Genetic Allee effects on performance, plasticity and developmental stability in a clonal plant

Fischer, Markus; van Kleunen, Mark; Schmid, Bernhard

Genetic Allee effects on performance, plasticity and developmental stability in a clonal plant

Dateien

van Kleunen.pdfGröße: 17.52 MBDownloads: 523

Datum

2008

Autor:innen

Fischer, Markus

van Kleunen, Mark

Schmid, Bernhard

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Biologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Ecology Letters. 2008, 3(6), pp. 530-539. ISSN 1461-023X. Available under: doi: 10.1111/j.1461-0248.2000.00188.x

Zusammenfassung

Negative effects of small population size on fitness, so-called Allee effects, may threaten population persistence even in intacts habitat remnants. We studied genotypes of 14 isolated populations of the clonal plant Ranunculus reptans, for which molecular genetic (RAPD-) variability is higher for large than for small populations. In a competition-free greenhouse environment vegetative offspring of genotypes from large populations produced more rosettes and flowers, indicating higher fitness. Within-genotype coefficients of variation in performance traits, indicating developmental instability, were lower for genotypes from populations with higher RAPD-variability. In competition with a taller grass, we found relative reduction in leaf length less pronounced for plants from large populations, suggesting higher adaptive plasticity. Our experimental study of a plant with predominantly vegetative reproduction suggests, that negative genetic effects of recent habitat fragmentation, which so far rather were expected in plants with frequent sexual reproduction, are more severe and more common that preciously acknowledged.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

Adaptive phenotypic plasticity, Allee effect, clonal plant, conservation, developmental instability, genetic erosion, population size, rare plant, vegetative reproduction

Zitieren

ISO 690

FISCHER, Markus, Mark VAN KLEUNEN, Bernhard SCHMID, 2008. Genetic Allee effects on performance, plasticity and developmental stability in a clonal plant. In: Ecology Letters. 2008, 3(6), pp. 530-539. ISSN 1461-023X. Available under: doi: 10.1111/j.1461-0248.2000.00188.x

BibTex

@article{Fischer2008Genet-12467,
  year={2008},
  doi={10.1111/j.1461-0248.2000.00188.x},
  title={Genetic Allee effects on performance, plasticity and developmental stability in a clonal plant},
  number={6},
  volume={3},
  issn={1461-023X},
  journal={Ecology Letters},
  pages={530--539},
  author={Fischer, Markus and van Kleunen, Mark and Schmid, Bernhard}
}

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