (yay Chrissy!)

Roderick GK, RA Hufbauer and M Navajas. 2012. Evolution and biological control. Evolutionary Applications. 5:410-423.

Fauvergue, X, E Vercken, T. Malausa, RA Hufbauer. 2012. The biology of small introduced populations, with special reference to biological control. Evolutionary Applications 5:410-423.

*Wilbur, HD, RA Hufbauer. 2012 . Timing control efforts to limit seedset of common mullein (Verbascum thapsus). Invasive Plant Science and Management 5:390-394. (yay, Hannah!)

*Alba C, RA Hufbauer. 2012. A biogeographic comparison of Verbascum thapsus ecology reveals differences in performance, herbivory, and surrounding plant community. Biological Invasions. DOI 10.1007/s10530-012-0247-4

Hufbauer, RA, B Facon, V. Ravigné, J Turgeon, J Foucaud, CE Lee, O Rey, A Estoup. 2012. Anthropogenically-induced adaptation to invade (AIAI: Contemporary adaptation to human-altered habitats within the native range can promote invasions. Evolutionary Applications. 5:89-101. PDF

Blair, AC and RA Hufbauer. 2012. Hybridization and invasion: An experimental test with diffuse knapweed (Centaurea diffusa Lam.). Evolutionary Applications. 5:17-28. PDF

*Alba C, RA Hufbauer, MD Bowers and DM Blumenthal. 2011. Evolution of growth but not structural or chemical defense in Verbascum thapsus (common mullein) following introduction to North America. Biological Invasions 13:2379-2389. PDF

Kühn, I et al. (editorial board). 2011. Open minded and open access: introducing NeoBiota, a new peer-reviewed journal of biological invasions. NeoBiota. 9:1-12. PDF

Kumschick S, C *Alba, RA Hufbauer, W Nentwig. 2011. Weak or strong invaders? A comparison of impact between the native and invaded ranges of mammals and birds alien to Europe. Diversity and Distributions 17:663-672. PDF

Gaskin GF, M-C Bon, MJW Cock, M Cristofaro, A De Biase, R De Clerk-Floate, CA Ellison, HL Hinz, RA Hufbauer, MH Julien, R Sforza. 2011. Applying molecular-based approaches to classical biological control of weeds. Biological Control 58:1-21. PDF

Facon B, RA Hufbauer, A. Tayeh, A. Loiseau, E. Lombaert, R. Vitalis, T. Guillemaud, JG Lundgren, A. Estoup. 2011. Inbreeding depression is purged int he invasive insect Harmonia axyridis. Current Biology 21:424-427

*Rauth S, HL Hinz, E Geber, RA Hufbauer. 2011. The benefits of pre-release population genetics: A case study using Ceutorhynchus scrobicolis, a candidate agent of garlic mustard, Alliaria petiolata. Biological Control. 56:65-75

*Blair, AC, and RA Hufbauer. 2010. Hybridization and invasion: one of North America’s most devastating invasive plants shows evidence for a history of hybridization. Evolutionary Applications. 3:40-51On-line early PDF

*Rauth S, and RA Hufbauer. 2009. PCR-RFLP assays for discerning three weevil stem feeders (Ceutorhynchus spp.) (Col.: Curculionidae) on garlic mustard (Alliaria petiolata). Biocontrol Science and Technology. 9:999-1005

Duke SO, FE Dayan, J Bajsa, KM Meepagala, RA Hufbauer and AC *Blair. 2009. The case against (-)-catechin involvement in allelopathy of Centaurea stoebe (spotted knapweed).  Plant Signaling and Behavior. 4:422-424

*Blair AC, and RA Hufbauer. 2009.  Geographic patterns of interpecific hybridization between spotted knapweed (Centaurea stoebe stoebe) and diffuse knapweed (C. diffusa). Invasive Plant Science and Management. 2:55-69. PDF

*Blair AC, LA Weston, SJ Nissen, GR Brunk, RA Hufbauer. 2009. The importance of analytical techniques in allelopathy, with the reported allelochemical catechin as an example. Biological Invasions. 11:325-332 PDF

*Marrs, RA, R Sforza, RA Hufbauer. 2008 . Evidence for multiple introductions of Centaurea stoebe micranthos (spotted knapweed, Asteraceae) to North America. Molecular Ecology. 17:4197-4208. PDF

*Blair AC, U Schaffner, P Häfliger, SK Meyer, RA Hufbauer. 2008. How do biological control and hybridization affect enemy escape? Biological Control. 46:358-370. PDF

