benefits from ecological study methods to taxonomy of enchytraeids in southern mata atlântica benefícios de métodos de estudos ecológicos para a taxonomia de enquitreídeos no sul da mata atlântica

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ID: 159519
2009
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Ranked #122 of 193 articles by views in proc - the fourth ieee workshop on software technol for future embedded and ubiquitous syst, seus 2006 andthe second int workshop on collaborative comput, integr, and assur, wccia 2006

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Abstract
The objective of this work was to determine how taxonomy benefited from the ecological quantitative and site-based sampling methods in enchytraeids studies. Enchytraeids (small relatives of earthworms) were sampled in different phases of rain forest regeneration in the southern Mata Atlântica in Paraná, Brazil. The research combined ecological and taxonomic work, because enchytraeids are poorly studied and difficult to identify, and many new species were expected. The provision of large numbers of specimens enabled the test of species diagnoses by investigating the ranges of character variations in a larger series of specimens. Simplified species diagnoses adapted to the local conditions that allowed the identification of all specimens, juveniles included, were developed. Key characters and character states are presented for the three genera: Achaeta, Hemienchytraeus and Guaranidrilus. Among several new species, a rare species, possibly a remnant of the autochthonous forest fauna, was found and described.
O objetivo deste trabalho foi determinar como a taxonomia beneficia-se de métodos quantitativos e de amostragem ecológicos nos estudos dos enquitreídeos. Enquitreídeos (pequenos parentes das minhocas) foram coletados em diferentes fases de regeneração da Mata Atlântica no Estado do Paraná, Brasil. Foram combinadas as pesquisas ecológica e taxonômica, pois os enquitreídeos são pouco estudados e difíceis de identificar, e muitas espécies novas eram esperadas. O grande número de espécimes coletados permitiu testar diagnoses de espécies por meio da investigação das amplitudes de variações de caracteres em uma série mais ampla de espécimes. Diagnoses de espécies simplificadas, adaptadas às condições locais do ambiente, foram desenvolvidas, o que permitiu a identificação de todos os exemplares, incluindo juvenis. Caracteres-chave e estados de caracteres foram formulados para três gêneros: Achaeta, Hemienchytraeus e Guaranidrilus. Entre várias espécies novas, uma espécie rara, possível remanescente da fauna autóctone da floresta, foi encontrada e descrita.
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Authors ;Rüdiger Maria Schmelz;Rut Maria Collado de la Peña;Jörg Römbke
Journal proc - the fourth ieee workshop on software technol for future embedded and ubiquitous syst, seus 2006 andthe second int workshop on collaborative comput, integr, and assur, wccia 2006
Year 2009
DOI
10.1590/S0100-204X2009000800009
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2009000800009
Keywords
south america species identificationagriculture (general)

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