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Em 2024: 8 notícias
Desde 1995: 35 notícias
Birds that disperse more types of seed have better evolutionary chances
Publicado em 11 agosto 2021
More than 70% of plant species that produce flowers depend on birds to disperse their seeds. Birds feed on fruit from a wide array of different plants, and bird-plant interactions configure a welter of complex networks.
A study conducted at the University of São Paulo’s Institute of Biosciences (IB-USP) in Brazil shows that the evolutionary stability of each bird species depends on the position it occupies in these networks, increasing in step with the number and centrality of its [...]
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Researchers propose a method of magnetizing a material without applying an external magnetic field
Publicado em 29 julho 2021Magnetizing a material without applying an external magnetic field is proposed by researchers at São Paulo State University (UNESP), Brazil, in an article published in the journal Scientific Reports, where they detail the experimental approach used to achieve this goal. The study was part of the Ph.D. research pursued by Lucas Squillante under the supervision of Mariano de Souza, a professor at UNESP’s Department of Physics in Rio Claro. Contributions were also made by Isys Mello, [...]ver notícia -
Newborns To Three Months Should Be Stimulated To Hold And Reach For Objects, Study Says
Publicado em 12 julho 2021Newborn infants and babies aged up to three months should be stimulated to manipulate objects and observe adults performing everyday tasks. This incentive helps their social, motor and cognitive development, researchers note in an article published in the May 2021 issue of the journal Infant Behavior & Development. According to the authors, from the earliest age babies watch adults carrying out activities such as handling utensils and putting them away in drawers or closets. They should [...]ver notícia -
Marine Sediments Explain How Part Of Brazil’s Northeast Region Became Semi-Arid
Publicado em 23 junho 2021Rainfall associated with the Intertropical Convergence Zone (ITCZ), the belt of converging trade winds and rising air that encircles the Earth near the Equator, affects the food and water security of approximately 1 billion people worldwide. They include about 11% of the Brazilian population, concentrated in four states of the Northeast region—Rio Grande do Norte, Ceará, Piauí, and Maranhão. Large swaths of these states have a semi-arid climate, and about half of all [...]ver notícia -
Experiments simulate possible impact of climate change on crabs
Publicado em 14 junho 2021Albeit very small, with a carapace width of only 3 cm, the Atlantic mangrove fiddler crab Leptuca thayeri can be a great help to scientists seeking to understand more about the effects of global climate change. In a study published in the journal Estuarine, Coastal and Shelf Science, Brazilian researchers supported by São Paulo Research Foundation (FAPESP) show how the ocean warming and acidification forecast by the end of the century could affect the lifecycle of these [...]ver notícia