Alien flora of mountains: global comparisons for the development of local preventive measures against plant invasions

Alien flora of mountains: global comparisons for the development of local preventive measures against plant invasions

Aim We use data from 13 mountain regions and surrounding lowland areas to identify (1) the origins, traits and cultural uses of alien plant species that establish in mountains, (2) the alien species that are most likely to be a threat and (3) how managers might use this information to prevent furthe...

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Veröffentlicht in:Diversity and Distributions. - Wiley. - 17(2011), 1, Seite 103-111
1. Verfasser: McDougall, Keith L. (VerfasserIn)
Weitere Verfasser: Alexander, Jake M., Haider, Sylvia, Pauchard, Aníbal, Walsh, Neville G., Kueffer, Christoph
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2011
Zugriff auf das übergeordnete Werk:Diversity and Distributions
Schlagworte:Biological sciences Physical sciences
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100 1 |a McDougall, Keith L.  |e verfasserin  |4 aut 
245 1 0 |a Alien flora of mountains: global comparisons for the development of local preventive measures against plant invasions 
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520 |a Aim We use data from 13 mountain regions and surrounding lowland areas to identify (1) the origins, traits and cultural uses of alien plant species that establish in mountains, (2) the alien species that are most likely to be a threat and (3) how managers might use this information to prevent further invasions. Location Australia, Canada, Chile, India, New Zealand, South Africa, Spain, Switzerland, USA. Methods Lists of alien species were compiled for mountains and their surrounding or nearby lowlands. Principal co-ordinates analysis was performed on a matrix of similarities created using presence/absence data for alien species. The significance of differences between means for (1) similarity metrics of lowland and mountain groups and (2) species traits of lowland and mountain alien floras was determined using t-tests. In seven of the 13 mountain regions, lists of alien species undergoing management were compiled. The significance of differences between proportions of traits for species requiring and not requiring management input was determined with chi-square tests. Results We found that the proximal lowland alien flora is the main determinant of a mountain region's alien species composition. The highest similarities between mountain floras were in the Americas/Pacific Region. The majority of alien species commonly found in mountains have agricultural origins and are of little concern to land managers. Woody species and those used for ornamental purposes will often pose the greatest threat. Main conclusions Given the documented potential threat of alien species invading mountains, we advise natural resource managers to take preventive measures against the risk of alien plant invasion in mountains. A strategy for prevention should extend to the surrounding lowland areas and in particular regulate the introduction of species that are already of management concern in other mountains as well as climatically pre-adapted alien mountain plants. These may well become more problematic than the majority of alien plants currently in mountains. 
540 |a Copyright © 2011 Blackwell Publishing Ltd. 
650 4 |a Biological sciences  |x Biology  |x Biological taxonomies  |x Species  |x Introduced species  |x Invasive species 
650 4 |a Physical sciences  |x Earth sciences  |x Geography  |x Geomorphology  |x Topography  |x Lowlands 
650 4 |a Biological sciences  |x Biology  |x Biological taxonomies  |x Flora 
650 4 |a Biological sciences  |x Biology  |x Botany  |x Plants 
650 4 |a Physical sciences  |x Earth sciences  |x Geography  |x Geomorphology  |x Landforms  |x Tectonic landforms  |x Mountains 
650 4 |a Biological sciences  |x Biology  |x Biological taxonomies  |x Species  |x Introduced species 
650 4 |a Biological sciences  |x Ecology  |x Ecological processes  |x Ecological competition  |x Interspecific competition  |x Ecological invasion  |x Biological invasions  |x Plant invasions 
650 4 |a Biological sciences  |x Biology  |x Biological taxonomies  |x Species  |x Introduced species  |x Introduced plants 
650 4 |a Biological sciences  |x Ecology  |x Ecological processes  |x Ecological competition  |x Interspecific competition  |x Ecological invasion 
650 4 |a Biological sciences  |x Ecology  |x Ecological processes  |x Ecological competition  |x Interspecific competition  |x Ecological invasion  |x Biological invasions  |x BIODIVERSITY RESEARCH 
655 4 |a research-article 
700 1 |a Alexander, Jake M.  |e verfasserin  |4 aut 
700 1 |a Haider, Sylvia  |e verfasserin  |4 aut 
700 1 |a Pauchard, Aníbal  |e verfasserin  |4 aut 
700 1 |a Walsh, Neville G.  |e verfasserin  |4 aut 
700 1 |a Kueffer, Christoph  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Diversity and Distributions  |d Wiley  |g 17(2011), 1, Seite 103-111  |w (DE-627)320600742  |w (DE-600)2020139-4  |x 14724642  |7 nnns 
773 1 8 |g volume:17  |g year:2011  |g number:1  |g pages:103-111 
856 4 0 |u http://dx.doi.org/10.1111/j.1472-4642.2010.00713.x  |3 Volltext 
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