Artigo

Amazonian tree mortality during the 1997 El Nino drought

In 1997, the Amazon Basin experienced an exceptionally severe El Nino drought. We assessed effects of this rare event on mortality rates of trees in intact rain forest based on data from permanent plots. Long-term (5- to 13-year) mortality rates averaged only 1.12% per year prior to the drought. Dur...

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Autor principal: Williamson, G. Bruce
Outros Autores: Laurance, William F., Oliveira, Alexandre Adalardo de, Delamônica, Patricia, Gascon, Claude, Lovejoy, Thomas E., Pohl, Luciano
Grau: Artigo
Idioma: English
Publicado em: Conservation Biology 2020
Assuntos:
Drought Stress
El Nino
Extreme Event
Mortality
Rainforest
Tree
South America
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/19157
id oai:repositorio:1-19157
recordtype dspace
spelling oai:repositorio:1-19157 Amazonian tree mortality during the 1997 El Nino drought Williamson, G. Bruce Laurance, William F. Oliveira, Alexandre Adalardo de Delamônica, Patricia Gascon, Claude Lovejoy, Thomas E. Pohl, Luciano Drought Stress El Nino Extreme Event Mortality Rainforest Tree South America In 1997, the Amazon Basin experienced an exceptionally severe El Nino drought. We assessed effects of this rare event on mortality rates of trees in intact rain forest based on data from permanent plots. Long-term (5- to 13-year) mortality rates averaged only 1.12% per year prior to the drought. During the drought year, annual mortality jumped to 1.91% but abruptly fell back to 1.23% in the year following El Nino. Trees dying during the drought did not differ significantly in size or species composition from those that died previously, and there was no detectable effect of soil texture on mortality rates. These results suggest that intact Amazonian rainforests are relatively resistant to severe El Nino events. 2020-06-15T22:05:53Z 2020-06-15T22:05:53Z 2000 Artigo https://repositorio.inpa.gov.br/handle/1/19157 10.1046/j.1523-1739.2000.99298.x en Volume 14, Número 5, Pags. 1538-1542 Restrito Conservation Biology
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
topic Drought Stress
El Nino
Extreme Event
Mortality
Rainforest
Tree
South America
spellingShingle Drought Stress
El Nino
Extreme Event
Mortality
Rainforest
Tree
South America
Williamson, G. Bruce
Amazonian tree mortality during the 1997 El Nino drought
topic_facet Drought Stress
El Nino
Extreme Event
Mortality
Rainforest
Tree
South America
description In 1997, the Amazon Basin experienced an exceptionally severe El Nino drought. We assessed effects of this rare event on mortality rates of trees in intact rain forest based on data from permanent plots. Long-term (5- to 13-year) mortality rates averaged only 1.12% per year prior to the drought. During the drought year, annual mortality jumped to 1.91% but abruptly fell back to 1.23% in the year following El Nino. Trees dying during the drought did not differ significantly in size or species composition from those that died previously, and there was no detectable effect of soil texture on mortality rates. These results suggest that intact Amazonian rainforests are relatively resistant to severe El Nino events.
format Artigo
author Williamson, G. Bruce
author2 Laurance, William F.
Oliveira, Alexandre Adalardo de
Delamônica, Patricia
Gascon, Claude
Lovejoy, Thomas E.
Pohl, Luciano
author2Str Laurance, William F.
Oliveira, Alexandre Adalardo de
Delamônica, Patricia
Gascon, Claude
Lovejoy, Thomas E.
Pohl, Luciano
title Amazonian tree mortality during the 1997 El Nino drought
title_short Amazonian tree mortality during the 1997 El Nino drought
title_full Amazonian tree mortality during the 1997 El Nino drought
title_fullStr Amazonian tree mortality during the 1997 El Nino drought
title_full_unstemmed Amazonian tree mortality during the 1997 El Nino drought
title_sort amazonian tree mortality during the 1997 el nino drought
publisher Conservation Biology
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/19157
_version_ 1787142975777669120
score 11.755432

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