Figure 2.

Scatter diagrams showing the relationship between the observed pollen diversity and the relative abundance (percentage) of pollen from Andean forest and grassparamo after the assigned Andean forest taxa are removed from the pollen diversity measurement: (a) number of observed non-Andean forest taxa versus pollen abundance from Andean forest; (b) number of observed non-Andean forest taxa versus pollen abundance from grassparamo; (c) Shannon–Wiener index of non-Andean forest taxa versus pollen abundance from Andean forest; and (d) Shannon–Wiener index of non-Andean forest taxa versus pollen abundance from grassparamo. The observed pollen taxon number is calibrated using a rarefaction method based on 150 pollen grains. The linear regression equations and R² values are also shown.