Stephen Pratt

Associate Professor
Faculty
TEMPE Campus
Mailcode
4501

Biography

Stephen Pratt studies the emergence of complex social behavior in leaderless, decentralized groups, particularly social insect colonies. He and the members of his lab use experiments, mathematical models, and computer simulations to understand the behavioral rules and communication networks that allow colonies of ants and bees to act as a collective intelligence. Inspired by the analogy between individual organisms and colonial “superorganisms,” they apply many ideas from psychology and economics to understand group cognition. Professor Pratt also works with engineers to translate lessons from social animals to robot swarms and other human-designed systems, and to develop innovative tools for the analysis of behavior.

Education

  • Ph.D. Neurobiology and Behavior, Cornell University 1997
  • B.A. Biology, Harvard University 1988

Videos

Google Scholar

Publications

Sasaki, T. and Pratt, S.C. (2018) The psychology of superorganisms: Collective decision-making by insect societies. Annual Review of Entomology 63: 259-275.

Marting, P.R., Wcislo, W.T., and Pratt, S.C. (2018) Colony personality and plant health in the Azteca-Cecropia mutualism. Behavioral Ecology 29: 264-271.

Doering, G.N. and Pratt, S.C. (2016) Queen location and nest site preference influence colony reunification by the ant Temnothorax rugatulus. Insectes Sociaux 63: 585-591.

Shaffer, Z., Sasaki, T., Haney, B., Janssen, M., Pratt, S.C., and Fewell, J.H. (2016) The foundress’s dilemma: Group selection for cooperation among queens of the harvester ant, Pogonomyrmex californicus. Scientific Reports 6: 29828.

Buffin, A. and Pratt, S.C. (2016) Cooperative transport by the ant Novomessor cockerelli. Insectes Sociaux 63: 429-438.

Sasaki, T., Penick, C.A., Shaffer, Z., Haight, K.L, Pratt, S.C., and Liebig, J. (2016) A simple behavioral model predicts the emergence of complex animal hierarchies. The American Naturalist 187: 765-775.

Sasaki, T., Janssen, M.A., Shaffer, Z., and Pratt, S.C. (2016) Exploration of unpredictable environments by networked groups. Current Zoology 62: 207-214.

Oldroyd, B.P. and Pratt, S.C. (2015) Comb architecture of the eusocial bees arises from simple rules used during cell building. Advances in Insect Physiology 49: 101-121.

Sasaki, T., Colling, B., Sonnenschein, A., Boggess, M.M., and Pratt, S.C. (2015) Flexibility of collective decision making during house hunting in Temnothorax ants. Behavioral Ecology and Sociobiology 69: 707-714.

Wilson, S., Pavlic, T.P., Kumar, G.P., Buffin, A., Pratt, S.C., and Berman, S. (2014) Design of ant-inspired stochastic control policies for collective transport by robotic swarms. Swarm Intelligence 8(4): 303-327.

Sasaki, T., Hölldobler, B., Millar, J.G., and Pratt, S.C. (2014) A context-dependent alarm signal in the ant Temnothorax rugatulus. Journal of Experimental Biology 217: 3229-3236.

Overson, R., Gadau, J., Clark, R.M., Pratt, S.C. and Fewell, J.H. (2014) Behavioral transitions with the evolution of cooperative nest founding by harvester ant queens. Behavioral Ecology and Sociobiology 68: 21-30.

Sasaki, T. and Pratt, S.C. (2013) Ants learn to rely on more informative attributes during decision making. Biology Letters 9: 20130667.

Shaffer, Z., Sasaki, T. and Pratt, S.C. (2013) Linear recruitment leads to allocation and flexibility in collective foraging by ants. Animal Behaviour 86: 967-975.

Sasaki, T., Granovskiy, B., Mann, R.P., Sumpter, D.J.T. and Pratt, S.C. (2013) Ant colonies outperform individuals when a sensory discrimination task is difficult but not when it is easy. Proceedings of the National Academy of Sciences 110: 13769-13773.

