An Ecological Comparison of Floristic Composition in Seasonal Semideciduous Forest in Southeast Brazil: Implications for Conservation

We examined floristic patterns of ten seasonal semideciduous forest sites in southeastern Brazil and conducted a central sampling of one hectare for each site, where we took samples and identified all individual living trees with DBH (diameter at breast height, 1.30 m) ≥4.8 cm. Arboreal flora totaled 242 species, 163 genera, and 58 families. Fabaceae (38 species) and Myrtaceae (20 species) were families with the largest number of species. OnlyCopaifera langsdorffiiandHymenaea courbariloccurred at all sites. Multivariate analysis (detrended correspondence analysis and cluster analysis) using two-way indicator species analysis (TWINSPAN) indicated the formation of a group containing seven fragments in whichSiparuna guianensiswas the indicator species. This analysis revealed that similarities between studied fragments were due mainly to the successional stage of the community.

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REGENERAÇÃO NATURAL DE FLORESTA ESTACIONAL SEMIDECIDUAL EM DIFERENTES ESTÁGIOS SUCESSIONAIS (ZONA DA MATA, MG, BRASIL)

FLORESTA ◽

10.5380/rf.v44i1.30736 ◽

2013 ◽

Vol 44 (1) ◽

pp. 111 ◽

Cited By ~ 2

Author(s):

Sustanis Horn Kunz ◽

Sebastião Venâncio Martins

Keyword(s):

Natural Regeneration ◽

Species Abundance ◽

Detrended Correspondence Analysis ◽

Floristic Composition ◽

Importance Value ◽

Successional Stage ◽

Semideciduous Forest ◽

Regeneration Stage ◽

Successional Stages ◽

Seasonal Semideciduous Forest

O objetivo deste estudo foi avaliar a estrutura e a composição florística da regeneração natural de trechos de Floresta Estacional Semidecidual em diferentes estágios sucessionais. Para a estrutura fitossociológica, foram demarcadas sistematicamente 10 parcelas de 5 x 10 m em trecho de floresta em estágio médio de regeneração (FEM), floresta em estágio avançado de regeneração (FEA) e pastagem abandonada (PAS), sendo amostrados os indivíduos com altura ≥ 50 cme diâmetro à altura do solo ≤ 5 cm. Foi realizada análise de correspondência retificada e análise de espécies indicadoras de cada trecho. Na estrutura da regeneração natural da FEM e da pastagem, houve destaque de apenas uma espécie (Psychotria sessilis e Vernonia polyanthes, respectivamente) quanto ao Valor de Importância (VI), devido principalmente à alta densidade. Já na FEA não foi observada forte dominância por uma espécie. As três áreas apresentaram-se distintas quanto à abundância e composição de espécies, sugerindo que a matriz florestal é composta por um mosaico sucessional. Além disso, cada trecho ainda mantém espécies indicadoras características, de acordo com o estágio sucessional em que se encontram, razão pela qual ações de manejo e enriquecimento poderiam ser adotadas para acelerar o processo de sucessão.Palavras-chave: Composição florística; conservação; estrutura; sucessão secundária. AbstractNatural regeneration of seasonal semideciduous forest in different successional stages (Zona da Mata, MG, Brazil). The objective of this study was to evaluate the floristic structure and composition of the natural regeneration of stretches from Seasonal Semideciduous Forest in different successional stages. Ten plots, 5 x 10 meters in size, were systematically delimited for phytosociological structure in patches of forest which were in intermediate regeneration stage (FEM), advanced regeneration stage (FEA) and abandoned pasture (PAS).We sampled the individuals with ≥ 50 cm in height and diameter at ground height ≤ 5 cm. We performed Detrended Correspondence Analysis and analysis of indicative species of each forest section. In the natural regeneration structure of FEM and pasture it was featured only one species (Psychotria sessilis and Vernonia polyanthes, respectively) in the Importance Value (IV), mainly due to high density. In relation to the FEA there was no strong dominance by one species. The three sections showed distinct species abundance and composition, which suggests that the forest matrix comprises a successional mosaic. Furthermore, each stretch still maintains indicative characteristic species, according to the successional stage they are in. Because of this, management and enrichment actions could be performed to accelerate the succession process.Keywords: Floristic composition; conservation; structure; secondary succession.

