| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
|
Data corrente: |
21/01/2025 |
|
Data da última atualização: |
21/01/2025 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
GIROLDO, A. B.; SCARIOT, A. O.; FERREIRA, J. B.; MOSER, P.; LIMA, I. L. P.; HOFFMANN, W. A. |
|
Afiliação: |
A. B. GIROLDO, FEDERAL INSTITUTE OF EDUCATION, SCIENCE AND TECHNOLOGY OF CEARÁ; ALDICIR OSNI SCARIOT, CENARGEN; P. MOSER, UNIVERSITY OF THE STATE OF SANTA CATARINA; I. L. P. LIMA, LEGISLATIVE CHAMBER OF THE FEDERAL DISTRICT (CLDF); W. A. HOFFMANN, NORTH CAROLINA STATE UNIVERSITY. |
|
Título: |
An enemy's enemy is an ally: competitive indirect interactions mediate coexistence of trees, grasses, and subshrubs in neotropical savanna. |
|
Ano de publicação: |
2024 |
|
Fonte/Imprenta: |
Biotropica, v. 57, n. 1, e13399, 2024. |
|
DOI: |
https://doi.org/10.1111/btp.13399 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Savannas are complex ecosystems where multiple growth forms, including grasses, trees, and subshrubs, coexist through intricate ecological interactions. Understanding the mechanisms that promote this coexistence is key to conserving savanna biodiversity. This study investigated the effects of grass competition on the survival and growth of trees and subshrubs, as well as the interactions between these two growth forms. Using three species of trees and three species of subshrubs, we conducted a greenhouse experiment to assess how competition between trees and subshrubs is influenced by the presence of grass. We found that grass competition significantly reduced the survival of tree seedlings, while subshrubs were unaffected. When trees and subshrubs competed directly, subshrub biomass was reduced, but only in the absence of grass. Tree seedling biomass was not affected by subshrubs, but was negatively impacted by grass in the absence of subshrubs. Both root and stem biomass of trees and subshrubs were reduced by grass competition; however, this effect was mitigated when grasses, subshrubs, and trees competed simultaneously. These results indicate that when grasses, subshrubs, and trees compete together, the intensity of competition is reduced, promoting coexistence and contributing to the balance of growth forms in savanna ecosystems. While fire is an important factor in savanna dynamics, our study emphasizes the critical role of competition in maintaining this balance. Future studies should explore how fire and competition interact to further our understanding of biodiversity and ecosystem function in Neotropical savannas. MenosSavannas are complex ecosystems where multiple growth forms, including grasses, trees, and subshrubs, coexist through intricate ecological interactions. Understanding the mechanisms that promote this coexistence is key to conserving savanna biodiversity. This study investigated the effects of grass competition on the survival and growth of trees and subshrubs, as well as the interactions between these two growth forms. Using three species of trees and three species of subshrubs, we conducted a greenhouse experiment to assess how competition between trees and subshrubs is influenced by the presence of grass. We found that grass competition significantly reduced the survival of tree seedlings, while subshrubs were unaffected. When trees and subshrubs competed directly, subshrub biomass was reduced, but only in the absence of grass. Tree seedling biomass was not affected by subshrubs, but was negatively impacted by grass in the absence of subshrubs. Both root and stem biomass of trees and subshrubs were reduced by grass competition; however, this effect was mitigated when grasses, subshrubs, and trees competed simultaneously. These results indicate that when grasses, subshrubs, and trees compete together, the intensity of competition is reduced, promoting coexistence and contributing to the balance of growth forms in savanna ecosystems. While fire is an important factor in savanna dynamics, our study emphasizes the critical role of competition in maintaining this balance. Futur... Mostrar Tudo |
|
Palavras-Chave: |
Congeneric pairs; Nontransitive competition; Tree-subshrub coexistence. |
|
Thesagro: |
Cerrado. |
|
Thesaurus Nal: |
Brazil. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02446naa a2200253 a 4500
001 2171840
005 2025-01-21
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/btp.13399$2DOI
100 1 $aGIROLDO, A. B.