Bowens, S., Glatt, D. and Pratt, S.C. (2013) Visual navigation during colony emigration by the ant Temnothorax rugatulus. PLoS ONE 8: e64367.

Sasaki, T. and Pratt, S.C. (2012) Groups have a larger cognitive capacity than individuals. Current Biology 22: R827-R829.

Berman, S., Lindsey, Q., Sakar, M.S., Kumar, V. and Pratt, S.C. (2011) Experimental study and modeling of group retrieval in ants as an approach to collective transport in swarm robotic systems. Proceedings of the IEEE 99: 1470-1481.

Sasaki, T. and Pratt, S.C. (2011) Emergence of group rationality from irrational individuals. Behavioral Ecology 22:276-281.

Nasonia Genome Working Group (2010) Functional and evolutionary insights from the genomes of three parasitoid Nasonia species. Science 327: 343-348.

Edwards, S.C. and Pratt, S.C. (2009) Rationality in collective decision-making by ants. Proceedings of the Royal Society of London B 276: 3655-3661.

Sumpter, D.J.T. and Pratt, S.C. (2009) Quorum responses and consensus decision-making. Philosophical Transactions of the Royal Society B 364: 743-753.

Healey, C.I.M. and Pratt, S.C. (2008) The effect of prior experience on nest site evaluation by the ant Temnothorax curvispinosus. Animal Behaviour 76: 893-899.

Pratt. S.C. (2008) Efficiency and regulation of recruitment during colony emigration by the ant Temnothorax curvispinosus. Behavioral Ecology and Sociobiology 62: 1369-1376.

Loomes, K.M., Stevens, S.A., O’Brien, M.L., Gonzalez, D.M., Ryan, M.J., Segalov, M., Dormans, N.J., Mimoto, M.S., Gibson, J.D., Sewell, W., Schaffer, A.A., Nah, H.D., Rappaport, E.F., Pratt, S.C., Dunwoodie, S.L. and Kusumi, K. (2007) Dll3 and Notch1 genetic interactions model axial segmental and craniofacial malformations of human birth defects. Developmental Dynamics 236: 2943-2951.

William, D.A., Saitta, B., Gibson, J.D., Traas, J., Markov, V., Gonzalez, D.M., Sewell, W., Anderson, D.M., Pratt, S.C., Rappaport, E.F. and Kusumi, K. (2007) Identification of oscillatory genes in somitogenesis from functional genomic analysis of a human mesenchymal stem cell model. Developmental Biology 305: 172-186.

Pratt, S.C. and Sumpter, D.J.T. (2006) A tunable algorithm for collective decision-making. Proceedings of the National Academy of Sciences 103: 15906-15910.

Balch, T., Dellaert, F., Feldman, A., Guillory, A., Isbell, C., Khan, Z., Pratt, S.C., Stein, A. and Wilde, H. (2006) How multi-robot systems research will accelerate our understanding of social animal behavior. Proceedings of the IEEE 94: 1445-1463.

Gabriel, A., Dapprich, J., Kunkel, M., Gresham, D., Pratt, S.C. and Dunham, M. (2006) Global mapping of transposon location, PLoS Genetics 2: 2026-2038.

Ruderfer, D., Pratt, S.C., Seidel, H. and Kruglyak, L. (2006) Population genomic analysis of outcrossing and recombination in yeast. Nature Genetics 38: 1077-1081.

Gresham, D., Ruderfer, D. M., Pratt, S.C., Schacherer, J., Dunham, M., Botstein, D. and Kruglyak, L. (2006) Genome-wide mapping of polymorphisms at nucleotide resolution with a single DNA microarray. Science 311: 1932-1936.

Pratt, S.C. (2005) Behavioral mechanisms of collective nest-site choice by the ant Temnothorax curvispinosus. Insectes Sociaux 52: 383-392.

