KembelCahill2011

Référence

Kembel, S.W., Cahill Jr., J.F. (2011) Independent evolution of leaf and root traits within and among temperate grassland plant communities. PLoS ONE, 6(6):e19992. (Scopus )

Résumé

In this study, we used data from temperate grassland plant communities in Alberta, Canada to test two longstanding hypotheses in ecology: 1) that there has been correlated evolution of the leaves and roots of plants due to selection for an integrated whole-plant resource uptake strategy, and 2) that trait diversity in ecological communities is generated by adaptations to the conditions in different habitats. We tested the first hypothesis using phylogenetic comparative methods to test for evidence of correlated evolution of suites of leaf and root functional traits in these grasslands. There were consistent evolutionary correlations among traits related to plant resource uptake strategies within leaf tissues, and within root tissues. In contrast, there were inconsistent correlations between the traits of leaves and the traits of roots, suggesting different evolutionary pressures on the above and belowground components of plant morphology. To test the second hypothesis, we evaluated the relative importance of two components of trait diversity: within-community variation (species trait values relative to co-occurring species; α traits) and among-community variation (the average trait value in communities where species occur; β traits). Trait diversity was mostly explained by variation among co-occurring species, not among-communities. Additionally, there was a phylogenetic signal in the within-community trait values of species relative to co-occurring taxa, but not in their habitat associations or among-community trait variation. These results suggest that sorting of pre-existing trait variation into local communities can explain the leaf and root trait diversity in these grasslands. © 2011 Kembel, Cahill.

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 { KembelCahill2011,
    AUTHOR = { Kembel, S.W. and Cahill Jr., J.F. },
    TITLE = { Independent evolution of leaf and root traits within and among temperate grassland plant communities },
    JOURNAL = { PLoS ONE },
    YEAR = { 2011 },
    VOLUME = { 6 },
    PAGES = { e19992 },
    NUMBER = { 6 },
    ABSTRACT = { In this study, we used data from temperate grassland plant communities in Alberta, Canada to test two longstanding hypotheses in ecology: 1) that there has been correlated evolution of the leaves and roots of plants due to selection for an integrated whole-plant resource uptake strategy, and 2) that trait diversity in ecological communities is generated by adaptations to the conditions in different habitats. We tested the first hypothesis using phylogenetic comparative methods to test for evidence of correlated evolution of suites of leaf and root functional traits in these grasslands. There were consistent evolutionary correlations among traits related to plant resource uptake strategies within leaf tissues, and within root tissues. In contrast, there were inconsistent correlations between the traits of leaves and the traits of roots, suggesting different evolutionary pressures on the above and belowground components of plant morphology. To test the second hypothesis, we evaluated the relative importance of two components of trait diversity: within-community variation (species trait values relative to co-occurring species; α traits) and among-community variation (the average trait value in communities where species occur; β traits). Trait diversity was mostly explained by variation among co-occurring species, not among-communities. Additionally, there was a phylogenetic signal in the within-community trait values of species relative to co-occurring taxa, but not in their habitat associations or among-community trait variation. These results suggest that sorting of pre-existing trait variation into local communities can explain the leaf and root trait diversity in these grasslands. © 2011 Kembel, Cahill. },
    COMMENT = { Cited By (since 1996): 3 Export Date: 17 September 2012 Source: Scopus Art. No.: e19992 doi: 10.1371/journal.pone.0019992 },
    ISSN = { 19326203 (ISSN) },
    KEYWORDS = { article, Canada, controlled study, evolution, evolutionary adaptation, morphological trait, nonhuman, phylogeny, plant community, plant leaf, plant morphology, plant root, species difference, species habitat, temperate grassland, adaptation, biodiversity, ecosystem, genetics, histology, molecular evolution, Poaceae, Adaptation, Physiological, Biodiversity, Ecosystem, Evolution, Molecular, Phylogeny, Plant Leaves, Plant Roots, Poaceae, Species Specificity },
    OWNER = { Luc },
    TIMESTAMP = { 2012.09.17 },
    URL = { http://www.scopus.com/inward/record.url?eid=2-s2.0-79958098106&partnerID=40&md5=8f0a0b0964e67129a6495f23d1a82fdb },
}

********************************************************** *************************** FRQNT ************************ **********************************************************

Un regroupement stratégique du

********************************************************** *********************** Infolettre *********************** **********************************************************

Abonnez-vous à
l'Infolettre du CEF!

********************************************************** ***************** Pub - Colloque du CEF ****************** **********************************************************

********************************************************** ***************** Pub - Congrès Mycelium ****************** **********************************************************

Septembre 2021

********************************************************** ***************** Pub - IWTT ****************** **********************************************************

Reporté en 2021

**********************************************************

***************** Pub - Symphonies_Boreales ****************** **********************************************************

********************************************************** ***************** 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...