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| Rodrigues,Misael Lira; Mota,Nara Furtado de Oliveira; Viana,Pedro Lage; Koch,Ana Kelly; Secco,Ricardo de S.. |
| ABSTRACT This study presents a floristic survey of the vascular plants of restingas of Lençóis Maranheses National Park, in the municipality of Barreirinhas, Maranhão, Brazil, including descriptions of the principal phytophysiognomies and similarity analyses including other restinga areas in North and Northeastern Brazil. Samples from the study area deposited in the herbaria MG, IAN and MAR were inventoried and fieldwork for the collection of additional botanical samples was undertaken between September 2015 and August 2017. Unweighted pair group method with arithmetic mean (UPGMA) using Jaccard index was used to calculate the similarity among floras of the restingas of the states of Pará, Piauí, Ceará and Maranhão. A total of 289 species in 189 genera and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dunes; Floristics; New occurrence records; Seed plants; White sand vegetation. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000300498 |
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| ROSSETTI,DILCE F.; MOULATLET,GABRIEL M.; TUOMISTO,HANNA; GRIBEL,ROGÉRIO; TOLEDO,PETER M.; VALERIANO,MÁRCIO M.; RUOKOLAINEN,KALLE; COHEN,MARCELO C.L.; CORDEIRO,CARLOS L.O.; RENNÓ,CAMILO D.; COELHO,LUIZ S.; FERREIRA,CARLOS A.C.. |
| Abstract: What controls the formation of patchy substrates of white sand vegetation in the Amazonian lowlands is still unclear. This research integrated the geological history and plant inventories of a white sand vegetation patch confined to one large fan-shaped sandy substrate of northern Amazonia, which is related to a megafan environment. We examined floristic patterns to determine whether abundant species are more often generalists than the rarer one, by comparing the megafan environments and older basement rocks. We also investigated the pattern of species accumulation as a function of increasing sampling effort. All plant groups recorded a high proportion of generalist species on the megafan sediments compared to older basement rocks. The vegetation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amazonian wetlands; Geological history; Late Pleistocene-Holocene; Megafan sedimentary dynamics; White sand vegetation. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700503 |
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