Efeitos das mudanças climáticas e da extinção da megafauna na vegetação do Brasil

Detalhes bibliográficos
Ano de defesa: 2021
Autor(a) principal: Oliveira, Jacqueline Freitas lattes
Orientador(a): Ribeiro, Matheus de Souza Lima lattes
Banca de defesa: Ribeiro, Matheus de Souza Lima, Terribile, Levi Carina, Dantas, Mário Andrade Trindade
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal de Goiás
Programa de Pós-Graduação: Programa de Pós-graduação em Ecologia e Evolução (ICB)
Departamento: Instituto de Ciências Biológicas - ICB (RG)
País: Brasil
Palavras-chave em Português:
Palavras-chave em Inglês:
Área do conhecimento CNPq:
Link de acesso: http://repositorio.bc.ufg.br/tede/handle/tede/11712
Resumo: The end of the South American Pleistocene was characterized by great climatic variations that impacted all living organisms and led to the extinction of a large part of the megafauna. From this, several discussions arose about the causes and consequences of this extinction. In this study we investigate the relationship between climate change from the last glacial cycle, megafauna extinction and changes in terrestrial vegetation in Brazil. To find this relationship, we made a temporal correlation between dated megafauna fossils with pollen diagrams in four Brazilian regions: Central, Northeastern, Northwestern, and Southeastern. Of the four regions studied, only the Northeastern region had pollen data and adequate dates to carry out the complete analysis. Despite the lack of records dated in the Central, Northwestern and Southeastern regions, it was possible to analyze its vegetation over time. In all regions, it was possible to conclude that climate change was responsible for the extinction of the megafauna, but in the Northeast region the vegetation was still stable when it became extinct locally. In the Northeast, Northwest and Southeast regions, it was possible to identify that the absence of megafauna added to climatic effects altered the vegetation, while for the Central region it was possible to conclude that its absence did not influence the vegetation. Thus, the effects of the extinction of megaherbivores on vegetation depend on the ecosystem from which they were excluded.
id UFG-2_c18e96a5f56b8076facdefe2d46d248b
oai_identifier_str oai:repositorio.bc.ufg.br:tede/11712
network_acronym_str UFG-2
network_name_str Repositório Institucional da UFG
repository_id_str
spelling Ribeiro, Matheus de Souza Limahttp://lattes.cnpq.br/9592727826334407Ribeiro, Matheus de Souza LimaTerribile, Levi CarinaDantas, Mário Andrade Trindadehttp://lattes.cnpq.br/3194913231722346Oliveira, Jacqueline Freitas2021-10-29T11:50:15Z2021-10-29T11:50:15Z2021-07-03OLIVEIRA, J. F. Efeitos das mudanças climáticas e da extinção da megafauna na vegetação do Brasil. 2021. 52 f. Dissertação (Mestrado em Ecologia e Evolução) - Universidade Federal de Goiás, Goiânia, 2021.http://repositorio.bc.ufg.br/tede/handle/tede/11712The end of the South American Pleistocene was characterized by great climatic variations that impacted all living organisms and led to the extinction of a large part of the megafauna. From this, several discussions arose about the causes and consequences of this extinction. In this study we investigate the relationship between climate change from the last glacial cycle, megafauna extinction and changes in terrestrial vegetation in Brazil. To find this relationship, we made a temporal correlation between dated megafauna fossils with pollen diagrams in four Brazilian regions: Central, Northeastern, Northwestern, and Southeastern. Of the four regions studied, only the Northeastern region had pollen data and adequate dates to carry out the complete analysis. Despite the lack of records dated in the Central, Northwestern and Southeastern regions, it was possible to analyze its vegetation over time. In all regions, it was possible to conclude that climate change was responsible for the extinction of the megafauna, but in the Northeast region the vegetation was still stable when it became extinct locally. In the Northeast, Northwest and Southeast regions, it was possible to identify that the absence of megafauna added to climatic effects altered the vegetation, while for the Central region it was possible to conclude that its absence did not influence the vegetation. Thus, the effects of the extinction of megaherbivores on vegetation depend on the ecosystem from which they were excluded.O final do Pleistoceno sul-americano foi caracterizado por grandes variações climáticas que impactaram todos os organismos viventes e levaram à extinção de grande parte da megafauna. A partir disso, surgiram diversas discussões acerca das causas e das consequências dessa extinção. Neste estudo nós investigamos a relação entre as alterações climáticas do último ciclo glacial, a extinção da megafauna e as mudanças na vegetação terrestre