Should we burn the Cerrado? Effects of fire frequency on open savanna plant communities
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1111/jvs.13159 http://hdl.handle.net/11449/246563 |
Resumo: | Aims: Tropical savanna evolved in the presence of fire, depending on it to maintain its physiognomies and biodiversity. Open ecosystems of tropical savanna burn frequently, and thus changes in fire frequency can affect their plant communities. In this study we aimed to analyze the effects of different fire frequencies on the composition, structure and post-fire regeneration of open savanna plant communities of the Cerrado. Location: Open savannas, Central Brazil (13°35–38′S and 47°45–51′W). Methods: We conducted surveys in areas with different fire frequencies (fire exclusion, burned annually and burned biennially for 6 years, from 2013). Vegetation sampling was carried out before application of fire treatments in 2017, and then 1 and 2 years after. Species cover was estimated visually and later grouped into graminoids, shrubs and forbs. Results: Evaluation of the plant communities after 6 years of fire treatment indicated that fire frequency did not affect species richness. Fire frequency did, however, promote alteration in species occurrence and abundance, resulting in three dissimilar plant communities. Regarding post-fire regeneration, annually burned plots showed consistency in species richness and growth form cover over 6 years of annually applied fire. Biennially burned plots tended to be more variable than the other treatments, with a large increase in species richness and growth form cover in the first year after fire, succeeded by a decrease in the second year. Not all species that were recruited just after fire were able to persist in the above-ground community in the second year after fire. Conclusions: Open savannas of the Cerrado are highly resilient to fire, even to annual fires, with 6 years of annual fire treatments not affecting post-fire species diversity or growth form cover. However, communities differed in species composition, which can influence their functional diversity and lead to alterations in ecosystem services. Our findings encourage long-term studies to evaluate the resilience of areas frequently burned, as well as longer fire exclusion periods. |
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Repositório Institucional da UNESP |
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Should we burn the Cerrado? Effects of fire frequency on open savanna plant communitiesannual firescommunities' dissimilarityfire exclusionfire frequencyfire resiliencepost-fire regenerationspecies richnesswoody encroachmentAims: Tropical savanna evolved in the presence of fire, depending on it to maintain its physiognomies and biodiversity. Open ecosystems of tropical savanna burn frequently, and thus changes in fire frequency can affect their plant communities. In this study we aimed to analyze the effects of different fire frequencies on the composition, structure and post-fire regeneration of open savanna plant communities of the Cerrado. Location: Open savannas, Central Brazil (13°35–38′S and 47°45–51′W). Methods: We conducted surveys in areas with different fire frequencies (fire exclusion, burned annually and burned biennially for 6 years, from 2013). Vegetation sampling was carried out before application of fire treatments in 2017, and then 1 and 2 years after. Species cover was estimated visually and later grouped into graminoids, shrubs and forbs. Results: Evaluation of the plant communities after 6 years of fire treatment indicated that fire frequency did not affect species richness. Fire frequency did, however, promote alteration in species occurrence and abundance, resulting in three dissimilar plant communities. Regarding post-fire regeneration, annually burned plots showed consistency in species richness and growth form cover over 6 years of annually applied fire. Biennially burned plots tended to be more variable than the other treatments, with a large increase in species richness and growth form cover in the first year after fire, succeeded by a decrease in the second year. Not all species that were recruited just after fire were able to persist in the above-ground community in the second year after fire. Conclusions: Open savannas of the Cerrado are highly resilient to fire, even to annual fires, with 6 years of annual fire treatments not affecting post-fire species diversity or growth form cover. However, communities differed in species composition, which can influence their functional diversity and lead to alterations in ecosystem services. Our findings encourage long-term studies to evaluate the resilience of areas frequently burned, as well as longer fire exclusion periods.