Diversity and floristic differentiation of South Brazilian coastal plain Atlantic forests based on herb layer life-forms

Santos-Junior, Ronaldo dos; Müller, Sandra Cristina; Waechter, Jorge Luiz

doi:10.1016/j.flora.2018.11.007

Cited by 3 publications

(1 citation statement)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A elaboração de listagens atualizadas, conhecidas como checklists, é essencial para fornecer informações abrangentes sobre a ocorrência de táxons em determinados locais, integrando dados de várias fontes. Checklists florísticos abrangendo todas as formas de vida são ferramentas indispensáveis para identificar lacunas de conhecimento em relação a grupos vegetais geralmente negligenciados em inventários florísticos, como ervas, epífitas e trepadeiras (Gentry & Dodson 1987, Santos-Júnior et al 2018.…”

Section: Introductionunclassified

Lista atualizada e aspectos sobre a conservação da flora vascular do Parque Estadual do Turvo, Rio Grande do Sul, Brasil

Piovesani,

Brack

2024

Iheringia Ser Bot

View full text Add to dashboard Cite

RESUMO -Listas florísticas em Unidades de Conservação constituem importantes ferramentas para a gestão da flora. A partir de um levantamento florístico publicado em 1985, utilizando as bases de dados disponíveis e coletas próprias, elaborou-se o checklist da flora vascular do Parque do Estadual do Turvo. Para cada espécie foram indicadas a forma biológica, o substrato, o habitat, a categoria de ameaça, bem como a classificação das reófitas. Foram registradas 891 espécies, sendo 799 angiospermas e 92 samambaias e licófitas, representando um acréscimo de 22,5 % em relação à listagem anterior. As famílias mais ricas foram Asteraceae (62 espécies), Poaceae (57) e Fabaceae (53). As ervas foram a forma biológica mais representativa (40 %), seguida pelas trepadeiras (18 %), árvores (17 %), epífitas e subarbustos (8 % cada), arbustos (7 %) e outras formas (2 %). Há 45 reófitas, sendo 14 exclusivas, 12 preferenciais e 19 ocasionais. Registraram-se 59 espécies ameaçadas de extinção, sendo 29 na categoria VU, 20 EN e dez CR. Foram destacadas 33 espécies com ocorrência restrita à região fisiográfica do Alto Uruguai, no Rio Grande do Sul. Os resultados demonstram a necessidade de atualizar periodicamente listas florísticas como uma das ferramentas básicas para a conservação da biodiversidade.Palavras-chave: espécies ameaçadas, levantamento florístico, reófitas, rio Uruguai, Unidades de Conservação ABSTRACT -Checklist and aspects on the conservation of the vascular flora of Turvo State Park, Rio Grande do Sul, Brazil. Floristic checklists in Protected Areas represent important tools for flora management. A checklist of Turvo State Park's vascular flora was created based on a floristic survey published on 1985, using the available databases and author's collections. For each species, information on biological form, substrate, habitat, category of threat, as well as the classification of rheophytes were provided. A total of 891 species were recorded, including 799 angiosperms and 92 ferns and lycophytes, representing an increase of 22.5 % compared to the previous list. The richest families were Asteraceae (62 species), Poaceae (57), and Fabaceae (53). Herbs were the most representative biological form (40 %), followed by climbers (18 %), trees (17 %), epiphytes and undershrubs (8 % each), shrubs (7 %), and other forms (2 %). There are 45 rheophytes, with 14 exclusive, 12 preferential, and 19 occasional. A total of 59 species are threatened with extinction, with 29 in the VU category, 20 in the EN, and ten in the CR. Thirty-tree species of restricted occurrence to the Alto Uruguai physiographic region in Rio Grande do Sul were highlighted. The present results demonstrate the need to periodically update floristic lists as one of the fundamental tools for biodiversity conservation.

show abstract

Section: Introductionunclassified

Lista atualizada e aspectos sobre a conservação da flora vascular do Parque Estadual do Turvo, Rio Grande do Sul, Brasil

Piovesani,

Brack

2024

Iheringia Ser Bot

View full text Add to dashboard Cite

show abstract

Patterns of Plant Diversity and Composition in Wetlands Across a Subtropical Landscape: Comparisons Among Ponds, Streambanks and Riverbanks

et al. 2021

View full text Add to dashboard Cite

Understanding how wetland plant communities are organized in different ecosystems and spatial scales is essential to support conservation. Studies that have addressed this primary need, however, are exceptionally scarce. Here, we compared the diversity (alpha, beta and gamma) and composition of herbaceous and woody communities (treated separately and jointly) in ponds, streambanks and riverbanks in the upper Uruguay River Basin, southern Brazil. Results showed that each wetland ecosystem exhibited unique community patterns, depending on the plant group, data property (e.g., presence-absence or abundance), and community parameter. All ecosystem types had exclusive species, beta diversity explained by high rates of species turnover and balanced variation in abundance components, and particular floristic composition, revealing that each wetland type and site contributes fundamentally to the overall wetland plant diversity. These findings indicate that safeguarding wetland plant diversity depends on the adoption of holistic conservation measures.

show abstract

Effect of woody plant removal in herb-subshrub communities in preserved and disturbed Brazilian Chaco areas

2022

View full text Add to dashboard Cite

The impacts caused on Chaco plant communities by the removal of woody species, together with the effects on the composition and functional structure of herbaceous plants, are still unknown. Therefore, this study aimed to assess the effects of anthropization on herb-subshrub communities in preserved and disturbed Chaco areas. Specifically, we examined differences and similarities in species diversity, composition and proportion of life forms in eight areas of Brazilian Chaco. Samples were taken from herb-subshrub communities using 800 1x1m² plots located in disturbed and preserved areas. Among 130 recorded species, 46 were exclusive to disturbed areas. The composition of species differed between preserved and disturbed areas (PERMANOVA; p = 0.001). PCoA ordination analysis showed greater aggregation of the plots in disturbed areas than in preserved areas. In preserved areas, an analysis of indicator species showed Hemicryptophytes species as the most representative life form. In disturbed areas, the proportion of life forms among indicator species was Hemicryptophytes, followed by Therophytes and Chamaephytes.Our study shows evidence that alterations in species composition, structure, and diversity, as well as sets of indicator species, occur in herb-subshrub communities. The removal of trees and bushes leads to a new configuration of this component in Chaco environments.

show abstract

Diversity and floristic differentiation of South Brazilian coastal plain Atlantic forests based on herb layer life-forms

Cited by 3 publications

References 35 publications

Lista atualizada e aspectos sobre a conservação da flora vascular do Parque Estadual do Turvo, Rio Grande do Sul, Brasil

Lista atualizada e aspectos sobre a conservação da flora vascular do Parque Estadual do Turvo, Rio Grande do Sul, Brasil

Patterns of Plant Diversity and Composition in Wetlands Across a Subtropical Landscape: Comparisons Among Ponds, Streambanks and Riverbanks

Effect of woody plant removal in herb-subshrub communities in preserved and disturbed Brazilian Chaco areas

Contact Info

Product

Resources

About