Regeneration under the Canopies of Native Species in a Restoration Area

Marcuzzo, Suzane Bevilacqua; Viera, Márcio; Salin, Marcio

doi:10.1590/2179-8087.052117

Cited by 7 publications

(6 citation statements)

References 10 publications

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“…Also, the use of some native tree species as Handroanthus heptaphyllus and Peltophorum dubium could increase survival probabilities of planted saplings if fire occurs. The literature highly recommends using Enterolobium contortisiliquum in restoration projects (Max et al 2004; Lacerda & Figueiredo 2009; Marcuzzo et al 2020) but it was one of the species with the lowest post‐fire performance. This two‐year study has allowed determining that fire may be the main constraint for woody sapling recruitment in plantations in the region.…”

Section: Discussionmentioning

confidence: 99%

Eucalypt plantations for forest restoration in a fire‐prone mosaic of grasslands and forests in northern Argentina

Montiel

Zaninovich

Bedrij

et al. 2021

Restoration Ecology

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In ecosystems with grassland‐forest boundaries, tree plantations could be used to promote forest restoration. In the Humid Chaco region of central South America, fire is one of the main disturbances that shapes the landscape. As eucalypt plantations are flammable, the contribution they can make to forest restoration is questionable. We planted saplings of five native tree species in three different environments (forests, grasslands, and eucalypt plantations) and assessed microclimatic conditions likely to influence sapling survival and growth. After 1 year, accidental fires that affected much of the study area allowed us to investigate the susceptibility of different environments to fire occurrence and post‐fire sapling survival. We planted 600 saplings in four plots per environment. We evaluated fire occurrence in the study area for 2 years and ask whether this factor affects sapling survival. In grasslands, microclimatic conditions were more extreme than in plantations. Plantations and forests showed high pre‐fire sapling survival but growth was almost double in plantations, similar to grasslands for most species. In the study area, fire frequency was similar in plantations and grasslands, whereas forests plots never burnt during the 2‐year study period. Fire reduced sapling survival in plantations, but not in grasslands where survival was low and similar in burned and unburned plots. For top‐killed plants, post‐fire resprouting ability was species‐specific. While more firm conclusions await future studies with even larger sample sizes, our results indicate that fire management may be necessary in order to use eucalypt plantations as nurses in this fire‐prone ecosystem.

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Section: Discussionmentioning

confidence: 99%

Eucalypt plantations for forest restoration in a fire‐prone mosaic of grasslands and forests in northern Argentina

Montiel

Zaninovich

Bedrij

et al. 2021

Restoration Ecology

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“…Therefore, forest cover is constantly changing as species migrate to more favorable environmental areas along small altitudinal gradients (Renner et al 2022). Studies focused on natural regeneration help to predict the future forest behavior and development (Santiago et al 2014), as the dynamics of processes occurring in the regeneration stratum affects the characteristics of the adult vegetation, thus influencing the level of biodiversity and stability of the ecosystem (Aguiar et al 2017, Marcuzzo et al 2020). However, knowledge on how environmental changes along altitudinal gradients affect natural regeneration is scarce, especially in montane ombrophilous forests, probably due to the limited number of protected areas and their challenging accessibility.…”

Section: Introductionmentioning

confidence: 99%

How environmental factors condition natural regeneration in the altitudinal gradient of a montane rainforest

