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Individual-based rarefaction-extrapolation curves of tree species richness patterns in the three forest management systems in a moist semi-deciduous forest in Ghana. The solid lines of the curves are the rarefaction (interpolation) curves from the reference sample, whereas the dashed lines are the extrapolation curves. The symbols at the end of each rarefaction curve (see also legend) represents the observed number of individuals for the particular forest management system.
