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Metadados | Descrição | Idioma |
---|---|---|
Autor(es): dc.contributor | Universidade Estadual Paulista (Unesp) | - |
Autor(es): dc.contributor | Instituto Nacional Mata Atlântica | - |
Autor(es): dc.contributor | Centro de Investigaciones sobre Desertificación (CIDE/CSIC) | - |
Autor(es): dc.creator | Zupo, Talita [UNESP] | - |
Autor(es): dc.creator | Daibes, Luis Felipe [UNESP] | - |
Autor(es): dc.creator | Pausas, Juli G. | - |
Autor(es): dc.creator | Fidelis, Alessandra [UNESP] | - |
Data de aceite: dc.date.accessioned | 2022-02-22T00:44:34Z | - |
Data de disponibilização: dc.date.available | 2022-02-22T00:44:34Z | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2021-06-25 | - |
Data de envio: dc.date.issued | 2020-12-31 | - |
Fonte completa do material: dc.identifier | http://dx.doi.org/10.1111/jvs.12968 | - |
Fonte completa do material: dc.identifier | http://hdl.handle.net/11449/205526 | - |
Fonte: dc.identifier.uri | http://educapes.capes.gov.br/handle/11449/205526 | - |
Descrição: dc.description | Aim: Fire is a natural disturbance in many ecosystems throughout the world where plant populations can persist by the resprouting of individuals and/or by recruiting from seeds. We evaluated the post-fire regeneration response for 41 coexisting species, including grasses, forbs, and shrubs, from an open Cerrado community (campo sujo) in Central Brazil. Location: The study was conducted at the Reserva Natural Serra do Tombador (RNST) in Central Brazil. The vegetation of the study area is characterized by a continuous herbaceous layer dominated by grasses and scattered shrubs, which produces fine fuel loads that can burn frequently. Methods: We examined both resprouting ability after experimental fires, accounting for bud location, and seed response to heat shocks caused by fire, where seeds were subjected to heat shocks of 100°C for one and three minutes, 200°C for one minute, and a control (untreated seeds). Results: All species were able to resprout (R+) after fire, mainly from buds located in underground structures, but also from aerial and basal buds. Seeds of most species tolerated heat shocks of 100°C for one and three minutes, but heat treatments of 200°C decreased seed viability of nearly 50% of species. Seven species, all of which had dormant seeds, showed heat-stimulated germination. In sum, 81% of the community was classified as R+PT (resprouters with heat-tolerant propagules) and 17% was R+PS (resprouters with heat-stimulated propagules). The remaining 2% (one species) was classified as R+P−, showing heat-sensitive seeds. Conclusions: Resprouting is the main post-fire regeneration strategy in Cerrado open savannas, while fire-stimulated germination, although possible, is less common in comparison to the frequency in other fire-prone ecosystems. However, in Cerrado open savannas, heat tolerance is an important trait that enables germination when favorable conditions arise. | - |
Descrição: dc.description | Fundação Grupo Boticário de Proteção à Natureza | - |
Descrição: dc.description | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | - |
Descrição: dc.description | Lab of Vegetation Ecology Instituto de Biociências Universidade Estadual Paulista (UNESP) | - |
Descrição: dc.description | Programa de Capacitação Institucional (PCI) Instituto Nacional Mata Atlântica | - |
Descrição: dc.description | Centro de Investigaciones sobre Desertificación (CIDE/CSIC) | - |
Descrição: dc.description | Lab of Vegetation Ecology Instituto de Biociências Universidade Estadual Paulista (UNESP) | - |
Descrição: dc.description | Fundação Grupo Boticário de Proteção à Natureza: 0153_2011_PR | - |
Descrição: dc.description | CNPq: 303988/2018-5 | - |
Descrição: dc.description | CNPq: 455183/2014-7 | - |
Idioma: dc.language | en | - |
Relação: dc.relation | Journal of Vegetation Science | - |
???dc.source???: dc.source | Scopus | - |
Palavras-chave: dc.subject | germination | - |
Palavras-chave: dc.subject | heat shocks | - |
Palavras-chave: dc.subject | Neotropical savanna | - |
Palavras-chave: dc.subject | post-fire resprouting | - |
Palavras-chave: dc.subject | post-fire seeding | - |
Título: dc.title | Post-fire regeneration strategies in a frequently burned Cerrado community | - |
Tipo de arquivo: dc.type | livro digital | - |
Aparece nas coleções: | Repositório Institucional - Unesp |
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