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Alien species in the Finnish weed flora

Hyvönen, Terho and Jalli, Heikki (2011) Alien species in the Finnish weed flora. Agricultural and Food Science, 20 (1), pp. 86-95.

PDF - English
PDF - English

Online at: http://www.mtt.fi/afs/pdf/mtt-afs-v20n1p86.pdf


The present study aimed at assessing the invasion of alien weed species in Finland based on a review of their occurrence in the Finnish weed flora. The evaluation was conducted for the three phases of the invasion process, i.e. introduction, naturalization and invasion. The literature review revealed that 815 alien weed species occur in Finland of which 314 are regarded as naturalized. Based on their occurrence in different climate zones, the risk of naturalization of new harmful alien weed species was deemed low for those species not currently found in Finland, but higher for species occurring as casual aliens in Finland. In the latter group, 10 species of concern were detected. Exploration of the distribution patterns of naturalized species within Finland revealed species occupancy to be dependent on the residence time of the species. Established neophytes can be expected to extend their ranges and to increase occupation of agricultural habitats in the future.

EPrint Type:Journal paper
Keywords:climate change, Finland, invasive species, weed management
Subjects: Crop husbandry > Weed management
Research affiliation: Finland > Luke Natural Resources Institute
Deposited By: Koistinen, Riitta
ID Code:19440
Deposited On:22 Sep 2011 12:05
Last Modified:22 Sep 2011 12:05
Document Language:English
Refereed:Peer-reviewed and accepted

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