Results 61 to 70 of about 180,116 (343)

Convergent adaptations: bitter manioc cultivation systems in fertile anthropogenic dark earths and floodplain soils in central Amazonia [PDF]

open access: yes, 2012
Shifting cultivation in the humid tropics is incredibly diverse, yet research tends to focus on one type: long-fallow shifting cultivation. While it is a typical adaptation to the highly-weathered nutrient-poor soils of the Amazonian terra firme, fertile
Alessandro Alves-Pereira   +5 more
core   +13 more sources

Are we using the most appropriate methodologies to assess the sensitivity of rainforest biodiversity to habitat disturbance? [PDF]

open access: yes, 2018
Accurately assessing how biodiversity responds in the Anthropocene is vital. To do so, a number of indicator taxa are commonly used to monitor human-impacted forests and the subsequent recovery of their biodiversity.
Braunholtz, L.   +3 more
core   +1 more source

New species of Charadrella (Diptera: Muscidae) from the Brazilian Amazon Rainforest

open access: yesZoologia (Curitiba)
Charadrella is a small genus of Neotropical Muscidae, with larvae feeding on live or dying snails. There are five known species, i.e., C. albuquerquei de Carvalho, 1985 (Brazil), C. boliviana Haseyama & de Carvalho, 2012 (Bolivia), M.
Claudio José Barros de Carvalho   +1 more
doaj   +1 more source

Frequent rainfall-induced new particle formation within the canopy in the Amazon rainforest

open access: yesNature Geoscience
Atmospheric aerosol particles are essential for forming clouds and precipitation, thereby influencing Earth’s energy budget, water cycle and climate on regional and global scales. However, the origin of aerosol particles over the Amazon rainforest during
Luiz A. T. Machado   +28 more
semanticscholar   +1 more source

Impact of an AMOC weakening on the stability of the southern Amazon rainforest

open access: yesThe European Physical Journal Special Topics, 2021
The Atlantic Meridional Overturning Circulation (AMOC) and the Amazon rainforest are potential tipping elements of the Earth system, i.e., they may respond with abrupt and potentially irreversible state transitions to a gradual change in forcing once a ...
Catrin Ciemer   +3 more
semanticscholar   +1 more source

Remote Monitoring Systems for Conservation of the Amazon Rainforest: A Systematic Review

open access: yesMundo Amazónico
The Amazon rainforest plays a crucial role in stabilizing the global climate and is vital for preserving biodiversity, wildlife, and indigenous cultures.
Jorge Andrés Torres Cepeda   +7 more
doaj   +1 more source

Amazonian Cyanobacteria as a Source of Bioactive Compounds With Antimicrobial and Cytotoxic Properties

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT Cyanobacteria are photosynthetic microorganisms known for producing diverse bioactive compounds. This study explores the bioactivity of extracts and fractions from Amazonian cyanobacteria and their pigment and phenolic compound production. A fraction from Synechococcus sp. CACIAM 05 showed cytotoxicity against hCMEC/D3 and MG‐63 cells.
Samuel Cavalcante do Amaral   +8 more
wiley   +1 more source

Fungal spores as a source of sodium salt particles in the Amazon basin

open access: yesNature Communications, 2018
Salt particles in the Amazon basin are typically attributed to marine aerosols transported from the Atlantic Ocean. Here the authors show the potential importance of fungal spores as a source of sodium-salt particles in the Amazon rainforest.
Swarup China   +13 more
doaj   +1 more source

Quantifying Fire-Induced Surface Climate Changes in the Savanna and Rainforest Biomes of Brazil

open access: yesFire, 2023
This study uses a combined research approach based on remote-sensing and numerical modeling to quantify the effects of burned areas on the surface climate in the two Brazilian biomes most affected by fires: the tropical savanna and the Amazon rainforest.
Fernando De Sales   +2 more
doaj   +1 more source

Rethinking fuelwood: people, policy and the anatomy of a charcoal supply chain in a decentralizing Peru [PDF]

open access: yes, 2018
In Peru, as in many developing countries, charcoal is an important source of fuel. We examine the commercial charcoal commodity chain from its production in Ucayali, in the Peruvian Amazon, to its sale in the national market.
Bennett, Aoife   +3 more
core   +1 more source

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