Analysis of variance comparing within patch variability of Siphonaria concinna and S. serrata over 12 months in the Eastern Cape region.

Month was a fixed factor, Species (S. concinna or S. serrata) was fixed and orthogonal, Size (small or large) was fixed and orthogonal, and n = 4 replicate patches. Data were Ln(x+1) transformed to satisfy homogeneity of variances, Cochran’s Test C = 0.12. Post hoc Student-Newman-Keuls (SNK) tests were done for significant sources of variation to examine the direction of differences relevant to hypotheses of interest (highlighted in bold).本实验中，月份作为固定因子；物种（S. concinna或S. serrata）为固定且正交的实验因素；规格（小型或大型）亦为固定且正交的实验因素，共设置4个重复样地。对数据进行Ln(x+1)变换以满足方差齐性要求，科克伦检验（Cochran’s Test）的统计量C=0.12。针对存在显著变异的来源开展事后Student-Newman-Keuls（SNK）检验，以考察与目标研究假设相关的差异方向，该方向已以粗体标注。