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Settlements as a source for the spread of non-native plants into Central European suburban forests

Gaggini, Luca and Rusterholz, Hans-Peter and Baur, Bruno. (2017) Settlements as a source for the spread of non-native plants into Central European suburban forests. Acta Oecologica, 79. pp. 18-25.

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Official URL: http://edoc.unibas.ch/58970/

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Abstract

Urbanization is considered as a major driver for biotic homogenization. Urbanization also promotes the dispersal of non-native species. This study examined the roles of suburban settlements and of the surrounding landscape composition for the spread of non-native plant species into adjacent mixed deciduous forests in Southern and Northwestern Switzerland. The number and abundance of native and non-native vascular plant species in both the ground vegetation and shrub layer were recorded in 15 forest sites situated adjacent to settlements and 15 control sites far from settlements. Various site and landscape characteristics were assessed in the surroundings (100 m radius) of the study sites. In both regions we found a higher number and larger abundance of non-native plant species in forest sites adjacent to settlements than in control forest sites. Furthermore, non-native plants were more frequently recorded close to roads and in sites surrounded by a large percentage cover of garden. All these effects were more pronounced in Southern Switzerland, a region with milder winter climate, than in Northwestern Switzerland. Our study showed that settlements are a source for the spread of non-native plant species into Central European suburban forests, and that the composition of the surrounding landscape matrix (e.g. traffic infrastructure, percentage cover of gardens) also affects the establishment of non-native plants.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Natur- Landschafts- und Umweltschutz > Naturschutzbiologie (Baur)
UniBasel Contributors:Baur, Bruno and Gaggini, Luca and Rusterholz, Hans-Peter
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Elsevier
ISSN:1146-609X
e-ISSN:1873-6238
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:18 Jun 2018 12:37
Deposited On:18 Jun 2018 12:37

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