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Microorganisms Discovered on the Rio Grande Rise Are a Basis for Life and a Possible Origin of Metals
Publicado em 26 de maio de 2021
Researchers conducted the first large-scale survey of the microbiota present in the seamount’s ferromanganese crusts, describing bacteria and archaea involved in the nutrient cycle and formation of metals.
The abundant biological and mineral diversity of the Rio Grande Rise, a seamount in the depths of the Atlantic Ocean about 1,500 km from the coast of Brazil, is probably due to a great extent to little-known microscopic creatures.
Researchers affiliated with the University of [...]
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Researchers identify the causes of the extreme drought that affected the Pantanal
Publicado em 25 maio 2021The extreme drought suffered by the Pantanal in 2019-20, considered the worst in the last 50 years, was caused by natural climate conditions similar to those underlying the 2014-16 water crisis in São Paulo state. The Pantanal is one of the world’s largest wetlands. The Brazilian portion is located in the Center-West region, mainly Mato Grosso do Sul state. The 2019-20 extreme drought was studied by researchers affiliated with the Natural Disaster Surveillance and Early Warning [...]ver notícia -
Soybean and linseed oils added to cows’ diet improves the quality of milk
Publicado em 07 maio 2021Inclusion of soybean and linseed oils in the diet of dairy cows made the fatty acid content of their milk even healthier for human nutrition. It also increased the proportions of omega-6 and omega-3, which in the right balance play a key role in preventing cardiovascular diseases, for example, as well as chronic inflammation and some kinds of cancer. Cardiovascular diseases are one of the world’s main public health problems. In Brazil, they are among the foremost causes of death. Each [...]ver notícia -
Airborne laser scanning of gaps in Amazon rainforest helps explain tree mortality
Publicado em 14 abril 2021A group of researchers led by Brazilians has used an innovative model to map gaps in the Amazon rainforest and identify factors that contribute to tree mortality. Water stress, soil fertility, and anthropic forest degradation have the most influence on gap dynamics in the world’s largest and most biodiverse tropical rainforest, according to an article on the study published in Scientific Reports. Forest gaps are most frequent in the areas with the highest levels of soil fertility, [...]ver notícia