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Agricultural classification of crops produced by organic farms in São Paulo state using the Participatory Guarantee System (PGS), 2020 . Credit: Organic Agriculture   In Brazil, a study compared two systems of organic product certification implemented in São Paulo state. One system involves conventional certification by auditors accredited by the Ministry of Agriculture and the National Institute of Metrology, Quality and Technology (INMETRO). The other is peer-to-peer [...]

A group of scientists has revealed the mechanism whereby Salvator merianae—the black and white tegu, also called the Argentine giant tegu—is able to keep warm by raising its own body temperature during the reproductive season even while it is in a dark burrow. This had never been observed before in reptiles. Source: phys.org Read Entire Article  Source

 In an article published in the journal Proceedings of the National Academy of Sciences, researchers at the University of São Paulo's Luiz de Queiroz College of Agriculture (ESALQ-USP) in Brazil describe for the first time how strigolactones, plant hormones discovered several decades ago, control flowering and fruiting in the tomato (Solanum lycopersicum). The findings of their study point to a new opportunity for management of fruiting time and could have a significant impact [...]

Researchers at the Federal University of São Paulo (UNIFESP) and the University of São Paulo (USP) have determined, for the first time with precision, the vertical limits of the marine environments in the Southwest Atlantic, the region comprising the offshore and coastal zones of the Atlantic side of South America. Source: phys.org Read Entire Article  Source

The most advanced molecular techniques contribute significantly to the identification of endangered sharks, rays and skates, collectively known as elasmobranchs, and are therefore fundamental to the enforcement of the laws and regulations governing trade in fins and meat from these animals. Source: phys.org Read Entire Article  Source

 A study conducted by Brazilian researchers affiliated with São Paulo State University (UNESP), the Federal University of São Carlos (UFSCar) and the Federal University of Viçosa (UFV) has shown how three pesticides widely used by farmers in Brazil—imidacloprid, pyraclostrobin and glyphosate—affect native stingless bees of the species Melipona scutellaris. Whether they are used singly or combined, the pesticides impaired the bees' ability to move about [...]

An article published in the journal Insects determines with precision the dispersal range of a type of wasp that neutralizes the brown stink bug, Euschistus heros, a major soybean pest in Brazil and one that is highly resistant to chemical insecticides. The solution discussed by the authors is Telenomus podisi, a parasitoid microwasp first described by American entomologist William Harris Ashmead in 1893. Source: phys.org Read Entire Article  Source

A study conducted by researchers at the University of São Paulo (USP) in Brazil and reported in an article published in Nature Communications shows that the Cerrado, Brazil's savanna biome, is experiencing the worst drought for at least 700 years. Here's why. Source: phys.org Read Entire Article  Source

Bacteria of the phyla Firmicutes and Proteobacteria, including those of the genus Streptococcus, are the most common microorganisms found in the saliva of swine, which contains a different microbiota from swine feces and the environment in which the animals live. Source: phys.org