Climatic niche conservatism in non-native plants depends on introduction history and biogeographic context DOI Creative Commons
Anna Rönnfeldt, Valén Holle, Katrin Schifferle

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Abstract Many tools informing preventive invasion management build on the assumption that introduced species will conserve their climatic niches outside native ranges. Previous research testing validity of this found contradictory results regarding niche conservatism vs. switching for non-native species. An open question is in how far these contradictions reflect context dependency, yet only few studies compared dynamics to multiple regions. Here, we used an ordination-based approach quantify changes (stability, unfilling, expansion) 316 plant eight different regions across world, including Pacific region with extreme isolation between island groups. We then performed phylogenetic regressions assess regional and species’ characteristics affect dynamics. Niche varied regions, even within While expansion into previously unoccupied climates was generally low, unfilling strongly Generally, region-specific introduction history biogeographic attributes were more important explaining than ecological traits. consistently higher small range sizes, stability increased. In contrast, decreased time since which could suggest lack observed many might be transient potentially related dispersal limitations. Overall, our shed light dependency when are new highlighting should accounted assessing potential changes. Significance Statement As by humans, they may occupy same conditions as ranges, leave parts unfilled or expanding conditions. Knowing extent occur essential understanding managing biological invasions. evaluate differences plants world. marked variation influenced factors such has passed introduced, both These findings indicate a apparent likely temporary phenomenon.

Language: Английский

Climatic niche conservatism in non-native plants depends on introduction history and biogeographic context DOI Creative Commons
Anna Rönnfeldt, Valén Holle, Katrin Schifferle

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Abstract Many tools informing preventive invasion management build on the assumption that introduced species will conserve their climatic niches outside native ranges. Previous research testing validity of this found contradictory results regarding niche conservatism vs. switching for non-native species. An open question is in how far these contradictions reflect context dependency, yet only few studies compared dynamics to multiple regions. Here, we used an ordination-based approach quantify changes (stability, unfilling, expansion) 316 plant eight different regions across world, including Pacific region with extreme isolation between island groups. We then performed phylogenetic regressions assess regional and species’ characteristics affect dynamics. Niche varied regions, even within While expansion into previously unoccupied climates was generally low, unfilling strongly Generally, region-specific introduction history biogeographic attributes were more important explaining than ecological traits. consistently higher small range sizes, stability increased. In contrast, decreased time since which could suggest lack observed many might be transient potentially related dispersal limitations. Overall, our shed light dependency when are new highlighting should accounted assessing potential changes. Significance Statement As by humans, they may occupy same conditions as ranges, leave parts unfilled or expanding conditions. Knowing extent occur essential understanding managing biological invasions. evaluate differences plants world. marked variation influenced factors such has passed introduced, both These findings indicate a apparent likely temporary phenomenon.

Language: Английский

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