Earthworms, ants and other arthropods as soil health indicators in traditional and no-fire agro-ecosystems from Eastern Brazilian Amazonia

Guillaume Xavier Rousseau, Paulo Rogério Dos Santos Silva, Cláudio José Reis de Carvalho

Resumen


Deforestation of the Amazonian rainforest and conversion to agriculture with the use of fire creates a mosaic of occupied lands and secondary forests. Considering the fundamental role of soil macrofauna and the lack of information about its resilience to deforestation, this study characterized the earthworms, ants and other soil arthropod communities in secondary forests of 40 and 20 years of age and in cropping system and pastures prepared with slash-and-burn or chop-and-mulch in the Brazilian Eastern Amazonia. Soil macrofauna was sampled according to the TSBF (Tropical Soil Biological and Fertility) methodology. Four sub-indices and one “macrofauna soil health index” were calculated using five principal component analyses. The macrofauna index identified better soil health in chop-andmulch crops, followed by the 40 yr-old forest and the chop-and-mulch pasture. These results confirmed the fundamental role of old secondary forests for soil biodiversity conservation and the potential of the chop-and-mulch technique to mitigate the effects of land use changes.

Palabras clave


Soil macrofauna; biodiversity; principal component analysis; soil quality; soil management

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DOI: https://doi.org/10.21829/azm.2010.262882

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Copyright (c) 2010 ACTA ZOOLÓGICA MEXICANA (N.S.)

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Este obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial-CompartirIgual 4.0 Internacional.

Acta Zoológica Mexicana (nueva serie), 2020, Vol. 36, es una publicación electrónica continua de acceso abierto, editada por el Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec 351, Col. El Haya, Xalapa, Ver. C.P. 91073, Tel. (228) 842-1800, extensión 4112 http://azm.ojs.inecol.mx/index.php/azm. Editor responsable: Sergio Ibáñez-Bernal, sergio.ibanez@inecol.mx. Reservas de Derechos al Uso Exclusivo No. 04-2019-021314325500-203, versión on-line ISSN 2448-8445, [antes también impresa ISSN 0065-1737], con registros otorgados por el Instituto Nacional del Derecho de Autor. Responsable de la última actualización de este volumen, Sergio Ibáñez-Bernal, Carretera antigua a Coatepec, 351, Col. El Haya, Xalapa, Ver., C.P. 91073. Fecha de la última modificación: 09 de enero de 2020.

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