Pratt, S.C., Sumpter, D.J.T., Mallon, E.B. and Franks, N.R. (2005) An agent-based model of collective nest choice by the ant Temnothorax albipennis. Animal Behaviour 70: 1023-1036.

Pratt, S.C. (2005) Quorum sensing by encounter rates in the ant Temnothorax albipennis. Behavioral Ecology 16: 488-496.

Pratt, S.C. (2004) Collective control of the timing and type of comb construction by honey bees (Apis mellifera). Apidologie 35: 193-205.

Sumpter, D.J.T. and Pratt, S.C. (2003) A modeling framework for understanding social insect foraging. Behavioral Ecology and Sociobiology 53: 131-144.

McLeman, M.A., Pratt, S.C., and Franks, N.R. (2002) Navigation using visual landmarks by the ant Leptothorax albipennis. Insectes Sociaux 49: 203-208.

Franks, N.R., Pratt, S.C., Britton, N.F., Mallon, E.B., and Sumpter, D.J.T. (2002) Information flow, opinion-polling and collective intelligence in house-hunting social insects. Philosophical Transactions: Biological Sciences 357: 1567-1584.

Britton, N.F., Franks, N.R., Pratt, S.C., and Seeley, T.D. (2002) Deciding on a new home: how do honey bees agree? Proceedings of the Royal Society of London B 269: 1383-1388.

Pratt, S.C., Mallon, E.B., Sumpter, D.J.T., and Franks, N.R. (2002) Quorum sensing, recruitment, and collective decision-making during colony emigration by the ant Leptothorax albipennis. Behavioral Ecology and Sociobiology 52: 117-127.

Pratt, S.C., Brooks, S.E. and Franks, N.R. (2001) The use of edges in visual navigation by the ant Leptothorax albipennis. Ethology 107: 1125-1136.

Mallon, E.B., Pratt, S.C., and Franks, N.R. (2001) Individual and collective decision-making during nest site selection by the ant Leptothorax albipennis. Behavioral Ecology and Sociobiology 50: 352-359.

Pratt, S.C. and Pierce, N.E. (2001) The cavity-dwelling ant Leptothorax curvispinosus uses nest geometry to discriminate among potential homes. Animal Behaviour 62: 281-287.

Pratt, S.C., Daly, M.J. and Kruglyak, L. (2000) Exact multipoint quantitative-trait linkage analysis in pedigrees by variance components. American Journal of Human Genetics 66: 1153-1157.

Pratt, S.C. (2000) Gravity-independent orientation of honeycomb cells. Naturwissenschaften 87: 33-35.

Pratt, S.C. (1999) Optimal timing of comb construction by honey bee colonies: a dynamic programming model and experimental tests. Behavioral Ecology and Sociobiology 46: 30-42.

Pratt, S.C. (1998) Condition-dependent timing of comb construction by honey bee colonies: How do workers know when to start building? Animal Behaviour 56: 603-610.

Pratt, S.C. (1998) Decentralized control of drone comb construction in honey bee colonies. Behavioral Ecology and Sociobiology 42: 193-205.

Pratt, S.C., Kühnholz, S., Seeley, T.D. and Weidenmüller, A. (1996) Worker piping associated with foraging in undisturbed queenright colonies of honey bees. Apidologie 27: 13-20.

Pratt, S.C. (1994) Ecology and behavior of Gnamptogenys horni  (Formicidae: Ponerinae). Insectes Sociaux 41: 255-262.

Pratt, S.C., Calabi, P. and Carlin, N.F. (1994) Division of labor in Ponera pennsylvannica  (Formicidae: Ponerinae). Insectes Sociaux 41: 43-61.

Pratt, S.C. (1989) Recruitment and other communication behavior in the ponerine ant Ectatomma ruidum. Ethology 81: 313-331.

