The genetic legacy of a global marine invader
Abstract
The massive geographic expansion of terrestrial plant crops, livestock, and marine aquacultured species during the 19th and 20th centuries provided local economic benefits, stabilized food demands, and altered local ecosystems. The invasion history of these translocations remains uncertain for most species, limiting our understanding of their future adaptive potential and historical roles as vectors for coinvaded species. We provide a framework for filling this gap in invasion biology using the widely transplanted Pacific oyster as a case study. A two-dimensional summary of population-level variation in single nucleotide polymorphisms in native Japan reflected the geographical map of Japan and allowed identification of the source regions for the worldwide expansion. Pacific oysters proliferate in nonnative areas with environmental temperatures similar to those areas where native lineages evolved. Using Approximate Bayesian Computation, we ranked the likelihood of historical oyster or shipping vectors to explain current-day distribution of genotypes in 14 coinvaded algal and animal species. Oyster transplants were a more likely vector than shipping for six species, shipping activity was more likely for five species, and a vector was ambiguous for three species. Applying this approach to other translocated species should reveal similar legacy effects, especially for economically important foundation species that also served as vectors for nonnative species.
Article Details
Journal Info
Proceedings of the National Academy of Sciences
National Academy of Sciences
Authors (25)
Erik E. Sotka
Department of Biology, College of Charleston
Ryan B. Carnegie
Virginia Institute of Marine Science, College of William and Mary
James T. Carlton
Williams College-Mystic Seaport Coastal and Ocean Studies Program
Lucia Couceiro
Facultade de Ciencias, Departamento de Bioloxía, Universidade da Coruña
Jeffrey A. Crooks
Tijuana River National Estuarine Research Reserve
Hikaru Endo
Faculty of Fisheries, Kagoshima University
Hilary Hayford
Puget Sound Restoration Fund
Masakazu Hori
Japan Fisheries Research and Education Agency
Mitsunobu Kamiya
Department of Ocean Sciences, Tokyo University of Marine Science and Technology
Gen Kanaya
National Institute for Environmental Studies
Judith Kochmann
Faculty of Biology, Institute of Organismic and Molecular Evolution, Johannes Gutenberg University
Kun-Seop Lee
Department of Biological Sciences, Pusan National University
Lauren Lees
Department of Ecology and Evolutionary Biology, University of California
Hannah Miller
Department of Biology, College of Charleston
Masahiro Nakaoka
Akkeshi Marine Station, Field Science Center for Northern Biosphere, Hokkaido University
Eric Pante
CNRS, IRD, Ifremer, UMR 6539, Laboratory of Environmental Marine Sciences (LEMAR), Université de Bretagne
Jennifer L. Ruesink
Department of Biology, University of Washington
Evangelina Schwindt
Instituto de Biología de Organismos Marinos, Consejo Nacional de Investigaciones Científicas y Técnicas (IBIOMAR-CONICET)
Åsa Strand
Department of Environmental Intelligence, IVL Swedish Environmental Research Institute
Richard B. Taylor
Leigh Marine Laboratory and Institute of Marine Science, University of Auckland
Ryuta Terada
Faculty of Fisheries, Kagoshima University
Martin Thiel
Takefumi Yorisue
Nature and Environment Division, Institute of Natural and Environmental Sciences, University of Hyogo
Danielle Zacherl
Department of Biological Science, California State University
Allan E. Strand
Department of Biology, College of Charleston