In Peru, a lowlands-to-peak study has revealed how climate change is affecting forests-and helped nurture young scientists.
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The GrassSyn dataset: Soil organic carbon stocks in Brazilian grassy ecosystems.
J Environ Qual
December 2024
Departamento de Solos, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
Article Synopsis
- Ecosystem management and restoration can boost carbon storage, but knowledge gaps about soil organic carbon (SOC) in specific ecosystems challenge effective climate policies.
- The paper analyzes SOC stock variability in Brazil's main grassy ecosystems and compiles a comprehensive dataset from 182 studies, including soil properties and carbon stocks across various locations.
- Findings reveal that subtropical grasslands have the highest SOC stocks, while other ecosystems like the Cerrado and Amazon are notable for their subsurface carbon levels, with implications for Brazil's greenhouse gas inventory.
Long-term strict ant-plant mutualism identity characterises growth rate and leaf shearing resistance of an Amazonian myrmecophyte.
Sci Rep
August 2024
Grupo de Investigación en Ecología Evolutiva en los Trópicos-EETROP, Universidad de Las Américas, Quito, Ecuador.
Over 125 million years of ant-plant interactions have culminated in one of the most intriguing evolutionary outcomes in life history. The myrmecophyte Duroia hirsuta (Rubiaceae) is known for its mutualistic association with the ant Myrmelachista schumanni and several other species, mainly Azteca, in the north-western Amazon. While both ants provide indirect defences to plants, only M.
View Article and Find Full Text PDFConsumption of Ultra-Processed Foods in the Brazilian Amazon during COVID-19.
Nutrients
July 2024
Laboratory of Studies Design and Scientific Writing, Postgraduate Division, University Center FMABC, Santo André 09060-650, SP, Brazil.
Background: A COVID-19 pandemic erupted, causing a global viral pneumonia outbreak, marking the most significant public health crisis of the 21st century. These changes profoundly impacted population health and well-being, leading to shifts in dietary habits. This study aimed to evaluate the consumption of ultra-processed foods in the Brazilian Amazon before, during, and after the COVID-19 pandemic.
View Article and Find Full Text PDFOccurrence of a "forever chemical" in the atmosphere above pristine Amazon Forest.
Sci Total Environ
September 2024
Environmental Engineering Department, Federal University of Parana (UFPR), Curitiba, PR, Brazil.
Per- and polyfluoroalkyl substances (PFAS), often referred to as "forever chemicals", are a class of man-made, extremely stable chemicals, which are widely used in industrial and commercial applications. Exposure to some PFAS is now known to be detrimental to human health. By virtue of PFAS long residence times, they are widely detected in the environment, including remote locations such as the Arctics, where the origin of the PFAS is poorly understood.
View Article and Find Full Text PDFAtmospheric black carbon observations and its valley-mountain dynamics: Eastern cordillera of the central Andes of Peru.
Environ Pollut
August 2024
Instituto Geofisico del Peru (IGP), Mayorazgo-Ate, Lima, Peru.
Glacial bodies in the Peruvian Andes Mountains store and supply freshwater to hundreds of thousands of people in central Peru. Atmospheric black carbon (BC) is known to accelerate melting of snow and ice, in addition to contributing to air pollution and the health of people. Currently there is limited understanding on the sources and temporal variability of BC in valley and mountain environments in Peru.
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