Professional Talks (invited unless noted as contributed)
Colloquium, Department of Mathematics, Grand Valley State University, "Climate Change and Tipping Points for Seabird Colonies in the Pacific Northwest", Allendale, MI, March 17, 2023.
Theoretical and Statistical Seminar, "Periodic matrix models for seasonal dynamics of seabirds", Maynooth University, Virtual, May 11, 2022.
Plenary, EXSEED Summer Conference, "How We Know: A tour through the power and limits of human reasoning", Loma Linda University, Loma Linda, CA, Virtual, June 22, 2021.
Society of Mathematical Biology, annual meeting, minisymposium on Ecological Models at the Interface of Empirical and Theoretical Research, "Climate Change and Tipping Points for Seabird Colonies in the North American Pacific Northwest", UC Riverside, CA, Virtual, June 16, 2021.
Annual Meeting for the Ecological Society of America, special session on Transients in Ecology, "The effect of rising sea surface temperature on seabird behavior and population dynamics in the Pacific Northwest: transients and tipping points", Louisville, KY, August 14, 2019.
World Conference on Natural Resource Modelling, "A predator-prey model for bald eagles and colonial seabirds in the Pacific Northwest of North America", Montreal, Quebec, Canada, May 23, 2019.
Colloquium, Department of Applied and Computational Mathematics and Statistics, University of Notre Dame, "Climate Change and Tipping Points for Seabird Colonies in the Pacific Northwest", Notre Dame, IN, April 15, 2019.
Michigan Academy of Science, Arts & Letters Conference, Mathematics Section, "A predator-prey model for bald eagles and seabirds", Alma College, Alma, MI, March 1, 2019 (contributed).
National Institute for Mathematical and Biological Synthesis, "Climate Change and Tipping Points for Seabird Colonies in the Pacific Northwest", Knoxville, TN, September 4, 2018.
Joint Mathematics Meetings, AMS Special Session on Discrete Dynamical Systems and Applications, "Periodic matrix models for seasonal dynamics of stage structured populations II: Application to a seabird colony", San Diego, CA, January 11, 2018.
Plenary speaker, Conference on Biology and Medicine through Mathematics (BAMM!), "Rising Sea Surface Temperatures and Tipping Points for Seabird Colonies", Richmond, VA, May 18, 2017.
Michigan Academy of Science, Arts & Letters Conference, Zoology Section, "El Niño, 'The Blob', and egg cannibalism in Glaucous-winged Gulls", Western Michigan University, Kalamazoo, MI, March 10, 2017, with Jim Hayward (contributed).
Joint Mathematics Meetings, AMS Special Session on Real Discrete Dynamical Systems with Applications, "Modeling of reproductive synchrony in colonial seabirds", Atlanta, GA, January 6, 2017.
Joint Mathematics Meetings, MAA Invited Paper Session on Role of Modeling & Understanding Environmental Risks, "Climate change and tipping points in seabird colonies," Atlanta, GA, January 4, 2017.
Plenary speaker, with J. M. Cushing and J. L. Hayward, World Conference on Natural Resource Modeling, Resource Modeling Association, "The Effects of Climate Change on Marine Birds: Rising Sea Surface Temperature, Cannibalism, and Reproductive Synchrony, Part I", Flagstaff, AZ, June 14, 2016.
North American Ornithological Conference, "Climate change, cannibalism, reproductive synchrony, and tipping points in seabirds", Washington DC, August 17, 2016, with J. L. Hayward. (contributed)
Michigan Academy of Science, Arts & Letters Conference, Mathematics Section, "Effects of Warming Seas: Cannibalism and Reproductive Synchrony in a Seabird Colony", Saginaw Valley State University, University Center, MI, March 4, 2016. (contributed)
5th International Conference on Mathematical Modeling and Analysis of Populations in Biological Systems, "Effects of Warming Seas: Cannibalism and Reproductive Synchrony in a Seabird Colony", University of Western Ontario, London, Ontario, Canada, October 4, 2015.
Distinguished Research Lecture, "Effects of Climate Change on Animal Behavior", La Sierra University, Riverside, CA, May 27, 2015.
Phi Kappa Phi lecture, with J. L. Hayward, "Effects of Climate Change on Animal Behavior", Andrews University, Berrien Springs, MI, April 1, 2015.
American Mathematical Society, Spring Southeastern Sectional Meeting, special session on New Developments in Population Dynamics and Epidemiology, "Environmental change and life history strategies: cannibalism and reproductive synchrony III", Huntsville, Alabama, March 27, 2015.
