Effect of Different Fire Severities on Coppicing of Caatinga Vegetation in Serra Talhada, PE, Brazil

Sampaio, Everardo V. S. B.; Salcedo, I. H.; Kauffman, J. Boone

doi:10.2307/2388868

Cited by 79 publications

(65 citation statements)

References 9 publications

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“…TDF were for long known for their great capacity of recovery after burnings, since many TDF species could regenerate by sprouts (Ewel, 1980). The number of sprouts was reduced with the greater frequency and severity of fires, according to recent studies (Sampaio et al, 1993;Miller and Kauffman, 1998a,b). For example, in a TDF in Bolivia, disturbances like the removal of trees and low intensity fires increased regeneration by sprouts, but highly intense fires favored regeneration through seeds (Kennard, 2002).…”

Section: Anthropogenic Disturbances and The Use Of Firementioning

confidence: 98%

“…For example, in a TDF in Bolivia, disturbances like the removal of trees and low intensity fires increased regeneration by sprouts, but highly intense fires favored regeneration through seeds (Kennard, 2002). In a TDF in Brazil, 95% of the individuals regenerated by sprouts after cutting, but only 10 to 43% sprouted after the residue burning (Sampaio et a.., 1993) On the other hand, the disturbance can influence biotic interactions. As stated in prior studies, the anthropic disturbance negatively affects the sensitiveness of seedlings to the attack of herbivores (Hammond, 1995).…”

Section: Anthropogenic Disturbances and The Use Of Firementioning

confidence: 99%

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Abiotic factors influencing tropical dry forests regeneration

Ceccon

Huante

Rincón

2006

Braz. arch. biol. technol.

117

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Tropical dry forests represent nearly half the tropical forests in the world and are the ecosystems registering the greatest deterioration from the anthropogenic exploitation of the land. This paper presents a review on the dynamics of tropical dry forests regeneration and the main abiotic factors influencing this regeneration, such as seasonal nature, soil fertility and humidity, and natural and anthropic disturbances. The main purpose is to clearly understand an important part of TDF succession dynamics.

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Section: Anthropogenic Disturbances and The Use Of Firementioning

confidence: 98%

Section: Anthropogenic Disturbances and The Use Of Firementioning

confidence: 99%

Abiotic factors influencing tropical dry forests regeneration

Ceccon

Huante

Rincón

2006

Braz. arch. biol. technol.

117

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“…In contrast, the density of regenerating tree and shrub species was not significantly affected by burning because a subset of the original species resprouted in high densities after fire (Hooper, Legendre & Condit 2004; also reported in Australia Setterfield 2002). Burning reduces the number of species resprouting at other tropical sites Sampaio, Salcedo & Kauffman 1993). Fire severity significantly affected the recruitment of individuals originating from the seed bank.…”

Section: mentioning

confidence: 99%

Barriers to forest regeneration of deforested and abandoned land in Panama

Hooper

Legendre

Condit

2005

Journal of Applied Ecology

258

175

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Summary1. In Panama, abandoned agricultural lands that supported tropical rain forest are invaded by the exotic invasive grass Saccharum spontaneum , which precludes native forest regeneration. This study aimed to evaluate the importance of several barriers to forest regeneration and highlight mitigation opportunities. 2. We examined four barriers to natural regeneration: Saccharum competition, seed dispersal limitation, fire and soil nutrient deficiency. Tree and shrub regeneration was measured in a factorial experiment combining Saccharum cutting treatments, distances from adjacent forest and a prescribed burn to assess the first three barriers, respectively. We compared soil nutrients in Saccharum plots with those from adjacent forest. Additionally, we determined the importance of distance to remnant vegetation (large-leaved monocots, shrubs and isolated trees) on forest regeneration. 3. Fire significantly decreased plant species richness of forest regeneration. Fire inhibited the germination of most species; the effect was exacerbated by cutting the Saccharum . 4. Grass competition significantly decreased seedling growth, while soil nutrient deficiency did not affect forest regeneration. 5. Seed dispersal limitation affected density and species richness. Significantly more species (3 × ) regenerated at 10 m compared with 35 m from the forest. Mean seedling densities were, respectively, four, three and two times higher under large-leaved monocots, isolated trees and shrubs than in open Saccharum . When seed input was experimentally equalized, large-seeded species had the highest establishment rate, suggesting that if their propagules were dispersed to the site they would regenerate in high proportions. However, under natural conditions they regenerated poorly and represented the most dispersal-limited species group. 6. Synthesis and applications . Our results suggest that facilitation of natural regeneration may be a feasible, low-cost management option for restoring native forest cover to large areas. Firebreaks must be established to promote biodiversity of forest regeneration. We do not recommend Saccharum cutting or fertilization as site treatments. Shading effectively eliminates Saccharum . Planting a variety of tree species in clumps throughout the Saccharum may overcome dispersal limitations and catalyse natural regeneration. Trees that attract different frugivores are recommended, especially largeseeded forest species.