Research Activity

  • Pratt,Stephen*. Emergent computation in collective decision making by the crevice-dwelling rock ant Temnothorax rugatulus. NSF-PHY(9/1/2016 - 8/31/2019).
  • Pratt,Stephen*. CIF: Large: Collaborative Research: Cooperation and Learning over Cognitive Networks. NSF-CISE-CCF(9/1/2010 - 8/31/2016).
  • Pratt,Stephen*. Collaborative Research: Automating the Large-Scale Measurement of Insect Behavior. NSF-BIO-DBI(9/1/2010 - 8/31/2014).
  • Pratt,Stephen*. HUNT: Heterogeneous Unmanned Networked Teams. UNIV OF PENNSYLVANIA(5/1/2008 - 12/31/2014).

Courses

Fall 2018
Course Number Course Title
BIO 415 Biometry
BIO 492 Honors Directed Study
BIO 493 Honors Thesis
MIC 495 Undergraduate Research
MBB 495 Undergraduate Research
BIO 495 Undergraduate Research
BIO 614 Biometry
Summer 2018
Course Number Course Title
BIO 495 Undergraduate Research
Spring 2018
Course Number Course Title
BIO 435 Rsch Technique/Animal Behavior
BIO 492 Honors Directed Study
BIO 495 Undergraduate Research
HPS 590 Reading and Conference
ANB 601 Strategies in Animal Behavior
Fall 2017
Course Number Course Title
BIO 189 Life Sciences Career Paths
BIO 415 Biometry
BIO 493 Honors Thesis
BIO 495 Undergraduate Research
MIC 495 Undergraduate Research
MBB 495 Undergraduate Research
PLB 583 Fieldwork
BIO 584 Internship
PLB 584 Internship
BIO 590 Reading and Conference
MCB 590 Reading and Conference
MIC 590 Reading and Conference
PLB 590 Reading and Conference
EVO 590 Reading and Conference
MIC 591 Seminar
MCB 591 Seminar
PLB 591 Seminar
BIO 591 Seminar
MIC 592 Research
BIO 592 Research
PLB 592 Research
MCB 592 Research
BIO 595 Continuing Registration
MIC 595 Continuing Registration
MCB 595 Continuing Registration
PLB 595 Continuing Registration
BIO 599 Thesis
PLB 599 Thesis
MIC 599 Thesis
MCB 599 Thesis
BIO 614 Biometry
BIO 784 Internship
MCB 790 Reading and Conference
MIC 790 Reading and Conference
ELS 790 Reading and Conference
BIO 790 Reading and Conference
ANB 790 Reading and Conference
NEU 790 Reading and Conference
HPS 790 Reading and Conference
EVO 790 Reading and Conference
BIO 791 Seminar
NEU 792 Research
HPS 792 Research
BIO 792 Research
ELS 792 Research
ANB 792 Research
EVO 792 Research
MCB 792 Research
ELS 795 Continuing Registration
NEU 795 Continuing Registration
HPS 795 Continuing Registration
MIC 795 Continuing Registration
ANB 795 Continuing Registration
EVO 795 Continuing Registration
MCB 795 Continuing Registration
BIO 795 Continuing Registration
ANB 799 Dissertation
BIO 799 Dissertation
ELS 799 Dissertation
HPS 799 Dissertation
EVO 799 Dissertation
MIC 799 Dissertation
MCB 799 Dissertation
NEU 799 Dissertation
Summer 2017
Course Number Course Title
BIO 495 Undergraduate Research
Spring 2017
Course Number Course Title
BIO 415 Biometry
BIO 492 Honors Directed Study
MBB 495 Undergraduate Research
BIO 495 Undergraduate Research
BIO 614 Biometry
Fall 2016
Course Number Course Title
BIO 189 Life Sciences Career Paths
BIO 436 Sociobiology & Behavioral Ecol
BIO 493 Honors Thesis
BIO 495 Undergraduate Research
BIO 499 Individualized Instruction
Summer 2016
Course Number Course Title
BIO 495 Undergraduate Research
Spring 2016
Course Number Course Title
BIO 340 General Genetics
BIO 394 Special Topics
BIO 492 Honors Directed Study
BIO 495 Undergraduate Research
ANB 602 Current Issues In Behavior
Fall 2015
Course Number Course Title
BIO 415 Biometry
BIO 493 Honors Thesis
BIO 495 Undergraduate Research
Summer 2015
Course Number Course Title
BIO 495 Undergraduate Research
Spring 2015
Course Number Course Title
BIO 495 Undergraduate Research
Fall 2014
Course Number Course Title
BIO 189 Life Sciences Career Paths
BIO 415 Biometry
BIO 493 Honors Thesis
Summer 2014
Course Number Course Title
BIO 495 Undergraduate Research
Spring 2014
Course Number Course Title
BIO 492 Honors Directed Study
BIO 493 Honors Thesis
BIO 495 Undergraduate Research

