Species composition and floristic relationships in southern Goiás forest enclaves

Garcia, Paulo Oswaldo; Valente, Arthur Sérgio Mouço; Pifano, Daniel Salgado; Pessoa, José Felipe Salomão; Busato, Luiz Carlos; Fontes, Marco Aurélio Leite; Oliveira‐Filho, Ary Teixeira de

doi:10.1590/2175-7860201162109

Cited by 5 publications

(9 citation statements)

References 38 publications

(36 reference statements)

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“…In addition, the unique species of each fragment also occurred in low numbers. In spite of the relatively small size of the sampled fragments, these facts point to the risk of rapid decline or local extinction of many plant species populations of the remaining semideciduous forests of Itumbiara in response to their increasing fragmentation (GARCIA et al, 2011).…”

Section: Flora Abundancementioning

confidence: 98%

“…Studies regarding the impact of habitat fragmentation and those that characterize the local vegetation and floristic similarities among the remaining areas in Central Brazil are still scarce (CARVALHO; DE MARCO JUNIOR;FERREIRA, 2009;GARCIA et al, 2011). The southern Goiás studied region is dominated by semideciduous seasonal forests, but their natural landscapes became a fragmented mosaic due to extensive cattle farming and agricultural activities that succeed in those rich basaltic originated soils (VIANA; TABANEZ; BATISTA, 1997;DE MARCO JUNIOR;FERREIRA, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Floristic composition and abundance in forest fragments: a case study from southern Goiás, Brazil

Soares¹,

Gonçalves²,

Araújo³

et al. 2015

Biosci. J.

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ABSTRACT:The fragmentation of tropical forests has been identified as the main reason for their biodiversity reduction. This process is extensively occurring in the Brazilian central area, where there still are insufficient information about the remaining flora and fauna of the Neotropical Savanna and Atlantic Forest ecotone. This study aimed to determine the floristic composition and the abundance of the arboreal and subarboreal components of four semideciduos forest fragments. The data indicates that the floristic richness is positively influenced by the fragment area. However, the proximity between fragments has no influence on their floristic composition. It was recorded 126 species belonging to 91 genera distributed in 43 families, with the dominance of Siparuna guianensis Aubl. in all fragments. More than half of the total number of species of the arboreal stratum was not recorded in the subarboreal stratum. In addition, the subarboreal stratum also presented exclusive species. A high number of unique species was also recorded in each fragment, which emphasizes the importance of these remnants conservation, regardless of their sizes and indicates the need to create a management plan to promote connectivity between these fragmented areas.

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Section: Flora Abundancementioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Floristic composition and abundance in forest fragments: a case study from southern Goiás, Brazil

Soares¹,

Gonçalves²,

Araújo³

et al. 2015

Biosci. J.

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“…A dissimilarity qualitative analysis was carried out by using the UPGMA (unweighted pair grouping method using arithmetic averages) linkage method and by Sørensen index (Legendre & Legendre 2012) regarding the selected fragments and literature data of seasonal forests in Goiás (Silva & Scariot 2003;Haidar et al 2005;Nascimento et al 2004;Imaña-Encinas et al 2007;Garcia et al 2011). The phytosociological parameters of horizontal structure (density, frequency, dominance and value of importance) were calculated for the woody communities in each fragment by using the Mata Nativa 2 software (CIENTEC 2004).…”

Section: Vegetation Surveymentioning

confidence: 99%

“…Knowledge about the floristic distribution patterns of seasonal forests could provide valuable information for conservation actions (Scariot & Sevilha 2000). The highest values of similarity of seasonal forests have been associated with the influence of nearby vegetation formations in northeastern and central Brazil (Garcia et al 2011;Santos et al 2012). However, there is a lack of studies comprising the seasonal forests in some regions of central Brazil such as the "mato grosso goiano" in northeastern Goiás and southern Tocantins.…”

Section: Introductionmentioning

confidence: 99%

Floristic and structural comparisons between woody communities of two seasonal forest fragments in the Tocantins river basin and other remnants of this forest physiognomy in Brazil