do Brasil. Para encontrar essa relação, fizemos uma correlação temporal entre fósseis da megafauna datados com diagramas polínicos em quatro regiões brasileiras: Central, Nordeste, Noroeste, e Sudeste. Das quatro regiões estudadas, apenas a região Nordeste dispôs de dados polínicos e datações adequadas para realizar a análise completa. Apesar da falta de registros datados nas regiões Central, Noroeste e Sudeste, foi possível analisar sua vegetação ao longo do tempo. Em todas as regiões foi possível concluir que as mudanças climáticas foram responsáveis pela extinção da megafauna, mas que na região Nordeste a vegetação ainda estava estável quando ela se extinguiu localmente. Nas regiões Nordeste, Noroeste e Sudeste foi possível identificar que a ausência da megafauna somada a efeitos climáticos alterou a vegetação, já para a região Central foi possível concluir que sua ausência não influenciou a vegetação. Assim, os efeitos da extinção dos megaherbívoros sobre a vegetação dependem do ecossistema do qual eles foram excluídos.Submitted by Franciele Moreira (francielemoreyra@gmail.com) on 2021-10-25T19:20:45Z No. of bitstreams: 2 Dissertação - Jacqueline Freitas Oliveira - 2021.pdf: 6216740 bytes, checksum: 596c7d67099e804cb5f4c1e6ed51e5b1 (MD5) license_rdf: 805 bytes, checksum: 4460e5956bc1d1639be9ae6146a50347 (MD5)Rejected by Luciana Ferreira (lucgeral@gmail.com), reason: Observe os membros da banca em relação ao que consta na ata. on 2021-10-28T10:53:22Z (GMT)Submitted by Franciele Moreira (francielemoreyra@gmail.com) on 2021-10-28T20:29:42Z No. of bitstreams: 2 Dissertação - Jacqueline Freitas Oliveira - 2021.pdf: 6216740 bytes, checksum: 596c7d67099e804cb5f4c1e6ed51e5b1 (MD5) license_rdf: 805 bytes, checksum: 4460e5956bc1d1639be9ae6146a50347 (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2021-10-29T11:50:14Z (GMT) No. of bitstreams: 2 Dissertação - Jacqueline Freitas Oliveira - 2021.pdf: 6216740 bytes, checksum: 596c7d67099e804cb5f4c1e6ed51e5b1 (MD5) license_rdf: 805 bytes, checksum: 4460e5956bc1d1639be9ae6146a50347 (MD5)Made available in DSpace on 2021-10-29T11:50:15Z (GMT). No. of bitstreams: 2 Dissertação - Jacqueline Freitas Oliveira - 2021.pdf: 6216740 bytes, checksum: 596c7d67099e804cb5f4c1e6ed51e5b1 (MD5) license_rdf: 805 bytes, checksum: 4460e5956bc1d1639be9ae6146a50347 (MD5) Previous issue date: 2021-07-03Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESporUniversidade Federal de GoiásPrograma de Pós-graduação em Ecologia e Evolução (ICB)UFGBrasilInstituto de Ciências Biológicas - ICB (RG)Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessMegafaunaPleistocenoExtinçãoPalinologiaMegafaunaPleistoceneExtinctionPalinologyCIENCIAS BIOLOGICASEfeitos das mudanças climáticas e da extinção da megafauna na vegetação do BrasilClimate change and megafauna extinction effects on Brazilian vegetationinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis35500500500500231721reponame:Repositório Institucional da UFGinstname:Universidade Federal de Goiás (UFG)instacron:UFGCC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8805http://repositorio.bc.ufg.br/tede/bitstreams/b818bbfa-dd9d-44de-aa75-ac9d29e669e7/download4460e5956bc1d1639be9ae6146a50347MD52ORIGINALDissertação - Jacqueline Freitas Oliveira - 2021.pdfDissertação - Jacqueline Freitas Oliveira - 2021.pdfapplication/pdf6216740http://repositorio.bc.ufg.br/tede/bitstreams/703e51bd-6a73-4d9e-b0bc-7daab7341f70/download596c7d67099e804cb5f4c1e6ed51e5b1MD53LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://repositorio.bc.ufg.br/tede/bitstreams/4b30b77f-5df1-4857-9c2e-f2b42d825728/download8a4605be74aa9ea9d79846c1fba20a33MD51tede/117122021-10-29 08:50:15.212http://creativecommons.org/licenses/by-nc-nd/4.0/Attribution-NonCommercial-NoDerivatives 4.0 Internationalopen.accessoai:repositorio.bc.ufg.br:tede/11712http://repositorio.bc.ufg.br/tedeRepositório InstitucionalPUBhttp://repositorio.bc.ufg.br/oai/requesttasesdissertacoes.bc@ufg.bropendoar:2021-10-29T11:50:15Repositório Institucional da UFG - Universidade Federal de Goiás (UFG)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
dc.title.pt_BR.fl_str_mv Efeitos das mudanças climáticas e da extinção da megafauna na vegetação do Brasil
dc.title.alternative.eng.fl_str_mv Climate change and megafauna extinction effects on Brazilian vegetation
title Efeitos das mudanças climáticas e da extinção da megafauna na vegetação do Brasil
spellingShingle Efeitos das mudanças climáticas e da extinção da megafauna na vegetação do Brasil
Oliveira, Jacqueline Freitas
Megafauna
Pleistoceno
Extinção
Palinologia
Megafauna
Pleistocene
Extinction
Palinology
CIENCIAS BIOLOGICAS
title_short Efeitos das mudanças climáticas e da extinção da megafauna na vegetação do Brasil
title_full Efeitos das mudanças climáticas e da extinção da megafauna na vegetação do Brasil
