@article {34, title = {Species richness in restinga vegetation on the eastern Maranh{\~a}o State, Northeastern Brazil}, journal = {Acta Amazonica}, volume = {46}, year = {2016}, pages = {271-280}, chapter = {271}, abstract = {

The State of Maranh\ão comprises the second largest coastline in Brazil. Nonetheless, few floristic surveys on restinga
vegetation have been performed in Northeastern Brazil. This study aimed to survey floristic in a restinga of Maranh\ão, and to assess its similarity to other restingas in the states of Par\á and Piau\í. Botanical specimens were sampled at S\ítio Aguahy, in the municipality of S\ão Jos\é de Ribamar, along the eastern coast of Maranh\ão between June/2012 and October/2013. Species identification and life forms classification followed the usual methods employed in floristic studies. Similarities in plant composition of six sites were estimated based on cluster analysis through Bray-Curtis distance. In the studied area, we found 116 phanerogamic species, 100 genera and 52 families; 19 species were new occurrences for the restinga of Maranh\ão. Families with largest number of species were Fabaceae, Cyperaceae, Rubiaceae, Poaceae, Myrtaceae, Asteraceae, Malvaceae, Combretaceae, and Eriocaulaceae, which comprised 49.2\% of all sampled species. We identified 41 nanophanerophytes, 34 terophytes, 15 camephytes, ten microphanerophytes, six hemicryptophytes, and five lianas. Similarity analyses indicated greater affinity between the restinga flora from the states of Maranh\ão and Par\á than that observed for the states of Maranh\ão and Piau\í, suggesting that the process of species colonization in the former is more likely derived from the Amazon Forest. It is expected that these results may encourage future researchers to conduct further surveys in restinga areas of the Maranh\ão aiming to better understand the influence of neighboring vegetation on the colonization of the coastal areas of Maranh\ão.

O Estado do Maranh\ão possui o segundo maior litoral da costa brasileira. No entanto, poucos levantamentos flor\ísticos foram realizados nas \áreas de restinga no Nordeste do Brasil. O presente estudo teve como objetivo realizar um levantamento flor\ístico em uma \área de restinga no Maranh\ão e analisar a similaridade com a flora das restingas dos Estados do Par\á e do Piau\í. As coletas bot\ânicas foram realizadas na restinga do S\ítio Aguahy, munic\ípio de S\ão Jos\é de Ribamar, na por\ç\ão oriental da Ilha do Maranh\ão, no per\íodo de junho de 2012 a outubro de 2013. A identifica\ç\ão das esp\écies e a classifica\ç\ão das formas de vida seguiu a metodologia usual em estudos flor\ísticos. A similaridade foi realizada atrav\és de an\álise de cluster a partir da dist\ância de Bray-Curtis, onde foram considerados seis estudos. Foram listadas 116 esp\écies fanerog\âmicas, 100 g\êneros e 52 fam\ílias. Deste total, 19 esp\écies s\ão apresentadas como novas ocorr\ências para o litoral do Maranh\ão. As fam\ílias com maior n\úmero de esp\écies foram Fabaceae, Cyperaceae, Rubiaceae, Poaceae, Myrtaceae, Asteraceae, Malvaceae, Combretaceae e Eriocaulaceae, correspondendo a 49.2\% das esp\écies encontradas. Quanto \às formas de vida, foram identificados 41 nanofaner\ófitos, 34 ter\ófitos, 15 cam\éfitos, 10 microfaner\ófitos, seis hemicript\ófitos e cinco lianas. A an\álise de similaridade mostrou maior afinidade entre a flora da restinga do Maranh\ão e do Par\á, do que com a flora do Piau\í, sugerindo uma poss\ível coloniza\ç\ão da restinga estudada por esp\écies provenientes da floresta Amaz\ônica. Espera-se que esses dados sejam vistos como um passo inicial para a realiza\ç\ão de mais pesquisas nas demais restingas maranhenses para que, futuramente, proporcione a compreens\ão da influ\ência da vegeta\ç\ão circunvizinha na coloniza\ç\ão das \áreas litor\âneas do Maranh\ão.

