Fire-scarred fossil tree from the Late Triassic shows a pre-fire drought signal
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/106717 https://doi.org/10.1038/s41598-020-77018-w |
Resumo: | Exploring features of wood anatomy associated with fire scars found on fossil tree trunks is likely to increase our knowledge of the environmental and ecological processes that occurred in ancient forests and of the role of fire as an evolutionary force. In Petrified Forest National Park, Arizona, where Late Triassic fossil trees are exposed, we found 13 examples of fossil logs with external features resembling modern fire scars. One specimen with the unambiguous external features of a fire scar was collected for analysis of its fossilized wood. A light-colored band composed of compressed and distorted tracheids was associated with the scarring event. Cell lumen diameter and cell wall thickness in the pre-scarring fossilized wood show a response similar to that described in modern trees experiencing drought conditions. Tracheids in the post-scarring wood are initially smaller, and then become larger than average following a recovery period, as is often observed in modern conifers following fire. The responses in external morphology and wood anatomy to drought and fire were similar to those of some modern trees and support the view that some forests may have experienced conditions favoring the evolution of fire-adapted traits for more than 200 million years. |
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Fire-scarred fossil tree from the Late Triassic shows a pre-fire drought signalExploring features of wood anatomy associated with fire scars found on fossil tree trunks is likely to increase our knowledge of the environmental and ecological processes that occurred in ancient forests and of the role of fire as an evolutionary force. In Petrified Forest National Park, Arizona, where Late Triassic fossil trees are exposed, we found 13 examples of fossil logs with external features resembling modern fire scars. One specimen with the unambiguous external features of a fire scar was collected for analysis of its fossilized wood. A light-colored band composed of compressed and distorted tracheids was associated with the scarring event. Cell lumen diameter and cell wall thickness in the pre-scarring fossilized wood show a response similar to that described in modern trees experiencing drought conditions. Tracheids in the post-scarring wood are initially smaller, and then become larger than average following a recovery period, as is often observed in modern conifers following fire. The responses in external morphology and wood anatomy to drought and fire were similar to those of some modern trees and support the view that some forests may have experienced conditions favoring the evolution of fire-adapted traits for more than 200 million years.Springer Nature2020-11-18info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/106717http://hdl.handle.net/10316/106717https://doi.org/10.1038/s41598-020-77018-weng2045-2322Byers, Bruce A.DeSoto, LucíaChaney, DanAsh, Sidney R.Byers, Anya B.Byers, Jonathan B.Stoffel, Markusinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-04-18T10:45:44Zoai:estudogeral.uc.pt:10316/106717Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:23:07.918606Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Fire-scarred fossil tree from the Late Triassic shows a pre-fire drought signal |
title |
Fire-scarred fossil tree from the Late Triassic shows a pre-fire drought signal |
spellingShingle |
Fire-scarred fossil tree from the Late Triassic shows a pre-fire drought signal Byers, Bruce A. |
title_short |
Fire-scarred fossil tree from the Late Triassic shows a pre-fire drought signal |
title_full |
Fire-scarred fossil tree from the Late Triassic shows a pre-fire drought signal |
title_fullStr |
Fire-scarred fossil tree from the Late Triassic shows a pre-fire drought signal |
title_full_unstemmed |
Fire-scarred fossil tree from the Late Triassic shows a pre-fire drought signal |
title_sort |
Fire-scarred fossil tree from the Late Triassic shows a pre-fire drought signal |
author |
Byers, Bruce A. |
author_facet |
Byers, Bruce A. DeSoto, Lucía Chaney, Dan Ash, Sidney R. Byers, Anya B. Byers, Jonathan B. Stoffel, Markus |
author_role |
author |
author2 |
DeSoto, Lucía Chaney, Dan Ash, Sidney R. Byers, Anya B. Byers, Jonathan B. Stoffel, Markus |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Byers, Bruce A. DeSoto, Lucía Chaney, Dan Ash, Sidney R. Byers, Anya B. Byers, Jonathan B. Stoffel, Markus |
description |
Exploring features of wood anatomy associated with fire scars found on fossil tree trunks is likely to increase our knowledge of the environmental and ecological processes that occurred in ancient forests and of the role of fire as an evolutionary force. In Petrified Forest National Park, Arizona, where Late Triassic fossil trees are exposed, we found 13 examples of fossil logs with external features resembling modern fire scars. One specimen with the unambiguous external features of a fire scar was collected for analysis of its fossilized wood. A light-colored band composed of compressed and distorted tracheids was associated with the scarring event. Cell lumen diameter and cell wall thickness in the pre-scarring fossilized wood show a response similar to that described in modern trees experiencing drought conditions. Tracheids in the post-scarring wood are initially smaller, and then become larger than average following a recovery period, as is often observed in modern conifers following fire. The responses in external morphology and wood anatomy to drought and fire were similar to those of some modern trees and support the view that some forests may have experienced conditions favoring the evolution of fire-adapted traits for more than 200 million years. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-11-18 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/106717 http://hdl.handle.net/10316/106717 https://doi.org/10.1038/s41598-020-77018-w |
url |
http://hdl.handle.net/10316/106717 https://doi.org/10.1038/s41598-020-77018-w |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2045-2322 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Springer Nature |
publisher.none.fl_str_mv |
Springer Nature |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799134119409483776 |