No evidence for an evolutionary increased competitive ability in an invasive plant

van Kleunen, Mark; Schmid, Berhard

No evidence for an evolutionary increased competitive ability in an invasive plant

Dateien

vanKleunen_Schmid.pdfGröße: 139.97 KBDownloads: 842

Datum

2003

Autor:innen

van Kleunen, Mark

Schmid, Berhard

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Biologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Ecology. 2003, 84(11), pp. 2816-2823. ISSN 0012-9658. Available under: doi: 10.1890/02-0494

Zusammenfassung

We tested whether Solidago canadensis, which was introduced from North America into Europe from the 17th century onward, has evolved an increased competitive ability (EICA) at the cost of tolerance against herbivory in its new range. We grew plants from nine introduced European and 10 native American populations in a common garden in Europe. In half of the plants, we simulated herbivory by removing 50% of the leaf area and by spraying them with jasmonic acid. Although plants from Europe had 30.5% larger leaves, they had 27.4% smaller inflorescences and tended to grow less tall (27.0%) and produce fewer vegetative offspring (25.0%) than plants from North America. The simulated herbivory treatment did not result in any significant differences in height, inflorescence biomass, or number of vegetative offspring between treatment and control plants. Moreover, there were no significant differences in the response of European and American plants to simulated herbivory, indicating that they did not differ in their tolerance against herbivory. We conclude that the EICA-hypothesis does not hold in the case of the S. canadensis complex, and the worldwide invasion success of this species must be based on other mechanisms.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

alien species, biological invasions, EICA hypothesis, evolution, goldenrod, nonindigenous species, response to herbivory, Solidago canadensis

Zitieren

ISO 690

VAN KLEUNEN, Mark, Berhard SCHMID, 2003. No evidence for an evolutionary increased competitive ability in an invasive plant. In: Ecology. 2003, 84(11), pp. 2816-2823. ISSN 0012-9658. Available under: doi: 10.1890/02-0494

BibTex

@article{vanKleunen2003evide-13503,
  year={2003},
  doi={10.1890/02-0494},
  title={No evidence for an evolutionary increased competitive ability in an invasive plant},
  number={11},
  volume={84},
  issn={0012-9658},
  journal={Ecology},
  pages={2816--2823},
  author={van Kleunen, Mark and Schmid, Berhard}
}

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    <dcterms:abstract xml:lang="eng">We tested whether Solidago canadensis, which was introduced from North America into Europe from the 17th century onward, has evolved an increased competitive ability (EICA) at the cost of tolerance against herbivory in its new range. We grew plants from nine introduced European and 10 native American populations in a common garden in Europe. In half of the plants, we simulated herbivory by removing 50% of the leaf area and by spraying them with jasmonic acid. Although plants from Europe had 30.5% larger leaves, they had 27.4% smaller inflorescences and tended to grow less tall (27.0%) and produce fewer vegetative offspring (25.0%) than plants from North America. The simulated herbivory treatment did not result in any significant differences in height, inflorescence biomass, or number of vegetative offspring between treatment and control plants. Moreover, there were no significant differences in the response of European and American plants to simulated herbivory, indicating that they did not differ in their tolerance against herbivory. We conclude that the EICA-hypothesis does not hold in the case of the S. canadensis complex, and the worldwide invasion success of this species must be based on other mechanisms.</dcterms:abstract>
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