The movement of pre-adapted cool taxa in north-central Amazonia during the last glacial
The effects of climate change on the lowland vegetation of Amazonia during the last glacial cycle are partially known for the middle and late Pleniglacial intervals (late MIS 3, 59–24 ka and MIS 2, 24–11 ka), but are still unclear for older stages of the last glacial and during the last interglacial...
| Autor principal: | D'Apolito, Carlos |
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| Outros Autores: | Absy, Maria Lúcia, Latrubesse, Edgardo Manuel |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Quaternary Science Reviews
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/17077 |
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oai:repositorio:1-17077 |
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oai:repositorio:1-17077 The movement of pre-adapted cool taxa in north-central Amazonia during the last glacial D'Apolito, Carlos Absy, Maria Lúcia Latrubesse, Edgardo Manuel Climate Change Forestry Plants (botany) Vegetation Amazonia Glacial Plant Migration Pollen Vegetation Structure Glacial Geology Angiosperm Biome Climate Change Coniferous Tree Environmental Change Forest Ecosystem Glacial-interglacial Cycle Holocene Last Glacial Paleoclimate Plant Pollen Vegetation Cover Vegetation Structure Amazonia Alnus Hedyosmum Myrsine Podocarpus The effects of climate change on the lowland vegetation of Amazonia during the last glacial cycle are partially known for the middle and late Pleniglacial intervals (late MIS 3, 59–24 ka and MIS 2, 24–11 ka), but are still unclear for older stages of the last glacial and during the last interglacial. It is known that a more seasonal dry-wet climate caused marginal forest retraction and together with cooling rearranged forest composition to some extent. This is observed in pollen records across Amazonia depicting presence of taxa at glacial times in localities where they do not live presently. The understanding of taxa migration is hindered by the lack of continuous interglacial-glacial lowland records. We present new data from a known locality in NW Amazonia (Six Lakes Hill), showing a vegetation record that probably started during MIS 5 (130–71 ka) and lasted until the onset of the Holocene. The vegetation record unravels a novel pattern in tree taxa migration: (1) from the beginning of this cycle Podocarpus and Myrsine are recorded and (2) only later do Hedyosmum and Alnus appear. The latter group is largely restricted to montane biomes or more distant locations outside Amazonia, whereas the first is found in lowlands close to the study site on sandy soils. These findings imply that Podocarpus and Myrsine responded to environmental changes equally and this reflects their concomitant niche use in NW Amazonia. Temperature drop is not discarded as a trigger of internal forest composition change, but its effects are clearer later in the Pleniglacial rather than the Early Glacial. Therefore early climatic/environmental changes had a first order effect on vegetation that invoke alternative explanations. We claim last glacial climate-induced modifications on forest composition favoured the expansion of geomorphologic-soil related processes that initiated forest rearrangement. © 2017 Elsevier Ltd 2020-06-15T21:38:38Z 2020-06-15T21:38:38Z 2017 Artigo https://repositorio.inpa.gov.br/handle/1/17077 10.1016/j.quascirev.2017.05.017 en Volume 169, Pags. 1-12 Restrito Quaternary Science Reviews |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Climate Change Forestry Plants (botany) Vegetation Amazonia Glacial Plant Migration Pollen Vegetation Structure Glacial Geology Angiosperm Biome Climate Change Coniferous Tree Environmental Change Forest Ecosystem Glacial-interglacial Cycle Holocene Last Glacial Paleoclimate Plant Pollen Vegetation Cover Vegetation Structure Amazonia Alnus Hedyosmum Myrsine Podocarpus |
| spellingShingle |
Climate Change Forestry Plants (botany) Vegetation Amazonia Glacial Plant Migration Pollen Vegetation Structure Glacial Geology Angiosperm Biome Climate Change Coniferous Tree Environmental Change Forest Ecosystem Glacial-interglacial Cycle Holocene Last Glacial Paleoclimate Plant Pollen Vegetation Cover Vegetation Structure Amazonia Alnus Hedyosmum Myrsine Podocarpus D'Apolito, Carlos The movement of pre-adapted cool taxa in north-central Amazonia during the last glacial |
| topic_facet |
Climate Change Forestry Plants (botany) Vegetation Amazonia Glacial Plant Migration Pollen Vegetation Structure Glacial Geology Angiosperm Biome Climate Change Coniferous Tree Environmental Change Forest Ecosystem Glacial-interglacial Cycle Holocene Last Glacial Paleoclimate Plant Pollen Vegetation Cover Vegetation Structure Amazonia Alnus Hedyosmum Myrsine Podocarpus |
| description |
The effects of climate change on the lowland vegetation of Amazonia during the last glacial cycle are partially known for the middle and late Pleniglacial intervals (late MIS 3, 59–24 ka and MIS 2, 24–11 ka), but are still unclear for older stages of the last glacial and during the last interglacial. It is known that a more seasonal dry-wet climate caused marginal forest retraction and together with cooling rearranged forest composition to some extent. This is observed in pollen records across Amazonia depicting presence of taxa at glacial times in localities where they do not live presently. The understanding of taxa migration is hindered by the lack of continuous interglacial-glacial lowland records. We present new data from a known locality in NW Amazonia (Six Lakes Hill), showing a vegetation record that probably started during MIS 5 (130–71 ka) and lasted until the onset of the Holocene. The vegetation record unravels a novel pattern in tree taxa migration: (1) from the beginning of this cycle Podocarpus and Myrsine are recorded and (2) only later do Hedyosmum and Alnus appear. The latter group is largely restricted to montane biomes or more distant locations outside Amazonia, whereas the first is found in lowlands close to the study site on sandy soils. These findings imply that Podocarpus and Myrsine responded to environmental changes equally and this reflects their concomitant niche use in NW Amazonia. Temperature drop is not discarded as a trigger of internal forest composition change, but its effects are clearer later in the Pleniglacial rather than the Early Glacial. Therefore early climatic/environmental changes had a first order effect on vegetation that invoke alternative explanations. We claim last glacial climate-induced modifications on forest composition favoured the expansion of geomorphologic-soil related processes that initiated forest rearrangement. © 2017 Elsevier Ltd |
| format |
Artigo |
| author |
D'Apolito, Carlos |
| author2 |
Absy, Maria Lúcia Latrubesse, Edgardo Manuel |
| author2Str |
Absy, Maria Lúcia Latrubesse, Edgardo Manuel |
| title |
The movement of pre-adapted cool taxa in north-central Amazonia during the last glacial |
| title_short |
The movement of pre-adapted cool taxa in north-central Amazonia during the last glacial |
| title_full |
The movement of pre-adapted cool taxa in north-central Amazonia during the last glacial |
| title_fullStr |
The movement of pre-adapted cool taxa in north-central Amazonia during the last glacial |
| title_full_unstemmed |
The movement of pre-adapted cool taxa in north-central Amazonia during the last glacial |
| title_sort |
movement of pre-adapted cool taxa in north-central amazonia during the last glacial |
| publisher |
Quaternary Science Reviews |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/17077 |
| _version_ |
1787145424038002688 |
| score |
11.755432 |