Universidade Federal de Minas Gerais

About: Universidade Federal de Minas Gerais is a education organization based out in Belo Horizonte, Minas Gerais, Brazil. It is known for research contribution in the topics: Population & Immune system. The organization has 41631 authors who have published 75688 publications receiving 1249905 citations.

Conservation planning and the IUCN Red List

Abstract: Systematic conservation planning aims to identify comprehensive protected area networks that together will minimize biodiversity loss. Importantly, conservation planners seek to determine where to allocate limited resources first, particularly given the uneven spread of, and threats to, biodiversity. The International Union for the Conservation of Nature (IUCN) Red List of Threatened Species incorporates data not only on threats to species, but also on species distributions and ecological requirements. These temporal and spatial attributes, when combined with other datasets, have proven useful for determining the most urgent priority areas for conserving biodiversity, from the global level down to the scale of individual sites. Although many challenges remain, the increasing reliability and comprehensiveness of the IUCN Red List suggests that its role as a source of biodiversity data in systematic conservation planning is certain to expand dramatically.

Das redes sociais à inovação

Abstract: A insercao em rede e determinante para o compartilhamento da informacao e do conhecimento. Isto porque as redes sao espacos valorizados para o compartilhamento da informacao e para a construcao do conhecimento. Neste artigo, sao abordadas as relacoes entre informacao, conhecimento, aprendizagem organizacional e inovacao, assim como o entorno em que as redes sociais se realizam. Essas relacoes constituem o foco das ligacoes que se estabelecem nas redes. A interacao entre os atores promove o compartilhamento da informacao e do conhecimento, fomentando o desenvolvimento de inovacoes.

Biodiversity of galling insects: historical, community and habitat effects in four neotropical savannas

Abstract: Five hypotheses were tested to explain the pattern of galling insect species richness in four neotropical savanna physiognomies, 'canga ', 'campo sujo', 'cerrado' s. st., and 'cerradao', that occur in Minas Gerais, southeastern Brazil. We found 125 species of galling insects on 80 host plant species. The increase of plant species richness explained 35% of the variation in galling insect richness, corroborating the plant species richness hypothesis. Most of the galling species occurred on trees, followed by shrubs, and herbs. However, the difference in mean number of galls was only statistically significant between herbs and trees, corroborating partially the plant structural complexity hypothesis. A significant relationship was observed between galling species richness and density of herbs, and shrubs, corroborating partially the resource concentration hypothesis. Galling insect richness showed a negative correlation with magnesium, potassium, and zinc on soil, corroborating the soil fertility hypothesis. The content of magnesium, potassium, iron and CTC (T) explained 72% of the variation in galling insect richness. Plant family size positively influenced galling insect richness, corroborating the plant family size hypothesis. Overall, the results corroborate the hypothesis that predicts that habitat stress is the main factor generating the patterns of galling insect richness in Brazilian savannas.

Angiotensin-(1-7) and the renin-angiotensin system.

Abstract: Purpose of reviewIn this review we will focus on the recent findings related to angiotensin-(1–7) as an angiotensin II counter-regulatory peptide within the renin–angiotensin system.Recent findingsThe identification of the angiotensin-converting enzyme homologue ACE2 as an angiotensin peptide proces