Less favourable climates constrain demographic strategies in plants.

Détails

ID Serval
serval:BIB_C01AC8D5AC04
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Lettre (letter): communication adressée à l'éditeur.
Collection
Publications
Titre
Less favourable climates constrain demographic strategies in plants.
Périodique
Ecology letters
Auteur(s)
Csergő A.M., Salguero-Gómez R., Broennimann O., Coutts S.R., Guisan A., Angert A.L., Welk E., Stott I., Enquist B.J., McGill B., Svenning J.C., Violle C., Buckley Y.M.
ISSN
1461-0248 (Electronic)
ISSN-L
1461-023X
Statut éditorial
Publié
Date de publication
2017
Peer-reviewed
Oui
Volume
20
Numéro
8
Pages
969-980
Langue
anglais
Résumé
Correlative species distribution models are based on the observed relationship between species' occurrence and macroclimate or other environmental variables. In climates predicted less favourable populations are expected to decline, and in favourable climates they are expected to persist. However, little comparative empirical support exists for a relationship between predicted climate suitability and population performance. We found that the performance of 93 populations of 34 plant species worldwide - as measured by in situ population growth rate, its temporal variation and extinction risk - was not correlated with climate suitability. However, correlations of demographic processes underpinning population performance with climate suitability indicated both resistance and vulnerability pathways of population responses to climate: in less suitable climates, plants experienced greater retrogression (resistance pathway) and greater variability in some demographic rates (vulnerability pathway). While a range of demographic strategies occur within species' climatic niches, demographic strategies are more constrained in climates predicted to be less suitable.

Mots-clé
COMPADRE Plant Matrix Database, Climate change, demographic compensation, ecological niche models, matrix population models, population dynamics, spatial demography, species distribution models, species interactions-abiotic stress hypothesis, stress gradient hypothesis
Pubmed
Web of science
Open Access
Oui
Création de la notice
22/06/2017 16:37
Dernière modification de la notice
20/08/2019 15:34
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