Exposição de aves migratórias limícolas a metais pesados na costa maranhense, Brasil
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFMA |
Texto Completo: | https://tedebc.ufma.br/jspui/handle/tede/tede/2246 |
Resumo: | Whereas heavy metal contamination may be associated with population decline of migratory Nearctic shorebirds, this study found that the assimilation of these contaminants by Calidris pusilla and Arenaria interpres in two wintering areas on the north coast of Brazil, in the State of Maranhão, can contribute as a factor for the population decline of the species. Metals cadmium, lead, copper, chromium, mercury, selenium and zinc were analyzed in contour feathers of 15 individuals of each species by atomic absorption spectrophotometer. There was a significant difference only for mercury between the two species. The average concentration of metals were below the threshold considered toxic to birds. The fact that the contamination did not reach the threshold considered harmful to both migratory species in this study is an indication that in this region, the heavy metal contamination is not considered a potential factor in the decline of populations of migratory birds that overwinter in north coast of Brazil, specially in Maranhão. However, migratory birds use different areas on the north coast of Brazil along different migration routes, which makes it necessary to expand the area in future studies. |
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SANTOS, Ricardo Rodrigues dos499.215.253-87http://lattes.cnpq.br/3450756019036388MEDEIROS, Manuel Alfredo Araujo255.454.693-20http://lattes.cnpq.br/1059798585946068RODRIGUES, Roberta Costahttp://lattes.cnpq.br/3159405873795347FURTADO, Jomar Livramento Barroshttp://lattes.cnpq.br/1825174805506031013.324.563-24http://lattes.cnpq.br/1810429007668291SOUSA, Ana Paula Silva de2018-05-21T18:18:00Z2016-04-29SOUSA, Ana Paula Silva de. Exposição de aves migratórias limícolas a metais pesados na costa maranhense, Brasil. 2016. 41 f. Dissertação (Mestrado em Biodiversidade e Conservação) - Universidade Federal do Maranhão, São Luís, 2016.https://tedebc.ufma.br/jspui/handle/tede/tede/2246Whereas heavy metal contamination may be associated with population decline of migratory Nearctic shorebirds, this study found that the assimilation of these contaminants by Calidris pusilla and Arenaria interpres in two wintering areas on the north coast of Brazil, in the State of Maranhão, can contribute as a factor for the population decline of the species. Metals cadmium, lead, copper, chromium, mercury, selenium and zinc were analyzed in contour feathers of 15 individuals of each species by atomic absorption spectrophotometer. There was a significant difference only for mercury between the two species. The average concentration of metals were below the threshold considered toxic to birds. The fact that the contamination did not reach the threshold considered harmful to both migratory species in this study is an indication that in this region, the heavy metal contamination is not considered a potential factor in the decline of populations of migratory birds that overwinter in north coast of Brazil, specially in Maranhão. However, migratory birds use different areas on the north coast of Brazil along different migration routes, which makes it necessary to expand the area in future studies.Considerando que a contaminação por metais pesados pode estar associada ao declínio populacional de aves limícolas neárticas migratórias, este estudo verificou se a assimilação destes contaminantes por Calidris pusilla e Arenaria interpres, em duas áreas de invernada na costa norte do Brasil, no Estado do Maranhão, pode contribuir para o declínio populacional das espécies. Os metais cádmio, chumbo, cobre, cromo, mercúrio, selênio e zinco foram analisados em penas de contorno de 15 indivíduos de cada espécie através do espectrofotômetro de absorção atômica. Houve diferença significativa apenas para o mercúrio entre as duas espécies. As médias da concentração dos metais estavam abaixo do limiar considerado tóxico para as aves. O fato da contaminação não ter atingindo o limiar considerado nocivo às duas espécies migratórias neste estudo é um indicativo de que, nesta região, a contaminação por metais pesados ainda não é considerado um fator em potencial para o declínio das populações de aves migratórias que invernam na costa norte do Brasil, em especial no Maranhão. Entretanto, as aves migratórias utilizam diversas áreas na costa norte do Brasil ao longo de diferentes rotas de migração, o que torna necessário ampliar a área de investigação em futuras pesquisas.Submitted by Rosivalda Pereira (mrs.pereira@ufma.br) on 2018-05-21T18:18:00Z No. of bitstreams: 1 AnaPaulaSousa.pdf: 770060 bytes, checksum: 1093412767df1a1bafd5dbe7ce95e0ad (MD5)Made available in DSpace on 2018-05-21T18:18:00Z (GMT). No. of bitstreams: 1 AnaPaulaSousa.pdf: 770060 bytes, checksum: 1093412767df1a1bafd5dbe7ce95e0ad (MD5) Previous issue date: 2016-04-29FAPEMAapplication/pdfporUniversidade Federal do MaranhãoPROGRAMA DE PÓS-GRADUAÇÃO EM BIODIVERSIDADE CONSERVAÇÃO/CCBSUFMABrasilDEPARTAMENTO DE BIOLOGIA/CCBSContaminaçãoAves limícolasDeclínio populacionalAmérica do SulContaminationShorebirdsPopulation declineSouth AmericaControle Populacional de AnimaisExposição de aves migratórias limícolas a metais pesados na costa maranhense, BrasilExposure of migratory waders to heavy metals on the coast of Maranhão, Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFMAinstname:Universidade Federal do Maranhão (UFMA)instacron:UFMAORIGINALAnaPaulaSousa.pdfAnaPaulaSousa.pdfapplication/pdf770060http://tedebc.ufma.br:8080/bitstream/tede/2246/2/AnaPaulaSousa.pdf1093412767df1a1bafd5dbe7ce95e0adMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82255http://tedebc.ufma.br:8080/bitstream/tede/2246/1/license.txt97eeade1fce43278e63fe063657f8083MD51tede/22462018-05-21 15:18:00.464oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttps://tedebc.ufma.br/jspui/PUBhttp://tedebc.ufma.br:8080/oai/requestrepositorio@ufma.br||repositorio@ufma.bropendoar:21312018-05-21T18:18Biblioteca Digital de Teses e Dissertações da UFMA - Universidade Federal do Maranhão (UFMA)false |
