Dinâmica populacional de insetos coletados em cultura de cacau na região de Altamira, Pará: II. Análise faunística

This paper presents the faunal indices of the orders Coleoptera, Hemiptera and Homoptera associated with cacao trees in the region of Altamira, Pará, Brazil, from September 1978 to August 1981. The following faunal parameters were investigated: frequency, constancy, dominance, diversity, similarity, and percentage of similarity. The total of 20,033 individuals collected included 92 species of which 73 were dominant. The distribution was noted as 10 species as very abundant, 12 as common, 10 as disperse and 60 as rare. Coextensively, 13 species were constant, 20 accessory and 59 accidental. The index of diversity was 9.2. The higher similarity was observed between the second (1979/1980) and third (1980/1981) years of sampling, with an index of 6,5 which is confirmed by the percentage of similarity between these years.