Plenary speaker, with J. L. Hayward, Michigan Academy of Science, Arts & Letters Conference, "Effects of Climate Change on Animal Behavior", Andrews University, Berrien Springs, MI, March 13, 2015.
American Ornithologists' Union, Joint Meeting, "Tradeoff between daily and yearly reproductive synchrony in colonial seabirds", Estes Park, CO, September 25, 2014. (contributed)
Andrews Research Conference, Early Career Researchers in STEM, "Hot and Bothered: Climate Change, Cannibalism, and Ovulation Synchrony", Andrews University, Berrien Springs, MI, May 8, 2014.
Michigan Academy of Science, Arts & Letters Conference, Mathematics Section, "Reproductive synchrony in populations can ameliorate the effects of adult-on-juvenile cannibalism," Oakland University, Rochester, MI, February 28, 2014.
Joint Mathematics Meetings, AMS Special Session on Mathematics in Natural Resource Modeling, "Reproductive synchrony in populations can ameliorate the effects of adult-on-juvenile cannibalism," Baltimore, MD, January 17, 2014.
American Mathematical Society, Fall Southeastern Sectional meeting, special session on Mathematical Models in Biology and Physiology, "Bifurcation of synchronous ovulation cycles in colonial birds", Louisville, KY, October 6, 2013.
Colloquium, Rosario Beach Marine Laboratory, Anacortes, WA, July 24, 2013.
Public lecture, "Cape George University" lecture series, Cape George, Port Townsend, WA, May 22, 2013.
Conference to Honor Tom Thompson and Ken Wiggens, "Coadaptive dynamics of cannibalism and ovulation synchrony: a discrete-time mathematical model," Walla Walla University, Walla Walla, WA, May 17, 2013.
Colloquium, Departments of Mathematics and Biology, "Chaotic dynamics and lattice effects documented in experimental insect populations," Albion College, Albion, MI, May 2, 2013.
Michigan Academy of Science, Arts & Letters Conference, Mathematics Section, "Co-adaptation of Cannibalism and Ovulation Synchrony," Hope College, Holland, MI, March 22, 2013.
Colloquium, Departments of Mathematics and Biology, "Chaotic dynamics and lattice effects in experimental insect populations," Hope College, Holland, MI, March 8, 2013.
Pacific Seabird Group, Annual Meeting, "Temporal and environmental effects on the behavior of flightless cormorants," Portland, OR, February 22, 2013 (contributed).
Michigan Academy of Science, Arts & Letters Conference, Environmental Science and Ecology Section, "Dynamics of Harbor Seal Haulout", Alma College, Alma, MI, March 2, 2012 (contributed).
Joint Mathematics Meetings, AMS Special Session on Mathematics in Natural Resource Modeling, "A Mathematical Model of Harbor Seal Haulout", Boston, MA, January 5, 2012.
Plenary speaker, Third Annual Celebration of Research, "The Mathematics of Animal Behavior", Andrews University, Berrien Springs, MI, November 10, 2011.
Colloquium, Departments of Mathematics and Biology, "Chaotic Dynamics and Lattice Effects in Experimental Insect Populations," University of Dayton, Dayton, OH, September 22, 2011.
7th International Congress on Industrial and Applied Mathematics--ICIAM 2011, Minisymposium on "Modeling Aspects of Endocrine Regulation in the Female Reproductive System," Vancouver, BC, July 18, 2011.
Joint Mathematics Meetings, SIAM Minisymposium on "Applications of Difference and Differential Equations in Ecology and Epidemiology," New Orleans, LA, January 6, 2011.
Colloquium, Departments of Mathematics and Biology, Joint with James L. Hayward, "Mathematical Ecology: An Interdiciplinary Dialogue," Sponsored by Southern Maine Chapter of Sigma Xi and the Mellon Foundation, Bates College, Lewiston, ME, September 24, 2010.
Joint Mathematics Meetings, AMS Special Session on "Biomathematics: Modeling in Biology, Ecology, and Epidemiology,, San Francisco, CA, January 15, 2010.
The Second International Conference on Mathematical Modeling and Analysis of Populations in Biological Systems, University of Alabama, Huntsville, AL, October 9, 2009.
Colloquim, Department of Mathematics, "Bifurcations and Chaos in Laboratory Populations of Insects," Colorado College, Colorado Springs, CO, September 18, 2009.
Colloquim, Department of Biology, "Socially-induced ovulation synchrony in a seabird colony", Colorado College, Colorado Springs, CO, September 17, 2009.
Plenary speaker, 2009 Workshop for Young Researchers in Mathematical Biology, Mathematical Biosciences Institute, Ohio State University, Columbus, OH, August 26, 2009.