Presentations

Invited talks

Decentralized mechanisms of collective behavior in social insects. Department of Biology Seminar, Colorado State University, Fort Collins, December 7, 2016.

Collective cognition by insect societies. Department of Ecology and Evolutionary Biology Seminar, University of Colorado, Boulder, November 4, 2016.

Collective cognition by insect societies. Department of Entomology Colloquium, University of Illinois, Champaign-Urbana, October 24, 2016.

Collective cognition by insect societies. USDA Arid Land Agricultural Research Center, Maricopa, Arizona, October 5, 2015.

Mechanisms of collective behavior by insect societies. Ant Course, Southwestern Research Station, Portal, Arizona, August 14, 2015.

Collective cognition by insect societies. Mathematical Institute, University of Uppsala, Sweden, May 6, 2015.

Collective cognition by insect societies. School of Biological Sciences, University of Sydney, Australia, March 20, 2015.

Psychology of a superorganism: Collective decision-making by ant colonies. Department of Biology, Northern Arizona University, April 12, 2012.

Psychology of a superorganism: Collective decision-making by ant colonies. Strategic Studies Group, Naval War College, Newport, Rhode Island, November 14, 2011.

Psychology of a superorganism: Collective decision-making by ant colonies. Department of Economics, Boston University, March 31, 2011.

Collective decision-making in ants: The interplay of group and individual cognition. Groningen Lectures in Theoretical Biology, University of Groningen, Netherlands, January 13, 2010.

The role of quorum sensing in the collective decisions of insect societies. Center for Insect Science Fall Hexapodium, University of Arizona, Tucson, Arizona, December 7, 2007.

Collective decision-making by ant colonies: Linking group and individual behavior. University of Pennsylvania, Philadelphia, Pennsylvania, March 16, 2007.

From individual behavior to collective cognition in decision-making by ants. University of Missouri, Columbia, Missouri, October 18, 2006.

A tunable algorithm for collective decision-making by ant colonies. Arizona State University, Tempe, Arizona, August 22, 2005.

How ants choose a new nest: an algorithm for collective decision-making. University of Ume�, Sweden, April 13, 2005.

From individual behavior to collective cognition in decision-making by ants. University of Minnesota, St. Paul, Minnesota, February 21, 2005.

From individual to collective behavior in nest site selection by ants. University of Oxford, United Kingdom, May 13, 2004.

Individual recruitment rules underlying collective choice of nest sites by ants. Harvard University, Cambridge, Massachusetts, September 3, 2002.

Quorum sensing, recruitment, and collective decision-making during colony emigration by the ant Leptothorax albipennis. Cornell University, Ithaca, New York, February 21, 2002.

From individual behavior to collective decisions: how emigrating ant colonies choose a new nest site. University of Bristol, Bristol, United Kingdom, May 16, 2000.

Functional design of an insect society: how honey bee colonies control the timing and type of comb construction. Yale University, New Haven, Connecticut, February 9, 2000.

Optimal timing of comb construction by honey bee colonies: a dynamic programming model and experimental tests. University of W�rzburg, W�rzburg, Germany, February 24, 1999.

