Reducing Wildfire Impacts Through Long Term Prescribed Fire Management: a North Australian Case Study
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Biodiversidade Brasileira |
Texto Completo: | https://revistaeletronica.icmbio.gov.br/BioBR/article/view/1038 |
Resumo: | This study aims to assess changes in a regional fire regime and commensurate environmental benefits associated with over a decade of active fire management. Given the recent history of (1) post-colonial cessation of traditional indigenous fire management and, consequently (2) fire regimes becoming dominated by frequent and extensive late dry season wildfire, being implicated in (3) ongoing collapse of biodiversity values in Australia’s fire-prone northern savannas, regional conservation-based fire management programs now typically aim to mitigate wildfire through the implementation of strategic prescribed burning during the cooler early dry season. Many fire management programs are now resourced through participation in a nationally legislated emissions abatement initiative. However, it remains unclear the extent such environmental concerns are being addressed by these renewed fire management efforts. Utilising a long term fine-scale spatial fire history covering the western Arnhem Land region of northern Australia, where since 2006 fire management has been resourced through contractual agreements to abate emissions, we document trends in common landscape scale fire metrics and assess effects on measures of defined ecological thresholds of concern. Although overall area burnt did not decrease significantly over the 12-year period, the regional fire regime transitioned from late dry season, wildfire-dominated to being characterised with a majority fires occurring as small early dry season prescribed burns. Most ecological metrics improved, with 40% of those assessed attaining desired threshold levels, one exception being thresholds describing the maintenance of longer-unburnt habitat. While a decade of continuously resourced fire management could be considered long term, these results indicate that, given the temporal scales of many biotic requirements regarding fire, commitments to resourcing fire management must remain ongoing if significant environmental benefits are to be realised. This can be achieved through utilisation of carbon market-based mechanisms. |
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Reducing Wildfire Impacts Through Long Term Prescribed Fire Management: a North Australian Case StudyReducing Wildfire Impacts Through Long Term Prescribed Fire Management: a North Australian Case StudyThis study aims to assess changes in a regional fire regime and commensurate environmental benefits associated with over a decade of active fire management. Given the recent history of (1) post-colonial cessation of traditional indigenous fire management and, consequently (2) fire regimes becoming dominated by frequent and extensive late dry season wildfire, being implicated in (3) ongoing collapse of biodiversity values in Australia’s fire-prone northern savannas, regional conservation-based fire management programs now typically aim to mitigate wildfire through the implementation of strategic prescribed burning during the cooler early dry season. Many fire management programs are now resourced through participation in a nationally legislated emissions abatement initiative. However, it remains unclear the extent such environmental concerns are being addressed by these renewed fire management efforts. Utilising a long term fine-scale spatial fire history covering the western Arnhem Land region of northern Australia, where since 2006 fire management has been resourced through contractual agreements to abate emissions, we document trends in common landscape scale fire metrics and assess effects on measures of defined ecological thresholds of concern. Although overall area burnt did not decrease significantly over the 12-year period, the regional fire regime transitioned from late dry season, wildfire-dominated to being characterised with a majority fires occurring as small early dry season prescribed burns. Most ecological metrics improved, with 40% of those assessed attaining desired threshold levels, one exception being thresholds describing the maintenance of longer-unburnt habitat. While a decade of continuously resourced fire management could be considered long term, these results indicate that, given the temporal scales of many biotic requirements regarding fire, commitments to resourcing fire management must remain ongoing if significant environmental benefits are to be realised. This can be achieved through utilisation of carbon market-based mechanisms.This study aims to assess changes in a regional fire regime and commensurate environmental benefits associated with over a decade of active fire management. Given the recent history of (1) post-colonial cessation of traditional indigenous fire management and, consequently (2) fire regimes becoming dominated by frequent and extensive late dry season wildfire, being implicated in (3) ongoing collapse of biodiversity values in Australia’s fire-prone northern savannas, regional conservation-based fire management programs now typically aim to mitigate wildfire through the implementation of strategic prescribed burning during the cooler early dry season. Many fire management programs are now resourced through participation in a nationally legislated emissions abatement initiative. However, it remains unclear the extent such environmental concerns are being addressed by these renewed fire management efforts. Utilising a long term fine-scale spatial fire history covering the western Arnhem Land region of northern Australia, where since 2006 fire management has been resourced through contractual agreements to abate emissions, we document trends in common landscape scale fire metrics and assess effects on measures of defined ecological thresholds of concern. Although overall area burnt did not decrease significantly over the 12-year period, the regional fire regime transitioned from late dry season, wildfire-dominated to being characterised with a majority fires occurring as small early dry season prescribed burns. Most ecological metrics improved, with 40% of those assessed attaining desired threshold levels, one exception being thresholds describing the maintenance of longer-unburnt habitat. While a decade of continuously resourced fire management could be considered long term, these results indicate that, given the temporal scales of many biotic requirements regarding fire, commitments to resourcing fire management must remain ongoing if significant environmental benefits are to be realised. This can be achieved through utilisation of carbon market-based mechanisms.Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio)2019-11-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistaeletronica.icmbio.gov.br/BioBR/article/view/103810.37002/biodiversidadebrasileira.v9i1.1038Biodiversidade Brasileira ; v. 9 n. 1 (2019): Wildfire Conference: Resumos; 119Biodiversidade Brasileira ; Vol. 9 No. 1 (2019): Wildfire Conference: Resumos; 119Biodiversidade Brasileira ; Vol. 9 Núm. 1 (2019): Wildfire Conference: Resumos; 1192236-288610.37002/biodiversidadebrasileira.v9i1reponame:Biodiversidade Brasileirainstname:Instituto Chico Mendes de Conservação da Biodiversidade (ICMBIO)instacron:ICMBIOenghttps://revistaeletronica.icmbio.gov.br/BioBR/article/view/1038/764Copyright (c) 2021 Biodiversidade Brasileira - BioBrasilhttps://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessEvans, Jay DavidRussell-Smith, Jeremy2023-05-09T12:56:02Zoai:revistaeletronica.icmbio.gov.br:article/1038Revistahttps://revistaeletronica.icmbio.gov.br/BioBRPUBhttps://revistaeletronica.icmbio.gov.br/BioBR/oaifernanda.oliveto@icmbio.gov.br || katia.ribeiro@icmbio.gov.br2236-28862236-2886opendoar:2023-05-09T12:56:02Biodiversidade Brasileira - Instituto Chico Mendes de Conservação da Biodiversidade (ICMBIO)false |
dc.title.none.fl_str_mv |
Reducing Wildfire Impacts Through Long Term Prescribed Fire Management: a North Australian Case Study Reducing Wildfire Impacts Through Long Term Prescribed Fire Management: a North Australian Case Study |
title |
Reducing Wildfire Impacts Through Long Term Prescribed Fire Management: a North Australian Case Study |
spellingShingle |
Reducing Wildfire Impacts Through Long Term Prescribed Fire Management: a North Australian Case Study Evans, Jay David |
title_short |
Reducing Wildfire Impacts Through Long Term Prescribed Fire Management: a North Australian Case Study |
title_full |
Reducing Wildfire Impacts Through Long Term Prescribed Fire Management: a North Australian Case Study |
title_fullStr |
Reducing Wildfire Impacts Through Long Term Prescribed Fire Management: a North Australian Case Study |
title_full_unstemmed |
Reducing Wildfire Impacts Through Long Term Prescribed Fire Management: a North Australian Case Study |
title_sort |
Reducing Wildfire Impacts Through Long Term Prescribed Fire Management: a North Australian Case Study |
author |
Evans, Jay David |
author_facet |
Evans, Jay David Russell-Smith, Jeremy |
author_role |
author |
author2 |
Russell-Smith, Jeremy |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Evans, Jay David Russell-Smith, Jeremy |
description |
This study aims to assess changes in a regional fire regime and commensurate environmental benefits associated with over a decade of active fire management. Given the recent history of (1) post-colonial cessation of traditional indigenous fire management and, consequently (2) fire regimes becoming dominated by frequent and extensive late dry season wildfire, being implicated in (3) ongoing collapse of biodiversity values in Australia’s fire-prone northern savannas, regional conservation-based fire management programs now typically aim to mitigate wildfire through the implementation of strategic prescribed burning during the cooler early dry season. Many fire management programs are now resourced through participation in a nationally legislated emissions abatement initiative. However, it remains unclear the extent such environmental concerns are being addressed by these renewed fire management efforts. Utilising a long term fine-scale spatial fire history covering the western Arnhem Land region of northern Australia, where since 2006 fire management has been resourced through contractual agreements to abate emissions, we document trends in common landscape scale fire metrics and assess effects on measures of defined ecological thresholds of concern. Although overall area burnt did not decrease significantly over the 12-year period, the regional fire regime transitioned from late dry season, wildfire-dominated to being characterised with a majority fires occurring as small early dry season prescribed burns. Most ecological metrics improved, with 40% of those assessed attaining desired threshold levels, one exception being thresholds describing the maintenance of longer-unburnt habitat. While a decade of continuously resourced fire management could be considered long term, these results indicate that, given the temporal scales of many biotic requirements regarding fire, commitments to resourcing fire management must remain ongoing if significant environmental benefits are to be realised. This can be achieved through utilisation of carbon market-based mechanisms. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-11-15 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistaeletronica.icmbio.gov.br/BioBR/article/view/1038 10.37002/biodiversidadebrasileira.v9i1.1038 |
url |
https://revistaeletronica.icmbio.gov.br/BioBR/article/view/1038 |
identifier_str_mv |
10.37002/biodiversidadebrasileira.v9i1.1038 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistaeletronica.icmbio.gov.br/BioBR/article/view/1038/764 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Biodiversidade Brasileira - BioBrasil https://creativecommons.org/licenses/by-nc-nd/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Biodiversidade Brasileira - BioBrasil https://creativecommons.org/licenses/by-nc-nd/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio) |
publisher.none.fl_str_mv |
Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio) |
dc.source.none.fl_str_mv |
Biodiversidade Brasileira ; v. 9 n. 1 (2019): Wildfire Conference: Resumos; 119 Biodiversidade Brasileira ; Vol. 9 No. 1 (2019): Wildfire Conference: Resumos; 119 Biodiversidade Brasileira ; Vol. 9 Núm. 1 (2019): Wildfire Conference: Resumos; 119 2236-2886 10.37002/biodiversidadebrasileira.v9i1 reponame:Biodiversidade Brasileira instname:Instituto Chico Mendes de Conservação da Biodiversidade (ICMBIO) instacron:ICMBIO |
instname_str |
Instituto Chico Mendes de Conservação da Biodiversidade (ICMBIO) |
instacron_str |
ICMBIO |
institution |
ICMBIO |
reponame_str |
Biodiversidade Brasileira |
collection |
Biodiversidade Brasileira |
repository.name.fl_str_mv |
Biodiversidade Brasileira - Instituto Chico Mendes de Conservação da Biodiversidade (ICMBIO) |
repository.mail.fl_str_mv |
fernanda.oliveto@icmbio.gov.br || katia.ribeiro@icmbio.gov.br |
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1797042391463493632 |