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Predicting modeling scenarios of climate change impact on the CO2 emissions from an Amazonian hydroelectric reservoir
(2020-01-01)
We simulated the carbon dioxide (CO2) emissions from a great Amazonian hydroelectric reservoir under future climate and land use land cover conditions using a three-dimensional ecological model. Future scenarios were ...
The influence of riverine barriers, climate, and topography on the biogeographic regionalization of Amazonian anurans
(2018-12-01)
We evaluated five non-mutually exclusive hypotheses driving the biogeographic regions of anuran species in the Amazonia. We overlaid extent-of-occurrence maps for anurans 50 × 50 km cells to generate a presence-Absence ...
Reproductive performance of Santa Inês ewes during dry and rainy seasons in eastern Amazon
(2014-01-01)
The aim of this study was to evaluate the reproductive performance of ewes during the dry and wet months in northern Brazil. The females were divided into two groups: reproduced during the dry season and lambing in the ...
Reproductive performance of Santa Ines ewes during dry and rainy seasons in eastern Amazon
(Brazilian Coll Animal Reproduction, 2014-01-01)
The aim of this study was to evaluate the reproductive performance of ewes during the dry and wet months in northern Brazil. The females were divided into two groups: reproduced during the dry season and lambing in the ...
Characterization and distribution of mineral phases in an Amazonian humiluvic Spodosol profile by XRPD, HR-TEM, SAED and SEM–EDX
(2021-06-01)
The Amazonian biome has a fundamental role in the global climate change scenario and the understanding the physicochemical aspect in Amazonian soils is of great importance. The nine horizons constituting a typical Amazonian ...
Can the Deforestation Breeze Change the Rainfall in Amazonia? A Case Study for the BR-163 Highway Region
(AMER METEOROLOGICAL SOC, 2010)
The authors simulated the effects of Amazonian mesoscale deforestation in the boundary layer and in rainfall with the Brazilian Regional Atmospheric Modeling System (BRAMS) model. They found that both the area and shape ...
Responses of Senna reticulata, a legume tree from the Amazonian floodplains, to elevated atmospheric CO2 concentration and waterlogging
(Heidelberg, 2014-04-12)
Tree species from the Amazonian floodplains have to cope with low oxygen availability due to annual pulses of inundation that can last up to 7 months. Species capable of adapting to flooding and/or waterlogged conditions ...
Reinforcing and expanding the predictions of the disturbance vicariance hypothesis in Amazonian harlequin frogs: A molecular phylogenetic and climate envelope modelling approach
(2010-07-01)
The disturbance vicariance hypothesis (DV) has been proposed to explain speciation in Amazonia, especially its edge regions, e. g. in eastern Guiana Shield harlequin frogs (Atelopus) which are suggested to have derived ...
Seasonal Amazonian rainfall variation in the Miocene Climate Optimum
(ElsevierNL, 2005-05)
Modern and fossil freshwater bivalves from north-eastern Peru are investigated to reconstruct seasonal rainfall patterns in Miocene Amazonia. Oxygen isotope variation in incremental growth bands of fossil bivalves reflects ...
Tracking the impacts of El Niño drought and fire in human-modified Amazonian forests
(2021-07-27)
With humanity facing an unprecedented climate crisis, the conservation of tropical forests has never been so important – their vast terrestrial carbon stocks can be turned into emissions by climatic and human disturbances. ...