 

Conference presentations

Pratt, S.C. Mechanisms of collective behavior by insect societies. 1st International Symposium on Swarm Behavior and Bio-inspired Robotics, Kyoto, Japan, October 30, 2015.

Pratt, S.C. Distributed information processing by insect societies. 2nd Workshop on Biological Distributed Algorithms, Austin, Texas, October 11, 2014.

Pratt, S.C. and Pavlic, T.P. Sequential-sampling models of quorum detection in house-hunting ants. 17th International Congress of the International Union for the Study of Social Insects, Cairns, Australia, July 13-18, 2014.

Pratt, S.C. Collective cognition by insect societies. Collective Intelligence Conference, Cambridge, Massachusetts, June 11, 2014.

Pratt, S.C. Distributed information processing by insect societies. 1st IEEE Global Conference on Signal and Information Processing, Austin, Texas, December 3, 2013.

Pratt, S.C. Collective decision-making in ants. 60th Annual Meeting of the Entomological Society of America, Knoxville, Tennessee, November 11, 2012.

Pratt, S.C. Collective intelligence of insect societies: Understanding the algorithmic basis of behavior. 2012 meeting of the Computational Social Science Society of the Americas, Santa Fe, New Mexico, September 20, 2012.

Pratt, S.C. Psychology of a superorganism: Collective decision-making by ant colonies. Interdisciplinary Workshop on Collective Decisions, Paris School of Economics, Paris, France, July 1, 2012.

Pratt, S.C., Berman, S., Kumar, V., Lindsey, Q., and Sakar M.S. Collective transport by ants as a model for robot teams (Poster). Annual Meeting of the Society for Integrative and Comparative Biology, Salt Lake City, Utah, 2011.

Pratt, S.C. Collective decision-making in ants: The interplay of group and individual cognition. 16th International Congress of the International Union for the Study of Social Insects, Copenhagen, Denmark, 2010.

Pratt, S.C. Collective decision-making in ants: The interplay of group and individual cognition. 47th annual meeting of the Animal Behavior Society, Williamsburg, Virginia, 2010.

Pratt, S.C. Ant colonies as distributed information processors. National Science Foundation Workshop on Distributed Processing over Cognitive Networks, Los Angeles, California, November 20, 2009.

Pratt, S.C. Decision-making by ants: Rational groups of irrational individuals? Third Workshop on Swarming in Natural and Engineering Systems, Block Island, Rhode Island, June 4, 2009.

Pratt, S.C. Discovering the algorithms that coordinate animal behavior. Kickoff meeting for the Office of Naval Research HUNT project, University of Pennsylvania, Philadelphia, Pennsylvania, September 18, 2008.

Pratt, S.C. The interaction of group and individual decision-making during nest-site selection by ants. Workshop on Systems Biology of Decision Making, Mathematical Biosciences Institute at The Ohio State University, Columbus, Ohio, June 20, 2008.

Pratt, S.C. Collective decision-making by ant colonies: Linking group and individual behavior. Workshop on Modeling Complex Biological Systems, Center for Interdisciplinary Mathematics, University of Uppsala, Sweden, April 17, 2008.

Pratt, S.C. Quorum responses and consensus decision-making. Group as Individual in Social Dynamics, 1st International Conference of the ASU Center for Social Dynamics and Complexity, Tempe, Arizona, 2008.

Pratt, S.C. The role of quorum sensing in the collective decisions of insect societies. 55th Annual Meeting of the Entomological Society of America, San Diego, California, 2007.

Pratt, S.C. Collective decision-making by ant colonies: Linking group and individual behavior. Robotics Science and Systems Conference: Workshop on Algorithmic Equivalences Between Biological and Robotic Swarms, Atlanta, Georgia, June 30, 2007.

Pratt, S.C. Rationality in collective and individual decision-making by ants. Second Workshop on Swarming in Natural and Engineered Systems, Philadelphia, Pennsylvania, May 16, 2007.

