Hydraulic traits explain differential responses of Amazonian forests to the 2015 El Niño-induced drought
Reducing uncertainties in the response of tropical forests to global change requires understanding how intra- and interannual climatic variability selects for different species, community functional composition and ecosystem functioning, so that the response to climatic events of differing frequency...
| Autor principal: | Barros, Fernanda de Vasconcellos |
|---|---|
| Outros Autores: | Bittencourt, Paulo R.L., Brum, Mauro, Restrepo-Coupé, Natalia, Pereira, Larissa de Souza, Teodoro, Grazielle Sales, Saleska, Scott Reid, Borma, Laura de Simone, Christoffersen, Bradley O., Penha, Deliane Vieira, Alves, Luciana Ferreira, Lima, Adriano José Nogueira, Carneiro, Vilany Matilla Colares, Gentine, Pierre, Lee, Jung-eun, Aragao, L. E.O.C., Ivanov, Valeriy Yu, Leal, Leila S.M., Araüjo, Alessandro Carioca de, Oliveira, Rafael S. |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
New Phytologist
2020
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| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/15508 |
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oai:repositorio:1-15508 |
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oai:repositorio:1-15508 Hydraulic traits explain differential responses of Amazonian forests to the 2015 El Niño-induced drought Barros, Fernanda de Vasconcellos Bittencourt, Paulo R.L. Brum, Mauro Restrepo-Coupé, Natalia Pereira, Larissa de Souza Teodoro, Grazielle Sales Saleska, Scott Reid Borma, Laura de Simone Christoffersen, Bradley O. Penha, Deliane Vieira Alves, Luciana Ferreira Lima, Adriano José Nogueira Carneiro, Vilany Matilla Colares Gentine, Pierre Lee, Jung-eun Aragao, L. E.O.C. Ivanov, Valeriy Yu Leal, Leila S.M. Araüjo, Alessandro Carioca de Oliveira, Rafael S. Drought Stress Ecosystem Function Ecosystem Response El Nino-southern Oscillation Environmental Effect Functional Group Global Change Precipitation Intensity Species Diversity Tropical Forest Water Use Efficiency Amazonas Brasil Rain Water Drought El Nino Forest Physiology Plant Leaf Probability Season Species Difference Droughts El Nino-southern Oscillation Forests Plant Leaves Probability Rain Seasons Species Specificity Water Reducing uncertainties in the response of tropical forests to global change requires understanding how intra- and interannual climatic variability selects for different species, community functional composition and ecosystem functioning, so that the response to climatic events of differing frequency and severity can be predicted. Here we present an extensive dataset of hydraulic traits of dominant species in two tropical Amazon forests with contrasting precipitation regimes – low seasonality forest (LSF) and high seasonality forest (HSF) – and relate them to community and ecosystem response to the El Niño–Southern Oscillation (ENSO) of 2015. Hydraulic traits indicated higher drought tolerance in the HSF than in the LSF. Despite more intense drought and lower plant water potentials in HSF during the 2015-ENSO, greater xylem embolism resistance maintained similar hydraulic safety margin as in LSF. This likely explains how ecosystem-scale whole-forest canopy conductance at HSF maintained a similar response to atmospheric drought as at LSF, despite their water transport systems operating at different water potentials. Our results indicate that contrasting precipitation regimes (at seasonal and interannual time scales) select for assemblies of hydraulic traits and taxa at the community level, which may have a significant role in modulating forest drought response at ecosystem scales. © 2019 The Authors. New Phytologist © 2019 New Phytologist Trust 2020-05-14T16:32:34Z 2020-05-14T16:32:34Z 2019 Artigo https://repositorio.inpa.gov.br/handle/1/15508 10.1111/nph.15909 en Volume 223, Número 3, Pags. 1253-1266 Restrito New Phytologist |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Drought Stress Ecosystem Function Ecosystem Response El Nino-southern Oscillation Environmental Effect Functional Group Global Change Precipitation Intensity Species Diversity Tropical Forest Water Use Efficiency Amazonas Brasil Rain Water Drought El Nino Forest Physiology Plant Leaf Probability Season Species Difference Droughts El Nino-southern Oscillation Forests Plant Leaves Probability Rain Seasons Species Specificity Water |
