chapter  2
12 Pages

The J Distribution and Its Variations

In Chapter 1, the J distribution appeared only in the form of its probability density function (pdf). In this chapter, it appears as a distribution populated by a number R of species. The distribution comes in a continuous version and in a corresponding discrete version that translates the continuous form into a prediction of the number of species to appear at each possible abundance. Carrying this process one step further, an equivalent formulation called the canonical sequence specifies average positions for each species as a function of rank order.