}, keywords = {Brazilian northeast, Coastal sand plains, ecotone, ec{\'o}tono, floristic similarity, Nordeste do Brasil, Plan{\'\i}cie arenosa costeira, similaridade flor{\'\i}stica}, doi = {http://dx.doi.org/10.1590/1809-4392201504704}, author = {Serra, F.C.V. and Lima, P.B. and Almeida_Jr, E.B.} } @article {33, title = {A flora de Cajueiro da Praia: uma {\'a}rea de tabuleiros do litoral do Piau{\'\i}, Brasil}, journal = {Revista Equador (UFPI)}, volume = {5}, year = {2016}, pages = {21-35}, chapter = {21}, abstract = {

O litoral do Piau\í apresenta duas forma\ç\ões geol\ógicas distintas: \áreas assentadas sobre areias
quartzosas do Quatern\ário e a Forma\ç\ão Barreiras do Terci\ário. Este estudo apresenta a composi\ç\ão
flor\ística de tabuleiro litor\âneo situado no munic\ípio de Cajueiro da Praia (PI), al\ém de dados relacionados
aos fatores abi\óticos para regi\ão. Foram comparados os dados sobre a vegeta\ç\ão da regi\ão com \áreas de
restingas subjacentes. O estudo apresenta uma da lista de 73 esp\écies, pertencentes a 33 fam\ílias bot\ânicas,
classificadas de acordo com o Sistema APG III.

}, keywords = {Forma{\c c}{\~a}o Barreiras, Litoral do Nordeste do Brasil, Vegeta{\c c}{\~a}o litor{\^a}nea}, author = {Santos-Filho, F.S. and Mesquita, T.K.S. and Almeida_Jr, E.B. and Zickel, C.S.} } @article {32, title = {Checklist of the flora of the restingas of Piau{\'\i} state, Northeast Brazil}, journal = {Check List}, volume = {11(2)}, year = {2015}, pages = {10}, chapter = {1}, abstract = {

Sandy coastal plain vegetation (Restinga) is composed of communities of plants that grow on Quaternary Neosols along the entire extension of the Brazilian coast. The state of Piau\í has a coastal extension of 66 km and is entirely located in the semi-arid zone of Northeastern Brazil. This study catalogued the phanerogam species found along the coast of the state of Piau\í, the data of which was compiled from surveys in online databases and literature, and herbarium collections. A total of 363 species distributed among 235 genera, and 74 families were identified. The families with the greatest number of species included Fabaceae (108 species), Euphorbiaceae (19), Amaranthaceae (13), Apocynaceae (12), Cyperaceae (12), Rubiaceae (12), Bignoniaceae (11), Malvaceae (11) and Poaceae (11) and represent over 57.6\% of the species collected. Approximately 87\% of the species were common to other restinga areas in Northeastern Brazil, and ca. 13\% were restricted to the coast of the state of Piau\í.

}, keywords = {coastal vegetation, herbarium, Northeastern Brazil, Quaternary Neosols, restinga vegetation}, author = {Santos-Filho, F.S. and Almeida_Jr, E.B. and Lima, P.B. and Soares, C.J.R.S.} } @article {31, title = {Do edaphic aspects alter vegetation structures in the Brazilian restinga?}, journal = {Acta Botanica Brasilica}, volume = {27}, year = {2013}, pages = {613-623}, chapter = {613}, abstract = {

The vegetation of the Brazilian restinga (coastal woodland) presents a variety of species and different characteristics,
encompassing fields, fruit groves and forests on quartzarenic neosols. We hypothesised that the structure of the
restinga landscape along the coast of the state of Piau\í is influenced by edaphic factors and presents a pattern similar
to that of other northeastern restingas. We evaluated three restingas in Piau\í, using the quarter method to determine
their structure. Composite soil samples were collected to determine their chemical and physical properties. Edaphic
variables were correlated with plant species by canonical correspondence analysis (CCA). Phytosociological data for all
three areas indicated regenerating vegetation comprising several small individuals, 82.5\% of which showed a diameter
at ground level \≤ 13 cm. We also observed considerable tillering. In two of the areas, there was a predominance of
Fabaceae species, such as Caesalpinia pyramidalis and Copaifera martii. Although the structural characteristics of the
restingas studied were similar to those of other northeastern restingas, the former showed lower Shannon diversity
indices (2.18-2.44). The CCA indicated that species distribution was influenced by edaphic factors such as pH, aluminium content and amount of organic matter. The restingas studied were similar to others along the Brazilian coast.