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Species composition of climbers in seasonal semideciduous forest fragments of Southeastern Brazil

Biota Neotropica ◽

10.1590/s1676-06032009000400018 ◽

2009 ◽

Vol 9 (4) ◽

pp. 175-188 ◽

Cited By ~ 25

Author(s):

Karin dos Santos ◽

Luiza Sumiko Kinoshita ◽

Andréia Alves Rezende

Keyword(s):

Floristic Composition ◽

Southeastern Brazil ◽

Forest Site ◽

Forest Fragments ◽

Semideciduous Forest ◽

Number Of Species ◽

Forest Sites ◽

Forest Remnants ◽

Mean Similarity ◽

Made In

In this study we evaluated floristic composition patterns of communities of climbers within ten inventories carried out in semideciduous forest fragments of southeastern Brazil. One of the inventories is original, being carried out for the present study in Ribeirão Cachoeira forest, Campinas, São Paulo State, Southeastern Brazil. This inventory was then pooled together to other nine climbers' inventories made in other forests of Southeastern Brazil to form a data base, which was examined regarding species richness, similarity, species distribution and climbing methods. The total number of species obtained was 355, belonging to 145 genera and 43 families. The ten most diverse families Bignoniaceae (45 species), Fabaceae (42), Malpighiaceae (36), Asteraceae (31), Apocynaceae (29), Sapindaceae (28), Convolvulaceae (21), Cucurbitaceae (14), Passifloraceae (10), and Euphorbiaceae (8) contributed to 74.4% of the total number of species recorded. The commonest climbing method in the studied sites was main stem or branch twining, accounting for 178 species or 50.1% of the total, the second commonest was tendril climbing (121 species, 34.1%), and the least, scrambling (56 species, 15.8%). We found a high percentage of exclusive species i.e., those occurring in only one forest site, which accounted for 49.3% of the total recorded. The mean similarity among forest sites (30%) may be considered low. The climbing species contribution to the total wood plant richness recorded on the forests sites was very high in some of the sites (up to 52.5%). These results indicated the importance of climber communities to plant diversity for semideciduous forests in Southeastern Brazil, enhancing the regional diversity and the conservation value of these forest remnants.

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Comparison of the woody flora and soils of six areas of montane semideciduous forest in southern Minas Gerais, Brazil

Edinburgh Journal of Botany ◽

10.1017/s0960428600001839 ◽

1994 ◽

Vol 51 (3) ◽

pp. 355-389 ◽

Cited By ~ 53

Author(s):

A. T. Oliveira-Filho ◽

E. A. Vilela ◽

M. L. Gavilaness ◽

D. A. Carvalho

Keyword(s):

Community Structure ◽

Detrended Correspondence Analysis ◽

Floristic Composition ◽

Rio Grande ◽

Minas Gerais ◽

Southeastern Brazil ◽

Semideciduous Forest ◽

Qualitative And Quantitative ◽

Gallery Forests ◽

Upper Rio Grande

Qualitative and quantitative descriptions of the woody flora and soil analyses are provided for six areas of montane semideciduous forest in the upper Rio Grande region, southern Minas Gerais, Brazil. Comparisons are made of the floristic composition of these six areas and 24 other forest areas of southeastern Brazil using ordination by detrended correspondence analysis (DCA) and hierarchical classifications, both agglomerative (upgma) and divisive (twinspan). The variation in community structure of five of the six forest areas was analysed using a two-way table yielded by twinspan. The floristic analyses indicated the strongest link between the forests of the upper Rio Grande region and other montane forest formations of southeastern Brazil as well as secondary links with the gallery forests that extend into the cerrado domain and the submontane semideciduous forests of the Rio Parana basin. Variations in community structure among the five forest areas were apparently associated mainly with riverside effects and soil fertility.

