Figure 3.

Proportional membership (Q) of historic M. antipodes specimens to the South Island (dark grey) and sub-Antarctic (light grey) populations as estimated using the assignment test in Structure. Each horizontal bar represents a single specimen identified by its museum accession number and specimens are ordered by reported geographical sampling location and museum collection. Specimens above the dashed line were purportedly collected on the South Island, those under the dashed line on the sub-Antarctic Auckland and Campbell Islands. The vertical line borders the eight specimens with suspect geographical origin. Museum abbreviations can be found in table S1 in the electronic supplementary material.