A multi-proxy framework to detect insect defoliations in tree rings: a case study on pine processionary

Assessing and reconstructing the impacts of defoliation caused by insect herbivores on tree growth, carbon budget and water use, and differentiating these impacts from other stresses and disturbances such as droughts requires multi-proxy approaches. Here we present a methodological framework to pinp...

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Autores: Camarero, Jesús J., Colangelo, M., Rita, A., Hevia, Andrea, Pizarro, M., Voltas, Jordi
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2023
País:España
Institución:Universidad de Jaén
Repositorio:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
OAI Identifier:oai:ruja.ujaen.es:10953/3546
Acceso en línea:https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2023.1192036/full
https://doi.org/10.3389/fevo.2023.1192036
https://hdl.handle.net/10953/3546
Access Level:acceso abierto
Palabra clave:outbreak
Pinus nigra
Raman spectroscopy
Thaumetopoea pityocampa
wood anatomy
wood isotopes
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spelling A multi-proxy framework to detect insect defoliations in tree rings: a case study on pine processionaryCamarero, Jesús J.Colangelo, M.Rita, A.Hevia, AndreaPizarro, M.Voltas, JordioutbreakPinus nigraRaman spectroscopyThaumetopoea pityocampawood anatomywood isotopesAssessing and reconstructing the impacts of defoliation caused by insect herbivores on tree growth, carbon budget and water use, and differentiating these impacts from other stresses and disturbances such as droughts requires multi-proxy approaches. Here we present a methodological framework to pinpoint the impacts of pine processionary moth (Thaumetopoea pityocampa), a major winter-feeding defoliator, on tree cover (remote-sensing indices), radial growth and wood features (anatomy, density, lignin/carbohydrate ratio of cell walls, d13C and d18O of wood cellulose) of drought-prone pine (Pinus nigra) forests in north-eastern Spain. We compared host defoliated (D) and coexisting non-defoliated (ND) pines along with non-host oaks (Quercus faginea) following a strong insect outbreak occurring in 2016 at two climatically contrasting sites (cool-wet Huesca and warm-dry Teruel). Changes in tree-ring width and wood density were analyzed and their responses to climate variables (including a drought index) were compared between D and ND trees. The Normalized Difference Infrared Index showed reductions due to the outbreak of –47.3% and –55.6% in Huesca and Teruel, respectively. The D pines showed: a strong drop in growth (–96.3% on average), a reduction in tracheid lumen diameter (–35.0%) and lower lignin/carbohydrate ratios of tracheid cell-walls. Both pines and oaks showed synchronous growth reductions during dry years. In the wet Huesca site, lower wood d13C values and a stronger coupling between d13C and d18O were observed in D as compared with ND pines. In the dry Teruel site, the minimum wood density of ND pines responded more negatively to spring drought than that of D pines. We argue that multi-proxy assessments that combine several variables have the potential to improve our ability to pinpoint and reconstruct insect outbreaks using tree-ring data.Frontiers202420242023info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2023.1192036/fullhttps://doi.org/10.3389/fevo.2023.1192036https://hdl.handle.net/10953/3546reponame:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaéninstname:Universidad de JaénFrontiers in Ecology and Evolution [2023]; [11]:CC0 1.0 Universalhttp://creativecommons.org/publicdomain/zero/1.0/info:eu-repo/semantics/openAccessoai:ruja.ujaen.es:10953/35462026-06-24T12:41:07Z
dc.title.none.fl_str_mv A multi-proxy framework to detect insect defoliations in tree rings: a case study on pine processionary
title A multi-proxy framework to detect insect defoliations in tree rings: a case study on pine processionary
spellingShingle A multi-proxy framework to detect insect defoliations in tree rings: a case study on pine processionary
Camarero, Jesús J.
outbreak
Pinus nigra
Raman spectroscopy
Thaumetopoea pityocampa
wood anatomy
wood isotopes
title_short A multi-proxy framework to detect insect defoliations in tree rings: a case study on pine processionary
title_full A multi-proxy framework to detect insect defoliations in tree rings: a case study on pine processionary
title_fullStr A multi-proxy framework to detect insect defoliations in tree rings: a case study on pine processionary
title_full_unstemmed A multi-proxy framework to detect insect defoliations in tree rings: a case study on pine processionary
title_sort A multi-proxy framework to detect insect defoliations in tree rings: a case study on pine processionary
dc.creator.none.fl_str_mv Camarero, Jesús J.