| spellingShingle |
Drought Stress Ecosystem Function Ecosystem Response El Nino-southern Oscillation Environmental Effect Functional Group Global Change Precipitation Intensity Species Diversity Tropical Forest Water Use Efficiency Amazonas Brasil Rain Water Drought El Nino Forest Physiology Plant Leaf Probability Season Species Difference Droughts El Nino-southern Oscillation Forests Plant Leaves Probability Rain Seasons Species Specificity Water Barros, Fernanda de Vasconcellos Hydraulic traits explain differential responses of Amazonian forests to the 2015 El Niño-induced drought |
| topic_facet |
Drought Stress Ecosystem Function Ecosystem Response El Nino-southern Oscillation Environmental Effect Functional Group Global Change Precipitation Intensity Species Diversity Tropical Forest Water Use Efficiency Amazonas Brasil Rain Water Drought El Nino Forest Physiology Plant Leaf Probability Season Species Difference Droughts El Nino-southern Oscillation Forests Plant Leaves Probability Rain Seasons Species Specificity Water |
| description |
Reducing uncertainties in the response of tropical forests to global change requires understanding how intra- and interannual climatic variability selects for different species, community functional composition and ecosystem functioning, so that the response to climatic events of differing frequency and severity can be predicted. Here we present an extensive dataset of hydraulic traits of dominant species in two tropical Amazon forests with contrasting precipitation regimes – low seasonality forest (LSF) and high seasonality forest (HSF) – and relate them to community and ecosystem response to the El Niño–Southern Oscillation (ENSO) of 2015. Hydraulic traits indicated higher drought tolerance in the HSF than in the LSF. Despite more intense drought and lower plant water potentials in HSF during the 2015-ENSO, greater xylem embolism resistance maintained similar hydraulic safety margin as in LSF. This likely explains how ecosystem-scale whole-forest canopy conductance at HSF maintained a similar response to atmospheric drought as at LSF, despite their water transport systems operating at different water potentials. Our results indicate that contrasting precipitation regimes (at seasonal and interannual time scales) select for assemblies of hydraulic traits and taxa at the community level, which may have a significant role in modulating forest drought response at ecosystem scales. © 2019 The Authors. New Phytologist © 2019 New Phytologist Trust |
| format |
Artigo |
| author |
Barros, Fernanda de Vasconcellos |
| author2 |
Bittencourt, Paulo R.L. Brum, Mauro Restrepo-Coupé, Natalia Pereira, Larissa de Souza Teodoro, Grazielle Sales Saleska, Scott Reid Borma, Laura de Simone Christoffersen, Bradley O. Penha, Deliane Vieira Alves, Luciana Ferreira Lima, Adriano José Nogueira Carneiro, Vilany Matilla Colares Gentine, Pierre Lee, Jung-eun Aragao, L. E.O.C. Ivanov, Valeriy Yu Leal, Leila S.M. Araüjo, Alessandro Carioca de Oliveira, Rafael S. |
| author2Str |
Bittencourt, Paulo R.L. Brum, Mauro Restrepo-Coupé, Natalia Pereira, Larissa de Souza Teodoro, Grazielle Sales Saleska, Scott Reid Borma, Laura de Simone Christoffersen, Bradley O. Penha, Deliane Vieira Alves, Luciana Ferreira Lima, Adriano José Nogueira Carneiro, Vilany Matilla Colares Gentine, Pierre Lee, Jung-eun Aragao, L. E.O.C. Ivanov, Valeriy Yu Leal, Leila S.M. Araüjo, Alessandro Carioca de Oliveira, Rafael S. |
| title |
Hydraulic traits explain differential responses of Amazonian forests to the 2015 El Niño-induced drought |
| title_short |
Hydraulic traits explain differential responses of Amazonian forests to the 2015 El Niño-induced drought |
| title_full |
Hydraulic traits explain differential responses of Amazonian forests to the 2015 El Niño-induced drought |
| title_fullStr |
Hydraulic traits explain differential responses of Amazonian forests to the 2015 El Niño-induced drought |
| title_full_unstemmed |
Hydraulic traits explain differential responses of Amazonian forests to the 2015 El Niño-induced drought |
| title_sort |
hydraulic traits explain differential responses of amazonian forests to the 2015 el niño-induced drought |
| publisher |
New Phytologist |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/15508 |
| _version_ |
1787141307488010240 |
| score |
11.755432 |