2018
DOI: 10.1590/0001-3765201820170161
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New Holocene pollen records from the Brazilian Caatinga

Abstract: We present two pollen diagrams from the semi-arid Caatinga of the Catimbau National Park, in Pernambuco and from a Mauritia palm forest in the Caatinga/Cerrado ecotone of southern Piauí, NE Brazil, spanning the last 10,000 cal. yrs BP and the last 1,750 cal yrs BP, respectively. These two records contain a signature of the local vegetation and permit the correlation of the pollen signal with regional climatic changes. The Catimbau record shows Zizyphus sp., a typical Caatinga taxon, in all three pollen zones i… Show more

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Cited by 17 publications
(10 citation statements)
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“…Another possibility is that the arboreal Caatinga is reminiscent of seasonal forests that covered a larger area in the Brazilian semiarid region during the Pleistocene, and wetter phases in the Holocene (Behling et al 2000, Werneck et al 2011, Arruda et al 2018, Bouimetarhan et al 2018, Medeiros et al 2018. Nowadays, they are the result of the combination of vestigial Dry Forest with species of the Caatinga, which have advanced with the dryness increase in the region (Silva and Souza 2018), which justifies its greater distribution in the border region of the Caatinga biome, in contact with Dry Forests.…”
Section: Discussionmentioning
confidence: 99%
“…Another possibility is that the arboreal Caatinga is reminiscent of seasonal forests that covered a larger area in the Brazilian semiarid region during the Pleistocene, and wetter phases in the Holocene (Behling et al 2000, Werneck et al 2011, Arruda et al 2018, Bouimetarhan et al 2018, Medeiros et al 2018. Nowadays, they are the result of the combination of vestigial Dry Forest with species of the Caatinga, which have advanced with the dryness increase in the region (Silva and Souza 2018), which justifies its greater distribution in the border region of the Caatinga biome, in contact with Dry Forests.…”
Section: Discussionmentioning
confidence: 99%
“…For example, pollen records of the genus Ziziphus indicate that in the period from 10,000 to 6,000 years before present (BP), there were taxa adapted to high humidity conditions. However, drier conditions are assumed to have occurred between 6,400 and 1,800 BP based on the lack of sediment deposits in this timeframe (Medeiros et al 2018). Similarly, the vegetation history of the Caatinga based on peat-bog sediments deposited over > 10,000 years showed that during 10,540-6790 BP, there was a warmer and wetter period evidenced by the prevalence of Mauritia pollen, with the establishment of current climatic conditions and vegetation patterns after 4535 BP (Oliveira et al 1999).…”
Section: Paleoclimate Scenario Modelsmentioning
confidence: 99%
“…Reconstruções através de pólen, carvão e sedimentos terrestres (DE OLIVEIRA, BARRETO E SUGUIO, 1999;SANTOS, JC 2007;PESSENDA et al, 2010;MEDEIROS et al, 2018;DE MORAES, OLIVEIRA E BEHLING 2020), espeleotemas (AULER E SMART, 2001;WANG et al, 2004;CRUZ et al, 2009;NOVELLO et al, 2012;STRIKIS et al, 2015STRIKIS et al, , 2018UTIDA et al, 2020) e sedimentos marinhos (BEHLING et al, 2000;MARTINS et al, 2020;VENANCIO et al, 2020) indicam períodos úmidos na transição entre o Último Máximo Glacial (LGM) e o Holoceno.…”
Section: Atmospheric-ocean Global Circulation Model) E Modelos Do Sistema Terrestre (Esm -Earthunclassified