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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

POLLEN RECORD OF A TROPICAL PEATLAND (PAU DE FRUTA) FROM THE SERRA DO ESPINHACO MERIDIONAL, DIAMANTINA, STATE OF MINAS GERAIS - ANGIOSPERMS EUDICOTYLEDONS

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Autor(es):
Pinto da Luz, Cynthia Fernandes ; Horak-Terra, Ingrid ; Silva, Alexandre Christofaro ; Mendonca Filho, Carlos Victor ; Vidal-Torrado, Pablo
Número total de Autores: 5
Tipo de documento: Artigo Científico
Fonte: Revista Brasileira de Paleontologia; v. 20, n. 1, p. 3-22, JAN-APR 2017.
Citações Web of Science: 0
Resumo

This study presents the qualitative pollen analysis of a record of Pau de Fruta peatland, from the Serra do Espinhaco Meridional, Diamantina, State of Minas Gerais, Brazil, in order to investigate past changes in vegetation and climate as well as to provide reference material for the palaeoenvironmental reconstruction inserted in the Cerrado biome, currently found in the studied region. The analysis involved 21 stratigraphic levels from a core sample of 428 cm in lenght, corresponding to the last 10,596 +/- 102 years cal BP. The chemical preparation consisted of application of HCl, HF, acetolysis, ultrasound, and mounting the slides in glycerin gelatin. The analyses were carried out under an optical microscope. A total of 128 pollen types, related to 57 families of eudicotyledonous angiosperms were identified and illustrated. These pollen types were related to forest phytophysionomies, represented by the semideciduous forest and mountain forest, and the Cerrado (broad sense) phytophysionomies, including savanna formations ({''}Cerrado Tipico{''}, ``Cerrado Ralo{''} and ``Cerrado Rupestre{''}), forest areas ({''}Cerradao{''}) and grassland formations ({''}Campo Limpo Seco{''}, ``Campo Limpo Umido{''} and ``Campo Rupestre{''}). Ecological information on organisms of origin, as selectivity to light and humidity, were described to provide inferences of environments of occurrence. Wet and cold conditions (similar to 10,000-7360 cal BP), followed by wet and warm (similar to 7360-4200 years cal BP), dry and warm (similar to 4200-2200 years cal BP), dry and punctuated cooling (similar to 2200-1160 cal BP) until current sub-humid climatic conditions (similar to 1160-400 years cal BP and < similar to 400 years cal BP) are suggested by the succession of vegetation. (AU)

Processo FAPESP: 08/56682-4 - Reconstrução paleoambiental da turfeira APA pau-de-fruta, Serra do Espinhaço Meridional - mg
Beneficiário:Ingrid Horák Terra
Linha de fomento: Bolsas no Brasil - Mestrado
Processo FAPESP: 10/51637-0 - Reconstrução paleoambiental da Serra do Espinhaço Meridional durante o quartenário baseado nos registros polínicos, geoquímicos e isotópicos em organossolos
Beneficiário:Ingrid Horák Terra
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 12/00676-1 - Evidências geoquímicas das mudanças ambientais durante o quaternário na Serra do Espinhaço meridional, Minas Gerais
Beneficiário:Ingrid Horák Terra
Linha de fomento: Bolsas no Exterior - Estágio de Pesquisa - Doutorado