Colangelo, M.
Rita, A.
Hevia, Andrea
Pizarro, M.
Voltas, Jordi
author Camarero, Jesús J.
author_facet Camarero, Jesús J.
Colangelo, M.
Rita, A.
Hevia, Andrea
Pizarro, M.
Voltas, Jordi
author_role author
author2 Colangelo, M.
Rita, A.
Hevia, Andrea
Pizarro, M.
Voltas, Jordi
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv outbreak
Pinus nigra
Raman spectroscopy
Thaumetopoea pityocampa
wood anatomy
wood isotopes
topic outbreak
Pinus nigra
Raman spectroscopy
Thaumetopoea pityocampa
wood anatomy
wood isotopes
description Assessing and reconstructing the impacts of defoliation caused by insect herbivores on tree growth, carbon budget and water use, and differentiating these impacts from other stresses and disturbances such as droughts requires multi-proxy approaches. Here we present a methodological framework to pinpoint the impacts of pine processionary moth (Thaumetopoea pityocampa), a major winter-feeding defoliator, on tree cover (remote-sensing indices), radial growth and wood features (anatomy, density, lignin/carbohydrate ratio of cell walls, d13C and d18O of wood cellulose) of drought-prone pine (Pinus nigra) forests in north-eastern Spain. We compared host defoliated (D) and coexisting non-defoliated (ND) pines along with non-host oaks (Quercus faginea) following a strong insect outbreak occurring in 2016 at two climatically contrasting sites (cool-wet Huesca and warm-dry Teruel). Changes in tree-ring width and wood density were analyzed and their responses to climate variables (including a drought index) were compared between D and ND trees. The Normalized Difference Infrared Index showed reductions due to the outbreak of –47.3% and –55.6% in Huesca and Teruel, respectively. The D pines showed: a strong drop in growth (–96.3% on average), a reduction in tracheid lumen diameter (–35.0%) and lower lignin/carbohydrate ratios of tracheid cell-walls. Both pines and oaks showed synchronous growth reductions during dry years. In the wet Huesca site, lower wood d13C values and a stronger coupling between d13C and d18O were observed in D as compared with ND pines. In the dry Teruel site, the minimum wood density of ND pines responded more negatively to spring drought than that of D pines. We argue that multi-proxy assessments that combine several variables have the potential to improve our ability to pinpoint and reconstruct insect outbreaks using tree-ring data.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2023.1192036/full
https://doi.org/10.3389/fevo.2023.1192036
https://hdl.handle.net/10953/3546
url https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2023.1192036/full
https://doi.org/10.3389/fevo.2023.1192036
https://hdl.handle.net/10953/3546
dc.relation.none.fl_str_mv Frontiers in Ecology and Evolution [2023]; [11]:
dc.rights.none.fl_str_mv CC0 1.0 Universal
http://creativecommons.org/publicdomain/zero/1.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv CC0 1.0 Universal
http://creativecommons.org/publicdomain/zero/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Frontiers
publisher.none.fl_str_mv Frontiers
dc.source.none.fl_str_mv reponame:RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
instname:Universidad de Jaén
instname_str Universidad de Jaén
reponame_str RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
collection RUJA. Repositorio Institucional de la Producción Científica de la Universidad de Jaén
repository.name.fl_str_mv
repository.mail.fl_str_mv
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