Pollen and spores from surface samples in the campos region of Uruguay and their paleoecological implications
AUTOR(ES)
Mourelle, Dominique, Prieto, Aldo R.
FONTE
Acta Bot. Bras.
DATA DE PUBLICAÇÃO
04/07/2016
RESUMO
ABSTRACT In this study we describe and illustrate pollen and spores that have been identified as significant in modern and fossil samples from the campos region of Uruguay. We provide new information about modern pollen assemblages and their relationship to the vegetation types of this region. We discuss the taxonomic limitations of pollen and spores and their representation in both modern and fossil samples. We highlight the importance of identifying both silent and key indicator taxa for making accurate paleoecological interpretations. We also emphasize the importance of knowing the pollination strategies of parental plants because many of them are zoophilous, and so small changes in the proportions of their pollen grains in fossil assemblages could reflect important changes in vegetation. This study presents a practical approach to paleoecological research, which not only produces robust results in studies of the campos region, but can be applied to other grassland ecosystems, including those in temperate regions.
Documentos Relacionados
- The two most important lateritization cycles in the Amazon region and their paleoecological importance
- Miocene fern spores and pollen grains from the Solimões Basin, Amazon Region, Brazil
- Cell recognition in plants: Determinants of the stigma surface and their pollen interactions
- Note on the paleobiogeography of Compsognathidae (Dinosauria: Theropoda) and its paleoecological implications
- Spatial distribution of pollen grains and spores in surface sediments of Guanabara Bay, Rio de Janeiro, Brazil