About the speaker:

Dr. William J. Sydeman is a veteran marine ecologist with expertise in eastern boundary current - upwelling, and other temperate-subarctic ecosystems of the North Pacific.  Bill conducts interdisciplinary research focusing on marine climate impacts on plankton (krill), forage fish, and predators (seabirds).  His expertise includes changes in ocean temperature and winds, population biology of krill and forage fish, seabird ecology and conservation, ecosystem-based fisheries management, and ecological indicators.  He has published about 200 papers in the primary literature, and serves on various advisory panels including as current co-chair of California’s Ocean Protection Council – Science Advisory Team.  Bill lives and works in Petaluma in northern California.  Bill’s presentation will be based on a recent paper published in Science in May 2021 entitled “Hemispheric Asymmetry in Ocean Change and the Productivity of Ecosystem Sentinels” in which he and a large group of international colleagues conducted a meta-analysis of changes in seabird breeding success across the globe and compared responses across seabird trophic levels and foraging behavior.