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Niche dynamics of alien species do not differ among sexual and apomictic flowering plants

Dellinger, A.; Essl, F.; Hojsgaard, D.; Kirchheimer, B.; Klatt, S.; Dawson, W.; Pergl, J.; Pyšek, P.; van Kleunen, M.; Weber, E.; Winter, M.; Hörandl, E.; Dullinger, S.

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Authors

A. Dellinger

F. Essl

D. Hojsgaard

B. Kirchheimer

S. Klatt

J. Pergl

P. Pyšek

M. van Kleunen

E. Weber

M. Winter

E. Hörandl

S. Dullinger



Abstract

Biological invasions can be associated with shifts of the species’ climatic niches but the incidence of such shifts is under debate. The reproductive system might be a key factor controlling such shifts because it influences a species’ evolutionary flexibility. However, the link between reproductive systems and niche dynamics in plant invasions has been little studied so far. We compiled global occurrence data sets of 13 congeneric sexual and apomictic species pairs, and used principal components analysis (PCA) and kernel smoothers to compare changes in climatic niche optima, breadths and unfilling/expansion between native and alien ranges. Niche change metrics were compared between sexual and apomictic species. All 26 species showed changes in niche optima and/or breadth and 14 species significantly expanded their climatic niches. However, we found no effect of the reproductive system on niche dynamics. Instead, species with narrower native niches showed higher rates of niche expansion in the alien ranges. Our results suggest that niche shifts are frequent in plant invasions but evolutionary potential may not be of major importance for such shifts. Niche dynamics rather appear to be driven by changes of the realized niche without adaptive change of the fundamental climatic niche.

Citation

Dellinger, A., Essl, F., Hojsgaard, D., Kirchheimer, B., Klatt, S., Dawson, W., …Dullinger, S. (2016). Niche dynamics of alien species do not differ among sexual and apomictic flowering plants. New Phytologist, 209(3), 1313-1323. https://doi.org/10.1111/nph.13694

Journal Article Type Article
Acceptance Date Aug 31, 2015
Online Publication Date Oct 28, 2015
Publication Date Feb 1, 2016
Deposit Date Jan 4, 2016
Publicly Available Date Apr 14, 2016
Journal New Phytologist
Print ISSN 0028-646X
Electronic ISSN 1469-8137
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 209
Issue 3
Pages 1313-1323
DOI https://doi.org/10.1111/nph.13694

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
© 2015 The Authors. New Phytologist © 2015 New Phytologist Trust This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.




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