Town level compositional change (Sørensen's distance) between the pre-colonial and the modern forest taxa.

<p>Higher values indicate greater compositional change over time. Inset: Spatial autocorrelation in compositional change (Sørensen's distance) over time as shown in a Moran's I spatial correlogram with 20 km distance classes. Solid points indicate that spatial autocorrelation in that distance class is significantly different than zero (P<0.01).