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação Grupo Boticário de Proteção à NaturezaFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Lab of Vegetation Ecology Universidade Estadual Paulista (UNESP) Instituto de BiociênciasLab of Vegetation Ecology Universidade Estadual Paulista (UNESP) Instituto de BiociênciasCAPES: 001Fundação Grupo Boticário de Proteção à Natureza: 0153_2011_PRFAPESP: 2015/06743-0FAPESP: 2017/22618-7CNPq: 312689/2021-7Universidade Estadual Paulista (UNESP)Rodrigues, Cassy Anne [UNESP]Fidelis, Alessandra [UNESP]2023-07-29T12:44:22Z2023-07-29T12:44:22Z2022-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1111/jvs.13159Journal of Vegetation Science, v. 33, n. 6, 2022.1654-11031100-9233http://hdl.handle.net/11449/24656310.1111/jvs.131592-s2.0-85145105185Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Vegetation Scienceinfo:eu-repo/semantics/openAccess2023-07-29T12:44:22Zoai:repositorio.unesp.br:11449/246563Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T12:44:22Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Should we burn the Cerrado? Effects of fire frequency on open savanna plant communities |
title |
Should we burn the Cerrado? Effects of fire frequency on open savanna plant communities |
spellingShingle |
Should we burn the Cerrado? Effects of fire frequency on open savanna plant communities Rodrigues, Cassy Anne [UNESP] annual fires communities' dissimilarity fire exclusion fire frequency fire resilience post-fire regeneration species richness woody encroachment |
title_short |
Should we burn the Cerrado? Effects of fire frequency on open savanna plant communities |
title_full |
Should we burn the Cerrado? Effects of fire frequency on open savanna plant communities |
title_fullStr |
Should we burn the Cerrado? Effects of fire frequency on open savanna plant communities |
title_full_unstemmed |
Should we burn the Cerrado? Effects of fire frequency on open savanna plant communities |
title_sort |
Should we burn the Cerrado? Effects of fire frequency on open savanna plant communities |
author |
Rodrigues, Cassy Anne [UNESP] |
author_facet |
Rodrigues, Cassy Anne [UNESP] Fidelis, Alessandra [UNESP] |
author_role |
author |
author2 |
Fidelis, Alessandra [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Rodrigues, Cassy Anne [UNESP] Fidelis, Alessandra [UNESP] |
dc.subject.por.fl_str_mv |
annual fires communities' dissimilarity fire exclusion fire frequency fire resilience post-fire regeneration species richness woody encroachment |
topic |
annual fires communities' dissimilarity fire exclusion fire frequency fire resilience post-fire regeneration species richness woody encroachment |
description |
Aims: Tropical savanna evolved in the presence of fire, depending on it to maintain its physiognomies and biodiversity. Open ecosystems of tropical savanna burn frequently, and thus changes in fire frequency can affect their plant communities. In this study we aimed to analyze the effects of different fire frequencies on the composition, structure and post-fire regeneration of open savanna plant communities of the Cerrado. Location: Open savannas, Central Brazil (13°35–38′S and 47°45–51′W). Methods: We conducted surveys in areas with different fire frequencies (fire exclusion, burned annually and burned biennially for 6 years, from 2013). Vegetation sampling was carried out before application of fire treatments in 2017, and then 1 and 2 years after. Species cover was estimated visually and later grouped into graminoids, shrubs and forbs. Results: Evaluation of the plant communities after 6 years of fire treatment indicated that fire frequency did not affect species richness. Fire frequency did, however, promote alteration in species occurrence and abundance, resulting in three dissimilar plant communities. Regarding post-fire regeneration, annually burned plots showed consistency in species richness and growth form cover over 6 years of annually applied fire. Biennially burned plots tended to be more variable than the other treatments, with a large increase in species richness and growth form cover in the first year after fire, succeeded by a decrease in the second year. Not all species that were recruited just after fire were able to persist in the above-ground community in the second year after fire. Conclusions: Open savannas of the Cerrado are highly resilient to fire, even to annual fires, with 6 years of annual fire treatments not affecting post-fire species diversity or growth form cover. However, communities differed in species composition, which can influence their functional diversity and lead to alterations in ecosystem services. Our findings encourage long-term studies to evaluate the resilience of areas frequently burned, as well as longer fire exclusion periods. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-11-01 2023-07-29T12:44:22Z 2023-07-29T12:44:22Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1111/jvs.13159 Journal of Vegetation Science, v. 33, n. 6, 2022. 1654-1103 1100-9233 http://hdl.handle.net/11449/246563 10.1111/jvs.13159 2-s2.0-85145105185 |
url |
http://dx.doi.org/10.1111/jvs.13159 http://hdl.handle.net/11449/246563 |
identifier_str_mv |
Journal of Vegetation Science, v. 33, n. 6, 2022. 1654-1103 1100-9233 10.1111/jvs.13159 2-s2.0-85145105185 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Vegetation Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1803649589160443904 |