Show simple item record Ameztegui, Aitor Paquette, Alain Shipley, Bill Heym, Michael Messier, Christian Gravel, Dominique 2016-11-23T20:36:32Z 2016-11-23T20:36:32Z 2016-12-19
dc.identifier doi:10.5061/dryad.12b0h
dc.identifier.citation Ameztegui A, Paquette A, Shipley B, Heym M, Messier C, Gravel D (2016) Shade tolerance and the functional trait: demography relationship in temperate and boreal forests. Functional Ecology 31(4): 821-830.
dc.identifier.issn 0269-8463
dc.description Despite being instrumental in forest ecology, the definition and nature of shade tolerance are complex and not beyond controversy. Moreover, the role it plays in the trait – demography relationship remains unclear. Here, we hypothesize that shade tolerance can be achieved by alternative combinations of traits depending on the species’ functional group (evergreen vs. deciduous species), and that its ability to explain the array of traits involved in demography will also vary between these two groups. We used dimension reduction to identify the main trait spectra for 48 tree species, including 23 evergreens and 25 deciduous – dispersed across 21 genera and 13 families. We assessed the relationship between functional traits, shade tolerance and demographic performance at high and low light using structural equation modelling. The dimensions found corresponded to the trait spectra previously observed in the literature and were significantly related to measures of demography. However, our results support the existence of a divergence between evergreen and deciduous species in the way shade tolerance relates to the demography of species along light gradients. We show that shade tolerance can be attained through different combination of traits depending on the functional and geographical context, and thus its utilization as a predictor of forest dynamics and species coexistence requires previous knowledge on the role it plays in the demographic performance of the species under study.
dc.relation.haspart doi:10.5061/dryad.12b0h/1
dc.relation.haspart doi:10.5061/dryad.12b0h/2
dc.relation.isreferencedby doi:10.1111/1365-2435.12804
dc.subject boreal forests
dc.subject demographic performance
dc.subject functional ecology
dc.subject structural equation modelling
dc.subject temperate forests
dc.subject trait spectra
dc.subject tree life-histories
dc.subject SORTIE
dc.title Data from: Shade tolerance and the functional trait - demography relationship in temperate and boreal forests
dc.type Article
dc.contributor.correspondingAuthor Ameztegui, Aitor
prism.publicationName Functional Ecology
dryad.dansTransferDate 2018-05-12T03:38:20.030+0000
dryad.dansArchiveDate 2018-05-12T05:01:45.180+0000
dryad.dashTransferDate 2019-07-02T03:44:38.490+0000

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Title Demography_LifeHistories
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Description Life histories values for each species and site, as obtained from the parameterization carried out in studies that used the model SORTIE. The data include growth at full light (Growth-L), defined as the time (in years) needed for a sapling with DBH= 1cm to become an adult (DBH=7.5 cm) when light = 100%; growth in shade (Growth-D), as the time (in years) needed for a sapling with DBH= 1cm to become an adult (DBH=7.5 cm) when light = 1%; and survival in shade (Surv-D), defined as the 5-year survivorship of a sapling with DBH = 1cm when light = 1%. The data source of each value can be found in Appendix S2 in the manuscript.
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Title Functional_Traits
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Description Functional trait values for each of the 48 study species, including 23 evergreen and 25 deciduous. Traits include Leaf mass area (LMA), photosynthetic capacity per unit leaf mass (Amass), Leaf N content per unit mass (Nmass), Leaf P content per unit mass (Pmass), Leaf lifespan (LL), Leaf length (Llength), seed mass (SeM), wood density (WD) ad maximum tree height (MaxH).
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