Pratt, S.C. Irrationality in collective decision-making by ants. 15th International Congress of the International Union for the Study of Social Insects, Washington, D.C., 2006.

Pratt, S.C. A tunable algorithm for collective decision-making by ant colonies. Workshop on Swarming in Natural and Engineered Systems, Napa, California, August 3, 2005.

Pratt, S.C. A tradeoff between speed and accuracy of collective nest site choice by ants. Annual Meeting of the North American Section of the International Union for the Study of Social Insects, Camp Tontozona, Arizona, 2004.

Pratt, S.C. Detection of a nestmate quorum via encounter rates in the ant Leptothorax albipennis. 2nd International Workshop on the Mathematics and Algorithms of Social Insects, Atlanta, Georgia, 2003.

Pratt, S.C. Detection of a nestmate quorum via encounter rates in the ant Leptothorax albipennis. 51st Annual Meeting of the Entomological Society of America, Cincinnati, Ohio, 2003.

Pratt, S.C. Individual recruitment rules underlying collective choice of nest sites by ants. Fondation des Treilles Workshop on Self-organization and Collective Decision-Making by Animal Societies, Tourtours, France, August 30, 2002.

Pratt, S.C. Collective decision-making in ants. Symposium on Multilevel Selection at the 39th annual meeting of the Animal Behavior Society, Bloomington, Indiana, July 16, 2002.

Pratt, S.C., Mallon, E.B., Sumpter, D.J.T., and Franks, N.R. Quorum-sensing and collective decision-making during colony emigration by the ant Leptothorax albipennis. 14th International Congress of the International Union for the Study of Social Insects, Sapporo, Japan, 2002.

Pratt, S.C. Quorum-sensing and collective decision-making during colony emigration by the ant Leptothorax albipennis. 9th Biennial Congress of the International Society for Behavioral Ecology, Montreal, Canada, 2002.

Pratt, S.C., Mallon, E.B., Sumpter, D.J.T., and Franks, N.R. From individual to collective behavior in nest site selection by the ant Leptothorax albipennis.  Workshop on the Mathematics of Social Insects, Isaac Newton Institute for Mathematical Sciences, University of Cambridge, 2001.

Pratt, S.C., Mallon, E.B., Sumpter, D.J.T., and Franks, N.R. From individual to collective behavior in nest site selection by the ant Leptothorax albipennis. 38th annual meeting of the Animal Behavior Society, Corvallis, Washington, 2001.

Pratt, S.C., Mallon, E.B., Sumpter, D.J.T., and Franks, N.R. Information flow and collective decision-making during nest site selection by the ant Leptothorax albipennis. 2001 conference of the Society for the Study of Evolution, Knoxville, Tennessee, 2001.

Pratt, S.C. Collective decision-making in a small society: how the ant Leptothorax albipennis chooses a nest site. Ants2000: 2nd International Workshop on Ant Algorithms, Brussels, Belgium, 2000.

Pratt, S.C. Decentralized control of drone comb construction in honey bee colonies. 13th Congress of the International Union for the Study of Social Insects, Adelaide, Australia, 1998.

Pratt, S.C. Optimal timing of comb construction by honey bee colonies. Winter meeting of the International Union for the Study of Social InsectsBritish Section, London, United Kingdom, 1998.

Pratt, S.C. Decentralized control of drone comb construction in honey bee colonies. International meeting on the mathematical biology of pattern and process, University of Bath, Bath, United Kingdom, 1998.

Pratt, S.C. Control of the timing of comb construction by honey bee colonies. 1997 meeting of the International Union for the Study of Social InsectsNorth American Section, Nederland, Colorado, 1997.

Pratt, S.C. Regulation of the timing of comb construction by honey bee colonies. 12th Congress of the International Union for the Study of Social Insects, Paris, France, 1994.

 

Campus and departmental talks

Collective cognition by insect societies. Symposium in honor of Robert E. Page, December 13, 2016.

