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South and southeast Brazilian grasslands during Late Quaternary times: a synthesis

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Behling, Hermann·2002·Palaeogeography, Palaeoclimatology, Palaeoecology

Abstract

Abstract Fourteen pollen records from the south (S) and the southeast (SE) Brazilian regions have been synthesised. Late Glacial records from S Brazilian highlands document the predominance of grassland (campos) where today Araucaria forests occur. Records from SE Brazil show that during pre- and full-glacial times modern tropical semideciduous forest and cerrado (savanna to dry forest) were mostly replaced by grassland and some subtropical gallery forest. Modern montane Araucaria forests and cloud forests in SE Brazil were mostly replaced by grassland during pre- and full-glacial times. There is evidence that the modern tropical Atlantic rainforest in S Brazil was significantly reduced and replaced by cold-adapted forest taxa or grassland during glacial, especially during full-glacial times. The synthesis indicates that grasslands dominated the S and SE Brazilian landscape during the Late Pleistocene where today different forest ecosystems exist. Grassland extended over 750 km from S to SE Brazil from latitudes of about 28°/27° S to at least 20° S. These results indicate that climates in the region were markedly drier and 5–7°C cooler during glacial times. Antarctic cold fronts must have been much stronger and more frequent than today. Studies from S Brazil show that huge areas of Late Pleistocene campos vegetation were still found on the S Brazilian highlands during early and mid Holocene times, reflecting dry climatic conditions with an annual dry period of probably 3 months. Modern wet climatic conditions with no or only short dry periods were not established until the Late Holocene period when Araucaria forests replaced large areas of grassland vegetation after about 3000 14C yr B.P. and especially after 1500/1000 14C yr B.P.

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Metadata

Authors
Behling, H.
Venue
Palaeogeography, Palaeoclimatology, Palaeoecology
Publisher
Elsevier BV
Published
2002-01
Volume
177
Issue
1-2
Pages
19-27
ISSN
0031-0182 (ISSN-L)
OpenAlex
W2094032424
Cited by
664
References
14
FWCI
4.69
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: South and southeast Brazilian grasslands during Late Quaternary times: a synthesis. https://app.cochat.ai/papers/10.1016/s0031-0182(01)00349-2
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Behling, H. (2002). South and southeast Brazilian grasslands during Late Quaternary times: a synthesis. Palaeogeography, Palaeoclimatology, Palaeoecology. https://doi.org/10.1016/s0031-0182(01)00349-2

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