Colloquium, Department of Mathematics, Georgia Institute of Technology, Atlanta, GA, April 8, 2009.
American Association for the Advancement of Science, 175th Annual Meeting, Special Session on "Mathematical Biology, the New Frontier: Educating the Next Generation", Chicago, IL, February 13, 2009.
Joint Mathematics Meetings, SIAM Minisymposium on "Mathematical Modeling of Natural Resources," Washington DC, January 5, 2009.
Colloquium, Department of Mathematics, Furman University, Greenville, SC, November 13, 2008.
Lecture, Cultural Life Program, Furman University, Greenville, SC, November 13, 2008.
AMS Sectional Meeting, Special Session on "Mathematical Biology: Modeling, Analysis, and Simulations", Huntsville, AL, October 24, 2008.
John F. Stout Symposium, Biology Department, Andrews University, Berrien Springs, MI, September 26, 2008.
Lecture, Marine Science Center, Port Townsend, WA, July 17, 2008.
Colloquium, Department of Biological Sciences, Walla Walla University, Walla Walla, WA, May 6, 2008.
AMS National Meeting, Special Session on "Recent Advances in Mathematical Biology, Ecology, and Epidemiology," San Diego, CA, January 6, 2008.
Plenary speaker, Mathematical Modeling and Analysis of Populations in Biological Systems, University of Arizona, Tucson, AZ, October 5, 2007.
Colloquium, Department of Mathematics, University of Michigan, Ann Arbor, MI, March 9, 2007.
Colloquium, Department of Mathematics, Georgia Institute of Technology, Atlanta, GA, November 26, 2006.
Ecological Society of America Annual Meeting, "Organized Oral Session" on "The Modern Paradigm in Population Ecology: Stochastic, Statistical, and Inferential," Memphis, TN, August 8, 2006.
Colloquium, Department of Mathematics, Calvin College, March 30, 2006.
Colloquium, Department of Ecology and Evolution, University of Chicago, February 27, 2006.
AMS National Meeting, Special Session on "Nonautonomous Discrete Dynamics", San Antonio, TX, January 13, 2006.
AMS Sectional Meeting, Special Session on "Extinction, Periodicity, and Chaos in Population and Epidemic Models," Lubbock, TX, April 8, 2005.
Colloquium, Department of Mathematics, Central Michigan University, March 24, 2005.
Colloquium, Department of Mathematics, Hope College, February 3, 2005.
AMS National Meeting, Special Session on "Recent Advances in Mathematical Ecology," Atlanta, GA, January 7, 2005.
Colloquium, Department of Mathematics, Miami University, December 3, 2004.
Colloquium, Department of Mathematics, Pennsylvania State University, October 6, 2004.
Colloquium, Walla Walla College Marine Station at Rosario Beach, Anacortes, Washington, July 2004.
Colloquium, Department of Mathematics, Gustavus Adolphus College, April 27, 2004.
AMS National Meeting, Special Session on "Mathematics in Natural Resource Modeling," Phoenix, AZ, January 7, 2004.
Colloquium, Department of Mathematics, Southern Adventist University, December 1, 2003.
AMS Sectional Meeting, Special Session on "Structured Population and Epidemic Models: Periodicity, Chaos, and Extinction," Boulder, CO, October 3, 2003.
(declined) Ecological Society of America Annual Meeting, Special Session on "Death of Determinism? Noise in a Non-Linear World", Savannah, GA, August 7, 2003.
Plenary speaker, MAA Sectional Meeting, Saginaw, MI, May 2, 2003.
AMS National Meeting, Special Session on "Discrete Dynamics and Difference Equations," Baltimore, MD, January 17, 2003.
Colloquium, Department of Mathematics, Grand Valley State University, Allendale, MI, September 24, 2002.
Colloquium, Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, September 23, 2002.
Ecological Society of America Annual Meeting, Workshop: Twenty-five Years of Ecological Chaos: Do Mathematical Models Really Work After All? Tucson, AZ, August 4-9, 2002.
Society for Mathematical Biology, Symposium on Structured Population and Community Modeling and Ecotoxicology in Honor of Tom Hallam's 65th Birthday, Knoxville, TN, July 13-16, 2002.
Colloquium, Department of Mathematics, Oakland University, Rochester, MI, April 25, 2002.
Colloquium, Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, April 5, 2002.
Colloquium, Department of Mathematics, Indiana University, South Bend, March 29, 2002.
AMS Sectional Meeting, Special Session on "Biological Applications of Dynamical Systems," Ann Arbor, MI, March 1-3, 2002.
