Overall theme of the research program

My overall objective is to run a research group working in mathematical and theoretical biology, with a focus on ecology, evolution, and behavior and the broad goal of combining first-rate basic science with important applied questions, which Donald Stokes called Pasteur's Quadrant. I use mathematical methods to solve problems in biological and ecological science (rather than problems in biological and ecological science to motivate mathematical studies). The tools I use are models (differential equations, stochastic dynamic programming and Bayesian statistical methods), experiments (either here in Santa Cruz or in collaboration with colleagues elsewhere) and field observations. I apply these ideas to a variety of systems, currently including southern ocean krill, steelhead trout, Pacific rockfish, and planaria. Although I worked for many years on insect parasitoids and tephritid fruit flies, I am not doing much with them just now.

Plenary and invited lectures in the last decade

"Uncertainty in Ecological Analysis: A Retrospective and Prospective", Workshop on Uncertainty in Ecological Analysis, Mathematical Biosciences Institute, Ohio State University, April 2006

"Understanding the Decline of The Western Alaskan Steller Sea Lion: Assessing the Evidence Concerning Multiple Hypothesis", Frohlich Fellow Lecture, CSIRO Hobart, October 2006 The talk

"Combining proximate and ultimate approaches to understand life-history variation in salmonids, with application to fisheries, conservation, and aquaculture". Invited Talk, Sixth William R. and Lenore Mote International Symposium In Fisheries Ecology, November 2006

"Life History Plasticity and Stock Assessments: Beyond the von Bertalanffy". Invited Talk, American Institute of Fishery Research Biologists 50th Anniversary Symposium on The Future of Fishery Science in North America, February 2007 The talk

"Coming Out of the Ivory Tower: How to make sure that our modelling efforts remain applied and practical?" Guest Speaker, Populations Under Pressure. A graduate research symposium in applied population biology. Imperial College Centre for Population Biology at Silwood Park, March 2007

"Ecology, Conservation and Public Policy: A Vision for the 21st Century", Astor Lecture, University of Oxford, April 2007 The talk

"Why We Age, What Causes Us to Age, and What Can Be Done About It", Synergy Lecture, University of California Santa Cruz, May 2007 The talk

"Natural Resource Modelng in the 21st Century", Plenary Lecture, 25th Meeting of the Resource Modeling Association, Cape Cod, June 2007 The talk

"Compensatory Growth, Metabolic Syndrome, and Hormesis: Three Sides of the Same Life History Coin", Thematic Topic on Evolutionary Ecology of Senescence, Annual Meeting of the British Ecology Society, Sept 2007

"Understanding the decline of the western Alaskan Steller sea lion: An ecological thriller" The talk and "The Keystone Species and the Ultraviolet Catastrophe: Southern Ocean Krill, Krill Predators and Krill Fishery Management in a Changing Climate".The talk W.V. Kaeser Lectures, University of Wisconsin, March 2008

"Separating Environmental Science and Environmentalism in the Study of Marine Reserves" Pacific Islands Fishery Science Center, June 2008

"Mosquito Behavior and Malarial Interventions" Center for Infectious Disease Dynamics Workshop on Control and Management of Infectious Diseases, Pennsylvania State University, June 2008

"Ecology, Conservation and Public Policy: A Vision for the 21st Century", Toyota-ANU Public Lecture, Crawford School of the Environment, Australian National University, March 2009. You can see the lecture on Australian Slow TV or directly here Part 1 Part 2 The talk

"Doing Policy Relevant Science, Understanding Policy Relevant Science: The Essential Tension", Keynote Address, 2009 Fenner Conference on the Environment, Australian Academy of Sciences, March 2009 The talk

"Management Strategy Evaluation for Seal Conservation", Invited Talk, Science Session, Special Committee on Seals, July 2009

"Tools for large scale (ecosystem-based) and long-term (evolutionary) environmental risk assessment in the marine environment", Okeanos Workshop on Assessing the Cumulative Impacts of Underwater Noise with Other Anthropogenic Stressors on Marine Mammals , August 2009

Lamberson Ecology Lecturer Series, Humboldt State University, February 2010: "Combining Life History Theory, Experiments, and Field Studies in Setting River Flows for California Steelhead" (Video link ) The talk and "Doing Policy Relevant Science; Understanding Policy Relevant Science: The Essential Tension" (Video link )

Testimony at the International Court of Justice in the case "Whaling in the Antarctic: Australia v. Japan. New Zealand Intervening", June 2013. Video link.

Ectotherms in Changing Environments: Working in Pastuer's Quadrant. Stonybrook University, November 2013 (Video link )

NOAA Fisheries QUEST Seminar 'A Perspective on Steepness and Its Applications', February 2014 (Video link )

Science, Whaling, and Scientific Whaling in the International Court of Justice, Bevan Lecture, University of Washington, January 2015 (Video link )

A few of other talks, given as seminars at research institutions:

The Evolutionary Ecology of Offspring Number and Size

State Dependent Life History Theory and Stem Cell Biology

Ectotherms in Changing Environments. Working in Pasteur's Quadrant

Of Flour Beetles and Wikipedians

Southern Ocean Krill, Krill Predators, and Krill Fishery Management in a Changing Climate