3.2 Population genetic structure
The MDS plots showed evidence of four distinct genetic clusters in the scrubtit (Figure 2a). Within mainland Tasmania, individuals sampled in the northeast of the state and on the Tasman Peninsula were distinct from the rest of the mainland population. King Island scrubtits formed their own cluster distinct from the Tasmanian scrubtit, with additional substructuring into three subpopulations when analysed independently (Figure 2b).