Deep into the mud: ecological and socio-economic impacts of the dam breach in Mariana, Brazil

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dc.contributor.authorFernandes, Geraldo Wilson
dc.contributor.authorGoulart, Fernando F.
dc.contributor.authorRanieri, Bernardo D.
dc.contributor.authorCoelho, Marcel S. [UNESP]
dc.contributor.authorDales, Kirsten
dc.contributor.authorBoesche, Nina
dc.contributor.authorBustamante, Mercedes
dc.contributor.authorCarvalho, Felipe A.
dc.contributor.authorCarvalho, Daniel C.
dc.contributor.authorDirzo, Rodolfo
dc.contributor.authorFernandes, Stephannie
dc.contributor.authorGaletti, Pedro M.
dc.contributor.authorMillan, Virginia E. Garcia
dc.contributor.authorMielke, Christian
dc.contributor.authorRamirez, Jorge L.
dc.contributor.authorNeves, Ana
dc.contributor.authorRogass, Christian
dc.contributor.authorRibeiro, Sérvio P.
dc.contributor.authorScariot, Aldicir
dc.contributor.authorSoares-Filho, Britaldo
dc.contributor.institutionUniversidade Federal de Minas Gerais (UFMG)
dc.contributor.institutionStanford University
dc.contributor.institutionUniversity of British Columbia
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionGeodesy and Remote Sensing Department
dc.contributor.institutionUniversidade de Brasília (UnB)
dc.contributor.institutionPontifícia Universidade Católica de Minas Gerais (PUC-Minas)
dc.contributor.institutionFaculdade de Direito Milton Campos
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Federal de Ouro Preto
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.date.accessioned2018-12-11T16:45:01Z
dc.date.available2018-12-11T16:45:01Z
dc.date.issued2016-07-01
dc.description.abstractWe review the ecological and socio-economic impacts of the catastrophic dam failure in Mariana, Brazil. Tailing management practices by Samarco mining company ultimately caused a dam breach that abruptly discharged between 55 and 62 million m3 of tailings into the Doce River watershed. On November 5th, 2015, a tsunami of slurry engulfed the small district of Bento Rodrigues, loading the Doce River and its estuary with toxic tailings along a 663.2 km trajectory, extending impacts to the Atlantic coast. Acute ecological impacts will adversely affect livelihoods of more than 1 million people in 41 riparian municipalities by reducing local access to fisheries resources, clean water, crop production sites, hydroelectric power generation and raw materials. The threats to riverine human communities are particularly critical for the disadvantaged populations from remote areas that rely on subsistence agriculture and fisheries, and are uniquely vulnerable to long-term heavy metal exposure. At the landscape scale, we predict multiple negative impacts, ranging from alterations of the genetic diversity of fish populations to long-term vegetation loss and poor regeneration in contaminated areas. Consequently, compromised soil stability and runoff control will increase the risk of further geomorphologic disturbance, including landslides, bank failure and mass movements. We propose spatially explicit long-term monitoring frameworks and priority mitigation measures to cope with acute and chronic risks. We posit that, from a national perspective, disastrous impacts like that of Doce River may become more frequent, given the recent regulatory changes that undermine both institutional governance structures and enforcement of environmental regulation.en
dc.description.affiliationEvolutionary Ecology & Biodiversity Department of General Biology Universidade Federal de Minas Gerais (UFMG)
dc.description.affiliationDepartment of Biology Stanford University
dc.description.affiliationMaster in Modeling and Analysis of Environmental Systems Center for Remote Sensing Department of Cartography Universidade Federal de Minas Gerais (UFMG)
dc.description.affiliationNorman B. Keevil Institute of Mining Engineering University of British Columbia
dc.description.affiliationLaboratory of Phenology Department of Botany Instituto de Biociências (IB) Universidade Estadual Paulista (UNESP)
dc.description.affiliationCanadian International Resources & Development Institute University of British Columbia
dc.description.affiliationHelmholtz Centre Potsdam GFZ German Research Centre for Geosciences Geodesy and Remote Sensing Department
dc.description.affiliationDepartment of Ecology Universidade de Brasília
dc.description.affiliationDepartment of Zoology Pontifícia Universidade Católica de Minas Gerais (PUC-Minas)
dc.description.affiliationFaculdade de Direito Milton Campos
dc.description.affiliationDepartment of Genetics and Evolution Universidade Federal de São Carlos
dc.description.affiliationDepartment of Biodiversity Evolution and Environment Institute of Exact and Biological Sciences Universidade Federal de Ouro Preto
dc.description.affiliationEmbrapa Recursos Genéticos e Biotecnologia Parque Estação Biológica (PqEB)
dc.description.affiliationUnespLaboratory of Phenology Department of Botany Instituto de Biociências (IB) Universidade Estadual Paulista (UNESP)
dc.format.extent35-45
dc.identifierhttp://dx.doi.org/10.1016/j.ncon.2016.10.003
dc.identifier.citationNatureza e Conservacao, v. 14, n. 2, p. 35-45, 2016.
dc.identifier.doi10.1016/j.ncon.2016.10.003
dc.identifier.issn1679-0073
dc.identifier.scopus2-s2.0-85006142664
dc.identifier.urihttp://hdl.handle.net/11449/169231
dc.language.isoeng
dc.relation.ispartofNatureza e Conservacao
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectEcosystem services
dc.subjectEnvironmental contamination
dc.subjectEnvironmental legislation
dc.subjectHeavy metals
dc.subjectMining
dc.subjectRestoration
dc.subjectWater resources
dc.titleDeep into the mud: ecological and socio-economic impacts of the dam breach in Mariana, Brazilen
dc.typeArtigo

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