Table 2. Blue whale grouping criteria for population structure testing at the temporal scale.
| Grouping Criteria | Groups | Size | Sex ratio | HWE | RST, FST |
| Years | 13 | 16–61 | 2009 group: p = 0.0014 | RST = 0–0.01, p>0.05a | |
| mode = 39, SD = 12 | X2 = 4.5, p = 0.9, df = 12 | Remaining Groups:p = 0.3–0.008 | FST = 0–0.03, p>0.05a | ||
| adjusted B p = 0.004,13 test | |||||
| Month-year | 23 | 10–36 | February:X2 = 43.1, p = 0.03, df = 9 | March 2009:p = 0.0018 | RST = 0.0001–0.03, p = 0.01–0.9 |
| mode = 11, SD = 8 | March: X2 = 15, p = 0.07, df = 10 | Remaining Groups:p = 0.3–0.008 | FST = 0.0001–0.001, p = 0.03–0.9 | ||
| April: X2 = 0.6, p = 0.6, df = 1 | adjusted B p = 0.0022,23 test | adjusted B-Yp = 0.008 | |||
| Sighting frequency | 3 | 39–69 | X2 = 0.68, p = 0.8, df = 2 | p = 0.02–0.2, | RST = 0–0.001, p>0.05a |
| mode = 39, SD = 17 | adjusted B p = 0.01 | FST = 0–0.0004, p>0.05a |
Grouping criteria: see Methods. Groups = number of groups of the temporal structure analyses. Size = range, mode and standard deviations of groups. Sex ratio = sex ratio of the group compared to overall sex ratio (1.41∶1) in the population. HWE = Hardy-Weinberg equilibrium. RST and FST = range values of pairwise RST and FST comparisons among groups. Adjusted B and B-Y p-values refer to the adjusted p-values after sequential Bonferroni and Benjaminy-Yekutiely correction respectively.
a
denotes all p-values were >0.05. Significant results are in bold.