245 $aAn enemy's enemy is an ally$bcompetitive indirect interactions mediate coexistence of trees, grasses, and subshrubs in neotropical savanna.$h[electronic resource]
260 $c2024
520 $aSavannas are complex ecosystems where multiple growth forms, including grasses, trees, and subshrubs, coexist through intricate ecological interactions. Understanding the mechanisms that promote this coexistence is key to conserving savanna biodiversity. This study investigated the effects of grass competition on the survival and growth of trees and subshrubs, as well as the interactions between these two growth forms. Using three species of trees and three species of subshrubs, we conducted a greenhouse experiment to assess how competition between trees and subshrubs is influenced by the presence of grass. We found that grass competition significantly reduced the survival of tree seedlings, while subshrubs were unaffected. When trees and subshrubs competed directly, subshrub biomass was reduced, but only in the absence of grass. Tree seedling biomass was not affected by subshrubs, but was negatively impacted by grass in the absence of subshrubs. Both root and stem biomass of trees and subshrubs were reduced by grass competition; however, this effect was mitigated when grasses, subshrubs, and trees competed simultaneously. These results indicate that when grasses, subshrubs, and trees compete together, the intensity of competition is reduced, promoting coexistence and contributing to the balance of growth forms in savanna ecosystems. While fire is an important factor in savanna dynamics, our study emphasizes the critical role of competition in maintaining this balance. Future studies should explore how fire and competition interact to further our understanding of biodiversity and ecosystem function in Neotropical savannas.
650 $aBrazil
650 $aCerrado
653 $aCongeneric pairs
653 $aNontransitive competition
653 $aTree-subshrub coexistence
700 1 $aSCARIOT, A. O.
700 1 $aFERREIRA, J. B.
700 1 $aMOSER, P.
700 1 $aLIMA, I. L. P.
700 1 $aHOFFMANN, W. A.
773 $tBiotropica$gv. 57, n. 1, e13399, 2024.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 4 | |
| 1. |  | COSTA, T. C. e C. da; FIDALGO, E. C. C.; UZEDA, M. C.; ZARONI, M. J.; NAIME, U. J.; GUIMARAES, S. P. Um indicador de vulnerabilidade para sub-bacias hidrográficas do Estado do Rio de Janeiro. Geografia, v. 17, n. 2, p. 5-23, jul./dez. 2008.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Agrobiologia; Embrapa Milho e Sorgo; Embrapa Solos. |
|    |
| 2. | | COSTA, T. C. e C. da; UZEDA, M. C.; FIDALGO, E. C. C.; LUMBRERAS, J. F.; ZARONI, M. J.; NAIME, U. J; GUIMARÃES, S. P. Vulnerabilidade ambiental em sub-bacias hidrográficas do Estado do Rio de Janeiro por meio de integração temática da perda do solo (USLE), variáveis morfométricas e o uso/cobertura da terra. In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 13., 2007, Florianópolis. Anais... Florianópolis: INPE, 2007. p. 2493-2500.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo; Embrapa Solos. |
| |
| 3. | | COSTA, T. C. e C. da; UZEDA, M. C.; FIDALGO, E. C. C.; LUMBRERAS, J. F.; ZARONI, M. J.; NAIME, U. J.; GUIMARAES, S. P. Vulnerabilidade ambiental em sub-hidrográficas do Estado do Rio de Janeiro por meio de integração temática da perda de solo (USLE), variáveis morfométricas e o uso/cobertura da terra. In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 13., 2007, Florianópolis. São José dos Campos: INPE, 2007. p. 2493-2500.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Milho e Sorgo. |
| |
| 4. | | COSTA, T. C. e C. da; FIDALGO, E. C. C.; UZEDA, M. C.; ZARONI, M. J.; NAIME, U. J.; GUIMARÃES, S. P. Vulnerabilidade de sub-bacias hidrográficas do Estado do Rio de Janeiro. In: BERGALLO, H. de G.; FIDALGO, E. C. C.; ROCHA, C. F. D.; UZEDA, M. C.; COSTA, M. B.; ALVES, M. A. S.; VAN SLUYS, M.; SANTOS, M. A.; COSTA, T. C. e C. da; COZZOLINO, A. C. R. (Org.). Estratégias e ações para a conservação da biodiversidade no Estado do Rio de Janeiro. Rio de Janeiro: Instituto Biomas, 2009. cap. 5, p. 67-80.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Milho e Sorgo; Embrapa Solos. |
|  |
| Registros recuperados : 4 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