2014

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This work describes the woody layer composition and structure in two seasonal forest fragments in the Tocantins river basin and compares them to other remnants of this forest physiognomy in Brazil. The survey was carried out by using 17 plot samples (20 × 50 m) located in Palmeirópolis, state of Tocantins, and in Minaçú, state of Goiás. All woody individuals showing diameters ≥ 5 cm, at 1.30 cm above ground level, were recorded. The higher floristic similarity of these forest remnants compared with other closer seasonal forests did not show a distinct pattern. The floristic composition was more similar to that of a deciduous seasonal forest in the Paranã valley, and more dissimilar to other forests in this same valley. This result and a higher dissimilarity related to the southern forests in Goiás suggest that the forest fragments showed a floristic composition and structure typical of lowland seasonal forests in the Tocantins river basin. The results also indicated that the forest fragments have distinct floristic compositions with a relatively similar structure and diversity. Key words: dry seasonal forests, diversity, composition. ResumoA composição e a estrutura do componente arbóreo foram caracterizadas em dois fragmentos de floresta estacional na bacia do médio rio Tocantins e comparadas com outros remanescentes dessa fitofisionomia em outras regiões do Brasil. Os indivíduos foram amostrados em 17 parcelas de 20 × 50 m, nos municípios de Palmeirópolis (TO) e Minaçú (GO). Em cada parcela foram mensurados todos os indivíduos lenhosos que apresentaram diâmetro igual ou superior a 5 cm, medido a 1,30 m do solo (DAP ≥ 5 cm). A maior similaridade florística desses dois remanescentes com outras florestas estacionais mais próximas não apresentou um padrão claro. A composição florística nos fragmentos estudados foi mais similar a uma floresta estacional decidual no vale do Paranã, embora muito dissimilar em relação à outra floresta decidual nesse mesmo vale. Esse resultado e a maior dissimilaridade em relação às florestas do sul de Goiás sugerem que as atuais florestas apresentaram composição e estrutura características de florestas estacionais de baixa altitude da bacia do médio/alto rio Tocantins. Os resultados também indicam que cada fragmento investigado apresenta uma flora própria, com estrutura e diversidade relativamente similares. Palavras-chave: mata seca, diversidade, composição. Floristic and structural comparisons between woody communities of two seasonal forest fragments in the Tocantins river basin and other remnants of this forest physiognomy in BrazilComparações florísticas e estruturais entre comunidades arbóreas de dois fragmentos de florestas estacionais na bacia do rio Tocantins e outros remanescentes desta fisionomia florestal no Brasil

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“…(Forzza et al, 2012) DISTRIBUIÇÃO GEOGRÁFICA (Forzza et al, 2012) que Casearia sylvestris foi considerada uma espécie generalista com uma ampla distribuição geográfica que coloniza a partir da Floresta Atlântica para as comunidades de Cerrado do interior (Oliveira-Filho & Fontes 2000;Oliveira-Filho 2009;Garcia et al 2011). Quanto à afinidade com a Floresta Amazônica, esta possivelmente está relacionada à biogeografia do Bioma Savana, mais precisamente, o Cerrado.…”

Section: Distribuição Fitogeográficaunclassified

Composição florística de uma comunidade savânica no Rio Grande do Norte, Nordeste do Brasil

et al. 2012

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ABSTRACT(Floristic composition of a savanna community in Rio Grande do Norte, northeastern Brazil). In the municipality of Rio do Fogo (in 1976) a savanna community was registered by radar that, until now, has not been studied in loco. Some questions were asked about this community: Is this area Cerrado, floristically? What is the phytogeography of plant species in this community? Do rare, endemic or endangered species occur in this community? To answer these questions a floristic inventory, from August 2007 to September 2009, was performed in 400 ha of this region. The data indicated that of the 94 species recorded, 73 are associated with Cerrado, 69 also with Caatinga, 60 with Atlantic Forest, 47 with Amazonian forest, 14 with the Pantanal and 11 with the Pampa flora. Thirty-nine species are first listed for Rio Grande do Norte (RN); Stylosanthes gracilis Kunth (Fabaceae) and Aristida laevis (Nees) Kunth (Poaceae) are first records for the Northeast of Brazil. Aspilia procumbens Baker (Asteraceae) showed a restricted distribution in the state and is listed as critically endangered. Stilpnopappus cearensis Hobber is listed as vulnerable to extinction. It was concluded that this area can be floristically classified as Cerrado, which points to a key area for conservation.

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Species composition and floristic relationships in southern Goiás forest enclaves

Cited by 5 publications

References 38 publications

Floristic composition and abundance in forest fragments: a case study from southern Goiás, Brazil

Floristic composition and abundance in forest fragments: a case study from southern Goiás, Brazil

Floristic and structural comparisons between woody communities of two seasonal forest fragments in the Tocantins river basin and other remnants of this forest physiognomy in Brazil

Composição florística de uma comunidade savânica no Rio Grande do Norte, Nordeste do Brasil

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