an average does not describe

an average does not describe

Data are arranged by plots in rank order of stand age (among plots with FIA stand age ≥80) to illustrate distribution of older tree ages within each plot. The height of the bottom blue line indicates the FIA stand age of plots, with a 95% confidence interval for individual tree ages based on the estimate of within-plot standard deviation of the proportional difference among individual tree ages and stand age of 0.14 (+/- 28% of FIA stand age; [46]). Each vertical line indicates a unique FIA plot and each point along that line indicates the age of a tree older than the reported stand age.
Ages of all individual cored trees that were older than their FIA stand age value.

References:

http://www.sussex.ac.uk/skillshub/?id=479&site=normal

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