Levantamento florístico de uma mata decídua em Uberlândia, Minas Gerais, Brasil

Rodrigues, Luciene Alves; Araújo, Glein Monteiro

doi:10.1590/s0102-33061997000200011

Cited by 13 publications

(6 citation statements)

References 5 publications

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“…Fragments differed in the presence or absence of flooded forests, and with respect to the level of disturbance of the forest. Canopy height was usually between 15 and 20 m with some emergent trees up to 25 m. Details of the vegetation of the region can be found in Schiavini and Araú jo (1989), Araú jo and Haridasan (1997), , and Rodrigues and Araú jo (1997).…”

Section: Study Areamentioning

confidence: 99%

Effects of forest fragmentation on birds of the cerrado region, Brazil

Marini

2001

Bird Conservation International

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SummaryBird surveys were conducted through observations and mist-netting in six forest fragments in the cerrado region of central Brazil, to evaluate the effects of fragmentation on bird species richness and community composition. Smaller forest fragments had fewer species than larger fragments. The proportion of species in most foraging guilds did not change with forest size, except for that of granivores, which decreased as fragment size increased. The proportion of forest-dependent species increased significantly with increasing fragment size while that of semi-dependent species significantly decreased. Forest-dependent endemic birds, however, were not area sensitive, but appeared to be partially dependent on the flooded forests of the region. Conservation policies for the region should conserve both large and small forest fragments urgently, and flooded forests especially.

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Section: Study Areamentioning

confidence: 99%

Effects of forest fragmentation on birds of the cerrado region, Brazil

Marini

2001

Bird Conservation International

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“…Conhecer a flora e a estrutura comunitária da vegetação natural é importante para o desenvolvimento de modelos de conservação e manejo de áreas remanescentes e recuperação de áreas perturbadas ou degradadas (Salis et al 1994, Rodrigues & Araújo 1997. Tais estudos podem fornecer informações necessárias para a realização de futuros reflorestamentos.…”

Section: Introductionunclassified

Estrutura do cerradão e da transição entre cerradão e floresta paludícola num fragmento da International Paper do Brasil Ltda., em Brotas, SP

Gomes¹,

Martins²,

Tamashiro³

2004

Rev. bras. Bot.

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-(Structure of "cerradão" and transition between "cerradão" and swamp forest, in a fragment of International Paper of Brasil Ltda., in Brotas, SP). The cerrado biodiversity is being seriously threatened by deforestation, since many of its species present restrict geographic distribution. Because of its central position in South American continent, the cerrado has extensive borders with other vegetation types, including swamp forests. We aimed at: 1) knowing the flora and describing the community of shrubs and trees of a cerradão (savanna woodland) and its transition to a swamp forest in Brotas municipality, SE Brazil; 2) investigating the floristic similarity among other cerrado areas in São Paulo State. We found 125 species of 91 genera and 49 families in the fragment surveyed. Myrtaceae and Leguminosae had the highest species richness, a pattern frequently found in other areas of cerrado in São Paulo State. However, only in Brotas, Lauraceae and Euphorbiaceae had a high species richness. We sampled a total of 3,787 individuals (DSH ≥ 3 cm) in one hectare and estimated H' = 3,378 nats.individual -1 . The species with highest Importance Value Indices were Xylopia aromatica, Vochysia tucanorum, Ocotea pulchella, Gochnatia polymorpha, and Myrcia albo-tomentosa. There was no significant correlation between the floristic similarity and the geographical distance among the 10 cerrado areas compared, due the high proportion of common species. The high proportion of common species among cerrado areas in São Paulo State corroborates the results of other authors, who found that it is located on a center of diversity, whose floristic composition is different from the other Cerrado's diversity centers in Brazil.Key words -cerrado, community structure, floristic composition, swamp forest, floristic similarity RESUMO -(Estrutura do cerradão e da transição entre cerradão e floresta paludícola num fragmento da International Paper do Brasil Ltda., em Brotas, SP). A biodiversidade existente no cerrado está seriamente ameaçada pela devastação, pois muitas das espécies que aí ocorrem possuem distribuição geográfica restrita. Pela posição central do cerrado no continente sul-americano, ocorrem associações entre a vegetação do cerrado e outras formações, dentre estas a floresta paludícola. Os objetivos deste trabalho foram conhecer a flora e descrever a comunidade arbustivo-arbórea de um cerradão e da transição entre esse cerradão e uma floresta paludícola em Brotas, e investigar as similaridades e diferenças florísticas entre levantamentos realizados em fisionomias similares no estado de São Paulo. No fragmento ocorreram 125 espécies de 91 gêneros e 49 famílias. Myrtaceae e Leguminosae foram as famílias mais ricas em espécies, um padrão consistente com o encontrado em outros levantamentos nos cerrados paulistas. Somente em Brotas, Lauraceae e Euphorbiaceae apresentaram alta riqueza específica. No levantamento fitossociológico, em 1,0 ha, foram amostrados 3.787 indivíduos com DAS ≥ 3 cm (H' = 3,378 nats.indivíduo -1 ). As es...

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“…Microclimatic conditions, specifically humidity, degree and extent of exposure to light, are capable of influencing the number of individuals (abundance) and vegetation structure (Small & McCarthy 2002). Thus, the prevalence of the species Protium spruceanum in the bottom class environment type is probably explained by more humid conditions which may favour this species (Rodrigues & Araújo 1997), as its occurrence has been shown to be associated with moist areas of Atlantic Forests, Amazon Forests and riparian forests in the Cerrado biome (Rodrigues et al 2003). Conversely, Copaifera langsdorffii presents similar values across all environment types which may be explained by its generalist behaviour (Oliveira-Filho & Ratter 2000).…”

Section: Discussionmentioning

confidence: 99%

Environmental Heterogeneity Caused by Anthropogenic Disturbance Drives Forest Structure and Dynamics in Brazilian Atlantic Forest

Cirne-Silva¹,

Carvalho²,

Terra³

et al. 2020

JTFS

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We evaluated how tree community floristic composition, forest structure and dynamics varied over a period of 13 years across a topographic gradient of ravines created by anthropic disturbance in Brazilian Atlantic Forest. The study area is located within a fragment of Atlantic Forest (21° 09' S, 44° 54' W), in Minas Gerais state, Brazil. This work was based on data of tree diameter at 1.3 m from the soil, collected in four inventories. Each individual was recorded as being in one of three stratified topographic classes: hilltop, slope and bottom. We used direct gradient analysis to evaluate floristic compositional changes, phytosociological analysis to evaluate structural variations, and assessed demographic and biomass changes over time through analysis of rates of forest dynamics. The results did not reflect modifications in the patterns of floristic composition and species diversity along the topographic gradient, while differences in forest structural attributes and dynamics may be detected at these smaller spatial scales. Thus, the same species group may employ different strategies against different restrictive environmental factors. Finally, we suggest that floristic composition and species diversity may be less sensitive parameters for post-disturbance responses than forest dynamics and structure.

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Levantamento florístico de uma mata decídua em Uberlândia, Minas Gerais, Brasil

Cited by 13 publications

References 5 publications

Effects of forest fragmentation on birds of the cerrado region, Brazil

Effects of forest fragmentation on birds of the cerrado region, Brazil

Estrutura do cerradão e da transição entre cerradão e floresta paludícola num fragmento da International Paper do Brasil Ltda., em Brotas, SP

Environmental Heterogeneity Caused by Anthropogenic Disturbance Drives Forest Structure and Dynamics in Brazilian Atlantic Forest

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