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SOIL SEED BANK IN SEASONAL SEMIDECIDUOUS FOREST AND ABANDONED PASTURE

Revista Árvore ◽

10.1590/0100-67622016000600004 ◽

2016 ◽

Vol 40 (6) ◽

pp. 991-1001 ◽

Cited By ~ 1

Author(s):

Sustanis Horn Kunz ◽

Sebastião Venâncio Martins

Keyword(s):

Seed Bank ◽

Soil Seed Bank ◽

Life Forms ◽

Successional Stage ◽

Semideciduous Forest ◽

Regeneration Stage ◽

Significant Difference ◽

Successional Stages ◽

Pasture Area ◽

Seasonal Semideciduous Forest

ABSTRACT The objective of this study was to characterize the seed bank in the soil of different successional stages of Seasonal Semideciduous Forest and abandoned pasture in order to understand the natural regeneration potential of these areas. At each successional stage, 30 samples of soil were collected in the rainy and dry seasons to evaluate the qualitative heterogeneity of the forest, at the regeneration stage (FEA) forest, intermediate regeneration stage forest (ISF) and pasture (PAS). The species were classified according to the life form, successional group and dispersion syndrome. The number of individuals germinated was significantly higher (p < 0.001) in the ISF and in the rainy season (15,949 individuals). Richness was higher in the pasture area (79 species), with a significant difference only between the environments. Most species are herbaceous (49.5%), pioneers (76.5%) and zoocory was the main dispersion syndrome (49% of species). The results show that seed bank in the fragment of the regeneration advanced stage forest presents the highest resilience potential, since it is formed by different life forms and, mainly, by early and late secondary species.

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Influence of bryophyte biomass and organic matter quantity on the abundance and richness of oligochaetes in forest streams with different phytophysiognomies in southeastern Brazil

Journal of Limnology ◽

10.4081/jlimnol.2016.1284 ◽

2016 ◽

Author(s):

Luciana Falci Theza Rodrigues ◽

Felipe Silveira Leite ◽

Roberto Da Gama Alves

Keyword(s):

Organic Matter ◽

Southeastern Brazil ◽

Tropical Region ◽

Positive Relation ◽

Semideciduous Forest ◽

Different Types ◽

Ecological Importance ◽

Forest Streams ◽

Favorable Conditions ◽

Seasonal Semideciduous Forest

<p>Aquatic oligochaetes can be found associated with different types of substrates; including bryophytes (mosses and liverworts) adhered to stones in lotic ecosystems. However, little information is available on the association between oligochaetes and bryophytes in tropical region. Therefore, the aims of this study were: to investigate whether the assemblages of oligochaetes respond to variation in the biomass of bryophytes and quantity of particulate organic matter (POM) present on these plants; verify differences in the composition of oligochaetes in streams flowing through areas with two phytophysiognomies (rocky field and seasonal semideciduous forest). The samples were collected from five first-order streams in the southeast of the state of Minas Gerais. Six samples of bryophytes adhered to stones were obtained from each stream. A total of 1586 oligochaetes were collected and 11 taxa were identified, belonging to the families Naididae and Enchytraeidae. The most abundant taxa were <em>Bothrioneurum</em> (37.95%) and Enchytraeidae (33.01%). A positive relation was observed between oligochaete abundance and POM in two streams (Ibitipoca I and Ibitipoca III) and a positive relation was found between oligochaete abundance and bryophyte biomass in one stream (Ibitipoca I). The composition of the fauna varied within and between the phytophysiognomies studied. The results show that the oligochaetes find favorable conditions to establish themselves in bryophytes, evidencing the ecological importance of these plants as habitat for invertebrates.</p>

