Fronts, jumps and secondary introductions suggested as different invasion patterns in marine species, with an increase in spread rates over time
Not all introduced (invasive) species in a region will spread from a single point of introduction. Long-distance dispersal or further introductions can obscure the pattern of spread, but the regional importance of such processes is difficult to gauge. These difficulties are further compounded when i...
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ftpubmed:oai:pubmedcentral.nih.gov:2982048 2023-05-15T17:41:28+02:00 Fronts, jumps and secondary introductions suggested as different invasion patterns in marine species, with an increase in spread rates over time Mineur, Frédéric Davies, Andrew J. Maggs, Christine A. Verlaque, Marc Johnson, Mark P. 2010-09-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2982048 http://www.ncbi.nlm.nih.gov/pubmed/20410039 https://doi.org/10.1098/rspb.2010.0494 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2982048 http://www.ncbi.nlm.nih.gov/pubmed/20410039 http://dx.doi.org/10.1098/rspb.2010.0494 © 2010 The Royal Society Research Articles Text 2010 ftpubmed https://doi.org/10.1098/rspb.2010.0494 2013-09-03T07:32:09Z Not all introduced (invasive) species in a region will spread from a single point of introduction. Long-distance dispersal or further introductions can obscure the pattern of spread, but the regional importance of such processes is difficult to gauge. These difficulties are further compounded when information on the multiple scale process of invasive species range expansion is reduced to one-dimensional estimates of spread (e.g. km yr−1). We therefore compared the results of two different metrics of range expansion: maximum linear rate of spread and accumulation of occupied grid squares (50 × 50 km) over time. An analysis of records for 54 species of introduced marine macrophytes in the Mediterranean and northeast Atlantic revealed cases where the invasion process was probably missed (e.g. Atlantic Bonnemaisonia hamifera) and suggested cases of secondary introductions or erratic jump dispersal (Dasysiphonia sp. and Womersleyella setacea). A majority of species analysed showed evidence for an accumulation of invaded sites without a clear invasion front. Estimates of spread rate are increasing for more recent introductions. The increase is greater than can be accounted for by temporally varying search effort and implies a historical increase in vector efficiency and/or a decreased resistance of native communities to invasion. Text Northeast Atlantic PubMed Central (PMC) Proceedings of the Royal Society B: Biological Sciences 277 1694 2693 2701 |
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Research Articles Mineur, Frédéric Davies, Andrew J. Maggs, Christine A. Verlaque, Marc Johnson, Mark P. Fronts, jumps and secondary introductions suggested as different invasion patterns in marine species, with an increase in spread rates over time |
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Research Articles |
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Not all introduced (invasive) species in a region will spread from a single point of introduction. Long-distance dispersal or further introductions can obscure the pattern of spread, but the regional importance of such processes is difficult to gauge. These difficulties are further compounded when information on the multiple scale process of invasive species range expansion is reduced to one-dimensional estimates of spread (e.g. km yr−1). We therefore compared the results of two different metrics of range expansion: maximum linear rate of spread and accumulation of occupied grid squares (50 × 50 km) over time. An analysis of records for 54 species of introduced marine macrophytes in the Mediterranean and northeast Atlantic revealed cases where the invasion process was probably missed (e.g. Atlantic Bonnemaisonia hamifera) and suggested cases of secondary introductions or erratic jump dispersal (Dasysiphonia sp. and Womersleyella setacea). A majority of species analysed showed evidence for an accumulation of invaded sites without a clear invasion front. Estimates of spread rate are increasing for more recent introductions. The increase is greater than can be accounted for by temporally varying search effort and implies a historical increase in vector efficiency and/or a decreased resistance of native communities to invasion. |
format |
Text |
author |
Mineur, Frédéric Davies, Andrew J. Maggs, Christine A. Verlaque, Marc Johnson, Mark P. |
author_facet |
Mineur, Frédéric Davies, Andrew J. Maggs, Christine A. Verlaque, Marc Johnson, Mark P. |
author_sort |
Mineur, Frédéric |
title |
Fronts, jumps and secondary introductions suggested as different invasion patterns in marine species, with an increase in spread rates over time |
title_short |
Fronts, jumps and secondary introductions suggested as different invasion patterns in marine species, with an increase in spread rates over time |
title_full |
Fronts, jumps and secondary introductions suggested as different invasion patterns in marine species, with an increase in spread rates over time |
title_fullStr |
Fronts, jumps and secondary introductions suggested as different invasion patterns in marine species, with an increase in spread rates over time |
title_full_unstemmed |
Fronts, jumps and secondary introductions suggested as different invasion patterns in marine species, with an increase in spread rates over time |
title_sort |
fronts, jumps and secondary introductions suggested as different invasion patterns in marine species, with an increase in spread rates over time |
publisher |
The Royal Society |
publishDate |
2010 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2982048 http://www.ncbi.nlm.nih.gov/pubmed/20410039 https://doi.org/10.1098/rspb.2010.0494 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2982048 http://www.ncbi.nlm.nih.gov/pubmed/20410039 http://dx.doi.org/10.1098/rspb.2010.0494 |
op_rights |
© 2010 The Royal Society |
op_doi |
https://doi.org/10.1098/rspb.2010.0494 |
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Proceedings of the Royal Society B: Biological Sciences |
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277 |
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1694 |
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2693 |
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2701 |
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1766143043249897472 |