O Furacão Catarina e a Floresta Ombrófila Mista no Parque Nacional de Aparados da Serra, sul do Brasil

Santos, Robson dos; Elias, Guilherme Alves; Martins, Humberto de Bona; Padilha, Peterson Teodoro; Souza, Jhoni Caetano; Citadini-Zanette, Vanilde

doi:10.5007/2177-5230.2015v30n60p109

Cited by 4 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because of the geographical and climatic conditions, this forest formation has unique characteristics in the PNAS region, and this forest is preserved and also related to the richness of existing epiphytes (IBAMA, 2004). Santos et al (2015) highlighted that the forest in the PNAS is characterized with the emerging crowns of the araucaria, and confirmed that the canopy is formed mainly by species of Myrtaceae, Lauraceae and Aquifoliaceae. Furthermore, Bergamin (2010) pointed out that the Podocarpus lambertii is scarce.…”

Section: Study Areamentioning

confidence: 60%

Woody Debris Characterization in a Small Basin With Araucaria Forest

Campagnolo

Kobiyama

2021

Rev. Bras. Geomorfol.

View full text Add to dashboard Cite

The effect that wood deposited in a river, woody debris (WD), causes on its hydrogeomorphic processes depends on the dimensions of the wood and the channel. Studies related to WD are still very rare in Brazil. Therefore, the objective of the present study was to demonstrate the feasible methodology of field survey and to characterize the WD along a natural channel inside the Perdizes stream basin, located in the municipality of Cambará do Sul, Rio Grande do Sul state. The study basin is characterized by the Mixed Rain Forest (Araucaria Forest), in a good condition of conservation. The final part of the stream, from its mouth, was divided into 3 sections. The WD field survey within these sections included orientation against the channel, size, origin and location. A topographic survey was carried out to construct the stream longitudinal profile. The results show that the volume and frequency of WD are directly related to the presence of araucaria in riparian vegetation. The total WD-quantity was compared with other rivers around the world. Furthermore, it was observed that the highest proportion of WD was oriented parallel to the flow direction, confirming an already known trend. In addition, the obtained results permit to say that the present methodology of field survey and of statistical analysis is useful for the DW dynamics study.

show abstract

Section: Study Areamentioning

confidence: 60%

Woody Debris Characterization in a Small Basin With Araucaria Forest

Campagnolo

Kobiyama

2021

Rev. Bras. Geomorfol.

View full text Add to dashboard Cite

show abstract

“…In the study area, the formation of large clearings was observed, which included sample plots, at the time of the survey carried out in 2016. Santos et al (2015), analyzing the influence of the passage of a hurricane in Mixed Ombrophilous Forest at the National Park of Aparados da Serra, southern of Brazil, also observed that there were changes in the structure of the tree community.…”

Section: Horizontal Structural Dynamicsmentioning

confidence: 93%

Dynamics of Tree Population Structure After Disturbance of Araucaria Forest Remnants

et al. 2022

View full text Add to dashboard Cite

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.

show abstract

“…In just one southern Brazilian state, Santa Catarina, 45 extreme atmospheric events like cyclones and waterspouts were registered between 1976 and 2003 (Marcelino et al 2009), including more recent cyclone events in 2009, 2019, and 2020. As cyclones were historically rare disturbances in this region, their impacts on the forest and how plant communities recover from these events are poorly known, despite some previous works addressing it (Beckert et al 2014;Santos et al 2015;Liebsch et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…This vegetation covers large areas in south and Southeastern Brazil, mainly in high and cold plateaus (Duarte et al 2014;Kersten et al 2015;Rezende et al 2015), and it has been dramatically fragmented in recent years due to the expansion of planted forests and agriculture. Despite some studies addressing the effects of cyclones over treebreaking patterns and survival probabilities in the Araucaria Forest (Beckert et al 2014;Santos et al 2015), community-level analyses and interspecific variation are poorly documented.…”

Section: Introductionmentioning

confidence: 99%

How do trees survive a cyclone? The relative role of individual and site characteristics over mortality

et al. 2021

View full text Add to dashboard Cite

Cyclones are an increasing disturbance in the subtropical region of South America, but their impacts over the forests are still poorly documented. Here, we evaluate the effects of an extratropical cyclone over tree mortality in Araucaria Forest remnants in southern Brazil. We surveyed 116 sites (10 × 20 m each) and collected data on all tree individuals presenting DBH ≥ 4.8 cm before (2009) and after (2014) the occurrence of an extratropical cyclone. Using GLM models, we checked how the cyclone occurrence, different plant traits (DBH, trunk branching, wood density, successional group and evolutionary distinctiveness) and site characteristics (basal area, exposure, landscape protection, nearest border distance, cyclone border distance and the presence of native bamboo species) could impact tree mortality. The GLM model selection shows that the lowest AIC model considers all predictors separately and their interaction with the cyclone. The results showed that the cyclone occurrence and some site characteristics (bamboo presence, site exposure, landscape protection, nearest border distance and cyclone border distance) and plant traits (successional group and evolutionary distinctiveness) are related to tree mortality. The intense deforestation and fragmentation of the Araucaria Forest coupled with the increase in cyclone frequency expected for the region due to climate change may increase mortality rates of these forests, affecting their resilience and phylogenetic structure. Further biodiversity conservation efforts in the Araucaria Forest need to consider the characteristics of sites for enabling the protection of forest remnants in areas under different exposures to cyclone impacts.

show abstract

O Furacão Catarina e a Floresta Ombrófila Mista no Parque Nacional de Aparados da Serra, sul do Brasil

Cited by 4 publications

References 0 publications

Woody Debris Characterization in a Small Basin With Araucaria Forest

Woody Debris Characterization in a Small Basin With Araucaria Forest

Dynamics of Tree Population Structure After Disturbance of Araucaria Forest Remnants

How do trees survive a cyclone? The relative role of individual and site characteristics over mortality

Contact Info

Product

Resources

About