Computer analysis of polarized spacing patterns with special reference to the larvae of the black fly, Simulium vittatum

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Abstract
A computer analysis of spacing patterns which makes fewer assumptions than either nearest-neighbour distance or plot frequency analysis techniques is described. This analysis determines if the spacing pattern is polarized in any direction, and can compensate for the possible effect of the size and shape of the organism on the spacing pattern. The output of the analysis is a two-dimensional frequency distribution which represents the likelihood of finding a neighbour near an average individual. This output can be represented by a two-dimensional map. The method requires a sample size greater than 50, and in its present form cannot assign statistical significance to the resulting probability distribution.

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