Individual variability in tree allometry determines light resource allocation in forest ecosystems : A hierarchical Bayesian approach
Tree species differences in crown size and shape are often highlighted as key characteristics determining light interception strategies and successional dynamics. The phenotypic plasticity of species in response to light and space availability suggests that intraspecific variability can have potential consequences on light interception and community dynamics. Species crown size varies depending on site characteristics and other factors at the individual level which differ from competition for light and space. These factors, such as individual genetic characteristics, past disturbances or environmental micro-site effects, combine with competition- related phenotypic plasticity to determine the individual variability in crown size. Site and individual variability are typically ignored when considering crown size and light interception by trees, and residual variability is relegated to a residual error term, which is then ignored when studying ecological processes. In the present study, we structured and quantified variability at the species, site, and individual levels for three frequently used tree allometric relations using fixed and random effects in a hierarchical Bayesian framework.Wefocused on two species: Abies alba (silver fir) and Picea abies (Norway spruce) in nine forest stands of the western Alps.Wedemonstrated that species had different allometric relations from site to site and that individual variability accounted for a large part of the variation in allometric relations. Using a spatially explicit radiation transmission model on real stands, we showed that individual variability in tree allometry had a substantial impact on light resource allocation in the forest. Individual variability in tree allometry modulates species' light-intercepting ability. It generates heterogeneous light conditions under the canopy, with high light micro-habitats that may promote the regeneration of light-demanding species and slow down successional dynamics.
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dig-cirad-fr-561285 |
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Francia |
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Europa del Oeste |
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Biblioteca del CIRAD Francia |
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eng |
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U10 - Informatique, mathématiques et statistiques F62 - Physiologie végétale - Croissance et développement K10 - Production forestière F40 - Écologie végétale croissance arbre mesure (activité) écosystème forêt lumière variation génétique modèle mathématique propriété rhéologique phénotype succession écologique plasticité http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_4668 http://aims.fao.org/aos/agrovoc/c_2482 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_6553 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_2464 http://aims.fao.org/aos/agrovoc/c_28498 http://aims.fao.org/aos/agrovoc/c_36208 U10 - Informatique, mathématiques et statistiques F62 - Physiologie végétale - Croissance et développement K10 - Production forestière F40 - Écologie végétale croissance arbre mesure (activité) écosystème forêt lumière variation génétique modèle mathématique propriété rhéologique phénotype succession écologique plasticité http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_4668 http://aims.fao.org/aos/agrovoc/c_2482 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_6553 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_2464 http://aims.fao.org/aos/agrovoc/c_28498 http://aims.fao.org/aos/agrovoc/c_36208 |
spellingShingle |
U10 - Informatique, mathématiques et statistiques F62 - Physiologie végétale - Croissance et développement K10 - Production forestière F40 - Écologie végétale croissance arbre mesure (activité) écosystème forêt lumière variation génétique modèle mathématique propriété rhéologique phénotype succession écologique plasticité http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_4668 http://aims.fao.org/aos/agrovoc/c_2482 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_6553 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_2464 http://aims.fao.org/aos/agrovoc/c_28498 http://aims.fao.org/aos/agrovoc/c_36208 U10 - Informatique, mathématiques et statistiques F62 - Physiologie végétale - Croissance et développement K10 - Production forestière F40 - Écologie végétale croissance arbre mesure (activité) écosystème forêt lumière variation génétique modèle mathématique propriété rhéologique phénotype succession écologique plasticité http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_4668 http://aims.fao.org/aos/agrovoc/c_2482 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_6553 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_2464 http://aims.fao.org/aos/agrovoc/c_28498 http://aims.fao.org/aos/agrovoc/c_36208 Vieilledent, Ghislain Courbaud, Benoît Kunstler, Georges Dhôte, Jean-François Clark, James S. Individual variability in tree allometry determines light resource allocation in forest ecosystems : A hierarchical Bayesian approach |
description |
Tree species differences in crown size and shape are often highlighted as key characteristics determining light interception strategies and successional dynamics. The phenotypic plasticity of species in response to light and space availability suggests that intraspecific variability can have potential consequences on light interception and community dynamics. Species crown size varies depending on site characteristics and other factors at the individual level which differ from competition for light and space. These factors, such as individual genetic characteristics, past disturbances or environmental micro-site effects, combine with competition- related phenotypic plasticity to determine the individual variability in crown size. Site and individual variability are typically ignored when considering crown size and light interception by trees, and residual variability is relegated to a residual error term, which is then ignored when studying ecological processes. In the present study, we structured and quantified variability at the species, site, and individual levels for three frequently used tree allometric relations using fixed and random effects in a hierarchical Bayesian framework.Wefocused on two species: Abies alba (silver fir) and Picea abies (Norway spruce) in nine forest stands of the western Alps.Wedemonstrated that species had different allometric relations from site to site and that individual variability accounted for a large part of the variation in allometric relations. Using a spatially explicit radiation transmission model on real stands, we showed that individual variability in tree allometry had a substantial impact on light resource allocation in the forest. Individual variability in tree allometry modulates species' light-intercepting ability. It generates heterogeneous light conditions under the canopy, with high light micro-habitats that may promote the regeneration of light-demanding species and slow down successional dynamics. |
