Buscar
Mostrando ítems 1-10 de 27
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 ...
Reproductive performance of Santa Ines ewes during dry and rainy seasons in eastern Amazon
(Brazilian Coll Animal Reproduction, 2014)
Behavioural and seminal characteristics of Santa Ines rams subjected to successive semen collections in the Amazonian region
(Pagepress Publ, 2012-01-01)
The objective of this study was to evaluate the reproductive performance of Santa Ines rams subjected to successive semen collections in an Amazonian climate. Four rams were subjected to successive ejaculations during a ...
Intercomparison of integrated water vapor estimates from multisensors in the amazonian region
(Amer Meteorological Soc, 2007-11-01)
Water vapor is an atmospheric component of major interest in atmospheric science because it affects the energy budget and plays a key role in several atmospheric processes. The Amazonian region is one of the most humid on ...
Impacts of Climate Change and the End of Deforestation on Land Use in the Brazilian Legal Amazon
(Amer Geophysical Union, 2011-05-01)
Climate change scenarios vary considerably over the Amazon region, with an extreme scenario projecting a dangerous (from the human perspective) increase of 3.8 degrees C in temperature and 30% reduction in precipitation ...
Solar energy budgets in central Amazonian ecosystems: a comparison between natural forest and bare soil areas
(1993-07-01)
In order to estimate the deforestation consequences on the actual solar energy budget of the Central Amazon Region, two ecosystems of different characteristics were compared. The present conditions of the region were ...
Paleodistributions and Comparative Molecular Phylogeography of Leafcutter Ants (Atta spp.) Provide New Insight into the Origins of Amazonian Diversity
(Public Library Science, 2008-07-23)
The evolutionary basis for high species diversity in tropical regions of the world remains unresolved. Much research has focused on the biogeography of speciation in the Amazon Basin, which harbors the greatest diversity ...
Modelling climate change responses in tropical forests: similar productivity estimates across five models, but different mechanisms and responses
(Geoscientific Model Development, 2018)