Processos Evolutivos na Amazônia e na Mata Atlântica
Journal Title: Fronteiras: Journal of Social, Technological and Environmental Science - Year 2014, Vol 3, Issue 2
Abstract
The Amazon and the Atlantic Forest biomes are amongst ecosystems with high levels of biodiversity in the world, and are separated by a broad diagonal of more xeric habitats comprising the Chaco, the Cerrado uplands, and the Caatinga. In the last decade, studies on biogeography and evolution of the Atlantic Forest have showed that that Pleistocene glacial cycles played an important role on the diversification of its biota. Furthermore, tectonic activities in the late Tertiary and the Quaternary may have contributed for the diversification of some lineages. Nevertheless, in the Amazon, establishment of current drainage of Amazon River basin could be responsible for the diversification of the organisms from this biome. Moreover, the uplift of the Andes was pointed as a driver for diversification in Amazonian forests. Notwithstanding, both in the Atlantic Forest and the Amazon, the origin of biodiversity seems to have been the product of a complex history, and assume that this diversification was originated by one or a few evolutionary processes is too simplistic. Thus, what seems to have happen in these forests was an ongoing process of diversification over time, and extremely complex with many interacting forces.
Authors and Affiliations
Henrique Batalha-Filho| Instituto de Biologia, Universidade Federal da Bahia, Salvador, BA, Cristina Yumi Miyaki| Instituto de Biociências, Universidade de São Paulo, São Paulo, SP
Keywords
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- EP ID EP15391
- DOI 10.21664/2238-8869.2014v3i2.p34-44
- Views 357
- Downloads 16
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