Dinâmica De Populações De Espécies Arbóreas Em Um Fragmento De Floresta Ombrófila Mista Montana Em Lages, Santa Catarina

Salami, Bruna; Higuchi, Pedro; Silva, Ana Carolina da; Ferreira, Tiago de Souza; Marcon, Amanda Köche; Júnior, Fernando Buzzi; Bento, Marco Antonio

doi:10.5902/1980509826451

Cited by 5 publications

(5 citation statements)

References 7 publications

(9 reference statements)

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“…In the Atlantic Forest of Brazil, differences in historical disturbances resulted in fragments of secondary forests that are in different stages of recovery but have a large proportion of their biodiversity conserved (Cruz et al, ; Ribeiro, Metzger, Martensen, Ponzoni, & Hirota, ; Salami et al, ). Under this scenario, to improve conservation and management actions for these forest remnants, we conducted a long‐term study in secondary forests in the southern region of the Atlantic Forest to investigate how these forests changed in time and space in relation to structure (abundance and basal area), floristic richness, species composition, demographic dynamics rates, alpha diversity and spatial beta diversity.…”

Section: Introductionmentioning

confidence: 99%

Spatial and temporal structure of diversity and demographic dynamics along a successional gradient of tropical forests in southern Brazil

Dalmaso

Marques

Higuchi

et al. 2020

Ecology and Evolution

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Analysis of the structure, diversity, and demographic dynamics of tree assemblages in tropical forests is especially important in order to evaluate local and regional successional trajectories. We conducted a long‐term study to investigate how the structure, species richness, and diversity of secondary tropical forests change over time. Trees (DBH ≥ 5 cm) in the Atlantic Forest of southern Brazil were sampled twice during a 10‐year period (2007 and 2017) in six stands (1 ha each) that varied in age from their last disturbance (25, 60, 75, 90, and more than 100 years). We compared forest structure (abundance and basal area), species richness, alpha diversity, demographic rates (mortality, recruitment, and loss or gain in basal area), species composition, spatial beta diversity, and temporal beta diversity (based on turnover and nestedness indices) among stand ages and study years. Demographic rates recorded in a 10‐year interval indicate a rapid and dynamic process of species substitution and structural changes. Structural recovery occurred faster than beta diversity and species composition recovery. The successional gradient showed a pattern of species trade‐off over time, with less spatial dissimilarity and faster demographic rates in younger stands. As stands grow older, they show larger spatial turnover of species than younger stands, making them more stochastic in relation to species composition. Stands appear to split chronologically to some extent, but not across a straightforward linear axis, reflecting stochastic changes, providing evidence for the formation of a nonequilibrium community. Policy implications. These results reiterate the complexity and variability in forest succession and serve as a reference for the evaluation and monitoring of local management and conservation actions and for defining regional strategies that consider the diversity of local successional trajectories to evaluate the effectiveness of restoration measures in secondary forests of the Atlantic Forest biome.

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Section: Introductionmentioning

confidence: 99%

Spatial and temporal structure of diversity and demographic dynamics along a successional gradient of tropical forests in southern Brazil

Dalmaso

Marques

Higuchi

et al. 2020

Ecology and Evolution

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“…According to Dallabrida et al (2019), the dynamics of the bush-tree component is not a spatially homogeneous process, having factors ecological, biotic, and abiotic influencing the demographic rates of the regenerative component and which will affect biodiversity conservation (Salami et al, 2014, Arroyo-Rodriguez et al, 2017.…”

Section: Discussionmentioning

confidence: 99%

Landscape resistance index aiming at functional forest connectivity

Vanderley-Silva,

Valente

2023

Environ Monit Assess

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The terrestrial surface is the basis for defining the species dispersion paths and overcoming the matrix resistance. In this approach, connecting paths with high levels of integrity must avoid barriers and anthropized areas. In this context, the main objective of this study was to develop the Landscape Resistance Index based on environment integrity. It was developed through Structural Equation Modeling (SEM), supported by the criteria of Land Surface Temperature, Nighttime Reflectance, and Inverted NDVI, which are called observed variables. The landscape studied in the Green Belt Biosphere Reserve of São Paulo has suffered from urban sprawl. However, it has significant remnants of the Atlantic Forest, which is a biodiversity hotspot. Our results indicated criteria variability in the landscape, however, modeled through the SEM, obtaining a significant adjustment of the Landscape Resistance Index, with CFI of 1.00 and RMSEA of 0.00. The index reflects the resistance levels of the land-use/land-cover, expressed by the class interval, ranging from 0% (1.73) to 100% (493.88), with the highest values associated with the anthropized uses and forest isolation. This way, the index based on environmental attributes reflects the structure of functional forest connectivity, supporting the planning design of forest corridors across landscapes.

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“…Individuals of A. angustifolia were not present in greater numbers than other species; however, they constituted the largest diameters. Araucaria angustifolia was also shown to be dominant in Mixed Ombrophilous Forests in studies by Figueiredo-Filho et al (2010), Higuchi et al (2013), Sawczuk et al (2014), Cubas et al (2016), andSalami et al (2017).…”

Section: Horizontal Structural Dynamicsmentioning

confidence: 94%

“…A study by Figueiredo-Filho et al (2010), which evaluated the dynamics of a Mixed Ombrophilous Forest, found that there was an increase in the basal area when average entry rate was close to 3% year -1 and mortality rate was between 1 and 2% year -1 . According to Salami et al (2017), variations in dynamics rates among different areas on a regional scale reflect differences in successional stages, environmental variables, and disturbance history.…”

Section: Tree Layer Dynamicsmentioning

confidence: 99%

Dynamics of Tree Population Structure After Disturbance of Araucaria Forest Remnants

et al. 2022

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This study aimed at evaluating and compare the changes from 2012 to 2016 in the structure and floristic composition of a remnant Araucaria Forest. The entry and mortality rates were 2.2% year -1 and 6.9% year -1 , respectively. Among the most represented species, those with the greatest yearly increases in their numbers were Sebastiania brasiliensis, Eugenia uniflora, and Allophylus sp. Average mortality density was 498 ind ha -1 , and was particularly high for the following species: Casearia decandra (representing 32.3% of total mortality), Eugenia sp. (27.2%), Cinnamodendron dinisii (24.5%), and Lithraea brasiliensis (25.2%). The pioneer species represented 8.33% of income and 29.17% mortality, and secondary species composed 33.33% and 62.50% of income and mortality, respectively. Climax species accounted for 8.33% of income and did not contribute to mortality. The high tree mortality observed in the present study can be attributed, among others factors, to the effects of natural disturbance that occurred in the period.

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Dinâmica De Populações De Espécies Arbóreas Em Um Fragmento De Floresta Ombrófila Mista Montana Em Lages, Santa Catarina

Cited by 5 publications

References 7 publications

Spatial and temporal structure of diversity and demographic dynamics along a successional gradient of tropical forests in southern Brazil

Spatial and temporal structure of diversity and demographic dynamics along a successional gradient of tropical forests in southern Brazil

Landscape resistance index aiming at functional forest connectivity

Dynamics of Tree Population Structure After Disturbance of Araucaria Forest Remnants

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