Data/hora: 09/06/2024 07:24:23

Biblioteca(s): | Embrapa Amazônia Ocidental.
Data corrente: | 28/11/2007
Data da última atualização: | 03/06/2022
Autoria: | FÖRSTER, B.; GARCIA, M.; FRANCIMARI, O.; RÖMBKE, J.
Afiliação: | Bernhard Förster, ECT Oekotoxikologie GmbH; MARCOS VINICIUS BASTOS GARCIA, CPAA; Oliveira Francimari, Bolsista CNPq/CPAA; Jörg Römbke, ECT Oekotoxikologie GmbH.
Título: | Effects of carbendazim and lambda-cyhalothrin on soil invertebrates and leaf litter decomposition in semi-field and field tests under tropical conditions (Amazônia, Brazil).
Ano de publicação: | 2006
Fonte/Imprenta: | In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY SOIL ANIMALS AND ECOSYSTEM SERVICES, 14., 2004, Mont Saint Aignan. Soil animals and ecosystem services: proceedings. European Journal of Soil Biology, Amsterdam, v. 42, s171-s179, nov. 2006. Suplemento.
Idioma: | Inglês
Conteúdo: | Effects of the fungicide carbendazim and of the insecticide lambda-cyhalothrin on soil invertebrates and litter decomposition under tropical conditions were assessed in ecotoxicological semi-field studies using intact soil-core terrestrial model ecosystems (TMEs) and in a field test applying the litter-bag method. In the TME study, performed indoors under controlled conditions, earthworms, isopods and diplopods were added to intact soil cores and mortality of soil invertebrates and mass loss of leaf litter were assessed. The field study was performed on an abandoned rubber plantation near Manaus (Amazonia, Brazil). The measurement endpoints were abundance of the soil fauna and mass loss of leaf litter. In the TMEs carbendazim caused a decrease in the abundance of the introduced earthworm Pontoscolex corethrurus and, partly, of the milliped Trigoniulus corallinus. In the field carbendazim decreased the abundance of the native earthworm Andiorrhinus amazonius. Lambda-cyhalothrin was toxic to isopods and millipedes in the TMEs, whereas no effect on arthropods was detected in the field. Organic matter breakdown measured as mass loss of leaf litter in TMEs over time revealed that the two tested agrochemicals can have an impact on decomposition at field relevant concentrations. In the field the results were less obvious, due to spatial heterogeneity through which possible effects of the tested agrochemicals could have been masked.
Palavras-Chave: | Amazonas; Brasil; Invertebrados.
Thesagro: | Fauna Edáfica; Fungicida; Minhoca; Solo.
Categoria do assunto: | --
Registro original: | Embrapa Amazônia Ocidental (CPAA)
Exemplares: | CPAA - (18328-1) - UPC - AP - DD - 631.46 - I61s -  - DIS