Dendrochronological records of a pioneer tree species containing ENSO signal in the Pantanal, Brazil
The Pantanal is subjected to a monomodal and predictable flood pulse of low amplitude which is the main driver of ecological processes and patterns of biodiversity in one of the largest wetlands in the world. Nevertheless, little is known about how the plant communities of this wetland respond to pr...
| Autor principal: | Fortes, Caroline Felfili |
|---|---|
| Outros Autores: | Nunes da Cunha, C., Rosa, Sejana Artiaga, Paixão, Eliana Celestino, Junk, Wolfgang Johannes, Schöngart, Jochen |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Revista Brasileira de Botanica
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/15301 |
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oai:repositorio:1-15301 |
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oai:repositorio:1-15301 Dendrochronological records of a pioneer tree species containing ENSO signal in the Pantanal, Brazil Fortes, Caroline Felfili Nunes da Cunha, C. Rosa, Sejana Artiaga Paixão, Eliana Celestino Junk, Wolfgang Johannes Schöngart, Jochen The Pantanal is subjected to a monomodal and predictable flood pulse of low amplitude which is the main driver of ecological processes and patterns of biodiversity in one of the largest wetlands in the world. Nevertheless, little is known about how the plant communities of this wetland respond to predicted climate changes. In this paper, we used tree-ring analyses of Vochysia divergens Pohl (Vochysiaceae), a light-demanding pioneer species that occurs in periodically or short-term flooded areas in the Cerrado and Pantanal. We evaluated the influence of precipitation and water level on the growth rates of this species, where it occurs, to determine how local climatic variables (precipitation and water level) influence tree growth and how a large-scale climatic driver in the tropical eastern Pacific (El Niño events) could affect both tree growth and local climate in the northern region of the Pantanal. The indexed tree-ring chronology of eight individuals had a significant relationship with annual precipitation (r = 0.22). Interannual variations of the water level did not affect tree growth. Sea surface temperature anomalies of the El Niño 1 + 2 region lead to decreased precipitation in the northern region of the Pantanal, resulting in decreased diameter increments of V. divergens. Our results demonstrated the dendrochronological potential of V. divergens for analyzing climate–growth relationships for developing climate-sensitive proxies for reconstructing past climatic conditions. © 2018, Botanical Society of Sao Paulo. 2020-05-07T16:33:57Z 2020-05-07T16:33:57Z 2018 Artigo https://repositorio.inpa.gov.br/handle/1/15301 10.1007/s40415-017-0434-8 en Volume 41, Número 1, Pags. 167-174 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Revista Brasileira de Botanica |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| description |
The Pantanal is subjected to a monomodal and predictable flood pulse of low amplitude which is the main driver of ecological processes and patterns of biodiversity in one of the largest wetlands in the world. Nevertheless, little is known about how the plant communities of this wetland respond to predicted climate changes. In this paper, we used tree-ring analyses of Vochysia divergens Pohl (Vochysiaceae), a light-demanding pioneer species that occurs in periodically or short-term flooded areas in the Cerrado and Pantanal. We evaluated the influence of precipitation and water level on the growth rates of this species, where it occurs, to determine how local climatic variables (precipitation and water level) influence tree growth and how a large-scale climatic driver in the tropical eastern Pacific (El Niño events) could affect both tree growth and local climate in the northern region of the Pantanal. The indexed tree-ring chronology of eight individuals had a significant relationship with annual precipitation (r = 0.22). Interannual variations of the water level did not affect tree growth. Sea surface temperature anomalies of the El Niño 1 + 2 region lead to decreased precipitation in the northern region of the Pantanal, resulting in decreased diameter increments of V. divergens. Our results demonstrated the dendrochronological potential of V. divergens for analyzing climate–growth relationships for developing climate-sensitive proxies for reconstructing past climatic conditions. © 2018, Botanical Society of Sao Paulo. |
| format |
Artigo |
| author |
Fortes, Caroline Felfili |
| spellingShingle |
Fortes, Caroline Felfili Dendrochronological records of a pioneer tree species containing ENSO signal in the Pantanal, Brazil |
| author2 |
Nunes da Cunha, C. Rosa, Sejana Artiaga Paixão, Eliana Celestino Junk, Wolfgang Johannes Schöngart, Jochen |
| author2Str |
Nunes da Cunha, C. Rosa, Sejana Artiaga Paixão, Eliana Celestino Junk, Wolfgang Johannes Schöngart, Jochen |
| title |
Dendrochronological records of a pioneer tree species containing ENSO signal in the Pantanal, Brazil |
| title_short |
Dendrochronological records of a pioneer tree species containing ENSO signal in the Pantanal, Brazil |
| title_full |
Dendrochronological records of a pioneer tree species containing ENSO signal in the Pantanal, Brazil |
| title_fullStr |
Dendrochronological records of a pioneer tree species containing ENSO signal in the Pantanal, Brazil |
| title_full_unstemmed |
Dendrochronological records of a pioneer tree species containing ENSO signal in the Pantanal, Brazil |
| title_sort |
dendrochronological records of a pioneer tree species containing enso signal in the pantanal, brazil |
| publisher |
Revista Brasileira de Botanica |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/15301 |
| _version_ |
1787144105377136640 |
| score |
11.755432 |