Composição Florística E Fitogeografica De Uma Floresta Atlântica No Sudeste Brasileiro

Cysneiros, Vinicius Costa; Braz, Denise Monte; Pelissari, Allan Libanio; Santos, Kênia Samara Mourão

doi:10.5380/biofix.v1i1.49103

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…These are the same families highlighted in this study and other studies conducted in the state of Rio de Janeiro (e.g. Kurtz and Araujo 2000;Borém and Oliveira-Filho 2002;Solórzano et al 2012;Cruz et al 2013;Cysneiros et al 2016). One of the richest families in Brazil is Fabaceae (Flora do Brasil 2021), which is characterized by having relationships with nitrogen-fixing bacteria and growing in different habitats (Raza et al 2020).…”

Section: Discussionsupporting

confidence: 73%

Tree structure and composition of a coastal remnant of the Atlantic Forest in Rio de Janeiro

et al. 2023

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The Atlantic Forest is one of the richest and most threatened biomes in Brazil. However, the structure and floristic composition of many of its remnants are still unknown. This study assessed the structure and tree composition of the Serra da Tiririca – SET coastal remnant, is the largest remnant in Serra da Tiririca State Park – PESET (Atlantic Forest, RJ). In ten 50 × 20 m plots installed between the edges and the interior of the remnant, we registered 403 trees distributed in 29 families, 59 genera, and 126 species. The richest and most abundant families were Fabaceae, Myrtaceae, and Meliaceae, while the most representative species were Gallesia integrifolia towards the interior of the remnant and Piptadenia gonoacantha towards the edges. The remnant had an average Shannon-Wiener Diversity of 3.69, a total basal area of 19.3 m2/ha, and an average diameter and height of 20.42 cm and 11.8 m, respectively. This study shows that the SET remnant is floristically heterogeneous and has distinct structural characteristics and stretches in different successional stages related to edge and interior gradients. Anthropogenic pressures on the remnant are likely to persist and are evidenced mainly by the forest structure.

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Section: Discussionsupporting

confidence: 73%

Tree structure and composition of a coastal remnant of the Atlantic Forest in Rio de Janeiro

et al. 2023

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“…Even though it is one of the most diverse biomes in Brazil and of significant environmental importance, the Atlantic Forest only accounts for 8.5% of its forest remnants (FUNDAÇÃO SOS MATA ATLÂNTICA, 2014;LIRA et al, 2016) and remains incessantly altered by actions anthropic (DANTAS; ALMEIDA; SANTOS, 2017), mainly through the rapid course of urban expansion that promotes direct damage and a drastic decrease in biodiversity, leaving the biome in critical conditions (CYSNEIROS et al, 2016;TEIXEIRA et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Qualitative survey of the entomofauna in a semideciduous seasonal sorest remnant

Lima

2023

RAmb.

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The Atlantic Forest has only 8.5% of its forest remnants and in the state of São Paulo, one of its phytophysiognomies, the Semideciduous Seasonal Forest, has registered accelerated and continuous deforestation, remaining for few areas still preserved, in parks, reserves or on private properties. Insects develop several ecological functions within these systems and are considered good indicators of environmental impacts and important members of biological processes. The objective of the present study was to carry out a preliminary qualitative survey of the diversity of entomofauna in a forest remnant, using the scanning method and photographic record, and to analyze the correlation between the number of specimens recorded and some climatological variables. A total of 213 individuals were registered, distributed among 14 orders and 85. Coleoptera was the most represented order with 64 records. Climatological variables, maximum and minimum temperature, rainfall and relative humidity did not influence the number of organisms. The species richness registered in this study constitutes an immeasurable natural resource, and, therefore, the preservation of this area becomes justifiable, not only because it is contained in a State Park, but also because of its genetic heritage.

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A New Species and Lectotypification in Ruellia (Acanthaceae) from the Southeastern Atlantic Forest, Brazil

2020

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Abstract—Ruellia capotyra is described as a new species of Acanthaceae from the Atlantic Forest of Brazil, occurring in the states of Rio de Janeiro and Minas Gerais. This species was discovered during fieldwork in a natural forested area, and further details regarding its ecology and broader geographical distribution were clarified through the study of existing herbarium collections. Ruellia capotyra is a subshrub characterized by long-petiolate leaves, long-pedunculate, axillary, and compound dichasia, and rose-colored, long, and curved corollas. It differs from other species of Ruellia by its quadrangular, glabrescent branches and rachises, the absence of bracteoles, calyces with subulate, unequal lobes, and sparse, long-glandular trichomes. The new species is described and illustrated. Diagnostic characters and comments regarding its geographical distribution, phenology, and taxonomy are presented. Ruellia capotyra is compared with other species previously described in the genus and its infrageneric position is discussed. One of these species is Ruellia subsessilis, for which a lectotype is here designated and its authority corrected. An informal IUCN conservation assessment of the new species indicated that it should be considered as a threatened species, further highlighting the conservation significance of the Atlantic Forest as a whole.

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Composição Florística E Fitogeografica De Uma Floresta Atlântica No Sudeste Brasileiro

Cited by 3 publications

References 11 publications

Tree structure and composition of a coastal remnant of the Atlantic Forest in Rio de Janeiro

Tree structure and composition of a coastal remnant of the Atlantic Forest in Rio de Janeiro

Qualitative survey of the entomofauna in a semideciduous seasonal sorest remnant

A New Species and Lectotypification in Ruellia (Acanthaceae) from the Southeastern Atlantic Forest, Brazil

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