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Species distribution models of rare tree species as an evaluation tool for synergistic human impacts in the Amazon rainforest. Repositório Alice
SILVA, T. R.; MEDEIROS, M. B.; NORONHA, S. E.; PINTO, J. R. R..
Tipo: Separatas Palavras-chave: Environmental licensing; Hydroelectric dams; MaxEnt; Madeira river basin; Deforestation.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1085500
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Forest structure of artificial islands in the Tucuruí dam reservoir in northern Brazil: a test core-area model Acta Amazonica
Ferreira,Leandro V.; Neckel-Oliveira,Selvino; Galatti,Ulisses; Fáveri,Sarita B.; Parolin,Pia.
Construction of hydroelectric dams in tropical regions has been contributing significantly to forest fragmentation. Alterations at edges of forest fragments impact plant communities that suffer increases in tree damage and dead, and decreases in seedling recruitment. This study aimed to test the core-area model in a fragmented landscape caused by construction of a hydroelectric power plant in the Brazilian Amazon. We studied variations in forest structure between the margin and interiors of 17 islands of 8-100 hectares in the Tucuruí dam reservoir, in two plots (30 and >100m from the margin) per island. Mean tree density, basal area, seedling density and forest cover did not significantly differ between marginal and interior island plots. Also, no...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Core-area model; Forest edges; Fragmentation; Hydroelectric dams.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672012000200006
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Impacts of hydroelectric dams on alluvial riparian plant communities in eastern Brazilian Amazonian Anais da ABC (AABC)
FERREIRA,LEANDRO VALLE; CUNHA,DENISE A.; CHAVES,PRISCILLA P.; MATOS,DARLEY C.L.; PAROLIN,PIA.
The major rivers of the Amazon River basin and their biota are threatened by the planned construction of large hydroelectric dams that are expected to have strong impacts on floodplain plant communities. The present study presents forest inventories from three floodplain sites colonized by alluvial riparian vegetation in the Tapajós, Xingu and Tocantins River basins in eastern Amazonian. Results indicate that tree species of the highly specialized alluvial riparian vegetation are clearly distinct among the three river basins, although they are not very distinct from each other and environmental constraints are very similar. With only 6 of 74 species occurring in all three inventories, most tree and shrub species are restricted to only one of the rivers,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon River basin; Biodiversity loss; Floodplain forest; Hydroelectric dams.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000301013
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