About the Authors

Daniel Rubinoff

rubinoff@hawaii.edu

Affiliation Department of Plant and Environmental Protection Sciences, University of Hawaii at Manoa, Honolulu, Hawaii, United States of America

Johannes J. Le Roux

Current address: DST-NRF Centre of Excellence for Invasion Biology, Faculty of Science, Stellenbosch University, Matieland, South Africa

Affiliation Department of Plant and Environmental Protection Sciences, University of Hawaii at Manoa, Honolulu, Hawaii, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DR. Performed the experiments: DR JJL. Analyzed the data: DR JJL. Contributed reagents/materials/analysis tools: DR. Wrote the paper: DR JJL. Conceived the study: DR. Co-wrote the manuscript: JLR. Conducted DNA sequencing, the latter doing more than half: DR JLR. Acquired the samples: DR. Conducted most of the statistical analyses: JLR.