Pollen counts of sediment core GeoB16205-4 from Parnaiba, NE Brazil, supplement to: Bouimetarhan, Ilham; Chiessi, Cristiano Mazur; González-Arango, Catalina; Dupont, Lydie M; Voigt, Ines; Prange, Matthias; Zonneveld, Karin A F (2018): Intermittent development of forest corridors in northeastern Brazil during the last deglaciation: Climatic and ecologic evidence. Quaternary Science Reviews, 192, 86-96
The semi-arid northeastern (NE) Brazil vegetation is largely dominated by Caatinga, one of the largest and richest dry forests in the world. Caatinga is a strategic biome, since it has borders with Cerrado, Atlantic forests and the Amazon, acting as a potential corridor (or barrier) for biotic inter...
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PANGAEA - Data Publisher for Earth & Environmental Science
2018
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Online Access: | https://dx.doi.org/10.1594/pangaea.889701 https://doi.pangaea.de/10.1594/PANGAEA.889701 |
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ftdatacite:10.1594/pangaea.889701 2023-05-15T17:37:00+02:00 Pollen counts of sediment core GeoB16205-4 from Parnaiba, NE Brazil, supplement to: Bouimetarhan, Ilham; Chiessi, Cristiano Mazur; González-Arango, Catalina; Dupont, Lydie M; Voigt, Ines; Prange, Matthias; Zonneveld, Karin A F (2018): Intermittent development of forest corridors in northeastern Brazil during the last deglaciation: Climatic and ecologic evidence. Quaternary Science Reviews, 192, 86-96 Bouimetarhan, Ilham Chiessi, Cristiano Mazur González-Arango, Catalina Dupont, Lydie M Voigt, Ines Prange, Matthias Zonneveld, Karin A F 2018 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.889701 https://doi.pangaea.de/10.1594/PANGAEA.889701 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/j.quascirev.2018.05.026 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY AGE DEPTH, sediment/rock Gramineae Cyperaceae Rhizophora Typha Podocarpus Artemisia Asteroideae Ephedra distachya-type Ephedra fragilis-type Amaranthaceae/Chenopodiaceae Plantago Acacia Boscia-type Mitracarpus Ziziphus Mimosa-type Borreria Cassia-type Celtis Phyllanthus-type Piliostigma Vernonia-type Alchornea Stereospermum-type Euphorbia-type Rubiaceae spp. Galium Ilex Scrophulariaceae/Solanaceae Fabaceae Rutaceae Caesalpiniaceae Hedyosmum/Convolvulaceae Anacardiaceae Acanthaceae Bertiera-type Ambrosia Trichilia Malvaceae Arecaceae Myricaceae Didynopamax Sporomorphs indeterminables Melastomataceae Burseraceae Pollen total Spores total Pollen and spores Particle, charred Gravity corer Kiel type Counting, palynology MSM20/3 Maria S. Merian Center for Marine Environmental Sciences MARUM Supplementary Dataset dataset Dataset 2018 ftdatacite https://doi.org/10.1594/pangaea.889701 https://doi.org/10.1016/j.quascirev.2018.05.026 2022-02-08T16:24:46Z The semi-arid northeastern (NE) Brazil vegetation is largely dominated by Caatinga, one of the largest and richest dry forests in the world. Caatinga is a strategic biome, since it has borders with Cerrado, Atlantic forests and the Amazon, acting as a potential corridor (or barrier) for biotic interchange between these regions during evolutionary times. Therefore, accurate reconstructions of past vegetation, ecological and hydrological changes in this area are critical to understanding the dynamics of biome boundaries that may play an important role in dispersal and diversi!cation mechanisms and, more specifically, the link between the long-term climate variability and tropical biodiversity. Here, we present high-resolution palynological and elemental data from marine core GeoB16205-4 retrieved off the Parnaíba River mouth (NE Brazil) mainly covering the Younger Dryas (YD). We show that the YD interval was predominantly wet in NE Brazil, yet it was not homogenous and two distinct phases could be distinguished. A marked intensi!cation of wet conditions between ~12.3 and 11.6 cal kyr BP was recorded by the expansion of tropical rainforest and tree ferns. These results are in agreement with the transient TraCE-21k coupled climate model simulation. We infer that the second pluvial phase of the YD is related to a weak AMOC due to meltwater pulses in the North Atlantic, which forces a southward shift of the Intertropical Convergence Zone and its associated rainfall. Our records provide new evidence on the establishment of an “eastern forest corridor” in the nowadays semi-arid Caatinga allowing for past biotic interchanges of plant species. Dataset North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Catalina ENVELOPE(-59.633,-59.633,-62.333,-62.333) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
