论文检索

关于几何级数物种频率模型的札记AI 解读

We consider a certain randomized geometric series of relative abundances and the limit, of the Dirichlet distribution used in the derivation of the logarithmic series distribution. When an individual is chosen at random from either of the populations, the abundance of the species it represents is shown to have the same distribution. The maximum likelihood estimate for the geometric series model with fixed abundances is evaluated, and a bias correction is proposed.

物种频数模型研究AI 解读

An extension of the negative binomial model as a species frequency distribution is given by allowing the shape parameter k to take values between -1 and 0. Different estimation methods are assessed for this extended negative binomial model and the logarithmic series model. Tables for standard errors are given.

物种频数模型研究AI 解读

An extension of the negative binomial model as a species frequency distribution is given by allowing the shape parameter k to take values between -1 and 0. Different estimation methods are assessed for this extended negative binomial model and the logarithmic series model. Tables for standard errors are given.