Realized climatic niches are conserved along maximum temperatures among herpetofaunal invaders

Détails

ID Serval
serval:BIB_6D03B2883F32
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Realized climatic niches are conserved along maximum temperatures among herpetofaunal invaders
Périodique
Journal of Biogeography
Auteur(s)
Liu X., Petitpierre B., Broennimann O., Li X., Guisan A., Li Y.
ISSN
1365-2699
ISSN-L
0305-0270
Statut éditorial
Publié
Date de publication
2017
Peer-reviewed
Oui
Volume
44
Numéro
1
Pages
111-121
Langue
anglais
Résumé
Aim: The conservatism of realized climatic niche is a pivotal assumption for predicting invasion risk under present and future climate, but to date, no study has examined which dimensions of realized climatic niches are spatially and temporally conserved for a whole taxonomic group at a global scale. Understanding realized niche dynamics along each individual climatic variable separately is key to improving forecasts of invasive species distributions and anticipating future spreads.
Location: Global.
Methods: Using 181 successful invasion events for 128 alien herpetofaunal species across the globe, we apply a robust niche dynamics framework and analyse the conservatism of realized climatic niche and their influencing factors along different 19 temperature and precipitation variables.
Results: We find that the magnitude of the niche shift along the maximum temperature of the warmest month (or warmest quarter) is on average the lowest compared with minimum, average, range and seasonal temperature characteristics and all precipitation variables. Furthermore, the amount of niche shift along the maximum temperatures is only negatively correlated with native range size and is unrelated to residence time, species traits, introduction propagule pressure, topographic heterogeneity, or equatorward and poleward range expansion.
Main Conclusions: We provide the first evidence that the realized climatic niche of alien herpetofaunal species is generally most conserved along maximum temperatures. This finding highlights the importance of preferentially choosing conserved climatic niches to develop robust predictions of biological invasions or responses to climate change.
Mots-clé
biological invasions, climate change, niche conservatism, niche limits, niche shift, realized climatic niche
Web of science
Création de la notice
27/04/2016 9:16
Dernière modification de la notice
20/08/2019 14:26
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