“…The sample included 607 students from the region of Loreto (Peruvian Amazonia) who completed self-report questionnaires. …”
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“…Substantial doubt exists, however, about the existence and determinants of large-area floristic divisions in Amazonia. Here we ask whether Amazonian forests are partitioned into broad-scale floristic units on the basis of geological formations and their edaphic properties. …”
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“…Typical EN-like drought conditions were observed only in eastern Amazonia, whilst in western Amazonia there was an unusual wetting. …”
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“…RESULTS: The sink of carbon into mature forests has been remarkably geographically ubiquitous across Amazonia, being substantial and persistent in each of the five biogeographic regions within Amazonia. …”
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“…Amazonia has as least two major centers of ancient human social complexity, but the full geographic extents of these centers remain uncertain. …”
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“…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 matrix. …”
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“…The discovery of large geometrical earthworks in interfluvial settings of southern Amazonia has challenged the idea that Pre-Columbian populations were concentrated along the major floodplains. …”
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“…However, beyond some large interconnected settlements in southern Amazonia(7–9), there has been no such evidence for pre-Hispanic Amazonia. …”
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“…Deforestation/land-use changes are major drivers of regional climate change in central South America, impacting upon Amazonia and Gran Chaco ecoregions. Most experimental and modeling studies have focused on the resulting perturbations within Amazonia. …”
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“…Nonetheless, they hybridize readily throughout Amazonia and the proportions of admixture correlate with fruit size variation of cultivated trees. …”
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“…As a result, species present within the network of Protected Areas (PAs) of Amazonia may be threatened throughout the 21st century. …”
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“…This paper uses a palaeoecological approach to examine the impact of drier climatic conditions of the Early–Mid-Holocene (ca 8000–4000 years ago) upon Amazonia's forests and their fire regimes. Palaeovegetation (pollen data) and palaeofire (charcoal) records are synthesized from 20 sites within the present tropical forest biome, and the underlying causes of any emergent patterns or changes are explored by reference to independent palaeoclimate data and present-day patterns of precipitation, forest cover and fire activity across Amazonia. …”
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“…We inferred 14 dispersals into and 18 out of Amazonia to adjacent regions; the Andes were the major source of dispersals into Amazonia. …”
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“…Nevertheless, knowledge of amphibian diversity needed for effective habitat protection is still highly inadequate in remote tropical regions, the greater part of the Amazonia. In this study we integrated molecular, morphological and bioacoustic evidence to evaluate the species richness of the treefrogs genus Scinax over a 1000 km transect across rainforest of the Purus-Madeira interfluve, and along the east bank of the upper Madeira river, Brazilian Amazonia. …”
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“…Both the D(A )and F(ST )distance-based trees illustrated the main division to be between Central America and Amazonia. CONCLUSION: We detected a large amount of population structure in Amazonia, with three population clusters within Brazil and one including the Peru populations. …”
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“…Amazonia is the most biodiverse rainforest on Earth, and the debate over how many tree species grow there remains contentious. …”
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“…Therefore, our results indicate that leaf litter quality drives the preference of consumption by Phylloicus larvae in Cerrado and Amazonia streams.…”
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