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Fire-mediated dieback and compositional cascade in an Amazonian forest.

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Fire-mediated dieback and compositional cascade in an Amazonian forest. / Barlow, Jos; Peres, C. A.

In: Philosophical Transactions of the Royal Society B: Biological Sciences, Vol. 363, No. 1498, 27.05.2008, p. 1787-1794.

Research output: Contribution to journalJournal article

Harvard

Barlow, J & Peres, CA 2008, 'Fire-mediated dieback and compositional cascade in an Amazonian forest.', Philosophical Transactions of the Royal Society B: Biological Sciences, vol. 363, no. 1498, pp. 1787-1794. https://doi.org/10.1098/rstb.2007.0013

APA

Barlow, J., & Peres, C. A. (2008). Fire-mediated dieback and compositional cascade in an Amazonian forest. Philosophical Transactions of the Royal Society B: Biological Sciences, 363(1498), 1787-1794. https://doi.org/10.1098/rstb.2007.0013

Vancouver

Barlow J, Peres CA. Fire-mediated dieback and compositional cascade in an Amazonian forest. Philosophical Transactions of the Royal Society B: Biological Sciences. 2008 May 27;363(1498):1787-1794. https://doi.org/10.1098/rstb.2007.0013

Author

Barlow, Jos ; Peres, C. A. / Fire-mediated dieback and compositional cascade in an Amazonian forest. In: Philosophical Transactions of the Royal Society B: Biological Sciences. 2008 ; Vol. 363, No. 1498. pp. 1787-1794.

Bibtex

@article{8e5149e84434489eb1dad45bd8408904,
title = "Fire-mediated dieback and compositional cascade in an Amazonian forest.",
abstract = "The only fully coupled land–atmosphere global climate model predicts a widespread dieback of Amazonian forest cover through reduced precipitation. Although these predictions are controversial, the structural and compositional resilience of Amazonian forests may also have been overestimated, as current vegetation models fail to consider the potential role of fire in the degradation of forest ecosystems. We examine forest structure and composition in the Arapiuns River basin in the central Brazilian Amazon, evaluating post-fire forest recovery and the consequences of recurrent fires for the patterns of dominance of tree species. We surveyed tree plots in unburned and once-burned forests examined 1, 3 and 9 years after an unprecedented fire event, in twice-burned forests examined 3 and 9 years after fire and in thrice-burned forests examined 5 years after the most recent fire event. The number of trees recorded in unburned primary forest control plots was stable over time. However, in both once- and twice-burned forest plots, there was a marked recruitment into the 10–20cm diameter at breast height tree size classes between 3 and 9 years post-fire. Considering tree assemblage composition 9 years after the first fire contact, we observed (i) a clear pattern of community turnover among small trees and the most abundant shrubs and saplings, and (ii) that species that were common in any of the four burn treatments (unburned, once-, twice- and thrice-burned) were often rare or entirely absent in other burn treatments. We conclude that episodic wildfires can lead to drastic changes in forest structure and composition, with cascading shifts in forest composition following each additional fire event. Finally, we use these results to evaluate the validity of the savannization paradigm.",
keywords = "savannization, tropical forests, tree mortality, resilience, climate change",
author = "Jos Barlow and Peres, {C. A.}",
year = "2008",
month = may
day = "27",
doi = "10.1098/rstb.2007.0013",
language = "English",
volume = "363",
pages = "1787--1794",
journal = "Philosophical Transactions of the Royal Society B: Biological Sciences",
issn = "0962-8436",
publisher = "Royal Society",
number = "1498",

}

RIS

TY - JOUR

T1 - Fire-mediated dieback and compositional cascade in an Amazonian forest.

AU - Barlow, Jos

AU - Peres, C. A.

PY - 2008/5/27

Y1 - 2008/5/27

N2 - The only fully coupled land–atmosphere global climate model predicts a widespread dieback of Amazonian forest cover through reduced precipitation. Although these predictions are controversial, the structural and compositional resilience of Amazonian forests may also have been overestimated, as current vegetation models fail to consider the potential role of fire in the degradation of forest ecosystems. We examine forest structure and composition in the Arapiuns River basin in the central Brazilian Amazon, evaluating post-fire forest recovery and the consequences of recurrent fires for the patterns of dominance of tree species. We surveyed tree plots in unburned and once-burned forests examined 1, 3 and 9 years after an unprecedented fire event, in twice-burned forests examined 3 and 9 years after fire and in thrice-burned forests examined 5 years after the most recent fire event. The number of trees recorded in unburned primary forest control plots was stable over time. However, in both once- and twice-burned forest plots, there was a marked recruitment into the 10–20cm diameter at breast height tree size classes between 3 and 9 years post-fire. Considering tree assemblage composition 9 years after the first fire contact, we observed (i) a clear pattern of community turnover among small trees and the most abundant shrubs and saplings, and (ii) that species that were common in any of the four burn treatments (unburned, once-, twice- and thrice-burned) were often rare or entirely absent in other burn treatments. We conclude that episodic wildfires can lead to drastic changes in forest structure and composition, with cascading shifts in forest composition following each additional fire event. Finally, we use these results to evaluate the validity of the savannization paradigm.

AB - The only fully coupled land–atmosphere global climate model predicts a widespread dieback of Amazonian forest cover through reduced precipitation. Although these predictions are controversial, the structural and compositional resilience of Amazonian forests may also have been overestimated, as current vegetation models fail to consider the potential role of fire in the degradation of forest ecosystems. We examine forest structure and composition in the Arapiuns River basin in the central Brazilian Amazon, evaluating post-fire forest recovery and the consequences of recurrent fires for the patterns of dominance of tree species. We surveyed tree plots in unburned and once-burned forests examined 1, 3 and 9 years after an unprecedented fire event, in twice-burned forests examined 3 and 9 years after fire and in thrice-burned forests examined 5 years after the most recent fire event. The number of trees recorded in unburned primary forest control plots was stable over time. However, in both once- and twice-burned forest plots, there was a marked recruitment into the 10–20cm diameter at breast height tree size classes between 3 and 9 years post-fire. Considering tree assemblage composition 9 years after the first fire contact, we observed (i) a clear pattern of community turnover among small trees and the most abundant shrubs and saplings, and (ii) that species that were common in any of the four burn treatments (unburned, once-, twice- and thrice-burned) were often rare or entirely absent in other burn treatments. We conclude that episodic wildfires can lead to drastic changes in forest structure and composition, with cascading shifts in forest composition following each additional fire event. Finally, we use these results to evaluate the validity of the savannization paradigm.

KW - savannization

KW - tropical forests

KW - tree mortality

KW - resilience

KW - climate change

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U2 - 10.1098/rstb.2007.0013

DO - 10.1098/rstb.2007.0013

M3 - Journal article

VL - 363

SP - 1787

EP - 1794

JO - Philosophical Transactions of the Royal Society B: Biological Sciences

JF - Philosophical Transactions of the Royal Society B: Biological Sciences

SN - 0962-8436

IS - 1498

ER -