Giant invasive Heracleum persicum: Friend or foe of plant diversity?
Abstract The impact of invasion on diversity varies widely and remains elusive. Despite the considerable attempts to understand mechanisms of biological invasion, it is largely unknown whether some communities’ characteristics promote biological invasion, or whether some inherent characteristics of...
Published in: | Ecology and Evolution |
---|---|
Main Authors: | , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2017
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/ece3.3055 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.3055 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.3055 |
id |
crwiley:10.1002/ece3.3055 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/ece3.3055 2024-09-15T18:25:53+00:00 Giant invasive Heracleum persicum: Friend or foe of plant diversity? Rijal, Dilli P. Alm, Torbjørn Nilsen, Lennart Alsos, Inger G. Universitetet i Tromsø 2017 http://dx.doi.org/10.1002/ece3.3055 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.3055 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.3055 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Ecology and Evolution volume 7, issue 13, page 4936-4950 ISSN 2045-7758 2045-7758 journal-article 2017 crwiley https://doi.org/10.1002/ece3.3055 2024-08-13T04:14:10Z Abstract The impact of invasion on diversity varies widely and remains elusive. Despite the considerable attempts to understand mechanisms of biological invasion, it is largely unknown whether some communities’ characteristics promote biological invasion, or whether some inherent characteristics of invaders enable them to invade other communities. Our aims were to assess the impact of one of the massive plant invaders of Scandinavia on vascular plant species diversity, disentangle attributes of invasible and noninvasible communities, and evaluate the relationship between invasibility and genetic diversity of a dominant invader. We studied 56 pairs of Heracleum persicum Desf. ex Fisch.‐invaded and noninvaded plots from 12 locations in northern Norway. There was lower native cover, evenness, taxonomic diversity, native biomass, and species richness in the invaded plots than in the noninvaded plots. The invaded plots had nearly two native species fewer than the noninvaded plots on average. Within the invaded plots, cover of H. persicum had a strong negative effect on the native cover, evenness, and native biomass, and a positive association with the height of the native plants. Plant communities containing only native species appeared more invasible than those that included exotic species, particularly H. persicum . Genetic diversity of H. persicum was positively correlated with invasibility but not with community diversity. The invasion of a plant community by H. persicum exerts consistent negative pressure on vascular plant diversity. The lack of positive correlation between impacts and genetic diversity of H. persicum indicates that even a small founder population may cause high impact. We highlight community stability or saturation as an important determinant of invasibility. While the invasion by H. persicum may decrease susceptibility of a plant community to further invasion, it severely reduces the abundance of native species and makes them more vulnerable to competitive exclusion. Article in Journal/Newspaper Northern Norway Wiley Online Library Ecology and Evolution 7 13 4936 4950 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract The impact of invasion on diversity varies widely and remains elusive. Despite the considerable attempts to understand mechanisms of biological invasion, it is largely unknown whether some communities’ characteristics promote biological invasion, or whether some inherent characteristics of invaders enable them to invade other communities. Our aims were to assess the impact of one of the massive plant invaders of Scandinavia on vascular plant species diversity, disentangle attributes of invasible and noninvasible communities, and evaluate the relationship between invasibility and genetic diversity of a dominant invader. We studied 56 pairs of Heracleum persicum Desf. ex Fisch.‐invaded and noninvaded plots from 12 locations in northern Norway. There was lower native cover, evenness, taxonomic diversity, native biomass, and species richness in the invaded plots than in the noninvaded plots. The invaded plots had nearly two native species fewer than the noninvaded plots on average. Within the invaded plots, cover of H. persicum had a strong negative effect on the native cover, evenness, and native biomass, and a positive association with the height of the native plants. Plant communities containing only native species appeared more invasible than those that included exotic species, particularly H. persicum . Genetic diversity of H. persicum was positively correlated with invasibility but not with community diversity. The invasion of a plant community by H. persicum exerts consistent negative pressure on vascular plant diversity. The lack of positive correlation between impacts and genetic diversity of H. persicum indicates that even a small founder population may cause high impact. We highlight community stability or saturation as an important determinant of invasibility. While the invasion by H. persicum may decrease susceptibility of a plant community to further invasion, it severely reduces the abundance of native species and makes them more vulnerable to competitive exclusion. |
author2 |
Universitetet i Tromsø |
format |
Article in Journal/Newspaper |
author |
Rijal, Dilli P. Alm, Torbjørn Nilsen, Lennart Alsos, Inger G. |
spellingShingle |
Rijal, Dilli P. Alm, Torbjørn Nilsen, Lennart Alsos, Inger G. Giant invasive Heracleum persicum: Friend or foe of plant diversity? |
author_facet |
Rijal, Dilli P. Alm, Torbjørn Nilsen, Lennart Alsos, Inger G. |
author_sort |
Rijal, Dilli P. |
title |
Giant invasive Heracleum persicum: Friend or foe of plant diversity? |
title_short |
Giant invasive Heracleum persicum: Friend or foe of plant diversity? |
title_full |
Giant invasive Heracleum persicum: Friend or foe of plant diversity? |
title_fullStr |
Giant invasive Heracleum persicum: Friend or foe of plant diversity? |
title_full_unstemmed |
Giant invasive Heracleum persicum: Friend or foe of plant diversity? |
title_sort |
giant invasive heracleum persicum: friend or foe of plant diversity? |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1002/ece3.3055 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fece3.3055 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ece3.3055 |
genre |
Northern Norway |
genre_facet |
Northern Norway |
op_source |
Ecology and Evolution volume 7, issue 13, page 4936-4950 ISSN 2045-7758 2045-7758 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/ece3.3055 |
container_title |
Ecology and Evolution |
container_volume |
7 |
container_issue |
13 |
container_start_page |
4936 |
op_container_end_page |
4950 |
_version_ |
1810466356132315136 |