The variance of the index (R) of aggregation of Clark and Evans

Miguel Petrere Jr

doi:10.1007/BF00379489

The variance of the index (R) of aggregation of Clark and Evans

Oecologia. 1985 Dec;68(1):158-159. doi: 10.1007/BF00379489.

Author

Miguel Petrere Jr¹

Affiliation

¹ UNESP-Depto de Ecologia, 13.500, Rio Claro, SP, Brazil.

PMID: 28310926
DOI: 10.1007/BF00379489

Abstract

The exact formula for the variance of the Index (R) of aggregation of Clark and Evans is derived. Due to the fact that R is a dimensionless number, its variance is independent of population density, being only a function of the sample size and so can be manipulated.