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“…Constata-se, porém, que, devido à grande extensão territorial que ocupa e os diferentes ambientes em que pode ser encontrada, a caatinga encerra uma enorme variabilidade de faciações fitogeográficas evidenciadas, principalmente, pelas diferenças fisionômicas, densidades, composição de espécies e aspectos fenoló-gicos (Sampaio, 1995;Sampaio et al, 1993;Rodal et al, 1992;Andrade-Lima, 1981;Sousa, 1979). A carência de informações sobre a vegetação de caatinga se torna muito evidente quando se procura dados relativos, por exemplo, à estrutura fitossociológica, à dinâmica de populações, aos processos de sucessão ecológi-ca e de regeneração natural dos ecossistemas aí encontrados (Araújo Filho, 1996;IBAMA, 1992).…”

Section: Introductionunclassified

Regeneração natural em um remanescente de Caatinga sob diferentes níveis de perturbação, no agreste paraibano

et al. 2001

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RESUMO -(Regeneração natural em um remanescente de Caatinga sob diferentes níveis de perturbação, no agreste paraibano) O presente trabalho foi desenvolvido em um remanescente de caatinga hipoxerófila localizado na fronteira dos Municípios de Areia e Remígio-PB, com o objetivo de estudar o comportamento da regeneração natural em ambientes com diferentes níveis de perturbação antrópica. Foram selecionados três ambientes (I, II e III), ordenados em níveis crescentes de perturbação, tendo sido plotadas 5 unidades amostrais em cada um deles. Foram estabelecidas quatro classes de tamanho para estratificação dos indivíduos a serem estudados, conforme descritas a seguir: classe 1 -indivíduos com altura de 0,10 a 0,29 m; classe 2 -indivíduos com altura de 0,30 a 1,49 m; classe 3 -indivíduos com altura de 1,5 a 3 m e classe 4 -indivíduos com altura superior a 3 m, mas que apresentavam o diâmetro na base inferior a três cm. A densidade total foi da ordem de 5000 indivíduos ha -1 , tendo sido identificadas 26 espécies arbóreas, pertencentes a 17 famílias. As famílias Euphorbiaceae e Mimosaceae detiveram aproximadamente 60% dos indivíduos amostrados. Nos ambientes I e II a espécie que apresentou maior regeneração natural foi Croton sonderianus Muell Arg., e no ambiente III, Thiloa glaucocarpa (Mart.) Eichl. A maioria dos indivíduos encontrava-se nas classes de menor tamanho, sendo que apenas o ambiente III, o mais conservado, apresentou indivíduos nas quatro classes de tamanho. Os maiores impactos da intervenção antrópica foram detectados no ambiente I, e os menores no ambiente III, refletidos a partir da riqueza florística, da dominância e da distribuição da plantas nas classes de tamanho previamente definidas.Palavras-chaves -Regeneração Natural, Ecossistema de Caatinga, Perturbação Antrópica.ABSTRACT -(Natural regeneration in a Caatinga fragment under different disturbance levels) This work was carried out on the border between the municipalities of Areia and Remígio, in the state of Paraíba, where some remnants of hypoxerophytic caatinga were encountered. The objective was to observe modes of natural regeneration in areas with different levels of anthropogenic disturbance. Three areas (I, II, III) with decreasing levels of disturbance were chosen. Five sample units from each area were chosen for plotting. Four size classes were established in order to stratify the specimens under study: class 1 -specimens ranging from 0.10 to 0.29 m in height; class 2 -specimens ranging from 0.30 to 1.49 m in height; class 3 -specimens ranging from 1.

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Effect of Different Fire Severities on Coppicing of Caatinga Vegetation in Serra Talhada, PE, Brazil

Cited by 79 publications

References 9 publications

Abiotic factors influencing tropical dry forests regeneration

Abiotic factors influencing tropical dry forests regeneration

Barriers to forest regeneration of deforested and abandoned land in Panama

Regeneração natural em um remanescente de Caatinga sob diferentes níveis de perturbação, no agreste paraibano

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