The tree-shrub vegetation in rocky outcrop cerrado areas in Goiás State, Brazil

Santos, Tassiana Reis Rodrigues dos; Pinto, José Roberto Rodrigues; Lenza, Eddie; Mews, Henrique Augusto

doi:10.1590/s1806-99592012000300007

Cited by 18 publications

(23 citation statements)

References 14 publications

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“…Similarly to other studies areas of Rupestrian Savannah (Silva et al 1996;Amaral et al 2006;Miranda et al 2007Miranda et al , 2010Moura et al 2007Moura et al , 2010Oliveira and Martins 2007;Pinto et al 2009;Abreu et al 2012;Santos et al 2012;Gomes et al 2016;Torres et al 2017), the families Myrtaceae, Fabaceae, Malpighiaceae and Erythroxylaceae were the richest families observed in the present study. These families were referred by Goodland and Ferri (1979) as "overrepresented" in the Cerrado.…”

Section: Discussionsupporting

confidence: 89%

Ferruginous Rupestrian Savannah: a floristic and structural analysis of these rare environments

Pereira¹,

Soares²,

Fonseca³

et al. 2019

NBC

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The flora of the Rupestrian Savannah (Cerrado Rupestre) is composed of widely distributed species and endemic species from high altitude rocky outcrops. The aim of this study was to characterise the floristic composition, structure and diversity of fragments of Rupestrian Savannah in south-eastern Brazil and to examine the similarity with other rupestrian cerrado vegetations and with cerrado sensu stricto on profound soils. For this, phytosociological parameters, evenness and diversity were calculated and compared with other studies. The survey exhibited 72 species, 45 genera, 30 families and high floristic similarity with cerrado on profound soils. There were no indicator species of the Rupestrian Savannah, but there were typical species of rocky environments. The basal area was significantly larger in the profound soil cerrado in relationship to the Rupestrian Savannah and evenness was lower in the Rupestrian Savannah of this study compared to others. These variables reflect the lower exploration capacity of the root of rocky environments. The highest similarity between the Rupestrian Savannah and cerrado on profound soils refers to the canga ferruginous nature, which represents the limit of the tableland of cerrado on the edge of the plateaus, allowing greater sharing of flora.

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Section: Discussionsupporting

confidence: 89%

Ferruginous Rupestrian Savannah: a floristic and structural analysis of these rare environments

Pereira¹,

Soares²,

Fonseca³

et al. 2019

NBC

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“…More detailed descriptions of the study sites are provided by Santos et al . (,b) and Mews et al . ().…”

Section: Methodsmentioning

confidence: 92%

“…The identification and taxonomic classification of the sampled species are described by Santos et al . (,b). The complete list of species and their abundances at the 20 sites are provided by Mews et al .…”

Section: Methodsmentioning

confidence: 99%

No evidence of intrinsic spatial processes driving Neotropical savanna vegetation on different substrates

et al. 2016

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The relationships between floristic patterns and environmental variation in tropical savannas have been the focus of many studies worldwide. However, important aspects of these relationships, such as the role of geographic distance in structuring plant communities, have received little attention. We investigated the individual and combined influences of substrate, climatic, and spatial factors on the floristicstructural dissimilarity between two savanna physiognomies in the core region of Brazilian savannas: one on plain relief with deep soils and another on steep relief with shallow rocky soils. Ten 1-ha plots were sampled in each physiognomy. We modeled species abundance using multiple linear models and variance partitioning. Our results indicated that spatial processes that are intrinsically related to species variation have negligible effects on floristic variation. The most important predictors in our models were related to soil characteristics (mainly nutrient availability) and topography (relief and elevation). Consequently, the substrate component exhibited the greatest power (14%) in explaining the floristic-structural variation in the overall variance partitioning. Our results provide the first demonstration of the individual and combined contributions of substrate, climatic, and spatial factors to the occurrence and abundance of woody species in the most diverse and threatened savanna in the world. We also provide evidence that neutral processes might not be strong predictors of vegetation structure where savanna substrates differ greatly; instead, community structure may be primarily regulated by environmental filters.Abstract in Portuguese is available with online material.

