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Samples of 800 sweeps each were taken in 25 different Costa Rican and Caribean Island sites in order to analyze community—level structure of foliage—inhabiting insects. Physical environmental data and important biotic features of the sites are recorded. Sampling methods, taxonomic problems in sorting samples, and summary statistics are described. Species abundances and size distributions of the insects are appended. Interpretation of the results of the sweep samples is left for a companion paper (Janzen 1973).
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Daniel H. Jazen (1973) studied this question.
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