format |
article |
topic_facet |
U10 - Informatique, mathématiques et statistiques F62 - Physiologie végétale - Croissance et développement K10 - Production forestière F40 - Écologie végétale croissance arbre mesure (activité) écosystème forêt lumière variation génétique modèle mathématique propriété rhéologique phénotype succession écologique plasticité http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_4668 http://aims.fao.org/aos/agrovoc/c_2482 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_6553 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_2464 http://aims.fao.org/aos/agrovoc/c_28498 http://aims.fao.org/aos/agrovoc/c_36208 |
author |
Vieilledent, Ghislain Courbaud, Benoît Kunstler, Georges Dhôte, Jean-François Clark, James S. |
author_facet |
Vieilledent, Ghislain Courbaud, Benoît Kunstler, Georges Dhôte, Jean-François Clark, James S. |
author_sort |
Vieilledent, Ghislain |
title |
Individual variability in tree allometry determines light resource allocation in forest ecosystems : A hierarchical Bayesian approach |
title_short |
Individual variability in tree allometry determines light resource allocation in forest ecosystems : A hierarchical Bayesian approach |
title_full |
Individual variability in tree allometry determines light resource allocation in forest ecosystems : A hierarchical Bayesian approach |
title_fullStr |
Individual variability in tree allometry determines light resource allocation in forest ecosystems : A hierarchical Bayesian approach |
title_full_unstemmed |
Individual variability in tree allometry determines light resource allocation in forest ecosystems : A hierarchical Bayesian approach |
title_sort |
individual variability in tree allometry determines light resource allocation in forest ecosystems : a hierarchical bayesian approach |
url |
http://agritrop.cirad.fr/561285/ http://agritrop.cirad.fr/561285/1/document_561285.pdf |
work_keys_str_mv |
AT vieilledentghislain individualvariabilityintreeallometrydetermineslightresourceallocationinforestecosystemsahierarchicalbayesianapproach AT courbaudbenoit individualvariabilityintreeallometrydetermineslightresourceallocationinforestecosystemsahierarchicalbayesianapproach AT kunstlergeorges individualvariabilityintreeallometrydetermineslightresourceallocationinforestecosystemsahierarchicalbayesianapproach AT dhotejeanfrancois individualvariabilityintreeallometrydetermineslightresourceallocationinforestecosystemsahierarchicalbayesianapproach AT clarkjamess individualvariabilityintreeallometrydetermineslightresourceallocationinforestecosystemsahierarchicalbayesianapproach |
_version_ |
1792497916844179456 |
spelling |
dig-cirad-fr-5612852024-01-28T19:32:43Z http://agritrop.cirad.fr/561285/ http://agritrop.cirad.fr/561285/ Individual variability in tree allometry determines light resource allocation in forest ecosystems : A hierarchical Bayesian approach. Vieilledent Ghislain, Courbaud Benoît, Kunstler Georges, Dhôte Jean-François, Clark James S.. 2010. Oecologia, 163 (3) : 759-773.https://doi.org/10.1007/s00442-010-1581-9 <https://doi.org/10.1007/s00442-010-1581-9> Individual variability in tree allometry determines light resource allocation in forest ecosystems : A hierarchical Bayesian approach Vieilledent, Ghislain Courbaud, Benoît Kunstler, Georges Dhôte, Jean-François Clark, James S. eng 2010 Oecologia U10 - Informatique, mathématiques et statistiques F62 - Physiologie végétale - Croissance et développement K10 - Production forestière F40 - Écologie végétale croissance arbre mesure (activité) écosystème forêt lumière variation génétique modèle mathématique propriété rhéologique phénotype succession écologique plasticité http://aims.fao.org/aos/agrovoc/c_3394 http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_4668 http://aims.fao.org/aos/agrovoc/c_2482 http://aims.fao.org/aos/agrovoc/c_3062 http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_6553 http://aims.fao.org/aos/agrovoc/c_5776 http://aims.fao.org/aos/agrovoc/c_2464 http://aims.fao.org/aos/agrovoc/c_28498 Alpes http://aims.fao.org/aos/agrovoc/c_36208 Tree species differences in crown size and shape are often highlighted as key characteristics determining light interception strategies and successional dynamics. The phenotypic plasticity of species in response to light and space availability suggests that intraspecific variability can have potential consequences on light interception and community dynamics. Species crown size varies depending on site characteristics and other factors at the individual level which differ from competition for light and space. These factors, such as individual genetic characteristics, past disturbances or environmental micro-site effects, combine with competition- related phenotypic plasticity to determine the individual variability in crown size. Site and individual variability are typically ignored when considering crown size and light interception by trees, and residual variability is relegated to a residual error term, which is then ignored when studying ecological processes. In the present study, we structured and quantified variability at the species, site, and individual levels for three frequently used tree allometric relations using fixed and random effects in a hierarchical Bayesian framework.Wefocused on two species: Abies alba (silver fir) and Picea abies (Norway spruce) in nine forest stands of the western Alps.Wedemonstrated that species had different allometric relations from site to site and that individual variability accounted for a large part of the variation in allometric relations. Using a spatially explicit radiation transmission model on real stands, we showed that individual variability in tree allometry had a substantial impact on light resource allocation in the forest. Individual variability in tree allometry modulates species' light-intercepting ability. It generates heterogeneous light conditions under the canopy, with high light micro-habitats that may promote the regeneration of light-demanding species and slow down successional dynamics. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/561285/1/document_561285.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1007/s00442-010-1581-9 10.1007/s00442-010-1581-9 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=212375 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00442-010-1581-9 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1007/s00442-010-1581-9 |