Results confirm a relatively dry setting during the last glacial (MIS 3 and LGM) in Carajás, Amazonia: A comment on Guimarães et al.

D'Apolito, Carlos; Latrubesse, Edgardo Manuel; Absy, Maria Lúcia

Artigo

Results confirm a relatively dry setting during the last glacial (MIS 3 and LGM) in Carajás, Amazonia: A comment on Guimarães et al.

Recent pollen rain data from lake Amendoim in Carajás (southeastern Amazonia) revealed a dominant forest formation spectrum where, locally, montane savannas occupy a larger proportion of the lake’s basin (>90%). From this surprising result, we learn that local savanna coverage may not necessarily be...

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Autor principal:	D'Apolito, Carlos
Outros Autores:	Latrubesse, Edgardo Manuel, Absy, Maria Lúcia
Grau:	Artigo
Idioma:	English
Publicado em:	Holocene 2020
Assuntos:	Abundance Geological Record Lacustrine Deposit Last Glacial Palynology Savanna Tropical Forest Amazonia Brasil Carajas Para [brazil]
Acesso em linha:	https://repositorio.inpa.gov.br/handle/1/16965

id	oai:repositorio:1-16965
recordtype	dspace
spelling	oai:repositorio:1-16965 Results confirm a relatively dry setting during the last glacial (MIS 3 and LGM) in Carajás, Amazonia: A comment on Guimarães et al. D'Apolito, Carlos Latrubesse, Edgardo Manuel Absy, Maria Lúcia Abundance Geological Record Lacustrine Deposit Last Glacial Palynology Savanna Tropical Forest Amazonia Brasil Carajas Para [brazil] Recent pollen rain data from lake Amendoim in Carajás (southeastern Amazonia) revealed a dominant forest formation spectrum where, locally, montane savannas occupy a larger proportion of the lake’s basin (>90%). From this surprising result, we learn that local savanna coverage may not necessarily be enough to influence and dominate the pollen spectrum recorded in the lake sediments when rainforest is widespread in the surrounding areas. Therefore, even a minor proportion of tall forest in a savanna environment can have a significant influence on pollen deposition, masking the savanna signal in the stratigraphic record. Thus, when interpreting the last glacial pollen record of Carajás, the increased abundance of savanna taxa is an unequivocal indicator of local to regional savannas expansion. The postulation of a continued rainforest formation during the glacial times is an unsustainable alternative. © 2017, © The Author(s) 2017. 2020-06-15T21:37:41Z 2020-06-15T21:37:41Z 2018 Artigo https://repositorio.inpa.gov.br/handle/1/16965 10.1177/0959683617721333 en Volume 28, Número 2, Pags. 330-331 Restrito Holocene
institution	Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection	INPA-RI
language	English
topic	Abundance Geological Record Lacustrine Deposit Last Glacial Palynology Savanna Tropical Forest Amazonia Brasil Carajas Para [brazil]
spellingShingle	Abundance Geological Record Lacustrine Deposit Last Glacial Palynology Savanna Tropical Forest Amazonia Brasil Carajas Para [brazil] D'Apolito, Carlos Results confirm a relatively dry setting during the last glacial (MIS 3 and LGM) in Carajás, Amazonia: A comment on Guimarães et al.
topic_facet	Abundance Geological Record Lacustrine Deposit Last Glacial Palynology Savanna Tropical Forest Amazonia Brasil Carajas Para [brazil]
description	Recent pollen rain data from lake Amendoim in Carajás (southeastern Amazonia) revealed a dominant forest formation spectrum where, locally, montane savannas occupy a larger proportion of the lake’s basin (>90%). From this surprising result, we learn that local savanna coverage may not necessarily be enough to influence and dominate the pollen spectrum recorded in the lake sediments when rainforest is widespread in the surrounding areas. Therefore, even a minor proportion of tall forest in a savanna environment can have a significant influence on pollen deposition, masking the savanna signal in the stratigraphic record. Thus, when interpreting the last glacial pollen record of Carajás, the increased abundance of savanna taxa is an unequivocal indicator of local to regional savannas expansion. The postulation of a continued rainforest formation during the glacial times is an unsustainable alternative. © 2017, © The Author(s) 2017.
format	Artigo
author	D'Apolito, Carlos
author2	Latrubesse, Edgardo Manuel Absy, Maria Lúcia
author2Str	Latrubesse, Edgardo Manuel Absy, Maria Lúcia
title	Results confirm a relatively dry setting during the last glacial (MIS 3 and LGM) in Carajás, Amazonia: A comment on Guimarães et al.
title_short	Results confirm a relatively dry setting during the last glacial (MIS 3 and LGM) in Carajás, Amazonia: A comment on Guimarães et al.
title_full	Results confirm a relatively dry setting during the last glacial (MIS 3 and LGM) in Carajás, Amazonia: A comment on Guimarães et al.
title_fullStr	Results confirm a relatively dry setting during the last glacial (MIS 3 and LGM) in Carajás, Amazonia: A comment on Guimarães et al.
title_full_unstemmed	Results confirm a relatively dry setting during the last glacial (MIS 3 and LGM) in Carajás, Amazonia: A comment on Guimarães et al.
title_sort	results confirm a relatively dry setting during the last glacial (mis 3 and lgm) in carajás, amazonia: a comment on guimarães et al.
publisher	Holocene
publishDate	2020
url	https://repositorio.inpa.gov.br/handle/1/16965
_version_	1787141626346340352
score	11.755432

Results confirm a relatively dry setting during the last glacial (MIS 3 and LGM) in Carajás, Amazonia: A comment on Guimarães et al.

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