Cargando…

Growth and establishment of monodominant stands affected by ENSO and flooding in the Pantanal

Climatic factors can influence the establishment and growth of wood species, but little is known about the effect of these factors on monodominant communities in wetlands. Therefore, we asked how climatic factors, such as ENSO (El Niño-Southern Oscillation), precipitation and flooding, influence gro...

Descripción completa

Detalles Bibliográficos
Autores principales: Gris, Darlene, Paixão, Eliana, Arruda, Rosani C. O., Ishii, Iria H., Marques, Maria R., Damasceno-Junior, Geraldo A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7042278/
https://www.ncbi.nlm.nih.gov/pubmed/32099071
http://dx.doi.org/10.1038/s41598-020-60402-x
_version_ 1783501277841326080
author Gris, Darlene
Paixão, Eliana
Arruda, Rosani C. O.
Ishii, Iria H.
Marques, Maria R.
Damasceno-Junior, Geraldo A.
author_facet Gris, Darlene
Paixão, Eliana
Arruda, Rosani C. O.
Ishii, Iria H.
Marques, Maria R.
Damasceno-Junior, Geraldo A.
author_sort Gris, Darlene
collection PubMed
description Climatic factors can influence the establishment and growth of wood species, but little is known about the effect of these factors on monodominant communities in wetlands. Therefore, we asked how climatic factors, such as ENSO (El Niño-Southern Oscillation), precipitation and flooding, influence growth and establishment of the dominant species Erythrina fusca in the Pantanal. We determined the age of sampled individuals, the age of the population and evaluated the effects of climate on tree growth. We obtained samples for dendrochronological analyses using destructive (seven individuals) and non-destructive methods. We cross-dated and built a chronology, correlating results with climatic factors. We sampled 0.6 ha of the population and separated individuals into diameter classes to determine age based on diameter/age ratio obtained through dendrochronological analyses. We obtained a chronology with individuals up to 34 years old, while in the population sample, the oldest individual was 54 years old. The factors that influenced growth during the study period were precipitation (positive correlation) and El Niño (negative correlation). E. fusca individuals seem to grow more during the period of highest precipitation, and El Niño events reduce precipitation in the Pantanal, resulting in a decrease in the growth of E. fusca individuals. We detected a decrease of young individuals in the last nine years, which seems to be related to the decrease in minimum flood levels. This indicates a future decline in the number of individuals. These results allow us to propose measures to protect these monodominant formations, which mainly involve avoiding further anthropic activities, that could reduce flooding levels.
format Online
Article
Text
id pubmed-7042278
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-70422782020-03-03 Growth and establishment of monodominant stands affected by ENSO and flooding in the Pantanal Gris, Darlene Paixão, Eliana Arruda, Rosani C. O. Ishii, Iria H. Marques, Maria R. Damasceno-Junior, Geraldo A. Sci Rep Article Climatic factors can influence the establishment and growth of wood species, but little is known about the effect of these factors on monodominant communities in wetlands. Therefore, we asked how climatic factors, such as ENSO (El Niño-Southern Oscillation), precipitation and flooding, influence growth and establishment of the dominant species Erythrina fusca in the Pantanal. We determined the age of sampled individuals, the age of the population and evaluated the effects of climate on tree growth. We obtained samples for dendrochronological analyses using destructive (seven individuals) and non-destructive methods. We cross-dated and built a chronology, correlating results with climatic factors. We sampled 0.6 ha of the population and separated individuals into diameter classes to determine age based on diameter/age ratio obtained through dendrochronological analyses. We obtained a chronology with individuals up to 34 years old, while in the population sample, the oldest individual was 54 years old. The factors that influenced growth during the study period were precipitation (positive correlation) and El Niño (negative correlation). E. fusca individuals seem to grow more during the period of highest precipitation, and El Niño events reduce precipitation in the Pantanal, resulting in a decrease in the growth of E. fusca individuals. We detected a decrease of young individuals in the last nine years, which seems to be related to the decrease in minimum flood levels. This indicates a future decline in the number of individuals. These results allow us to propose measures to protect these monodominant formations, which mainly involve avoiding further anthropic activities, that could reduce flooding levels. Nature Publishing Group UK 2020-02-25 /pmc/articles/PMC7042278/ /pubmed/32099071 http://dx.doi.org/10.1038/s41598-020-60402-x Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Gris, Darlene
Paixão, Eliana
Arruda, Rosani C. O.
Ishii, Iria H.
Marques, Maria R.
Damasceno-Junior, Geraldo A.
Growth and establishment of monodominant stands affected by ENSO and flooding in the Pantanal
title Growth and establishment of monodominant stands affected by ENSO and flooding in the Pantanal
title_full Growth and establishment of monodominant stands affected by ENSO and flooding in the Pantanal
title_fullStr Growth and establishment of monodominant stands affected by ENSO and flooding in the Pantanal
title_full_unstemmed Growth and establishment of monodominant stands affected by ENSO and flooding in the Pantanal
title_short Growth and establishment of monodominant stands affected by ENSO and flooding in the Pantanal
title_sort growth and establishment of monodominant stands affected by enso and flooding in the pantanal
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7042278/
https://www.ncbi.nlm.nih.gov/pubmed/32099071
http://dx.doi.org/10.1038/s41598-020-60402-x
work_keys_str_mv AT grisdarlene growthandestablishmentofmonodominantstandsaffectedbyensoandfloodinginthepantanal
AT paixaoeliana growthandestablishmentofmonodominantstandsaffectedbyensoandfloodinginthepantanal
AT arrudarosanico growthandestablishmentofmonodominantstandsaffectedbyensoandfloodinginthepantanal
AT ishiiiriah growthandestablishmentofmonodominantstandsaffectedbyensoandfloodinginthepantanal
AT marquesmariar growthandestablishmentofmonodominantstandsaffectedbyensoandfloodinginthepantanal
AT damascenojuniorgeraldoa growthandestablishmentofmonodominantstandsaffectedbyensoandfloodinginthepantanal