An unbiased stereological estimator for surface area density is derived for gradient surface processes which form a particular class of non-stationary spatial surface processes. Vertical planar ...

Abstract: The species‐area relationship (SAR), describing the increase in species richness with increasing area, and the latitudinal diversity gradient (LDG), describing the decrease in species ...

Seasonal change in leaf-area index at three sites along a South American latitudinal gradient ...