Data/hora: 10/06/2024 13:30:40

Biblioteca(s): | Embrapa Cerrados.
Data corrente: | 26/01/2016
Data da última atualização: | 26/01/2016
Autoria: | NIVA, C. C.; CEZAR, R. M.; FONSECA, P. M.; ZAGATTO, M. R. G.; OLIVEIRA, E. M.; BUSH, E. F.; CLASEN, L. A.; BROWN, G. G.
Afiliação: | CINTIA CARLA NIVA, CPAC; R. M. CEZAR, Universidade Federal do Paraná; P. M. FONSECA, Universidade Federal do Paraná; M. R. G. ZAGATTO, Universidade Federal do Paraná; OLIVEIRA, E. M., Universidade Federal do Paraná; E. F. BUSH, Universidade Federal do Paraná; L. A. CLASEN, Universidade Federal do Paraná; GEORGE GARDNER BROWN, CNPF.
Título: | Enchytraeid abundance in Araucaria Mixed Forest determined by cold and hot wet extraction.
Ano de publicação: | 2015
Fonte/Imprenta: | Brazilian Journal of Biology, São Carlos, v. 75, n. 4, supl. 1, p. 169-175, 2015.
DOI: | http://dx.doi.org/10.1590/1519-6984.08414
Idioma: | Inglês
Conteúdo: | Enchytraeids are small oligochaetes found worldwide in soils with sufficient moisture and organic matter, but scarcely studied in the Southern hemisphere. This is the third study on enchytraeid abundance in Brazil using wet extraction and the first carried out in Araucaria Mixed Forest (subtropical region). The sampling and extraction were based on the standard method ISO 23611-3/2007 using an adapted split soil corer and wet extraction with and without heat to assess the abundance of enchytraeids in a forest fragment at Embrapa Forestry in Colombo, Paraná State. The samplings were performed in 3 occasions between September 2011 and April 2012. The average numbers estimated by each method varied from appr. 2.000-12.000 (cold) and 5.000-12.000 ind./ m2 (hot), respectively, with a maximum of 44.000 ind./ m2 in one of the samples, the highest value reported so far in Brazil. The hot extraction was more advantageous, given the speed and preservation of the specimens in vivo, allowing taxonomic identification. Advantages and disadvantages of wet extractions compared to handsorting and formol methods are also discussed. Guaranidrilus, Hemienchytraeus, Enchytraeus, Fridericia and Achaeta were the genera identified in the samples.
Palavras-Chave: | Métodos de extração; Subtropical.
Thesagro: | Araucária.
Thesaurus Nal: | Enchytraeidae; Oligochaeta.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/137830/1/Cintia-niva.pdf
Registro original: | Embrapa Cerrados (CPAC)
Exemplares: | CPAC - (35118-1) - UPC - AP - PP - S2030 -  - S2030 - DIS