dc.title.por.fl_str_mv |
Exposição de aves migratórias limícolas a metais pesados na costa maranhense, Brasil |
dc.title.alternative.eng.fl_str_mv |
Exposure of migratory waders to heavy metals on the coast of Maranhão, Brazil |
title |
Exposição de aves migratórias limícolas a metais pesados na costa maranhense, Brasil |
spellingShingle |
Exposição de aves migratórias limícolas a metais pesados na costa maranhense, Brasil SOUSA, Ana Paula Silva de Contaminação Aves limícolas Declínio populacional América do Sul Contamination Shorebirds Population decline South America Controle Populacional de Animais |
title_short |
Exposição de aves migratórias limícolas a metais pesados na costa maranhense, Brasil |
title_full |
Exposição de aves migratórias limícolas a metais pesados na costa maranhense, Brasil |
title_fullStr |
Exposição de aves migratórias limícolas a metais pesados na costa maranhense, Brasil |
title_full_unstemmed |
Exposição de aves migratórias limícolas a metais pesados na costa maranhense, Brasil |
title_sort |
Exposição de aves migratórias limícolas a metais pesados na costa maranhense, Brasil |
author |
SOUSA, Ana Paula Silva de |
author_facet |
SOUSA, Ana Paula Silva de |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
SANTOS, Ricardo Rodrigues dos |
dc.contributor.advisor1ID.fl_str_mv |
499.215.253-87 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/3450756019036388 |
dc.contributor.advisor-co1.fl_str_mv |
MEDEIROS, Manuel Alfredo Araujo |
dc.contributor.advisor-co1ID.fl_str_mv |
255.454.693-20 |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/1059798585946068 |
dc.contributor.referee1.fl_str_mv |
RODRIGUES, Roberta Costa |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/3159405873795347 |
dc.contributor.referee2.fl_str_mv |
FURTADO, Jomar Livramento Barros |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/1825174805506031 |
dc.contributor.authorID.fl_str_mv |
013.324.563-24 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/1810429007668291 |
dc.contributor.author.fl_str_mv |
SOUSA, Ana Paula Silva de |
contributor_str_mv |
SANTOS, Ricardo Rodrigues dos MEDEIROS, Manuel Alfredo Araujo RODRIGUES, Roberta Costa FURTADO, Jomar Livramento Barros |
dc.subject.por.fl_str_mv |
Contaminação Aves limícolas Declínio populacional América do Sul |
topic |
Contaminação Aves limícolas Declínio populacional América do Sul Contamination Shorebirds Population decline South America Controle Populacional de Animais |
dc.subject.eng.fl_str_mv |
Contamination Shorebirds Population decline South America |
dc.subject.cnpq.fl_str_mv |
Controle Populacional de Animais |
description |
Whereas heavy metal contamination may be associated with population decline of migratory Nearctic shorebirds, this study found that the assimilation of these contaminants by Calidris pusilla and Arenaria interpres in two wintering areas on the north coast of Brazil, in the State of Maranhão, can contribute as a factor for the population decline of the species. Metals cadmium, lead, copper, chromium, mercury, selenium and zinc were analyzed in contour feathers of 15 individuals of each species by atomic absorption spectrophotometer. There was a significant difference only for mercury between the two species. The average concentration of metals were below the threshold considered toxic to birds. The fact that the contamination did not reach the threshold considered harmful to both migratory species in this study is an indication that in this region, the heavy metal contamination is not considered a potential factor in the decline of populations of migratory birds that overwinter in north coast of Brazil, specially in Maranhão. However, migratory birds use different areas on the north coast of Brazil along different migration routes, which makes it necessary to expand the area in future studies. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-04-29 |
dc.date.accessioned.fl_str_mv |
2018-05-21T18:18:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SOUSA, Ana Paula Silva de. Exposição de aves migratórias limícolas a metais pesados na costa maranhense, Brasil. 2016. 41 f. Dissertação (Mestrado em Biodiversidade e Conservação) - Universidade Federal do Maranhão, São Luís, 2016. |
dc.identifier.uri.fl_str_mv |
https://tedebc.ufma.br/jspui/handle/tede/tede/2246 |
identifier_str_mv |
SOUSA, Ana Paula Silva de. Exposição de aves migratórias limícolas a metais pesados na costa maranhense, Brasil. 2016. 41 f. Dissertação (Mestrado em Biodiversidade e Conservação) - Universidade Federal do Maranhão, São Luís, 2016. |
url |
https://tedebc.ufma.br/jspui/handle/tede/tede/2246 |
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por |
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por |
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info:eu-repo/semantics/openAccess |
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application/pdf |
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Universidade Federal do Maranhão |
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PROGRAMA DE PÓS-GRADUAÇÃO EM BIODIVERSIDADE CONSERVAÇÃO/CCBS |
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UFMA |
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Brasil |
dc.publisher.department.fl_str_mv |
DEPARTAMENTO DE BIOLOGIA/CCBS |
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Universidade Federal do Maranhão |
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