Influence of pioneer-species combinations on restoration of disturbed ecosystems in the Atlantic Forest, Rio de Janeiro, Brazil

Cortines, Erika; Valcarcel, Ricardo

doi:10.1590/s0100-67622009000500015

Cited by 13 publications

(16 citation statements)

References 22 publications

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“…Secondly, the retention of functional diversity within small fragments and edges was maintained by non‐zoochoric pioneer and initial secondary tree species. These species are excellent dispersers and, in the event of agricultural abandonment or land purchases to reconnect forest fragments (Martínez‐Garza & Howe ; Cortines & Valcarcel ; Simmons, Wu & Whisenant ; see also http://savingspecies.org), they could play important roles as sources of seeds in the recovery of early secondary forests. Thirdly, the apparent absence of change in wood density across the fragmentation gradient suggests that even small fragments can be important carbon stores, with potential cobenefits between carbon market payments, ecological services and biodiversity protection (Díaz, Hector & Wardle ; Phelps, Webb & Adams ).…”

Section: Discussionmentioning

confidence: 99%

Functional attributes change but functional richness is unchanged after fragmentation of Brazilian Atlantic forests

et al. 2014

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Federal de Vic ßosa, Vic ßosa, Minas Gerais, Brasil Summary 1. Fragmentation of tropical forests is one of the greatest threats to global biodiversity. Understanding how biological and functional attributes of communities respond to fragmentation and, in turn, whether ecosystem functioning is impacted upon are critical steps for assessing the long-term effects and conservation values of forest fragments. Ecosystem functioning can be inferred through functional diversity metrics, including functional richness, evenness and divergence, which collectively quantify the range, distribution and uniqueness of functional traits within a community. 2. Our study was carried out in forest remnants of the Brazilian Atlantic rain forest, which is a global hotspot of threatened biodiversity that has undergone massive deforestation and fragmentation. We focus on trees, which play critical functional roles in forest structure, food provisioning and carbon storage, to examine community organization and functional diversity across a gradient of fragmentation, from small to large fragments and at edge versus interior habitats. 3. The interiors of small fragments have marginally higher species richness, but similar community structures, to the interiors of bigger fragments. In contrast, fragment edges suffered significant losses of species and changes in community structure, relative to fragment interiors. 4. Despite shifts in community organization, functional richness was not impacted by fragmentation, with the same number of functions provided independent of fragment size or proximity to edge. However, functional evenness and functional divergence both increased with decreasing fragment size, while fragment edges had lower functional evenness than interiors did, indicating that the abundance and dominance of functional traits has changed, with negative implications for functional redundancy and ecosystem resilience. At fragment edges, large-fruited trees, critical as resources for fauna, were replaced by early successional, small-seeded species. The influence of fragment size was smaller, with a reduction in very large-fruited trees in small fragments counterbalanced by increased numbers of fleshy-and medium-fruited trees. Wood density was not impacted by fragmentation. 5. Synthesis. These results suggest that the interiors of even small fragments can contain important biodiversity, ecosystem functions and carbon stores, offering potential opportunities for cobenefits under existing carbon markets. Retaining forest fragments is an important conservation strategy within the highly threatened Brazilian Atlantic forest biome.

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Section: Discussionmentioning

confidence: 99%

Functional attributes change but functional richness is unchanged after fragmentation of Brazilian Atlantic forests

et al. 2014

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“…O aumento populacional intensificou a pressão de uso dos recursos do bioma Mata Atlântica, principalmente com a substituição das florestas para estabelecimento de culturas agrícolas, pecuária e expansão urbana, o que afetou diretamente a vegetação e suas funcionalidades (GROENEVELD et al, 2009;LIRA et al, 2012;SCARANO;CEOTTO, 2015). Por conta disso, sua configuração é composta predominantemente por fragmentos florestais inferiores a 50 ha (RIBEIRO et al, 2009), interpostos por áreas em processo de degradação, tendendo a se tornar ecossistemas perturbados (CORTINES;VALCARCEL, 2009;MIRANDA et al, 2011). Isto se torna um agravante por interromper a conectividade entre fragmentos e funções ecossistêmicas do seu habitat original (ARONSON;DURIGAN;BRANCALION, 2011).…”

