Summary of results from BOTTLENECK for six <i>Naja atra</i> populations for the Wilcoxon's test for both the two-phase model (TPM) and stepwise mutation model (SMM) along with results from the mode-shift test.

Under the mode-shift test, an L-shaped distribution of alleles is expected in the absence of a bottleneck whereas a distribution with a shifted mode is expected in a population that has gone through a bottleneck. See Table 1 for sample site abbreviations.