Decentralized mechanisms of collective behavior in social insects. ASU Math Club, Tempe, Arizona, March 23, 2016.

The psychology of ants and ant colonies. BEYOND Center Workshop on Information, Complexity and Life, Tempe, Arizona, February 25, 2014.

Collective transport by ants as a model for robot teams. Conference on Social Biomimicry: Insect Societies and Human Design, Tempe Arizona, February 19, 2010.

Collective decision-making by ant colonies: Linking group and individual behavior. Applied Psychology Seminar, Cognitive Engineering Research Institute, Mesa, Arizona September 18, 2007.

Insect societies as collective decision-makers. Neuroscience of Social Decision Making Seminar, Princeton University, November 8, 2005.

Collective decision-making by ant colonies. Neuroscience Retreat, Princeton University, June 2, 2005.

Speed-accuracy tradeoffs in collective decision-making by ants. Maclean House postdoctoral seminar series, Princeton University, March 31, 2005.

Honors/Awards

Founders Day Faculty Research Award, ASU Alumni Association, 2013.

Long-term Fellowship, Human Frontier Science Program, 1998-2000.

Editorships

Academic Editor, PLoS One, 2011-present.

Member, Editorial Board, Swarm Intelligence, 2017-present.

Professional Associations

Animal Behavior Society. International Union for the Study of Social Insects. International Society for Behavioral Ecology. National Organization of Gay and Lesbian Scientists and Technical Professionals. Entomological Society of America.

Service

Interim Associate Director, Graduate Programs, School of Life Sciences, ASU, 2017.

Director, Animal Behavior Graduate Program, ASU, 2015-present.

Track Organizer, Biological Complexity Track, Conference on Complex Systems, 2015.

Faculty Advisor, ASU chapter of Out in Science, Technology, Engineering, and Mathematics (oSTEM), 2014-present.

Faculty Advisor, Students of the Social Insect Research Group, ASU, 2016-present.

Chair, Awards Committee, International Union for the Study of Social Insects, North American Section, 2016-present.

Faculty Honors Advisor, Barrett Honors College, Arizona State University, 2013-present.

Member, Core Faculty of Center for Social Dynamics and Complexity, 2008-present.

Member, Undergraduate Programs Committee, School of Life Sciences, 2014-present.

Graduate Faculties / Mentoring History

Ph.D. students: Takao Sasaki, ASU, 2008-2013 Zachary Shaffer, ASU, 2007-2014 Peter Marting, ASU, 2011-present Yohan Cho, ASU, 2011-present Jon Jackson, ASU, 2013-present Andrew Burchill, ASU, 2015-present Undergraduate honors theses: Grant Doering, ASU, 2015-2017 Blake Colling, ASU, 2012-2014 Lucas Talken, ASU, 2013-2014 Christal Johnson, ASU, 2012-2013 Samantha Jones, ASU, 2012 Forrest Noelck, ASU, 2011-2012 Gage Schaper, ASU, 2010-2014 Michael Bayuk, ASU, 2009-2010 Trisha Morshed, ASU, 2008-2010 Anne Sonnenschein, ASU, 2007-2010 Sean Bowens, ASU, 2006-2010 Michael McDowell, ASU, 2007-2009 Eric Huynh, ASU, 2008-2009 Susan Edwards, Princeton, 2004-2006 Jessica Lee, Princeton, 2004-2005 Yuvon Mobley, Princeton, 2003-2004 Megan van Beusekom, Princeton, 2003-2004

Work History

2012- Associate Professor, School of Life Sciences, Arizona State University. 2006-2012 Assistant Professor, School of Life Sciences, Arizona State University. 2001-2006 Lecturer and Postdoctoral Scientist, Princeton University, Pew Program in Biocomplexity. 1998-2000 Postdoctoral Fellow, University of Bath. 1997-1998 Postdoctoral Scientist, Harvard University. 1997-1998 Postdoctoral Scientist, Whitehead Institute for Biomedical Research/MIT Center for Genome Research.