Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1044457
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dc.contributor.authorBUCH, A. C.pt_BR
dc.contributor.authorNIEMEYER, J. C.pt_BR
dc.contributor.authorCORREIA, M. E. F.pt_BR
dc.contributor.authorSILVA FILHO, E. V.pt_BR
dc.date.accessioned2016-05-04T11:11:11Zpt_BR
dc.date.available2016-05-04T11:11:11Zpt_BR
dc.date.created2016-05-04pt_BR
dc.date.issued2016pt_BR
dc.identifier.citationEcotoxicology and Environment Safety, v. 127, p. 22-29, 2016pt_BR
dc.identifier.issn0147-6513pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1044457pt_BR
dc.descriptionMercury (Hg) is a highly toxic nonessential trace metal. Despite its natural occurrence in the Earth's Crust, its concentrations have been steadily increasing in the environment due to anthropogenic sources. Recent studies have showed great concern about soil fauna, once the potential adverse effects of mercury concentrations in the environment of these invertebrates are still poorly understood, especially when linked to forest soils and tropical biota. Different collembolan species can show distinct toxicity effects to the contaminants, impairing its developing lifelong and affecting its diversity and abundance in the environment. Laboratory studies were performed to evaluate the ecotoxicity of Hg(II) to collembolan species collected in Brazil, Proisotoma minuta (autochthonous) and Folsomia candida (allochthonous), as a tool to predict effects in ecological risk assessment of tropical regions. Behavioral, acute and chronic tests were carried under temperatures of 20 °C and 24 °C using two test soils, natural and artificial, spiked with increasing mercury concentrations. F. candida was more sensitive to mercury contamination than P. minuta, presenting the most restrictive values of EC50 and LC50. Reproduction was a considerably more sensitive endpoint than avoidance and mortality. The 28-day lower EC50 values were found in chronic tests for F. candida in natural soil to 24 °C (3.32 mg Hg kg?1), while for P. minuta was in tropical artificial soil to 20 °C (4.43 mg Hg kg?1). There were similarity for each collembolan species to respond at the Hg(II) effects when exposed at 20 °C and 24 °C. F. candida can be suitable as a bioindicator species to mercury ecotoxicity tests in tropical forest soils.pt_BR
dc.language.isoporpt_BR
dc.rightsopenAccesspt_BR
dc.subjectTrace metalpt_BR
dc.subjectAutochthonous speciespt_BR
dc.subjectEcotoxicological testspt_BR
dc.subjectInvertebrates soil faunapt_BR
dc.subjectSpringtailpt_BR
dc.titleEcotoxicity of mercury to Folsomia candida and Proisotoma minuta (Collembola: isotomidae) in tropical soil: baseline for ecological risk assessmentpt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2017-03-23T11:11:11Zpt_BR
riaa.ainfo.id1044457pt_BR
riaa.ainfo.lastupdate2017-03-23pt_BR
dc.identifier.doi10.1016/j.ecoenv.2016.01.009pt_BR
dc.contributor.institutionANDRESSA CRISTHY BUCH, UFF; JÚLIA CARINA NIEMEYER, UFSC; MARIA ELIZABETH FERNANDES CORREIA, CNPAB; EMMANOEL VIEIRA SILVA FILHO, UFF.pt_BR
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