Post-fire regeneration in seasonally dry tropical forest fragments in southeastern Brazil

Post-fire regeneration in seasonally dry tropical forest fragments in southeastern Brazil

Seasonally dry tropical forest is one of the highly threatened biome. However, studies on the effect of fire on these tree communities are still scarce. In this context, a floristic and structural survey in three forest areas in the southeast of Brazil that were affected by fire between 14 and 25 ye...

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Published in:Anais da Academia Brasileira de Ciências Vol. 89; no. 4; pp. 2687 - 2695
Main Authors: Costa, Mayke B, Menezes, Luis Fernando T DE, Nascimento, Marcelo T
Format: Journal Article
Language:English
Published: Brazil Academia Brasileira de Ciências 01-10-2017
Subjects:
Atlantic forest
Biodiversity
Brazil
fire ecology
Fires
forest structure
forest succession
Forests
MULTIDISCIPLINARY SCIENCES
post-fire recovery
Regeneration
Tropical Climate
forest structure
Atlantic forest
forest succession
post-fire recovery
fire ecology
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Summary:Seasonally dry tropical forest is one of the highly threatened biome. However, studies on the effect of fire on these tree communities are still scarce. In this context, a floristic and structural survey in three forest areas in the southeast of Brazil that were affected by fire between 14 and 25 years ago was performed with the objective of evaluating post-fire regeneration. In each site, five systematically placed plots (25 m x 25 m each) were established. The more recently burnt site had significantly lower values of richness and diversity than the other two sites. However, the sites did not differ in density and basal area. Annona dolabripetala, Astronium concinnum, Joannesia princeps and Polyandrococos caudescens were within the 10 most important species for the three sites. Comparing these data with adjacent mature forests, the results indicated differences both in structural and floristic aspects, suggesting that the time after fire was not sufficient for recuperation of these areas. The recovery process indicate at least 190 years for areas return to basal area values close to those observed in mature forests nearby.
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ISSN:0001-3765
1678-2690
1678-2690
DOI:10.1590/0001-3765201720160728