Jonathan Geller is a Professor of Invertebrate Zoology and Molecular Ecology at the Moss Landing Marine Laboratories (MLML) of the California State University, located in Monterey Bay, California. He received BA, MS, and PhD degrees at the University of California at Davis and UC Berkeley, and held postdoctoral positions at the University of Oregon and Stanford University, and faculty positions at the University of Oregon and University of North Carolina at Wilmington. Longstanding research focuses on marine biological invasions and employs population genetics to detail sources, pathways, and consequences of invasions. Other published research reflects broad interests in invertebrate evolution and ecology, and include species descriptions, phylogenetic analysis, phylogeography, population extinction, genetics of exploited populations, larval recruitment, and symbiosis. The description of biodiversity in discrete habitats using molecular inventories is a current emphasis.