Flora vascular não arbórea de um reflorestamento implantado com espécies nativas

Colmanetti, Michel Anderson Almeida; Shirasuna, Regina Tomoko; Barbosa, Luiz Mauro

doi:10.1590/2236-8906-26/rad/2015

Cited by 8 publications

(5 citation statements)

References 23 publications

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“…It is well-known that species richness can increase rapidly in secondary forests (Aide et al, 2000;Liebsch et al, 2007Liebsch et al, , 2008Letcher and Chazdon, 2009), while species composition and interactions recover at a much slower pace. In addition, non-arboreal life forms, like epiphytes, lianas, and ferns, will naturally colonize secondary forests (Guariguata and Ostertag, 2001;Colmanetti et al, 2015), albeit with lower diversity compared to mature or primary forest (Barthlott et al, 2001;Liebsch et al, 2008;Garcia et al, 2016). Liebsch et al (2008) also verified an increasing number of animal dispersed, non-pioneer and understory species with time after disturbances, although the authors estimated around 1,000 to 4,000 years to reach the levels of endemism existing in mature forests in the Atlantic Forest.…”

Section: Dynamics Of Natural Regenerationmentioning

confidence: 99%

Dynamics of Natural Regeneration: Implications for Landscape Restoration in the Atlantic Forest, Brazil

Siminski

Zambiazi

Santos

et al. 2021

Front. For. Glob. Change

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This study aimed to understand post-agricultural natural forest regeneration in the Southern Brazilian Atlantic Forest and its possible role as a cost-effective, passive approach to forest restoration. The study characterized vegetation structure, floristic composition, and the dynamics of secondary forest chronosequences. Data were collected from 159 plots (10 × 10 m each) across forest remnants in Santa Catarina State, covering forest ages that ranged from 2 to 60 years of regeneration after swidden agriculture. Only areas with no signs of degradation were sampled in order to provide a description of vegetation characteristics that could be used to identify and monitor natural regeneration. A total of 11,455 woody plants were identified and classified into 334 species representing 71 families. As the succession process unfolds, the continuous turnover of species makes forests more diverse and structurally complex. Floristic similarity among forest types is observed during the early stages of succession, but decreases over time. Pioneer species dominate young secondary forests, representing about 40% of the basal area up to 10 years of regeneration. Shade-tolerant species start colonizing the sites at early ages; however, they become more important structural elements only after 30 years of succession. The observed patterns of forest structure and species diversity largely conform to the post-agricultural succession seen in many tropical forests. The high species diversity found in this study highlights the importance of natural regeneration as a strategy to restore ecosystems. Floristic data can be used as a reference for choosing suitable species for active restoration, as well as contributing to the design of integrated restoration strategies. We herein reinforce the potential of natural regeneration as part of large-scale restoration programs, which would be particularly attractive to family farmers by the low cost of supplies and labor.

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Section: Dynamics Of Natural Regenerationmentioning

confidence: 99%

Dynamics of Natural Regeneration: Implications for Landscape Restoration in the Atlantic Forest, Brazil

Siminski

Zambiazi

Santos

et al. 2021

Front. For. Glob. Change

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“…Poaceae tem sido mostrada em riqueza de espécies em diversas savanas amazônicas por Rocha e Costa-Neto ( 2019 A forma herbácea foi dominante no estrato inferior de uma floresta no estuário amazônico (Braga e Jardim (2019) enquanto Colmanetti et al (2015) ao inventariarem as espécies não arbóreas em um reflorestamento notaram o predomínio de ervas de hábito terrícola.…”

Section: Resultsunclassified

“…As informações sobre a regeneração natural de savanas e cerrados reforçam a necessidade de assegurar esses conhecimentos para usos em políticas públicas. Esta assertiva está de acordo com Colmanetti et al (2015) afirmam que outros estudos relacionados à biodiversidade devem ser estimulados visando à obtenção de dados mais abrangentes sobre o potencial do bioma Cerrado para conservação, além da identificação dos produtos e subprodutos que podem ser obtidos e comercializados das espécies que compõem a vegetação ressaltando por fim a importância de políticas públicas e trabalhos de conscientização voltados para a conservação e sustentabilidade do bioma, considerando os benefícios econômicos e sociais que podem ser obtidos a partir do manejo mais racional dos seus recursos naturais, além daqueles ambientais, como a armazenagem de carbono, que contribui para a mitigação das emissões de gases do efeito estufa.…”

Section: Resultsunclassified

Composição florística da regeneração de um trecho de savana na Amazônia Oriental

Campos

Jardim

2020

Rev. Bras. Geog. Fis.