title_fullStr Efeitos das mudanças climáticas e da extinção da megafauna na vegetação do Brasil
title_full_unstemmed Efeitos das mudanças climáticas e da extinção da megafauna na vegetação do Brasil
title_sort Efeitos das mudanças climáticas e da extinção da megafauna na vegetação do Brasil
author Oliveira, Jacqueline Freitas
author_facet Oliveira, Jacqueline Freitas
author_role author
dc.contributor.advisor1.fl_str_mv Ribeiro, Matheus de Souza Lima
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/9592727826334407
dc.contributor.referee1.fl_str_mv Ribeiro, Matheus de Souza Lima
dc.contributor.referee2.fl_str_mv Terribile, Levi Carina
dc.contributor.referee3.fl_str_mv Dantas, Mário Andrade Trindade
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/3194913231722346
dc.contributor.author.fl_str_mv Oliveira, Jacqueline Freitas
contributor_str_mv Ribeiro, Matheus de Souza Lima
Ribeiro, Matheus de Souza Lima
Terribile, Levi Carina
Dantas, Mário Andrade Trindade
dc.subject.por.fl_str_mv Megafauna
Pleistoceno
Extinção
Palinologia
topic Megafauna
Pleistoceno
Extinção
Palinologia
Megafauna
Pleistocene
Extinction
Palinology
CIENCIAS BIOLOGICAS
dc.subject.eng.fl_str_mv Megafauna
Pleistocene
Extinction
Palinology
dc.subject.cnpq.fl_str_mv CIENCIAS BIOLOGICAS
description The end of the South American Pleistocene was characterized by great climatic variations that impacted all living organisms and led to the extinction of a large part of the megafauna. From this, several discussions arose about the causes and consequences of this extinction. In this study we investigate the relationship between climate change from the last glacial cycle, megafauna extinction and changes in terrestrial vegetation in Brazil. To find this relationship, we made a temporal correlation between dated megafauna fossils with pollen diagrams in four Brazilian regions: Central, Northeastern, Northwestern, and Southeastern. Of the four regions studied, only the Northeastern region had pollen data and adequate dates to carry out the complete analysis. Despite the lack of records dated in the Central, Northwestern and Southeastern regions, it was possible to analyze its vegetation over time. In all regions, it was possible to conclude that climate change was responsible for the extinction of the megafauna, but in the Northeast region the vegetation was still stable when it became extinct locally. In the Northeast, Northwest and Southeast regions, it was possible to identify that the absence of megafauna added to climatic effects altered the vegetation, while for the Central region it was possible to conclude that its absence did not influence the vegetation. Thus, the effects of the extinction of megaherbivores on vegetation depend on the ecosystem from which they were excluded.
publishDate 2021
dc.date.accessioned.fl_str_mv 2021-10-29T11:50:15Z
dc.date.available.fl_str_mv 2021-10-29T11:50:15Z
dc.date.issued.fl_str_mv 2021-07-03
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 OLIVEIRA, J. F. Efeitos das mudanças climáticas e da extinção da megafauna na vegetação do Brasil. 2021. 52 f. Dissertação (Mestrado em Ecologia e Evolução) - Universidade Federal de Goiás, Goiânia, 2021.
dc.identifier.uri.fl_str_mv http://repositorio.bc.ufg.br/tede/handle/tede/11712
identifier_str_mv OLIVEIRA, J. F. Efeitos das mudanças climáticas e da extinção da megafauna na vegetação do Brasil. 2021. 52 f. Dissertação (Mestrado em Ecologia e Evolução) - Universidade Federal de Goiás, Goiânia, 2021.
url http://repositorio.bc.ufg.br/tede/handle/tede/11712
dc.language.iso.fl_str_mv por
language por
dc.relation.program.fl_str_mv 35
dc.relation.confidence.fl_str_mv 500
500
500
500
dc.relation.department.fl_str_mv 23
dc.relation.cnpq.fl_str_mv 172
dc.relation.sponsorship.fl_str_mv 1
dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Universidade Federal de Goiás
dc.publisher.program.fl_str_mv Programa de Pós-graduação em Ecologia e Evolução (ICB)
dc.publisher.initials.fl_str_mv UFG
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv Instituto de Ciências Biológicas - ICB (RG)
publisher.none.fl_str_mv Universidade Federal de Goiás
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFG
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Repositório Institucional da UFG
collection Repositório Institucional da UFG
bitstream.url.fl_str_mv http://repositorio.bc.ufg.br/tede/bitstreams/b818bbfa-dd9d-44de-aa75-ac9d29e669e7/download
http://repositorio.bc.ufg.br/tede/bitstreams/703e51bd-6a73-4d9e-b0bc-7daab7341f70/download
http://repositorio.bc.ufg.br/tede/bitstreams/4b30b77f-5df1-4857-9c2e-f2b42d825728/download
bitstream.checksum.fl_str_mv 4460e5956bc1d1639be9ae6146a50347
596c7d67099e804cb5f4c1e6ed51e5b1
8a4605be74aa9ea9d79846c1fba20a33
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFG - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv tasesdissertacoes.bc@ufg.br
_version_ 1798044983660380160