Results 21 to 30 of about 129,063 (307)
Influence of drainage status on soil and water chemistry, litter decomposition and soil respiration in central Amazonian forests on sandy soils [PDF]
, 2011 Central Amazonian rainforest landscape supports a mosaic of tall terra firme rainforest and ecotone campinarana, riparian and campina forests, reflecting topography-induced variations in soil, nutrient and drainage conditions.
Berton Zanchi, F. +4 more
core +2 more sources
Environmental Costs of Government-Sponsored Agrarian Settlements in Brazilian Amazonia [PDF]
, 2015 Brazil has presided over the most comprehensive agrarian reform frontier colonization program on Earth, in which ~1.2 million settlers have been translocated by successive governments since the 1970's, mostly into forested hinterlands of Brazilian ...
A Brandão Jr +54 more
core +8 more sources
Evolutionary ecology of opsin gene sequence, expression and repertoire. [PDF]
, 2017 Linking molecular evolution to biological function is a long-standing challenge in evolutionary biology. Some of the best examples of this involve opsins, the genes that encode the molecular basis of light reception.
Owens, Gregory L, Rennison, Diana J
core +1 more source
Optional or Syntactic Ergativity in Shawi: Distribution and Possible Origins
Linguistic Discovery, 2017 In this article we provide a preliminary description and analysis of the most common ergative constructions in Shawi, a Kawapanan language spoken in Northwestern Amazonia.
Luis Miguel Rojas-Berscia +1 more
doaj +1 more source
Antibiotics, 2023 Many antimicrobial compounds have been seeking to protect the human body against pathogenic microbial infections. In recent times, there has been considerable growth of pathogens resistant to existing drugs due to the inappropriate use of antibiotics. In
Iago Castro da Silva +4 more
doaj +1 more source
Molecules, 2022 The chemical mechanism of the acid cleavage of proanthocyanidins (PAs) has been known for decades but has yet to be optimized. Therefore, we optimized this process in Byrsonima crassifolia, Euterpe oleracea and Inga edulis extracts using the response ...
Jesus N. S. Souza +5 more
doaj +1 more source
Amazonian-aged fluvial system and associated ice-related features in Terra Cimmeria, Mars [PDF]
, 2016 The Martian climate throughout the Amazonian is widely believed to have been cold and hyper-arid, very similar to the current conditions. However, ubiquitous evidence of aqueous and glacial activity has been recently reported, including channels that can
Adeli, Solmaz +6 more
core +3 more sources
Representation of the phosphorus cycle in the Joint UK Land Environment Simulator (vn5.5_JULES-CNP) [PDF]
Geoscientific Model Development, 2022 Most land surface models (LSMs), i.e. the land components of Earth system models (ESMs), include representation of nitrogen (N) limitation on ecosystem productivity. However, only a few of these models have incorporated phosphorus (P) cycling.
M. A. Nakhavali +21 more
doaj +1 more source
Increasing dominance of large lianas in Amazonian forests [PDF]
, 2002 Ecological orthodoxy suggests that old-growth forests should be close to dynamic equilibrium, but this view has been challenged by recent findings that neotropical forests are accumulating carbon and biomass, possibly in response to the increasing ...
A White +43 more
core +1 more source
Revista Brasileira de Ciências Ambientais, 2023 The present study analyzes the temporal variability of carbon monoxide (CO) over the Manaus Metropolitan Region (MMR) and its relations with nearby fires based on data obtained by the environmental satellite AQUA, for the 2003–2020 period.
Renato Trevisan Signori +4 more
doaj +1 more source