Braga Rodrigues Duarte,

Abreu de Souza,

Machado Dias

et al. 2024

iForest

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The response of plant species to the variation in abiotic factors affects the regeneration capacity and, consequently, the structure of the forest community. This study aims to describe the structure of the regenerating stratum in a Brazilian montane rainforest and investigate its relationship with environmental and spatial variables along an altitudinal gradient. Data on the height and diameter at soil height of regenerating individuals and environmental variables were collected from 28 sample units, distributed in seven altitudinal sites. To understand the spatial influence on species distribution, spatial variables (MEMs -Moran's Eigenvector Maps) were created based on geographic coordinates. Phytosociological parameters were calculated by species. Floristic similarity between the altitudinal quota was determined by the Bray-Curtis index (UPGMA), and the species that characterize each group were determined by the Indicator Species Analysis. Redundancy Analysis (RDA) was performed, and generalized linear models were adjusted to verify the influence of environmental and spatial factors on regenerating vegetation. The species Palicourea sessilis had the highest Importance Value in the regenerating community. Two floristic groups were formed: the highest sites (1420 to 1550 m a.s.l.) were floristically more similar to each other (Group 1) than to the sites in the 1112 to 1391 m elevation range (Group 2). Overall, 11 species were indicators of Group 1 and only one of Group 2. Finally, a pattern of species substitution was verified as a function of abiotic factors. The first two axes of the RDA explained 51.02% of the variation in the floristic composition of the regenerating community. Natural regeneration demonstrated environmental preferences, being influenced by luminosity, abundance in adult components, calcium and sodium contents, plant litter accumulation, altitude, and the spatial structure of the environment. Altitude did not seem to influence the pattern of abundance or richness of regenerating species.

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“…Establishment and development of new individuals through regeneration can be influenced by the opening of treefall gaps, litter accumulation, luminous incidence and nutrients (DUPUY; CHAZDON, 2008). Research that analyzes the interaction between environmental factors and plant species regeneration is still scarce in the seasonal forests of the Espírito Santo state, despite of being indispensable to provide knowledge about the behavior of populations within plant community (GARCIA et al, 2011), what will further provide insights and support decision making concerning actions towards environmental recovery (MARCUZZO; VIEIRA; SALIN, 2020).…”

Section: Introductionmentioning

confidence: 99%

Structure, floristic composition and environmental relationships of natural regeneration in a semideciduous seasonal forest

et al. 2022

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This paper aims to evaluate the floristic and structure of natural regeneration in a forest fragment located in the south of Espírito Santo State, as well as to verify the interaction between vegetation and environmental variables. The study was developed in Private Reserve of Nature Patrimony (RPPN) Cafundó, with twelve sample units (1 x 20m), where three classes based on size - Class 1 (plants between 0.1 and 1m high), Class 2 (plants between 1.1 and 3m high) and Class 3 (plants higher than 3m and less than 5cm DBH). This RPPN has a total area of 517ha, which approximately 358ha were used for allocation of experimental units. Individuals were classified according to ecological group and dispersion syndrome. Floristic diversity, equability, density and frequency of species were also calculated. Analysis of natural regeneration, floristic similarity between natural regeneration and the upper layer as well the regenerating layer interaction with environmental variables was performed through Canonical Correspondence Analysis. We found 678 individuals distributed in 73 morphospecies/species, with Actinostemon klotzschii and Goniorrhachis marginata being the most abundant. Sorensen's similarity between natural regeneration and the adult tree layer was 29%. The most dominant ecological groups were late secondary, while zoochory was the predominant dispersion syndrome among existing species. Shannon diversity index was 3.13 and equability 0.72. Goniorrhachis marginata, Actinostemon klotzschii and Psychotria carthagenensis species had correlation with carbon (C), phosphorus (P), declivity and canopy cover. We concluded that the natural regeneration component within studied area has a high richness and density of individuals when compared to studies developed in similar phytophysiognomies. The studied environmental variables seem to have little influence on the distribution of natural regeneration species in the RPPN, once only carbon, phosphorus, declivity and canopy cover have explained the species distribution within fragment.

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Regeneration under the Canopies of Native Species in a Restoration Area

Cited by 7 publications

References 10 publications

Eucalypt plantations for forest restoration in a fire‐prone mosaic of grasslands and forests in northern Argentina

Eucalypt plantations for forest restoration in a fire‐prone mosaic of grasslands and forests in northern Argentina

How environmental factors condition natural regeneration in the altitudinal gradient of a montane rainforest

Structure, floristic composition and environmental relationships of natural regeneration in a semideciduous seasonal forest

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