Phylogenetic conservatism in plant phenology

Détails

Ressource 1Télécharger: BIB_1EDDC30023B4.P001.pdf (644.58 [Ko])
Etat: Serval
Version: Final published version
ID Serval
serval:BIB_1EDDC30023B4
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Phylogenetic conservatism in plant phenology
Périodique
Journal of Ecology
Auteur(s)
Davies T.J., Wolkovich E.M., Kraft N.J.B., Salamin N., Allen J.M., Ault T.R., Betancourt J.L., Bolmgren K., Cleland E.E., Cook B.I., Crimmins T.M., Mazer S.J., McCabe G.J., Pau S., Regetz J., Schwartz M.D., Travers S.E.
ISSN
0022-0477
Statut éditorial
Publié
Date de publication
2013
Volume
101
Numéro
6
Pages
1520-1530
Langue
anglais
Résumé
Phenological events - defined points in the life cycle of a plant or animal - have been regarded as highly plastic traits, reflecting flexible responses to various environmental cues. The ability of a species to track, via shifts in phenological events, the abiotic environment through time might dictate its vulnerability to future climate change. Understanding the predictors and drivers of phenological change is therefore critical. Here, we evaluated evidence for phylogenetic conservatism - the tendency for closely related species to share similar ecological and biological attributes - in phenological traits across flowering plants. We aggregated published and unpublished data on timing of first flower and first leaf, encompassing 4000 species at 23 sites across the Northern Hemisphere. We reconstructed the phylogeny for the set of included species, first, using the software program Phylomatic, and second, from DNA data. We then quantified phylogenetic conservatism in plant phenology within and across sites. We show that more closely related species tend to flower and leaf at similar times. By contrasting mean flowering times within and across sites, however, we illustrate that it is not the time of year that is conserved, but rather the phenological responses to a common set of abiotic cues. Our findings suggest that species cannot be treated as statistically independent when modelling phenological responses.Synthesis. Closely related species tend to resemble each other in the timing of their life-history events, a likely product of evolutionarily conserved responses to environmental cues. The search for the underlying drivers of phenology must therefore account for species' shared evolutionary histories.
Mots-clé
climate change, flowering times, phenology, phylogenetic conservatism, plant-climate interactions, plasticity, spring indices
Web of science
Création de la notice
14/11/2013 10:34
Dernière modification de la notice
03/03/2018 14:36
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