16 de julio de 2019

PLANTAS COM RISCO DE EXTINÇÃO DEPOSITADAS NO HERBÁRIO DA AMAZÔNIA MERIDIONAL, ALTA FLORESTA, MATO GROSSO, BRASIL

Brazil is considered to be a country of mega-diversity, about 200 million people and is the seventh in the world economy, is facing major challenges in biodiversity conservation, particularly of its flora. Thus, the study aimed to survey the endangered species of Gymnosperms and Angiosperms extinction with specimens deposited in the “Herbário da Amazônia Meridional” collection (HERBAM). The survey was conducted between May and November 2015, through the analysis of the 2.137 species database of herbarium specimens deposited in HERBAM, identified by taxonomic specialists, floristic and parataxonomia. Families are in accordance with the classification of Angiosperm Phylogeny Website and endangered species are as the "Livro Vermelho da Flora do Brasil", following the threat categories according to the International Union for Conservation of Nature (IUCN). The research presents 46 families and 117 species of Angiosperms that were assessed during the preparation of the" Livro vermelho Vermelho da flora Flora do Brasil" with exsiccatae deposited in HERBAM, of these, 12 species belonging to 9 families are threatened with extinction The main families in species are Fabaceae, Meliaceae, Myristicaceae and Orchidaceae. Nine species are in category "Vulnerable - VU" and three species in the "In Danger - EN". Among the causes of threats stand out to habitat loss and extraction of plant resources. They are usually species of wide distribution. The vegetation types are diverse, is the riparian forest, upland forest and savanna. Mato Grosso State presented seven new occurrences of endangered species. The study showed the importance of HERBAM maintenance of endangered plants. The work showed the importance of HERBAM in the maintenance of exsicates of species threatened with extinction.
https://www.researchgate.net/publication/329371642_PLANTAS_COM_RISCO_DE_EXTINCAO_DEPOSITADAS_NO_HERBARIO_DA_AMAZONIA_MERIDIONAL_ALTA_FLORESTA_MATO_GROSSO_BRASIL

Ingresado el 16 de julio de 2019 por rickribeiro1 rickribeiro1 | 0 comentarios | Deja un comentario

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