Título:	Enchytraeid abundance in Araucaria Mixed Forest determined by cold and hot wet extraction.
Autor:	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.
Afiliación:	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.
Año:	2015
Referencia:	Brazilian Journal of Biology, São Carlos, v. 75, n. 4, supl. 1, p. 169-175, 2015.
Descripción:	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.
Thesagro:	Araucária
NAL Thesaurus:	Oligochaeta Enchytraeidae
Palabras clave:	Métodos de extração Subtropical
DOI:	http://dx.doi.org/10.1590/1519-6984.08414
Tipo de Material:	Artigo de periódico
Acceso:	openAccess
Aparece en las colecciones:	Artigo em periódico indexado (CPAC)