Fire favours expansion of bamboo-dominated forests in the south-west Amazon

Smith, Maira; Nelson, Bruce Walker

Artigo

Fire favours expansion of bamboo-dominated forests in the south-west Amazon

Forests dominated by semi-scandent woody bamboos of the genus Guadua cover about 165 000 km2 of the south-west Amazon. Because many woody bamboo species are favoured by disturbance some authors have inferred this landscape to be a consequence of indigenous or natural disturbance. As seen in satellit...

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Autor principal:	Smith, Maira
Outros Autores:	Nelson, Bruce Walker
Grau:	Artigo
Idioma:	English
Publicado em:	Journal of Tropical Ecology 2020
Assuntos:	Bamboo Basal Area Clearcutting Dominance Environmental Disturbance Forest Fires Phytomass Population Density Amazonia Bambusa Dicotyledoneae Guadua Phyllostachys Acuta
Acesso em linha:	https://repositorio.inpa.gov.br/handle/1/18228

id	oai:repositorio:1-18228
recordtype	dspace
spelling	oai:repositorio:1-18228 Fire favours expansion of bamboo-dominated forests in the south-west Amazon Smith, Maira Nelson, Bruce Walker Bamboo Basal Area Clearcutting Dominance Environmental Disturbance Forest Fires Phytomass Population Density Amazonia Bambusa Dicotyledoneae Guadua Phyllostachys Acuta Forests dominated by semi-scandent woody bamboos of the genus Guadua cover about 165 000 km2 of the south-west Amazon. Because many woody bamboo species are favoured by disturbance some authors have inferred this landscape to be a consequence of indigenous or natural disturbance. As seen in satellite images, the rounded edges of some bamboo-dominated forests indicate expansion into surrounding forest. These edges are unrelated to topography and resemble the borders of ground fires in unlogged Amazon forests, suggesting that bamboo may have been favoured by past fires. We studied the recovery of Guadua sarcocarpa and its competitors in the face of simulated fire by cutting all plant stems at ground level in ten 100-m2 plots, compared with ten control plots, and by burning a 2500-m2 plot. In the clear-cuts, bamboos recovered more successfully than did palms and dicots, by two measures: biomass accumulated and per cent recovery of pre-disturbance biomass. Resprouted bamboo attained higher stem densities than in control sites at 11 mo. In the burn plot, bamboo basal area recovered to pre-burn levels after 2 y and approached that of an undisturbed control area after 3 y. Though other natural disturbances are relevant, we conclude that forest fires should favour the spread and dominance of Guadua species in the south-west Amazon. © 2010 Cambridge University Press. 2020-06-15T21:52:49Z 2020-06-15T21:52:49Z 2011 Artigo https://repositorio.inpa.gov.br/handle/1/18228 10.1017/S026646741000057X en Volume 27, Número 1, Pags. 59-64 Restrito Journal of Tropical Ecology
institution	Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection	INPA-RI
language	English
topic	Bamboo Basal Area Clearcutting Dominance Environmental Disturbance Forest Fires Phytomass Population Density Amazonia Bambusa Dicotyledoneae Guadua Phyllostachys Acuta
spellingShingle	Bamboo Basal Area Clearcutting Dominance Environmental Disturbance Forest Fires Phytomass Population Density Amazonia Bambusa Dicotyledoneae Guadua Phyllostachys Acuta Smith, Maira Fire favours expansion of bamboo-dominated forests in the south-west Amazon
topic_facet	Bamboo Basal Area Clearcutting Dominance Environmental Disturbance Forest Fires Phytomass Population Density Amazonia Bambusa Dicotyledoneae Guadua Phyllostachys Acuta
description	Forests dominated by semi-scandent woody bamboos of the genus Guadua cover about 165 000 km2 of the south-west Amazon. Because many woody bamboo species are favoured by disturbance some authors have inferred this landscape to be a consequence of indigenous or natural disturbance. As seen in satellite images, the rounded edges of some bamboo-dominated forests indicate expansion into surrounding forest. These edges are unrelated to topography and resemble the borders of ground fires in unlogged Amazon forests, suggesting that bamboo may have been favoured by past fires. We studied the recovery of Guadua sarcocarpa and its competitors in the face of simulated fire by cutting all plant stems at ground level in ten 100-m2 plots, compared with ten control plots, and by burning a 2500-m2 plot. In the clear-cuts, bamboos recovered more successfully than did palms and dicots, by two measures: biomass accumulated and per cent recovery of pre-disturbance biomass. Resprouted bamboo attained higher stem densities than in control sites at 11 mo. In the burn plot, bamboo basal area recovered to pre-burn levels after 2 y and approached that of an undisturbed control area after 3 y. Though other natural disturbances are relevant, we conclude that forest fires should favour the spread and dominance of Guadua species in the south-west Amazon. © 2010 Cambridge University Press.
format	Artigo
author	Smith, Maira
author2	Nelson, Bruce Walker
author2Str	Nelson, Bruce Walker
title	Fire favours expansion of bamboo-dominated forests in the south-west Amazon
title_short	Fire favours expansion of bamboo-dominated forests in the south-west Amazon
title_full	Fire favours expansion of bamboo-dominated forests in the south-west Amazon
title_fullStr	Fire favours expansion of bamboo-dominated forests in the south-west Amazon
title_full_unstemmed	Fire favours expansion of bamboo-dominated forests in the south-west Amazon
title_sort	fire favours expansion of bamboo-dominated forests in the south-west amazon
publisher	Journal of Tropical Ecology
publishDate	2020
url	https://repositorio.inpa.gov.br/handle/1/18228
_version_	1787141783953604608
score	11.653393

Fire favours expansion of bamboo-dominated forests in the south-west Amazon

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