SimardElhaniMorinEtAl2008

Référence

Simard, S., Elhani, S., Morin, H., Krause, C. and Cherubini, P. (2008) Carbon and oxygen stable isotopes from tree-rings to identify spruce budworm outbreaks in the boreal forest of Québec. Chemical Geology, 252(1-2):80-87. (URL )

Résumé

The aim of this study was to test the potential of carbon ([delta]13C) and oxygen ([delta]18O) isotopes as indicators of spruce budworm outbreaks. It was hypothesized that defoliation induced by insects would trigger a 13C enrichment of Abies balsamea and Picea mariana tree-ring [alpha]-cellulose through higher photosynthetic compensatory rate, while [delta]18O would remain constant. The hypothesis was based on observations of increased photosynthetic rate induced by defoliation, as a compensatory mechanism ([Little, C.H.A., Lavigne, M.B., Ostaff, D.P., 2003. Impact of old foliage removal, simulating defoliation by the balsam fir sawfly, on balsam fir tree growth and photosynthesis of current-year shoots. For. Ecol. Manag. 186, 261-269], [Lavigne, M.B., Little, C.H.A., Major, J.E., 2001. Increasing the sink:source balance enhances photosynthetic rate of 1-year-old balsam fir foliage by increasing allocation of mineral nutrients. Tree Physiol. 21, 417-426]). Comparison of the two host species, A. balsamea and P. mariana with a non-host one, Pinus banksiana, revealed carbon isotope enrichments during both the 1950s and 1970s spruce budworm outbreaks which did not occur in the non-host species. Carbon and oxygen isotope values showed high synchronicity not only within species but also between species (A. balsamea and P. mariana) and sites. P. banksiana [delta]18O values were also highly synchronous with those of the two other coniferous species. The comparison of host and non-host ring width, [delta]13C and [delta]18O chronologies confirmed the potential of combining these isotope indicators of spruce budworm outbreaks.

Format EndNote

Vous pouvez importer cette référence dans EndNote.

Format BibTeX-CSV

Vous pouvez importer cette référence en format BibTeX-CSV.

Format BibTeX

Vous pouvez copier l'entrée BibTeX de cette référence ci-bas, ou l'importer directement dans un logiciel tel que JabRef .

@ARTICLE { SimardElhaniMorinEtAl2008,
    AUTHOR = { Simard, S. and Elhani, S. and Morin, H. and Krause, C. and Cherubini, P. },
    TITLE = { Carbon and oxygen stable isotopes from tree-rings to identify spruce budworm outbreaks in the boreal forest of Québec },
    JOURNAL = { Chemical Geology },
    YEAR = { 2008 },
    VOLUME = { 252 },
    PAGES = { 80-87 },
    NUMBER = { 1-2 },
    MONTH = { jun },
    ABSTRACT = { The aim of this study was to test the potential of carbon ([delta]13C) and oxygen ([delta]18O) isotopes as indicators of spruce budworm outbreaks. It was hypothesized that defoliation induced by insects would trigger a 13C enrichment of Abies balsamea and Picea mariana tree-ring [alpha]-cellulose through higher photosynthetic compensatory rate, while [delta]18O would remain constant. The hypothesis was based on observations of increased photosynthetic rate induced by defoliation, as a compensatory mechanism ([Little, C.H.A., Lavigne, M.B., Ostaff, D.P., 2003. Impact of old foliage removal, simulating defoliation by the balsam fir sawfly, on balsam fir tree growth and photosynthesis of current-year shoots. For. Ecol. Manag. 186, 261-269], [Lavigne, M.B., Little, C.H.A., Major, J.E., 2001. Increasing the sink:source balance enhances photosynthetic rate of 1-year-old balsam fir foliage by increasing allocation of mineral nutrients. Tree Physiol. 21, 417-426]). Comparison of the two host species, A. balsamea and P. mariana with a non-host one, Pinus banksiana, revealed carbon isotope enrichments during both the 1950s and 1970s spruce budworm outbreaks which did not occur in the non-host species. Carbon and oxygen isotope values showed high synchronicity not only within species but also between species (A. balsamea and P. mariana) and sites. P. banksiana [delta]18O values were also highly synchronous with those of the two other coniferous species. The comparison of host and non-host ring width, [delta]13C and [delta]18O chronologies confirmed the potential of combining these isotope indicators of spruce budworm outbreaks. },
    BOOKTITLE = { Stable Isotope Analysis of Tree Rings },
    KEYWORDS = { Abies balsamea, Spruce budworm outbreaks, Defoliation, Stable isotopes },
    OWNER = { brugerolles },
    TIMESTAMP = { 2008.06.16 },
    URL = { http://www.sciencedirect.com/science/article/B6V5Y-4RV17P1-4/1/490a74204c902b6dad65fdbe937811f8 },
}

********************************************************** ***************** Facebook Twitter *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ************* Colloque **************************** **********************************************************

1er au 3 mai 2019
UQAC

********************************************************** ************* R à Québec 2019**************************** **********************************************************

********************************************************** ********************* Traits **************************** **********************************************************

********************************************************** ************* Écoles d'été et formation **************************** **********************************************************

Écoles d'été et formations

Cours intensif sur l'analyse des pistes 
6-10 mai 2019, Université de Sherbrooke
Cours intensif : Taxonomie et méthodes d’échantillonnage en tourbières 
6-17 mai 2019, Université Laval
Dendrochronological Fieldweek 2019 
16-21 mai 2019, Station FERLD
Traits Fonctionnels des Organismes - École thématique internationale
19-24 mai 2019, Porquerolles, France
Cours aux cycles supérieurs: Terrain avancé en géographie 
10-15 juin 2019, FERLD, Abitibi-Témiscamingue
École d'été « Drones et télédétection environnementale » 
13-14 juin 2019, Sherbrooke
Ecole d'été en Biologie et Ecologie intégratives 
6-12 juillet 2019, Pyrénées françaises
École d'été en modélisation de la biodiversité 
19-23 août 2019, Orford
Cours aux cycles supérieurs: Aménagement des écosystèmes forestiers 
19-30 août 2019, Station FERLD

********************************************************** ***************** Pub - Carapace ****************** **********************************************************

********************************************************** ***************** Pub - Budworm ****************** **********************************************************

********************************************************** ***************** Pub - Colibri **************************** **********************************************************

********************************************************** ********** Pub 6 - Au coeur de l'arbre *********** **********************************************************

...Une exposition
virtuelle sur l'arbre!

********************************************************** ***************** Boîte à trucs *************** **********************************************************

CEF-Référence
La référence vedette !

Jérémie Alluard (2016) Les statistiques au moments de la rédaction 

  • Ce document a pour but de guider les étudiants à intégrer de manière appropriée une analyse statistique dans leur rapport de recherche.

Voir les autres...