}, keywords = {canonical correspondence analysis, coastal vegetation, edaphic interactions}, author = {Santos-Filho, F.S. and Almeida_Jr, E.B. and Zickel, C.S.} } @article {30, title = {Magnoliophyta, restinga vegetation, state of Cear{\'a}, Brazil}, journal = {Check List}, volume = {7}, year = {2011}, pages = {478-485}, chapter = {478}, abstract = {

Sandy coastal plain (Restinga) vegetation is composed of the plant communities that grow on Quaternary Neosols along the entire Brazilian coast. Cear\á state has a coastal extension of 578 km and lies totally within the semi-arid
zone of northeastern Brazil. Here we present a checklist of the phanerogamic species found along the coast of Cear\á that
was compiled from surveys and collections found at the EAC herbarium (Fortaleza, Cear\á). A total of 391 species\  distributed among 208 genera and 41 families were identified. The families with the greatest numbers of species were Fabaceae senso latu (130 species), Cyperaceae (51), Poaceae (47), Rubiaceae (27), Euphorbiaceae (19), Asteraceae (13), Bignoniaceae (11) and Malvaceae (12), representing over 78.77\% of the species collected.

}, author = {Santos-Filho, F.S. and Almeida_Jr, E.B. and Bezerra, L.F.M. and Lima, L.F. and Zickel, C.S.} } @article {29, title = {Fisionomias das restingas do Delta do Parna{\'\i}ba, Nordeste, Brasil}, journal = {Revista Brasileira de Geografia F{\'\i}sica}, volume = {3}, year = {2010}, pages = {218-227}, chapter = {218}, abstract = {

O presente trabalho traz uma caracteriza\ç\ão das restingas da \Área de Preserva\ç\ão Ambiental do Delta do Parna\íba, litoral do Piau\í, Nordeste do Brasil. Foram estudadas e georreferenciadas as forma\ç\ões vegetais das \áreas assentadas sobre solos Quatern\ários. Foram identificados os tr\ês tipos de fisionomias tamb\ém presentes em outras restingas de diferentes regi\ões do litoral brasileiro, assim como os subtipos mais frequentes. Al\ém de uma concisa descri\ç\ão das fisionomias encontradas no local, o trabalho traz uma lista das esp\écies mais freq\üentes que predominam nestas paisagens.

This paper attempts to characterize \"Restinga\" (coastal vegetation) located at EPAs (Environmental Protection Areas) in the Parnaiba river delta by the coast of the state of Piau\í, in the northeast of Brazil. Vegetation forms in areas over on soils of the Quaternary age were studied and geographically-referenced. The three types of physiognomy were identified, these being the same types found at other \"Restinga\" areas on the Brazilian coast, as well as the most frequent subtypes. Along with a concise description of the physiognomy found on the coast of Piau\í, this paper also brings a list of the most frequent species that predominate in this landscape.

}, author = {Santos-Filho, F.S. and Almeida_Jr, E.B. and Soares, C.J.R.S. and Zickel, C.S.} } @article {27, title = {Expansion of the geographic distribution of Faramea nitida Benth. in the restinga of Maranh{\~a}o state, northeastern Brazil}, journal = {Check List}, volume = {12(1)}, year = {2016}, month = {23 January 2016}, pages = {1-3}, chapter = {1}, abstract = {

In this study, we present new records of
Faramea nitida that extend the range of this species in
Maranh\ão state, Brazil. The new data were the result
of fieldwork by us in restinga areas of S\ão Jos\é de
Ribamar and Alc\ântara districts. This report highlights
the rediscovery of a species after many years (30 to 70
years) and shows the necessity for more floristic and
taxonomic studies on extreme northeastern Brazil.

}, keywords = {coastal vegetation; species rediscovery; Rubiaceae; S{\~a}o Lu{\'\i}s}, issn = {ISSN 1809-127X}, doi = {http://dx.doi.org/10.15560/12.1.1831}, author = {Castro, A.R.R. and Almeida_Jr, E.B.} }