Characteristics of the soil seed bank of invasive and non-invasive plants in their native and alien distribution range

0509533 - BÚ 2020 RIV NL eng J - Journal Article
Gioria, Margherita - Le Roux, J. J. - Hirsch, H. - Moravcová, Lenka - Pyšek, Petr
Characteristics of the soil seed bank of invasive and non-invasive plants in their native and alien distribution range.
Biological Invasions. Roč. 21, č. 7 (2019), s. 2313-2332. ISSN 1387-3547. E-ISSN 1573-1464
R&D Projects: GA ČR GA15-13491S; GA ČR(CZ) GA19-20405S; GA ČR(CZ) GX19-28807X
Grant - others:AV ČR(CZ) AP1002
Program: Akademická prémie - Praemium Academiae
Institutional support: RVO:67985939
Keywords : native and invaded range * seed bank * invasiveness
OECD category: Ecology
Impact factor: 3.087, year: 2019
Method of publishing: Limited access

The ability to form persistent seed banks might contribute to the invasion potential of alien plants in their new distribution ranges. Using the largest seed bank dataset collated to date, comprising 14,293 records for 2566 species, we examined whether the type (transient vs persistent) and density of the seed banks of invasive species differ in their native (home) and alien (abroad) range, and whether these attributes differ among invasive and non-invasive congeners, at home and abroad. A lower probability of forming a persistent seed bank in the alien range was identified when analyzing data for 140 invasive species, although phylogenetic analyses run for 104 of those species did not confirm such differences. However, invasive woody species formed denser seed banks in the alien range, suggesting greater seed production and/or lower seed predation or mortality in the alien than native range. Interestingly, invasive species consistently showed a higher probability of forming persistent seed banks as well as denser seed banks than their non-invasive congeners in their native range, but not in their alien range. These findings provide the first quantitative evidence, based on a large number of species globally, of preadaptation with respect to species life-history traits resulting in the formation of a persistent seed bank in invasive species compared to their non-invasive congeners. The fact that both invasive and non-invasive congeners have similar probabilities of forming persistent seed banks abroad suggests that this might be an important attribute for the establishment of alien species in new ranges (naturalization phase), but not for their spread (invasion phase).
Permanent Link: http://hdl.handle.net/11104/0301333