Inter-specific competitive stress does not affect the magnitude of inbreeding depression

Willi, Yvonne; Dietrich, Stefan; van Kleunen, Mark; Fischer, Markus

Inter-specific competitive stress does not affect the magnitude of inbreeding depression

Dateien

vanKleunen_EER.pdfGröße: 111.58 KBDownloads: 229

Datum

2007

Autor:innen

Willi, Yvonne

Dietrich, Stefan

van Kleunen, Mark

Fischer, Markus

URI (zitierfähiger Link)

http://nbn-resolving.de/urn:nbn:de:bsz:352-135073

Link zur Lizenz

Urheberrechtlich geschützt

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Biologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Evolutionary Ecology Research. 2007, 9, pp. 959-974. ISSN 1522-0613. eISSN 1937-3791

Zusammenfassung

Hypothesis: Stressful inter-specific competition enhances inbreeding depression.
Organisms: Creeping spearwort (Ranunculus reptans L.) and its common competitor, the
creeping bentgrass (Agrostis stolonifera L.).
Field site: Outdoor common garden experiment at the University of Potsdam.
Methods: We collected plants of 12 natural populations of R. reptans differing in mean parental inbreeding coefficient (0.01–0.26). We performed within-population crosses for two
generations and kept the offspring in a common environment. In the second generation, we raised plants in the presence or absence of the grass competitor A. stolonifera. After 2 months,
we assessed survival and growth of two replicate plants per seed family and treatment. To compare our results with those of previous investigations, we compiled a list of studies on
inbreeding and competition.
Conclusions: Both population mean inbreeding and inter-specific competition led to a significant reduction in plant performance (survival and growth) and were therefore sources of stress. However, inbreeding and competition did not interact in their effects on plant
performance or developmental instability (estimated by within-family coefficient of variation in performance). Inter-specific competition did not enhance inbreeding depression, which is in line
with the results of most previous studies.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

environment dependence, environmental stress, inbreeding depression, inter-specific competition, intra-specific competition

Zitieren

ISO 690

WILLI, Yvonne, Stefan DIETRICH, Mark VAN KLEUNEN, Markus FISCHER, 2007. Inter-specific competitive stress does not affect the magnitude of inbreeding depression. In: Evolutionary Ecology Research. 2007, 9, pp. 959-974. ISSN 1522-0613. eISSN 1937-3791

BibTex

@article{Willi2007Inter-13507,
  year={2007},
  title={Inter-specific competitive stress does not affect the magnitude of inbreeding depression},
  volume={9},
  issn={1522-0613},
  journal={Evolutionary Ecology Research},
  pages={959--974},
  author={Willi, Yvonne and Dietrich, Stefan and van Kleunen, Mark and Fischer, Markus}
}

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    <dcterms:abstract xml:lang="eng">Hypothesis: Stressful inter-specific competition enhances inbreeding depression.&lt;br /&gt;Organisms: Creeping spearwort (Ranunculus reptans L.) and its common competitor, the&lt;br /&gt;creeping bentgrass (Agrostis stolonifera L.).&lt;br /&gt;Field site: Outdoor common garden experiment at the University of Potsdam.&lt;br /&gt;Methods: We collected plants of 12 natural populations of R. reptans differing in mean parental inbreeding coefficient (0.01–0.26). We performed within-population crosses for two&lt;br /&gt;generations and kept the offspring in a common environment. In the second generation, we raised plants in the presence or absence of the grass competitor A. stolonifera. After 2 months,&lt;br /&gt;we assessed survival and growth of two replicate plants per seed family and treatment. To compare our results with those of previous investigations, we compiled a list of studies on&lt;br /&gt;inbreeding and competition.&lt;br /&gt;Conclusions: Both population mean inbreeding and inter-specific competition led to a significant reduction in plant performance (survival and growth) and were therefore sources of stress. However, inbreeding and competition did not interact in their effects on plant&lt;br /&gt;performance or developmental instability (estimated by within-family coefficient of variation in performance). Inter-specific competition did not enhance inbreeding depression, which is in line&lt;br /&gt;with the results of most previous studies.</dcterms:abstract>
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Universitätsbibliographie

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