Larval dispersal in Chrysomya megacephala, Chrysomya putoria and Cochliomyia macellaria (Dipt., Calliphoridae): Ecological implications of aggregation behaviour

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1996-01-01

Autores

Godoy, W. A C [UNESP]
Von Zuben, C. J. [UNESP]
Dos Reis, S. F.

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In this study we investigate aggregated patterns as a consequence of post-feeding larval dispersal in three blowfly species, based on the frequency distribution of sampling units in the substrate having 0, 1, 2,..., n pupae. Statistical analysis revealed that aggregated patterns of distribution emerge as a consequence of larval dispersal, and Cochliomyia macellaria has higher levels of aggregation when compared to Chrysomya megacephala and C. putoria. Aggregation during dispersal is associated with a spatial pattern where most larvae in the species tend to pupariate near the food source. The possible consequences for the population ecology of these species are discussed.

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Chrysomya megacephala, Chrysomya putoria, Cochliomyia macellaria

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Journal of Applied Entomology, v. 120, n. 7, p. 423-426, 1996.