Locomotor activity of two sympatric slugs: implication for the invasion success of terrestrial invertebrates.

Knop, Eva; Rindlisbacher, Nicole; Ryser, Sophie; Grüebler, Martin U. (2013). Locomotor activity of two sympatric slugs: implication for the invasion success of terrestrial invertebrates. Ecosphere, 4 (8)(92), pp. 1-8. Ecological Society of America 10.1890/ES13-00154.1

[img]
Preview
Text
Knop_Ecosphere_2013.pdf - Published Version
Available under License Creative Commons: Attribution (CC-BY).

Download (492kB) | Preview

A central focus of invasion biology is to identify the traits that predict which introduced species will become invasive. Behavioral traits related to locomotor activity most likely play a pivotal role in determining a species’invasion success but have rarely been studied, particularly in terrestrial invertebrates. Here, we experimentally investigated the small-scale locomotor activity of two slug species with divergent invasion success in Europe, the highly invasive slug, Arion lusitanicus, and the closely related, non-invasive and native slug, Arion rufus. To do so, we used a multi-state capture-mark-recapture approach, and hypothesized that the invasive slug has a higher moving rate (keeps on moving) and leaving rate (leaves more frequently known places). A total of 221 invasive and 241 non-invasive slugs were individually marked using magnetic transponders and released in three study sites differing in habitat type. The slugs were recaptured using shelter traps, and moving and leaving rates were estimated. Both rates were significantly higher for the invasive slug, demonstrating a higher locomotor activity which might partly explain its invasion success. Our results provide evidence for the recently suggested idea that locomotor activity might be an important trait underlying animal invasions using for the first time terrestrial invertebrates.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE)
08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) > Community Ecology

UniBE Contributor:

Knop, Eva; Rindlisbacher, Nicole and Ryser, Sophie

Subjects:

500 Science > 570 Life sciences; biology

ISSN:

2150-8925

Publisher:

Ecological Society of America

Language:

English

Submitter:

Alexander Strauss

Date Deposited:

12 Apr 2014 10:32

Last Modified:

16 Dec 2014 21:14

Publisher DOI:

10.1890/ES13-00154.1

BORIS DOI:

10.7892/boris.47486

URI:

https://boris.unibe.ch/id/eprint/47486

Actions (login required)

Edit item Edit item
Provide Feedback