Supplementary material 1 from: Thomsen M, Wernberg T, Olden J, Byers J, Bruno J, Silliman B, Schiel D (2014) Forty years of experiments on aquatic invasive species: are study biases limiting our understanding of impacts? NeoBiota 22: 1-22. https://doi.org/10.3897/neobiota.22.6224