Enchytraeus crypticus em ensaios ecotoxicológicos com solo artificial tropical.

ECOTOX. Poster 544

Microanelídeos como indicadores de qualidade do solo em parques urbanos em Curitiba - PR.

Resumo. FERTBIO 2014

Efeito de uma formulação comercial de glifosato sobre a reprodução de uma espécie nativa de enquitreídeo (Enchytraeidae, Oligochaeta).

ECOTOX. Poster 537

RefConcile – automated online reconciliation of bibliographic references

Comprehensive bibliographies often rely on community contributions. In such a setting, de-duplication is mandatory for the bibliography to be useful. Ideally, it works online, i.e., during the addition of new references, so the bibliography remains duplicate-free at all times. While de-duplication is well researched, generic approaches do not achieve the result quality required for automated reconciliation. To overcome this problem, we propose a new duplicate detection and reconciliation technique called RefConcile. Aimed specifically at bibliographic references, it uses dedicated blocking and matching techniques tailored to this type of data. Our evaluation based on a large real-world collection of bibliographic references shows that RefConcile scales well, and that it detects and reconciles duplicates highly accurately

Enchytraeids (Oligochaeta, Enchytraeidae) as soil quality indicators in integrated systems in Paraná State.

Resumo

Toxicity of AMPA to the earthworm Eisenia andrei Bouché, 1972 in tropical artificial soil.

Aminomethylphosphonic acid (AMPA) - one of glyphosate's main metabolites - has been classified as persistent in soils, raising concern regarding the widespread use of glyphosate in agriculture and forestry. Glyphosate may have negative or neutral effects on soil biota, but no information is available on the toxicity of AMPA to soil invertebrates. Therefore our aim was to study the effect of AMPA on mortality and reproduction of the earthworm species Eisenia andrei using standard soil ecotoxicologica I methods (ISO). Field-relevant concentrations of AMPA had no significant effects on mortality in acute or chronic assays. Except at the highest concentration tested, a significant biomass loss was observed compared to controls in the chronic assay. The number of juveniles and cocoons increased with higher concentrations of AMPA applied, but their mean weights decreased. This mass loss indicates higher sensitivity of juveniles than adults to AMPA. Our results suggest that earthworms coming from parents grown in contaminated soils may have reduced growth, limiting their beneficial roles in key soil ecosystem functions. Nevertheless, further research is needed to better understand the mechanisms underlying the sublethal effects observed here

Enquitreídeos como indicadores de qualidade do solo em sistemas integrados de produção nos Campos Gerais, Paraná.

Resumo. FERTBIO 2014