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“…Recent floristic and phytogeographic studies conducted in Cerrado sensu stricto have focused particularly on Cerrado Rupestre sites in Goiás , Santos et al 2012 and Mato Grosso States (Felfili et al 2002, Gomes et al 2011 as well as in the Federal District (Amaral et al 2006). Gomes et al (2011) and Abreu et al (2012) compared the Cerrado sensu stricto flora and structure on different substrates.…”

Section: Introductionmentioning

confidence: 99%

Structure and floristic relationships between Cerrado sensu stricto sites on two types of substrate in northern Cerrado, Brazil

et al. 2013

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Structure and floristic relationships between Cerrado sensu stricto sites on two types of substrate in northern Cerrado, Brazil. Biota Neotrop. (13)4: http://www.biotaneotropica.org.br/v13n4/en/abstract?article+bn02213042013 Abstract: We described and compared the floristic composition, richness, species diversity and structure of the tree-shrub component in pairs of Typical Cerrado (Cerrado Típico) and rocky outcrop Cerrado (Cerrado Rupestre) in two localities in Tocantins State. In each locality, we set up 10 plots of 20 × 50 m at a site, the Cerrado Típico and other Cerrado Rupestre, and sampled the individuals with Db 30cm ≥ 5 cm. The rocky outcrop Cerrado did not present any trend towards lower richness and basal area compared to the Cerrado on deep soil. Few species occurred across the four sites and only two important species (Anacardium occidentale and Qualea parviflora) in the four vegetation structure were common to both environments assessed. Furthermore, the occurrence of habitat-specialist species of rocky outcrops and high altitudes (Mimosa claussenii, Tibouchina papyrus, Schwartzia adamantium and Wunderlichia cruelsiana) and the high dissimilarity among sites suggest that altitude is the main responsible for the floristic dissimilarity, followed by the influence of substrate type. Therefore, the information with respect to phytophysiognomy type as a parameter to select areas for conservation, by itself, does not effectively ensure biodiversity preservation, owing to the existing flora heterogeneity not only at local but also at regional scale, revealed by the floristic and structural particularity of each site. Resumo: Descrevemos e comparamos a composição florística, a riqueza, a diversidade de espécies e a estrutura do componente arbustivo-arbóreo em pares de Cerrado Típico e Cerrado Rupestre em duas localidades no Estado de Tocantins. Em cada localidade, alocamos 10 parcelas de 20 × 50 m em um sítio de Cerrado Típico e em outro de Cerrado Rupestre e amostramos os indivíduos com Db 30cm ≥ 5 cm. Não identificamos tendência de que o Cerrado sobre solo raso com afloramentos rochosos tivesse riqueza e área basal inferiores ao Cerrado sobre solo profundo. Poucas espécies ocorreram nos quatro sítios e apenas duas espécies (Anacardium occidentale e Qualea parviflora) importantes para a estruturação das quatro vegetações foram comuns aos dois ambientes analisados. Aliado a isso, a ocorrência de espécies habitat-especialistas de ambientes com afloramentos rochosos e de elevadas altitudes (Mimosa claussenii, Tibouchina papyrus, Schwartzia adamantium e Wunderlichia cruelsiana) e a elevada dissimilaridade entre os sítios sugerem a altitude como principal responsável pela dissimilaridade florística, seguida pela influência do tipo de substrato. Assim, a utilização apenas da informação sobre o tipo fitofisionômico como parâmetro para escolha de áreas para conservação não garante a preservação efetiva da biodiversidade devido à heterogeneidade das floras existentes, tanto em escala local como regional, demonst...

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The tree-shrub vegetation in rocky outcrop cerrado areas in Goiás State, Brazil

Cited by 18 publications

References 14 publications

Ferruginous Rupestrian Savannah: a floristic and structural analysis of these rare environments

Ferruginous Rupestrian Savannah: a floristic and structural analysis of these rare environments

No evidence of intrinsic spatial processes driving Neotropical savanna vegetation on different substrates

Structure and floristic relationships between Cerrado sensu stricto sites on two types of substrate in northern Cerrado, Brazil

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