Dr. Ian Davidson

Ian Davidson



Ph: 503-725-2923

PhD: University College Cork, Ireland • Marine Biology
BSc: University College Cork, Ireland • Applied Ecology




Ian is a Research Associate at the Aquatic Bioinvasion Research & Policy Institute. He has been working at PSU since 2004 and has a BSc in Applied Ecology and PhD in Marine Ecology from University College Cork, Ireland. His research focuses on marine and estuarine introduced species and benthic ecology. He works with colleagues at the Marine Invasions Lab of the Smithsonian Environmental Research Center on maritime vectors of invasive species, especially vessel biofouling. This work has included research projects undertaken from Panama to Alaska and from Micronesia to the East Coast of North America. He also works on ballast water, marine biodiversity, biogeography, eradication and control of invaders, and management & policy related to introductions.


Darling J, Herborg L-M, Davidson I. (in review) Multiple introductions obscure patterns of
regional population expansion by an invasive coastal marine invertebrate. Molecular

Simkanin C, Davidson IC, Dower JF, Jameson G, Therriault TW. (in press) Distribution patterns of
marine non-indigenous species in artificial and natural habitats. Marine Ecology.

Davidson I, Simkanin C (2012) The biology of Ballast Water 25 years later. Biological Invasions
14: 9-13.

Davidson IC, Zabin C, Chang A, Brown C, Sytsma M, Ruiz G. (2010) Recreational boats as
potential vectors of marine organisms at an invasion hotspot. Aquatic Biology 11: 179-

Davidson IC, Brown CW, Sytsma MD, Ruiz GM. (2009) The role of containerships as transfer
mechanisms of marine biofouling species. Biofouling 25: 645-655.

Simkanin C, Davidson I, Faulkner M, Sytsma M, Ruiz G. (2009) Intra-coastal ballast water flux
and the potential for secondary spread of non-native species on the U.S. West Coast.
Marine Pollution Bulletin 58: 366-374.

Davidson I, Simkanin C (2008) Skeptical of assisted colonization. Science 322: 1048-1049.

Davidson IC, McCann LD, Sytsma MD, Ruiz GM (2008). Interrupting a multi-species bioinvasion
vector: The efficacy of in-water cleaning for removing biofouling on obsolete vessels.
Marine Pollution Bulletin 56: 1538-1544.

Davidson IC, McCann LD, Fofonoff PW, Sytsma MD, Ruiz GM (2008). The potential for hull-
mediated species transfers by obsolete ships on their final voyages. Diversity &
Distributions 14: 518-529.