AGE DEPTH, sediment/rock Gramineae Cyperaceae Rhizophora Typha Podocarpus Artemisia Asteroideae Ephedra distachya-type Ephedra fragilis-type Amaranthaceae/Chenopodiaceae Plantago Acacia Boscia-type Mitracarpus Ziziphus Mimosa-type Borreria Cassia-type Celtis Phyllanthus-type Piliostigma Vernonia-type Alchornea Stereospermum-type Euphorbia-type Rubiaceae spp. Galium Ilex Scrophulariaceae/Solanaceae Fabaceae Rutaceae Caesalpiniaceae Hedyosmum/Convolvulaceae Anacardiaceae Acanthaceae Bertiera-type Ambrosia Trichilia Malvaceae Arecaceae Myricaceae Didynopamax Sporomorphs indeterminables Melastomataceae Burseraceae Pollen total Spores total Pollen and spores Particle, charred Gravity corer Kiel type Counting, palynology MSM20/3 Maria S. Merian Center for Marine Environmental Sciences MARUM |
spellingShingle |
AGE DEPTH, sediment/rock Gramineae Cyperaceae Rhizophora Typha Podocarpus Artemisia Asteroideae Ephedra distachya-type Ephedra fragilis-type Amaranthaceae/Chenopodiaceae Plantago Acacia Boscia-type Mitracarpus Ziziphus Mimosa-type Borreria Cassia-type Celtis Phyllanthus-type Piliostigma Vernonia-type Alchornea Stereospermum-type Euphorbia-type Rubiaceae spp. Galium Ilex Scrophulariaceae/Solanaceae Fabaceae Rutaceae Caesalpiniaceae Hedyosmum/Convolvulaceae Anacardiaceae Acanthaceae Bertiera-type Ambrosia Trichilia Malvaceae Arecaceae Myricaceae Didynopamax Sporomorphs indeterminables Melastomataceae Burseraceae Pollen total Spores total Pollen and spores Particle, charred Gravity corer Kiel type Counting, palynology MSM20/3 Maria S. Merian Center for Marine Environmental Sciences MARUM Bouimetarhan, Ilham Chiessi, Cristiano Mazur González-Arango, Catalina Dupont, Lydie M Voigt, Ines Prange, Matthias Zonneveld, Karin A F Pollen counts of sediment core GeoB16205-4 from Parnaiba, NE Brazil, supplement to: Bouimetarhan, Ilham; Chiessi, Cristiano Mazur; González-Arango, Catalina; Dupont, Lydie M; Voigt, Ines; Prange, Matthias; Zonneveld, Karin A F (2018): Intermittent development of forest corridors in northeastern Brazil during the last deglaciation: Climatic and ecologic evidence. Quaternary Science Reviews, 192, 86-96 |
topic_facet |
AGE DEPTH, sediment/rock Gramineae Cyperaceae Rhizophora Typha Podocarpus Artemisia Asteroideae Ephedra distachya-type Ephedra fragilis-type Amaranthaceae/Chenopodiaceae Plantago Acacia Boscia-type Mitracarpus Ziziphus Mimosa-type Borreria Cassia-type Celtis Phyllanthus-type Piliostigma Vernonia-type Alchornea Stereospermum-type Euphorbia-type Rubiaceae spp. Galium Ilex Scrophulariaceae/Solanaceae Fabaceae Rutaceae Caesalpiniaceae Hedyosmum/Convolvulaceae Anacardiaceae Acanthaceae Bertiera-type Ambrosia Trichilia Malvaceae Arecaceae Myricaceae Didynopamax Sporomorphs indeterminables Melastomataceae Burseraceae Pollen total Spores total Pollen and spores Particle, charred Gravity corer Kiel type Counting, palynology MSM20/3 Maria S. Merian Center for Marine Environmental Sciences MARUM |
description |
The semi-arid northeastern (NE) Brazil vegetation is largely dominated by Caatinga, one of the largest and richest dry forests in the world. Caatinga is a strategic biome, since it has borders with Cerrado, Atlantic forests and the Amazon, acting as a potential corridor (or barrier) for biotic interchange between these regions during evolutionary times. Therefore, accurate reconstructions of past vegetation, ecological and hydrological changes in this area are critical to understanding the dynamics of biome boundaries that may play an important role in dispersal and diversi!cation mechanisms and, more specifically, the link between the long-term climate variability and tropical biodiversity. Here, we present high-resolution palynological and elemental data from marine core GeoB16205-4 retrieved off the