Holocene diatoms from Xingu river: new records for the Brazilian Amazon and Brazil
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Hoehnea |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2236-89062021000100217 |
Resumo: | ABSTRACT Present study is the floristic survey and the distribution of diatoms observed in two sediment cores of the Xingu river, Pará State, north Brazil, and represents the past ~6,000 cal yr BP. Thirty-eight taxa distributed in twenty genera were recorded, among which five were new records for Brazil and nineteen new for the Brazilian Amazon. The most representative genus based on species number was Gomphonema Ehrenberg with six species. In brief, present new records represent a 75% increase in the total number of records for the Brazilian Amazon, and indicates that this region has not only been poorly investigated, but also suggests that its biodiversity assessment is underestimated. These findings highlight the efficacy of the paleolimnological approach as a tool for assessing biodiversity before the human impacts begin to affect the pristine conditions of the area. |
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Holocene diatoms from Xingu river: new records for the Brazilian Amazon and Brazilbiodiversitycorediatomsfloristic surveypaleolimnologyABSTRACT Present study is the floristic survey and the distribution of diatoms observed in two sediment cores of the Xingu river, Pará State, north Brazil, and represents the past ~6,000 cal yr BP. Thirty-eight taxa distributed in twenty genera were recorded, among which five were new records for Brazil and nineteen new for the Brazilian Amazon. The most representative genus based on species number was Gomphonema Ehrenberg with six species. In brief, present new records represent a 75% increase in the total number of records for the Brazilian Amazon, and indicates that this region has not only been poorly investigated, but also suggests that its biodiversity assessment is underestimated. These findings highlight the efficacy of the paleolimnological approach as a tool for assessing biodiversity before the human impacts begin to affect the pristine conditions of the area.Instituto de Pesquisas Ambientais2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2236-89062021000100217Hoehnea v.48 2021reponame:Hoehneainstname:Instituto de Botânica (IBT)instacron:IBT10.1590/2236-8906-79/2020info:eu-repo/semantics/openAccessFaustino,Samantha BorgesMorais,Krysna S. deBicudo,Carlos Eduardo de MattosBicudo,Denise Ceng2021-12-15T00:00:00Zoai:scielo:S2236-89062021000100217Revistahttp://www.ibot.sp.gov.br/publicacoes/hoehnea/sobre_hoehnea.phpPUBhttps://old.scielo.br/oai/scielo-oai.php||hoehneaibt@gmail.com2236-89060073-2877opendoar:2021-12-15T00:00Hoehnea - Instituto de Botânica (IBT)false |
dc.title.none.fl_str_mv |
Holocene diatoms from Xingu river: new records for the Brazilian Amazon and Brazil |
title |
Holocene diatoms from Xingu river: new records for the Brazilian Amazon and Brazil |
spellingShingle |
Holocene diatoms from Xingu river: new records for the Brazilian Amazon and Brazil Faustino,Samantha Borges biodiversity core diatoms floristic survey paleolimnology |
title_short |
Holocene diatoms from Xingu river: new records for the Brazilian Amazon and Brazil |
title_full |
Holocene diatoms from Xingu river: new records for the Brazilian Amazon and Brazil |
title_fullStr |
Holocene diatoms from Xingu river: new records for the Brazilian Amazon and Brazil |
title_full_unstemmed |
Holocene diatoms from Xingu river: new records for the Brazilian Amazon and Brazil |
title_sort |
Holocene diatoms from Xingu river: new records for the Brazilian Amazon and Brazil |
author |
Faustino,Samantha Borges |
author_facet |
Faustino,Samantha Borges Morais,Krysna S. de Bicudo,Carlos Eduardo de Mattos Bicudo,Denise C |
author_role |
author |
author2 |
Morais,Krysna S. de Bicudo,Carlos Eduardo de Mattos Bicudo,Denise C |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Faustino,Samantha Borges Morais,Krysna S. de Bicudo,Carlos Eduardo de Mattos Bicudo,Denise C |
dc.subject.por.fl_str_mv |
biodiversity core diatoms floristic survey paleolimnology |
topic |
biodiversity core diatoms floristic survey paleolimnology |
description |
ABSTRACT Present study is the floristic survey and the distribution of diatoms observed in two sediment cores of the Xingu river, Pará State, north Brazil, and represents the past ~6,000 cal yr BP. Thirty-eight taxa distributed in twenty genera were recorded, among which five were new records for Brazil and nineteen new for the Brazilian Amazon. The most representative genus based on species number was Gomphonema Ehrenberg with six species. In brief, present new records represent a 75% increase in the total number of records for the Brazilian Amazon, and indicates that this region has not only been poorly investigated, but also suggests that its biodiversity assessment is underestimated. These findings highlight the efficacy of the paleolimnological approach as a tool for assessing biodiversity before the human impacts begin to affect the pristine conditions of the area. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2236-89062021000100217 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2236-89062021000100217 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/2236-8906-79/2020 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto de Pesquisas Ambientais |
publisher.none.fl_str_mv |
Instituto de Pesquisas Ambientais |
dc.source.none.fl_str_mv |
Hoehnea v.48 2021 reponame:Hoehnea instname:Instituto de Botânica (IBT) instacron:IBT |
instname_str |
Instituto de Botânica (IBT) |
instacron_str |
IBT |
institution |
IBT |
reponame_str |
Hoehnea |
collection |
Hoehnea |
repository.name.fl_str_mv |
Hoehnea - Instituto de Botânica (IBT) |
repository.mail.fl_str_mv |
||hoehneaibt@gmail.com |
_version_ |
1754193648471244800 |