Estruturação espacial de traços funcionais de espécies arbóreas em função da distância da borda em Floresta Alto-Montana no sul do Brasil

Dreyer, J; Schlickmann, Monique Bohora; Cuchi, Tarik; Vieira, Francielle Santos; Moraes, Giselli Castilho; Higuchi, Pedro; Silva, Ana Carolina da

doi:10.5902/1980509833586

Cited by 2 publications

(2 citation statements)

References 18 publications

(23 reference statements)

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“…Wood density can vary according to habitat type, presenting lower values in anthropic forests and edges when compared to undisturbed forests and the interior (Muller-Landau, 2004;Laurance et al, 2006b;Berenguer et al, 2018). However, few authors reported that wood density has no variation to the edges and interior of the remnants (Magnago et al, 2014, Santo-Silva et al, 2016Dreyer et al, 2020). Signifi cant diff erences were found in wood density compared to habitat type in the present study, with lower values for edges than for the interior.…”

Section: Discussioncontrasting

confidence: 54%

Edge Influence Over Functional Tree Traits in an Atlantic Forest Remnant

et al. 2022

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Habitat fragmentation is one of the leading causes of edge genesis and its effects. Functional tree traits such as wood density, height, and diameter are essential variables from which it is possible to infer several ecological processes. This study assessed the variability of the functional traits of trees over two habitats (edge and interior) of a forest remnant. The hypothesis tested were i) the functional traits would have lower values at the edges than the interior, and ii) environmental variables would influence such differences. This study was carried out in the largest Atlantic Forest remnant within Serra da Tiririca State Park, Brazil, by establishing ten plots (50 × 20 m) among different habitats. Within each plot, wood samples were taken from all trees with a diameter of = 10 cm. It was recorded the altitude, distance from the plots to the edge, and fire records as possible explanatory variables (environmental variables). Wood density was obtained using the immersion method. To verify differences in functional traits by habitat, the Wilcoxon test was applied. Additionally, the influence of explanatory variables on functional traits through generalized linear models was evaluated. One hundred eighty-five trees were recorded at the edges and 218 trees at the interior of the remnant. Wood density and tree height were significantly lower in the edges than in the interior. Furthermore, the best models indicated significant relationships between wood density and habitats, as well as diameter and distance to the edge. This study was effective in raising suitable variables to predict edge effects.

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confidence: 54%

Edge Influence Over Functional Tree Traits in an Atlantic Forest Remnant

et al. 2022

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“…However, the contrasting pattern observed here underlines the idea that the functional heterogeneity is also influenced by a disturbances regime, which, by acting on a local scale, causes microclimatic alterations. Particularly in the study region, more open sites, like those in an early succession stage, have a more adverse microclimate for trees regeneration, such as higher frost frequency (Dreyer et al 2020). This fact could explain the predominance of smaller and more coriaceous leaves, even at a lower altitude.…”

Section: Discussionmentioning

confidence: 87%

Functional composition of subtropical highland forests in different successional stages in southern Brazil

Silveira¹,

Silva²,

Duarte³

et al. 2021

Bosque (Valdivia)

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Ecological succession is one of the most important processes in forest ecosystems, still poorly understood in the highland Araucaria forests of Southern Brazil. Here we investigated this process by describing functional composition changes in response to a vegetation successional mosaic in four forest fragments in the municipality of Urubici, State of Santa Catarina, Brazil. Two fragments were classified as in advanced stage of succession and two were classified in early stage. The following functional traits were determined: wood density, leaf area, specific leaf area, dispersal syndrome and leaf phenology. For each fragment, we determined the community weighted mean (CWM) and the functional diversity (RaoQ). Data were analyzed by descriptive statistics, t and Mann-Whitney tests and Principal Components Analysis. We found that the successional stage is a relevant source of functional heterogeneity. At the advanced-successional stage, tree communities have harder woods, more membranous and semi-deciduous leaves and higher functional diversity. Conversely, at the early successional stages, forests have softer wood, more coriaceous leaves and lower functional diversity. We concluded that the studied forests showed a high functional composition heterogeneity, partially determined by a successional mosaic. While perennial species with lower values of specific leaf area and wood density predominated in the early successional areas, semi-deciduous species with higher values of specific leaf area and wood density prevailed in the late successional ones.

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Estruturação espacial de traços funcionais de espécies arbóreas em função da distância da borda em Floresta Alto-Montana no sul do Brasil

Cited by 2 publications

References 18 publications

Edge Influence Over Functional Tree Traits in an Atlantic Forest Remnant

Edge Influence Over Functional Tree Traits in an Atlantic Forest Remnant

Functional composition of subtropical highland forests in different successional stages in southern Brazil

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