Parnaíba River mouth (NE Brazil) mainly covering the Younger Dryas (YD). We show that the YD interval was predominantly wet in NE Brazil, yet it was not homogenous and two distinct phases could be distinguished. A marked intensi!cation of wet conditions between ~12.3 and 11.6 cal kyr BP was recorded by the expansion of tropical rainforest and tree ferns. These results are in agreement with the transient TraCE-21k coupled climate model simulation. We infer that the second pluvial phase of the YD is related to a weak AMOC due to meltwater pulses in the North Atlantic, which forces a southward shift of the Intertropical Convergence Zone and its associated rainfall. Our records provide new evidence on the establishment of an “eastern forest corridor” in the nowadays semi-arid Caatinga allowing for past biotic interchanges of plant species. |
format |
Dataset |
author |
Bouimetarhan, Ilham Chiessi, Cristiano Mazur González-Arango, Catalina Dupont, Lydie M Voigt, Ines Prange, Matthias Zonneveld, Karin A F |
author_facet |
Bouimetarhan, Ilham Chiessi, Cristiano Mazur González-Arango, Catalina Dupont, Lydie M Voigt, Ines Prange, Matthias Zonneveld, Karin A F |
author_sort |
Bouimetarhan, Ilham |
title |
Pollen counts of sediment core GeoB16205-4 from Parnaiba, NE Brazil, supplement to: Bouimetarhan, Ilham; Chiessi, Cristiano Mazur; González-Arango, Catalina; Dupont, Lydie M; Voigt, Ines; Prange, Matthias; Zonneveld, Karin A F (2018): Intermittent development of forest corridors in northeastern Brazil during the last deglaciation: Climatic and ecologic evidence. Quaternary Science Reviews, 192, 86-96 |
title_short |
Pollen counts of sediment core GeoB16205-4 from Parnaiba, NE Brazil, supplement to: Bouimetarhan, Ilham; Chiessi, Cristiano Mazur; González-Arango, Catalina; Dupont, Lydie M; Voigt, Ines; Prange, Matthias; Zonneveld, Karin A F (2018): Intermittent development of forest corridors in northeastern Brazil during the last deglaciation: Climatic and ecologic evidence. Quaternary Science Reviews, 192, 86-96 |
title_full |
Pollen counts of sediment core GeoB16205-4 from Parnaiba, NE Brazil, supplement to: Bouimetarhan, Ilham; Chiessi, Cristiano Mazur; González-Arango, Catalina; Dupont, Lydie M; Voigt, Ines; Prange, Matthias; Zonneveld, Karin A F (2018): Intermittent development of forest corridors in northeastern Brazil during the last deglaciation: Climatic and ecologic evidence. Quaternary Science Reviews, 192, 86-96 |
title_fullStr |
Pollen counts of sediment core GeoB16205-4 from Parnaiba, NE Brazil, supplement to: Bouimetarhan, Ilham; Chiessi, Cristiano Mazur; González-Arango, Catalina; Dupont, Lydie M; Voigt, Ines; Prange, Matthias; Zonneveld, Karin A F (2018): Intermittent development of forest corridors in northeastern Brazil during the last deglaciation: Climatic and ecologic evidence. Quaternary Science Reviews, 192, 86-96 |
title_full_unstemmed |
Pollen counts of sediment core GeoB16205-4 from Parnaiba, NE Brazil, supplement to: Bouimetarhan, Ilham; Chiessi, Cristiano Mazur; González-Arango, Catalina; Dupont, Lydie M; Voigt, Ines; Prange, Matthias; Zonneveld, Karin A F (2018): Intermittent development of forest corridors in northeastern Brazil during the last deglaciation: Climatic and ecologic evidence. Quaternary Science Reviews, 192, 86-96 |
title_sort |
pollen counts of sediment core geob16205-4 from parnaiba, ne brazil, supplement to: bouimetarhan, ilham; chiessi, cristiano mazur; gonzález-arango, catalina; dupont, lydie m; voigt, ines; prange, matthias; zonneveld, karin a f (2018): intermittent development of forest corridors in northeastern brazil during the last deglaciation: climatic and ecologic evidence. quaternary science reviews, 192, 86-96 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2018 |
url |
https://dx.doi.org/10.1594/pangaea.889701 https://doi.pangaea.de/10.1594/PANGAEA.889701 |
long_lat |
ENVELOPE(-59.633,-59.633,-62.333,-62.333) |
geographic |
Catalina |
geographic_facet |
Catalina |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://dx.doi.org/10.1016/j.quascirev.2018.05.026 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.889701 https://doi.org/10.1016/j.quascirev.2018.05.026 |
_version_ |
1766136687864315904 |