Show simple item record

dc.contributor.authorCerfonteyn, M.E.
dc.contributor.authorle Roux, P.C.
dc.contributor.authorJansen van Vuuren, B.
dc.contributor.authorBorn, C.
dc.date.accessioned2011-12-12T06:33:47Z
dc.date.available2011-12-12T06:33:47Z
dc.date.issued2011
dc.identifier.citationCerfonteyn, M.E.; le Roux, P.C.; Jansen van Vuuren, B. and Born, C. (2011) Cryptic spatial aggregation of the cushion plant Azorella selago (apiaceae) revealed by a multilocus molecular approach suggests frequent intraspecific facilitation under Sub-Antarctic conditions. American Journal of Botany, 98(5), 909–914en
dc.identifier.urihttp://hdl.handle.net/123456789/994
dc.description.abstract• Premise of the study: In abiotically severe habitats, intraspecifi c aggregations can increase species ’ fi tness by ameliorating stressful environmental factors. However, the diffi culty of identifying individual plants in some growth forms makes the measurements of intraspecifi c aggregation, and therefore the assessment of intraspecifi c facilitation, problematic. In this study, we examined the genotype composition within cushions of Azorella selago , a sub-Antarctic cushion plant, to investigate the potential extent of intraspecifi c facilitation. • Methods: The study was performed on Marion Island, South Africa. Two to eight samples were collected from 42 A. selago cushions, comprising eight different growth forms. Samples were genotyped using seven microsatellite markers. • Key results: We showed that all cushion shapes, with the exception of small cushions, may be comprised of more than one genetically distinct individual. • Conclusions: Under harsh sub-Antarctic conditions, intraspecifi c aggregation between A. selago individuals appears common and may be driven by the positive impacts of environmental ameliorationen
dc.format.extent1021767 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherBotanical Society of Americaen
dc.subjectApiaceaeen
dc.subjectAzorella selagoen
dc.subjectintraspecifi c facilitationen
dc.subjectMarion Islanden
dc.subjectmicrosatellite markersen
dc.subjectrelatednessen
dc.titleCryptic spatial aggregation of the cushion plant Azorella selago (apiaceae) revealed by a multilocus molecular approach suggests frequent intraspecific facilitation under Sub-Antarctic conditionsen
dc.typeJournalArticlesen
dc.cibjournalAmerican Journal of Botanyen
dc.cibprojectNAen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record