Steltzer, H, RA Hufbauer, JM Welker, M Casalis, PF Sullivan and R. Chimner. 2008 . Frequent sexual reproduction and high intraspecific variation in Salix arctica: implications for a terrestrial feedback to climate change in the High Arctic. Journal of Geophysical Research – Biogeosciences. 113:G03S10. PDF

Kao, RH, CS Brown, RA Hufbauer. 2008. High phenotypic and molecular variation in downy brome (Bromus tectorum). Invasive Plant Science and Management. 1:216-225. PDF

Hufbauer, RA. 2008. Biological Invasions: Paradox lost and paradise gained. Current Biology. 18:R246-R247. PDF

*Marrs, RA, R Sforza, RA Hufbauer. 2008. When invasion increases population genetic structure: A study with Centaurea diffusa. Biological Invasions. 10:561-572. PDF

Lau, JA, K. Puliafico, M Schwarzlaender, JA Kopshever, H Steltzer, EP Jarvis, SY Strauss, and RA Hufbauer. 2008. Experimental artifacts of activated carbon on plant growth complicate the inference of allelopathic effects. New Phytologist. 178:412-423. PDF

Hufbauer, RA and R Sforza. 2008. Multiple introductions of two invasive Centaurea taxa into North America. Diversity and Distributions. 14:252-261 PDF

Blumenthal, D and RA Hufbauer2007. Evolution of increased size but not competitive ability among 14 invasive plant species. Ecology. 88:2758-2765. PDF

Morris, WF, RA Hufbauer, AA Agrawal, JD Bever, GS Gilbert, JL Maron, CE Mitchell, IM Parker, AG Power, EW Seabloom, ME Torchin, DP Vázquez. 2007. Direct and interactive effects of enemies and mutualists on plant performance: a meta-analysis. Ecology. 88:1021-1029. PDF

*MacKinnon, DK, RA Hufbauer, AP Norton. 2007. Evaluating host use of an accidentally introduced herbivore on two invasive toadflaxes. Biological Control. 41:184-189. PDF

*Blair AC, SJ Nissen, GR Brunk, RA Hufbauer. 2006. Lack of evidence for an ecological role of the putative allelochemical (+/-)-catechin in spotted knapweed invasion success. Journal of Chemical Ecology. 32:2327-2331 PDF

*Marrs, RA, RA Hufbauer, SM Bogdanowicz, R Sforza. 2006. Nine polymorphic microsatellite markers in Centaurea stoebe L. [subspecies C. s. stoebe and C. s. micranthos (S. G. Gmelin ex Gugler) Hayek] and C. diffusa Lam (Asteraceae). Molecular Ecology Notes. 6:897-899. PDF

Mitchell, CE, AA Agrawal, JD Bever, GS Gilbert, RA Hufbauer, JN Klironomos, JL Maron, WF Morris, IM Parker, AG Power, EW Seabloom, ME Torchin, DP Vázquez. 2006. Biotic interaction and plant invasions. Ecology Letters. 9:726-740. PDF

*Blair, AC, BG Hanson, GR Brunk, RA *Marrs, P Westra, SJ Nissen, RA Hufbauer. 2005. New techniques and findings in the study of a candidate allelochemical implicated in invasion success. Ecology Letters. 8: 1039-1047 PDF

Hufbauer, RA, GK Roderick.  2005. Microevolution in biological control: Mechanisms, patterns, and processes.  Biological Control. 35:227-239 PDF

*MacKinnon, DK, RA Hufbauer, AP Norton. 2005. Host-plant preference of an inadvertently introduced biological control agent. Entomologia Experimentalis et Applicata. 116: 183-189. PDF

*Lloyd, CJ, RA Hufbauer, AK Jackson, SJ Nissen, and AP Norton. 2005. Pre- and post-introduction patterns in neutral genetic diversity in the leafy spurge gall midge. Biological Control. 33:153-164 PDF

Hufbauer, RA. 2004. Population and ecological genetics of invasions: can we link neutral loci to ecology and management? Weed Technology. 18:1522-1527 PDF

*Lloyd, CJ, AP Norton, RA Hufbauer, SM Bogdanowicz.  2004. Microsatellites isolated from the gall midge Spurgia capitigena (Diptera: Cecidomyiidae), a biological control agent of leafy spurge.  Molecular Ecology Notes. 4:605-607. PDF

Hufbauer, RA. 2004. Observations of sagebrush gall morphology and emergence of Rhopalomyia pomum (Diptera: Cecidomyiidae) and its parasitoids. Western North American Naturalist. 64(3) 224-230. PDF

