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https://hdl.handle.net/1959.11/3874
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Vaughton, Glenda Vera | en |
dc.contributor.author | Ramsey, Michael William | en |
dc.date.accessioned | 2009-12-17T12:06:00Z | - |
dc.date.issued | 2002 | - |
dc.identifier.citation | Plant Systematics and Evolution, 232(2), p. 167-179 | en |
dc.identifier.issn | 1615-6110 | en |
dc.identifier.issn | 0378-2697 | en |
dc.identifier.uri | https://hdl.handle.net/1959.11/3874 | - |
dc.description.abstract | A valuable approach to understanding the evolution of gender dimorphism involves studies of single species that exhibit intraspecific variation in sexual systems. Here we survey sex ratios in 35 populations of Wurmbea biglandulosa, previously described as hermaphroditic. We found pronounced intraspecific variation in sexual systems; populations in the northeastern part of the species' range were hermaphroditic, whereas other populations were gynodioecious and contained 2–44% females. Populations with lower annual rainfall were more likely to be gynodioecious, supporting the view that gender dimorphism evolves more frequently in harsher environments. In gynodioecious populations, however, female frequency was not related to either annual rainfall or habitat, indicating that other factors are important in determining sex ratio variation. Females had smaller flowers and shorter stems than did hermaphrodites, potentially providing a basis for resource compensation. A female fecundity advantage may contribute to the maintenance of females in populations because females produced more ovuliferous flowers and had more ovules per flower than did hermaphrodites. | en |
dc.language | en | en |
dc.publisher | Springer Wien | en |
dc.relation.ispartof | Plant Systematics and Evolution | en |
dc.title | Evidence of gynodioecy and sex ratio variation in 'Wurmbea biglandulosa' (Colchicaceae) | en |
dc.type | Journal Article | en |
dc.identifier.doi | 10.1007/s006060200040 | en |
dc.subject.keywords | Plant Biology | en |
local.contributor.firstname | Glenda Vera | en |
local.contributor.firstname | Michael William | en |
local.subject.for2008 | 060799 Plant Biology not elsewhere classified | en |
local.subject.seo2008 | 960806 Forest and Woodlands Flora, Fauna and Biodiversity | en |
local.profile.school | School of Environmental and Rural Science | en |
local.profile.school | School of Environmental and Rural Science | en |
local.profile.email | gvaughto@une.edu.au | en |
local.profile.email | mramsey2@une.edu.au | en |
local.output.category | C1 | en |
local.record.place | au | en |
local.record.institution | University of New England | en |
local.identifier.epublicationsrecord | pes:235 | en |
local.publisher.place | Austria | en |
local.format.startpage | 167 | en |
local.format.endpage | 179 | en |
local.identifier.scopusid | 0036338337 | en |
local.peerreviewed | Yes | en |
local.identifier.volume | 232 | en |
local.identifier.issue | 2 | en |
local.contributor.lastname | Vaughton | en |
local.contributor.lastname | Ramsey | en |
dc.identifier.staff | une-id:gvaughto | en |
dc.identifier.staff | une-id:mramsey | en |
local.profile.role | author | en |
local.profile.role | author | en |
local.identifier.unepublicationid | une:3969 | en |
dc.identifier.academiclevel | Academic | en |
dc.identifier.academiclevel | Academic | en |
local.title.maintitle | Evidence of gynodioecy and sex ratio variation in 'Wurmbea biglandulosa' (Colchicaceae) | en |
local.output.categorydescription | C1 Refereed Article in a Scholarly Journal | en |
local.search.author | Vaughton, Glenda Vera | en |
local.search.author | Ramsey, Michael William | en |
local.uneassociation | Unknown | en |
local.year.published | 2002 | en |
Appears in Collections: | Journal Article |
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