Invasive clonal plant species have a greater root-foraging plasticity than non-invasive ones

Keser, Lidewij; Dawson, Wayne; Song, Yao-Bin; Yu, Fei‑Hai; Fischer, Markus; Dong, Ming; van Kleunen, Mark (2014). Invasive clonal plant species have a greater root-foraging plasticity than non-invasive ones. Oecologia, 174(3), pp. 1055-1064. Springer 10.1007/s00442-013-2829-y

[img] Text
keser_fischer.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (308kB) | Request a copy

Clonality is frequently positively correlated with plant invasiveness, but which aspects of clonality make some clonal species more invasive than others is not known. Due to their spreading growth form, clonal plants are likely to experience spatial heterogeneity in nutrient availability. Plasticity in allocation of biomass to clonal growth organs and roots may allow these plants to forage for high-nutrient patches. We investigated whether this foraging response is stronger in species that have become invasive than in species that have not. We used six confamilial pairs of native European clonal plant species differing in invasion success in the USA. We grew all species in large pots under homogeneous or heterogeneous nutrient conditions in a greenhouse, and compared their nutrient-foraging response and performance. Neither invasive nor non-invasive species showed significant foraging responses to heterogeneity in clonal growth organ biomass or in aboveground biomass of clonal offspring. Invasive species had, however, a greater positive foraging response in terms of root and belowground biomass than non-invasive species. Invasive species also produced more total biomass. Our results suggest that the ability for strong root foraging is among the characteristics promoting invasiveness in clonal plants.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Plant Ecology

UniBE Contributor:

Keser, Lidewij; Dawson, Wayne; Fischer, Markus and van Kleunen, Mark

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

0029-8549

Publisher:

Springer

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

03 Mar 2014 14:43

Last Modified:

08 Sep 2015 11:46

Publisher DOI:

10.1007/s00442-013-2829-y

Uncontrolled Keywords:

clonal growth; nutrient heterogeneity; nutrient foraging; Plant invasion; Pre-adaptation

BORIS DOI:

10.7892/boris.42598

URI:

https://boris.unibe.ch/id/eprint/42598

Actions (login required)

Edit item Edit item
Provide Feedback