Hufbauer, RA, SM Bogdanowicz, and RG Harrison. 2004. The population genetics of a biological control introduction: microsatellite and mtDNA variation in native and introduced populations of Aphidius ervi, a parasitoid wasp. Molecular Ecology. 13:337-348. PDF

Losey, JE, RA Hufbauer, R.G. Hartzler. 2003. Enumerating lepidopteran species associated with maize as a first step in risk assessment. Environmental Biosafety Research. 2:247-261. PDF

Hufbauer, RA. 2002. Aphid resistance and parasitoid virulence among host races of the pea aphid: evidence for evolution following a biological control introduction. Ecological Applications. 12(1):66-78. PDF

Hufbauer, RA and RB Root. 2002. Interactive effects of different types of herbivore damage: Trirhabda beetle larvae and Philaenus spittlebugs on goldenrod (Solidago altissima). American Midland Naturalist. 147 (2) :204-213. PDF

Bais, HP, TS Walker, FR Stermitz, RA Hufbauer, and JM Vivanco*. 2002. Enantiomeric dependent phytotoxic and antimicrobial activity of (±)-catechin; a rhizosecreted racemic mixture from Centaurea maculosa (spotted knapweed). Plant Physiology. 128:1173-1179. PDF *Corresponding author

Hufbauer, RA. 2002. Aphid population dynamics: Does resistance to parasitism influence population size? Ecological Entomology. 27:25-32. PDF

Hufbauer, RA. 2001. Pea aphid-parasitoid interactions: Have parasitoids adapted to differential resistance? Ecology. 82(3):717-725. PDF

Hufbauer, RA, SM Bogdanowicz., L Peres and RG Harrison. 2001. Isolation and characterization of microsatellites in Aphidius ervi (Hymenoptera: Braconidae) and their applicability to related species. Molecular Ecology Notes.1(3): 197-199. PDF

Tschenn, J, JE Losey., L Hansen Jesse, JJ Obryki, R Hufbauer. 2001. Effects of corn plants and corn pollen on monarch butterfly oviposition behavior. Environmental Entomology. 30:495-500. PDF

Hufbauer, RA and S Via. 1999. Evolution of an aphid-parasitoid association: variation in resistance to parasitism among aphid populations specialized on different plants. Evolution. 53:1435-1445. PDF

Book and Encyclopedia Chapters

Hufbauer, RA and ME Torchin. 2007.  Integrating Ecological and Evolutionary Theory of Biological Invasions.  Pp. 79-96 in Biological Invasions: Ecological Studies, Vol 193. Springer-Verlag Berlin Heidelberg.

Losey, J.E., J.J. Obrycki, and RA Hufbauer. 2004a. Biosafety Considerations For Transgenic Insecticidal Plants: Non-Target Herbivores, Detritivores, and Pollinators. Pp. 153-155 in Encyclopedia of Plant & Crop Science. Marcel Dekker, Inc. New York. PDF

Losey, J.E., J.J. Obrycki and RA Hufbauer. 2004b. Biosafety Considerations For Transgenic Insecticidal Plants: Non-Target Predators and Parasitoids. Pp 156-159 in Encyclopedia of Plant & Crop Science. Marcel Dekker, Inc. New York. PDF

Losey, JE, JJ Obrycki, and RA Hufbauer. 2001. Impacts of genetically-engineered crops on non-target herbivores: Bt-corn and monarch butterflies as a case study. In D. K. Letourneau and B. E. Burrows eds. Genetically Engineered Organisms: Assessing Environmental and Human Health Effects. CRC Press, New York. Pp. 143-166.

Peer-Reviewed Proceedings

Hufbauer, RA, RA Marrs, AK Jackson, R Sforza, HP Bais, JM Vivanco and SE Carney. 2004. Population structure, ploidy levels and allelopathy of spotted and diffuse knapweed Pp. 121-126 in North America and Eurasia. Proceedings of the XI International Symposium on Biological Control of Weeds, JM Cullen, DT Briese, DJ Kriticos, WM Lonsdale, L Morin, JK Scott eds. CSIRO Entomology, Canberra, Australia.

McClay, AS, MD Crisp, HC Evans, T. Heard, RA Hufbauer, T-K Qin and R. Shaw.  2004.  Centres of origin: do they exist, can we identify them, does it matter? Pp. 619-620 in Proceedings of the XI International Symposium on Biological Control of Weeds, JM Cullen, DT Briese, DJ Kriticos, WM Lonsdale, L Morin, JK Scott eds. CSIRO Entomology, Canberra, Australia. PDF

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