Section: Introductionunclassified

Restauração passiva em pastagens abandonadas a partir de núcleos de vegetação na Mata Atlântica, Brasil

et al. 2019

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Os núcleos de vegetação são estruturas formadas espontaneamente por pequenos agrupamentos de indivíduos arbustivos e arbóreos, que, ao evoluírem em pastagens perturbadas, podem contribuir na sucessão ecológica. Para compreender a evolução dos processos de restauração florestal passiva em ecossistemas tropicais, depois de paralisada a pecuária extensiva, foram estudados ambientes com baixa oferta de atributos ambientais localizados na vertente norte dos morrotes isolados entre planície de inundação. Após 40 anos de abandono, os núcleos de vegetação colonizaram 20% dos ecossistemas graminoides amostrados, apresentando-se em estágio moderado de perturbação. A composição florística dos estratos superior e regenerante evidenciou que núcleos com duas ou mais espécies florestais pioneiras e com síndrome de dispersão anemocórica, como Moquiniastrum polymorphum, apresentam alta probabilidade de terem seus processos de restauração catalisados no tempo. Núcleos desenvolvidos apresentam riqueza e abundância maiores em seu estrato regenerante, além de espécies zoocóricas e não pioneiras, sugerindo interações positivas entre processos ecológicos, condição que confere sustentabilidade aos avanços da restauração florestal passiva. O aprimoramento destas informações pode contribuir para o desenvolvimento de modelos de restauração induzidos com base nos efeitos da nucleação.

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“…In the state of Rio de Janeiro, the biome covered about 97% of its total area. According to Cortines & Valcarcel (2009), until the end of the 1990's, 17% of the area of this territory still had forest cover. In some places, such as in Rio Grande do Norte, not even traces of it can be found.…”

Section: Introduction and Goalmentioning

confidence: 99%

“…Today the majority of coastal area that was covered by the Atlantic Forest is occupied by large cities, pastures and agriculture. As a result of deforestation or excessive exploitation of the forest, the Atlantic Forest biome has its areas presenting different successional stages of regeneration or recovery (Cortines & Valcarcel, 2009). There are many attacks of restoration in this biome, however the monitoring of forest restoration, merely restricted to the phytosociological monitoring of restored areas, often ignores the relationship of fauna and flora, especially the relationship between insect-plant (Galdino-da-Silva et al, 2016).…”

Section: Introduction and Goalmentioning

confidence: 99%

Population Fluctuation of Coleobrocas (Coleoptera) in Six Forest Fragments in Atlantic Forest

et al. 2019

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The objective of this work was to evaluate the forest restoration of Guapiaçu river basin in Macacu, RJ, using the families of coleobrocas as tools for environmental assessment. We analyzed the fluctuation of the families of Coleoptera: Cerambycidae, Lyctidae, Anobiidae, Bostrichidae and Curculionidae. Six sampling points were arranged along the river, five points being inferred in reforestation carried out in the basin and a point in the control area of natural regeneration the amount of Guapiaçu river. The collection period started in January 2013, and ended in December 2015. Through quali-quantitative data, there is a greater population density of sub-family Scolytinae in periods of high temperature and humidity and areas more populated by pioneer species used in forest restoration. After the end of the monitoring period, we proposed a model of environmental assessment through the frequency of occurrence of families of coleobrocas collected in forest fragments.

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Influence of pioneer-species combinations on restoration of disturbed ecosystems in the Atlantic Forest, Rio de Janeiro, Brazil

Cited by 13 publications

References 22 publications

Functional attributes change but functional richness is unchanged after fragmentation of Brazilian Atlantic forests

Functional attributes change but functional richness is unchanged after fragmentation of Brazilian Atlantic forests

Restauração passiva em pastagens abandonadas a partir de núcleos de vegetação na Mata Atlântica, Brasil

Population Fluctuation of Coleobrocas (Coleoptera) in Six Forest Fragments in Atlantic Forest

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