Resumo

TAPIA-CORAL, Sandra Celia et al. Characterization of the soil macrofauna in forest fragments in the municipality of Leticia, Colombian amazon. rev. colombiana cienc. anim. Recia [online]. 2019, vol.11, n.1, pp.4-16. ISSN 2027-4297.  https://doi.org/10.24188/recia.v11.n1.2019.690.

The characterization and the abundance of the soil macrofauna and its relation with the morphology of the soil, were evaluated in areas of forest fragments of secondary forests in the Center for Biodiversity and Tourism of the Amazon, of the National Service of Learning - SENA, in Leticia, Colombian Amazon. Te soil macrofauna (invertebrates greater than or equal to 2 mm in diameter) was evaluated in two seasoning periods (May and October) with different rainfall records. A total abundance of 5995 individuals of the soil macrofauna was found, distributed in 14 taxonomic orders. Te conserved forest fragment (FFC) was the area that registered the highest floristic diversity, and presented the highest density of the soil macrofauna in both sampling periods. Te groups of insects Isoptera and Formicidae were predominant, especially in the FFC. Te soil macrofauna communities did not detect significant correlations with the soil morphology variables in the forest fragments. However, this correlation was significant between the two sampling periods, indicating that the seasonality of the rainfall may affect the density of the soil macrofauna depending on the sampling period.

Palavras-chave : Secondary forest; soil engineers; soil macroinvertebrates; soil morphology.

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