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Floristic composition of the Seasonal Semideciduous Forest in Southern Brazil: Reserva Biológica das Perobas, State of Paraná

Acta Scientiarum Biological Sciences ◽

10.4025/actascibiolsci.v40i1.35753 ◽

2018 ◽

Vol 40 (1) ◽

pp. 35753

Author(s):

Greta Aline Dettke ◽

Laianne Mayara Pezenti Crespão ◽

Luciana Veríssimo Siquerolo ◽

Edemilson Luiz Siqueira ◽

Marcelo Galeazzi Caxambú

Keyword(s):

Floristic Composition ◽

Southern Brazil ◽

Semideciduous Forest ◽

Seasonal Semideciduous Forest

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SEED BANK IN TWO SITES OF SEMIDECIDUOUS SEASONAL FOREST IN VIÇOSA, MINAS GERAIS

Revista Árvore ◽

10.1590/0100-67622016000300005 ◽

2016 ◽

Vol 40 (3) ◽

pp. 415-425 ◽

Cited By ~ 1

Author(s):

Antonio Jorge Tourinho Braga ◽

Eduardo Euclydes de Lima e Borges ◽

Sebastião Venâncio Martins

Keyword(s):

Seed Bank ◽

Floristic Composition ◽

Soil Samples ◽

Semideciduous Forest ◽

Bank Levy ◽

Successional Stages ◽

Semideciduous Seasonal Forest ◽

The Individual ◽

Seasonal Semideciduous Forest ◽

Distinct Period

ABSTRACT Aimed of this study was examine, describe and confronted the floristic composition and the density the seed bank in two successional stages of Seasonal Semideciduous Forest, in Viçosa, MG. Forty soil samples total in two distinct period (drought station finish and rainy station finis) and arranged for germinate in wooden boxes (0,5 x 0,5 x 0,1 m) in shading of 60%. The individual germination in each valuation epoch was compared utilizing the t test for independent samples; the test indicated one individual plants germination major in seed bank levy intermediary between epoch drought station finis and rainy station. Hundred nine taxons were sampled in the seed bank the forest altogether, 101 species were identified as belonging to 73 genera distributed among 40 families, 56 species commonness in two successional stages of forest and 49 species commonness of two levy period. Asteraceae was the families with the largest number of species as initial forest much as advanced forest, in both period of valuation. The herbaceous individuals predomination in all forests and valuation epoch, whit not representation the fragility of the seed bank.

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Lianas, tree ferns and understory species: indicators of conservation status in the Brazilian Atlantic Rainforest remnants, southeastern Brazil

Brazilian Journal of Biology ◽

10.1590/1519-6984.07715 ◽

2016 ◽

Vol 77 (2) ◽

pp. 213-226 ◽

Cited By ~ 3

Author(s):

A. C. D. Castello ◽

S. Coelho ◽

E. Cardoso-Leite

Keyword(s):

Protected Areas ◽

Indicator Species ◽

Protected Area ◽

Conservation Status ◽

Southeastern Brazil ◽

Successional Stage ◽

Management Actions ◽

Protected Areas Management ◽

Tree Ferns ◽

Shade Tolerant Species

Abstract Indicators are applied faster and at lower costs than conventional surveys, providing quick and efficient responses that can facilitate protected areas management. Our aim was to select indicators from vegetation to monitor protected areas. For this purpose, we analyzed understory and quantified lianas and tree ferns in protected and non-protected areas, in order to find indicator species. Our study areas are located in Vale do Ribeira, southeastern São Paulo state, Brazil. One of the areas is under two protection categories (IUCN's categories II and V), and the other is a privately owned farm. Lianas with large diameters (> 13 cm) and tree ferns with great heights (> 19 m) were considered indicators of undisturbed areas (protected areas) because their growth is directly related to forest successional stage. Indicator species within the protected area were shade tolerant species, such as Bathysa australis (A.St.-Hil.) K.Schum., whereas outside the protected area were pioneer species, such as Pera glabrata (Schott) Poepp. ex Baill. e Nectandra oppositifolia Ness. All of the suggested indicators can be used in management actions, especially in protected areas, to guarantee forest maintenance and ensure fulfillment of the conservation objectives of these areas.