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O objetivo da pesquisa foi conhecer a composição florística da regeneração natural de um trecho de savana amazônica no estado do Pará. O estudo foi realizado em uma savana na localidade de Itapuá, município de Vigia de Nazaré, Pará a 93 km da cidade de Belém. A coleta de dados ocorreu mensalmente no período de setembro de 2019 a fevereiro de 2020 em 80 subparcelas de 1 x 1m alocadas aleatoriamente correspondente a 480 subparcelas em um total de 480 m2. Em cada subparcela foram identificadas e quantificadas todas as espécies com altura ≤ 1 m. A identificação botânica in loco foi realizada por um parabotânico do Museu Paraense Emilio Goeldi (MPEG. A organização das famílias foi de acordo com APG IV e caracterizada em família, gênero, espécie e forma de vida e calculada a média aritmética e desvio padrão com auxílio do Programa Bioestat 5.0. Foram registradas 36 famílias, 73 gêneros e 99 espécies. Fabaceae (14), Poaceae (13), Cyperaceae (9), Myrtaceae (7) e Dilleniaceae (6) foram representativas em número de espécies. Paspalum registrou o maior número de espécies (5) seguido por Chamaecrista, Myrcia e Scleria (4) e Axonopus, Borreria, Byrsonima, Davilla, Doliocarpus, Eriosema, Eugenia, Miconia, Ouratea, Polygala e Rhynchospora (2). A forma de vida dominante foi de Erva com 40 espécies, Arbusto (21) e Árvore (20). A savana de Itapuá apresentou riqueza de 99 espécies, 36 famílias e 73 gêneros estando acima que outras savanas amazônicas cujas espécies estiveram distribuídas nas famílias Fabaceae, Poaceae e Cyperaceae. O gênero Paspalum com o maior número de espécies juntamente com outras caracterizou a forma herbácea como a dominante. Este foi o primeiro registro de espécies regenerantes e suas formas de vida em uma savana amazônica. Com base nesses conhecimentos, outras iniciativas devem ser buscadas para outras manchas de savanas visando mostrar a importância da conservação destes ambientes que ultimamente vem sofrendo ampla degradação na Amazônia. Floristic composition of the regeneration of a stretch of savanna in the Eastern Amazon A B S T R A C TThe savannas are Amazonian and represent an ecological potential for use in several aspects, especially for traditional communities, however, they are suffering forest, environmental and human losses.The objective of the research was to know the floristic composition of the natural regeneration of a stretch of Amazonian savanna in the state of Pará. The study was carried out in the savanna of Itapuá, municipality of Vigia de Nazaré, Pará wich 93 km from the city of Belém. Data collection occurred monthly from September 2019 to February 2020 in 80 1 x 1m subplots randomly allocated corresponding to 480 subplots and a total of 480 m2. In each subplot, all species with height ≤ 1 m were identified and quantified. The botanical identification in loco was carried out by a parabotan from the Museu Paraense Emilio Goeldi (MPEG. The organization of the families was in accordance with APG IV and characterized in family, genera, species and way of life and calculated the arithmetic mean and standard deviation for families and life forms with the aid of the Bioestat 5.0 Program, 36 families, 73 genera and 99 species were registered, Fabaceae (14), Poaceae (13), Cyperaceae (9), Myrtaceae (7) and Dilleniaceae (6) were representative in number of Paspalum registered the largest number of species (5) followed by Chamaecrista, Myrcia and Scleria (4) and Axonopus, Borreria, Byrsonima, Davilla, Doliocarpus, Eriosema, Eugenia, Miconia, Ouratea, Polygala and Rhynchospora (2). Dominant life form was Herb with 40 species, Shrub (21) and Tree (20). It was concluded that the Itapuá savanna presented a richness of 99 species in comparison to other Amazonian savannas distributed in the Fabaceae, Poaceae and Cyperaceae families. Paspa lum with the largest number of species together with others characterized the herbaceous form as the dominant one. This was the first record of regenerating species and their life forms in an Amazonian savanna. Based on this knowledge, other initiatives should be sought for other savanna patches in order to show the importance of conserving these environments, which lately has been undergoing extensive degradation in the Amazon.Keywords: Lower stratum; way of life; conservation.

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“…In both areas, the shrub habit is predominant. Shrubs are characterized as residents of the understory for being in this stratum for their entire life cycle, and their mortality rates and recruitment are essential to maintain the dynamic equilibrium of a mature understory (Porto 2008;Colmanetti et al 2015).…”

Section: Discussionmentioning

confidence: 99%

Effects of urban ecosystem under the diversity and structure of two forest ecotones in Maranhão state

Santos,

Oda-Souza,

de Almeida

et al. 2023

Urban Ecosyst

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Forest ecotones are oristically rich but anthropogenic disturbances can differentiate their vegetation structure. This study evaluated the understory diversity of urban and nonurban forests in Maranhão. It tested the hypotheses that the understory of the nonurban forest has greater diversity and richness and that the spatial distribution of these variables in the understory of the urban forest has weak spatial dependence. The study was conducted in the municipalities of São Luís (urban area) and São José de Ribamar (nonurban area). Thirty plots (25m²) were demarcated and the woody individuals up to 2 m tall were measured. All phytosociological parameters were calculated. The differences in richness, density, and diversity were analyzed between the areas with the Mann-Whitney test, non-metric multidimensional scaling, and Hutcheson t-test. To visualize the variation in richness and diversity of the vegetation, ordinary kriging was used. There was a difference in the oristic composition and density of each species in the two areas; the richness and diversity were signi cantly greater in the nonurban area. The species with the highest IVs were Faramea nitida, Myrcia amazonica, and Ephedranthus pisocarpus in the nonurban forest and Protium heptaphyllum, Randia armata, and Moquilea tomentosa in the urban forest. Both understories had high diversity compared to other Amazonian regions. However, weak spatial dependence was found in the urban area, suggesting high anthropogenic interference in the environment. It is noteworthy that the areas represent a parcel of original ecotone vegetation in Maranhão and effective actions are needed to restore and conserve its diversity.

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Flora vascular não arbórea de um reflorestamento implantado com espécies nativas

Cited by 8 publications

References 23 publications

Dynamics of Natural Regeneration: Implications for Landscape Restoration in the Atlantic Forest, Brazil

Dynamics of Natural Regeneration: Implications for Landscape Restoration in the Atlantic Forest, Brazil

Composição florística da regeneração de um trecho de savana na Amazônia Oriental

Effects of urban ecosystem under the diversity and structure of two forest ecotones in Maranhão state

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