AMS National Meeting, Special Session on "Chaos, Stability, and Asymptotics in Difference Equations," San Diego, January, 2002.
Colloquium, Department of Mathematics, University of Notre Dame, November 27, 2001.
Colloquium, Department of Mathematics, Princeton University, April 30, 2001.
Colloquium, Center for Applied Math, Cornell University, April 27, 2001.
Colloquium, Department of Mathematics, Andrews University, April 6, 2001.
(declined) Joint Meeting, Society for Mathematical Biology and Japanese Society of Mathematical Biology, symposium on matrix population models (theory, applications, new ideas), Hilo, Hawaii, July 16-19, 2001.
National Science Foundation Quantitative Environmental Biology Workshop, SCRIPPS, La Jolla, CA, Fall 2000
International Meeting in Mathematics in Biology and Annual Society for Mathematical Biology Meeting, Symposium on Theoretical Ecology, Salt Lake City, Utah, August 3-5, 2000.
(declined) SIAM annual meeting, minisymposium on effects of forcing in population dynamics, Rio Grande, Puerto Rico, July 10-14, 2000.
(declined) Third World Congress of Nonlinear Analysists (WCNA-2000), University of Catania, Catania, Sicily, Italy, July 19-26, 2000.
(declined) Invited and funded to attend Courant Institute Nonlinear Analysis 2000 for "rising scientists"
AMS Southeastern Section Meeting, Lafayette, LA, April 14-16, 2000.
Joint Colloquium, Departments of Mathematics and Biology, College of William and Mary, Williamsburg, VA, November, 1999.
Colloquium, Department of Biology, Wake Forest University, Winston-Salem, NC, September, 1999.
Colloquium, Department of Mathematics, College of William and Mary, Williamsburg, VA , January, 1999.
AMS National Meeting, Special Session on "Discrete Models and Difference Equations," San Antonio, TX, January, 1999.
Colloquium, Department of Mathematics, Texas Tech University, Lubbock, TX, December, 1998.
Colloquium, Department of Mathematics and Department of Biology, Southern Adventist University, Collegedale, TN, November, 1998.
Colloquium, Department of Mathematics, Arizona State University, Tempe, AZ, March, 1998.
AMS Conference, Special Session on "Difference and Differential Equations", Albuquerque, NM, November, 1997.
NSF-CBMS Conference "Dynamical Systems in Structured Population Dynamics," NCSU, Raleigh, NC, June, 1997.
International Conference on Mathematical Models in Medical and Health Sciences, Special Session on "Optimization and Control Problems in the Biosciences," Vanderbilt University, Nashville, TN, May, 1997.
Assembly of the College of Arts and Sciences, La Sierra University, Riverside, CA, January, 1997.
Applied Mathematics PDE seminar, University of Arizona, Tucson, AZ, October 1996.
Applied Mathematics Seminar, Northern Arizona University, Flagstaff, AZ, October 1996.
Mathematical Theory of Networks and Systems - 96, Special Session on "Mathematical Modeling in Population Biology," Washington University, St. Louis, MS, June 1996.
The Second International Conference on The Numerical Solution of Volterra and Delay Equations, Arizona State University, Tempe, AZ, May 1996.
Southeastern American Mathematical Society Meeting, Special Session on "Asymptotic Behavior of Differences Equations with Applications," Baton Rouge, LA, April 1996.
Applied Mathematics Modeling Seminar, Department of Mathematics, University of Arizona, Tucson, AZ, March 1996.
Mathematical Biology Seminar, Department of Mathematics, Arizona State University, Tempe, AZ, October 1995.
Southwest Regional Institute of Mathematical Sciences (SWRIMS) Conference on Modeling in Population Dynamics, Utah State University, Logan, UT, August 1995.
University of Tennessee Workshop for High-School Mathematics Teachers, University of Tennessee at Chattanooga, Chattanooga, TN, June 1995.
Applied Mathematics Modeling Seminar, Department of Mathematics, University of Arizona, Tucson, AZ, March 1995.
Arizona/Los Alamos Days, Department of Mathematics, University of Arizona, Tucson, AZ, January 1995.
International Centre for Theoretical Physics, 4th Autumn Course on Mathematical Ecology, International Centre for Theoretical Physics, Trieste, Italy, October-November 1994.
American Institute for Biological Sciences and the Society for Ecological Modelling, Special Session on "Structured Populations and Communities," University of Tennessee, Knoxville, TN, August 1994.
AMS/MAA/SIAM Joint Meetings, Philadelphia, January 1993.
Society for Computer Simulation, Washington D. C. 1993.