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Atlantic Forest meeting Cerrado: floristic, structure, and species distribution of an ecotonal tree community

Nativa ◽

10.31413/nativa.v9i4.12732 ◽

2021 ◽

Vol 9 (4) ◽

pp. 471-480

Author(s):

Gabriel Pavan Sabino ◽

Vitor De Andrade Kamimura ◽

Gabriel Mendes Marcusso ◽

Reinaldo Monteiro

Keyword(s):

Atlantic Forest ◽

Species Distribution ◽

Abundant Species ◽

Southeastern Brazil ◽

Semideciduous Forest ◽

Floristic Similarity ◽

Tree Community ◽

Historical Photographs ◽

Seasonal Semideciduous Forest ◽

Floristic Structure

We evaluated the floristic and structural composition of a tree community in an ecotone between Cerrado (cerradão) and Atlantic Forest (seasonal semideciduous forest) domains located in Porto Ferreira State Park (PFSP), southeastern Brazil. We compared the floristic relationships of this ecotone with those of previous surveys carried out on the same vegetation types and checked the species distribution among the Brazilian biomes. We sampled all living trees with PBH>10 cm in 64 10x10 m plots (0.64 ha), totaling 1,755 individuals belonging to 101 species and 37 families. The richest families were Myrtaceae (13 spp.) and Fabaceae (11 spp.), and Siparuna guianensis was the most abundant species (188 individuals). We reported two threatened species. A great number of species are widely distributed, occurring in different Brazilian biomes. Floristic similarity values were low among the selected studies, but our sampled community clustered with communities of cerradão and ecotone areas of previous surveys. Our results corroborate that ecotonal areas have great tree diversity and the predominance of widely distributed species. This fact, combined with the vegetation thickening verified through historical photographs, reinforces that the study area belongs to an under-changing ecotone.

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SOIL FAUNA AND LEAF LITTER DECOMPOSITION IN DIFFERENT SUCCESSIONAL STAGES OF A SUBMOUNTAINOUS SEASONAL SEMIDECIDUOUS FOREST

FLORESTA ◽

10.5380/rf.v51i2.69413 ◽

2021 ◽

Vol 51 (2) ◽

pp. 429

Author(s):

Rodrigo Camara ◽

Marcos Gervasio Pereira ◽

Luciano Oliveira Toledo ◽

Carlos Eduardo Gabriel Menezes

Keyword(s):

Leaf Litter ◽

Litter Decomposition ◽

Soil Fauna ◽

Dry Season ◽

Leaf Litter Decomposition ◽

Successional Stage ◽

Semideciduous Forest ◽

Litter Bags ◽

Successional Stages ◽

Seasonal Semideciduous Forest

In tropical forests, the stage of ecological succession influences the nutrient cycling. This study aimed to analyze soil fauna community structure, composition, and leaf litter decomposition in fragments of intermediate-successional and late-successional Submountainous Seasonal Semideciduous Forest (ISF and LSF, respectively). We used a square metal frame to collect 10 samples of the leaf litter layer and surface soil (0.00-0.05 m depth) from each area in the wet and dry seasons. Soil fauna individuals were then extracted using a modified Berlese-Tüllgren funnel. For analysis of leaf litter decomposition, 15 litter bags containing 30 g of senescent leaves were randomly placed on the forest floor of each area in the dry season, and three bags were collected after 60, 90, 120, 150, and 180 days. LSF presented higher value of richness and was more associated with Diptera and Formicidae. There was no clear pattern in evenness and diversity with successional stage. The dissimilarity between ISF and LSF in terms of soil fauna community was greater in the dry season. Litter decomposition was almost identical in both areas.

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