Geometry in ecological patterns of landscape and vegetation is not truly fractal, and varies across a range of scales, whereas fractal geometry provides tools for predicting and describing ecological ...

A procedure is suggested to eliminate dependency on the species-area curve, based on the view that the most important fact of plant distribution is the distribution of quantity of material as ...

Learn how representative samples and random samples differ and why combining them minimizes sampling bias for accurate data.

The first video in Pew Research Center’s Methods 101 series helps explain random sampling – a concept that lies at the heart of all probability-based survey research – and why it’s important. Fresh ...