Summary
For the detection and description of pattern in data from quadrats arranged in a grid or belt, an alternative is proposed to the usual hierarchical analysis of variance. Quadrats at specified spacings of interest are paired at random, and the variance between quadrats so paired is then related to the inter-quadrat distance Examples are given, and the advantages of this method compared with that hitherto employed are discussed.
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(from 1-12-1974: CSIRO, Division of Land Resources Management, Canberra City, A.C.T. 2601, Australia).
The earlier part of this work was performed while I was on the staff of the CSIRO Division of Mathematical Statistics, Perth, Western Australia, with the assistance of Mrs. Shirley Daffen and Mrs. Pam Giroud. It was completed at Logan with support from N.S.F. Grants GB-12058 and GB-19843, and from the US/IBP Desert Biome Program under N.S.F. Grant GB-32139.
I am indebted to my colleague Dr. Neil E. West for the aerial survey data used, and to him and Dr. James A. MacMahon for comments on the paper in draft.