ITEM VIEW

How much evolutionary history in a 10 x 10 m plot?

dc.contributor.authorProches S.
dc.contributor.authorWilson J.R.U.
dc.contributor.authorCowling R.M.
dc.date.accessioned2011-05-15T16:00:25Z
dc.date.available2011-05-15T16:00:25Z
dc.date.issued2006
dc.identifier.citationProceedings of the Royal Society B: Biological Sciences
dc.identifier.citation273
dc.identifier.citation1590
dc.identifier.issn9628452
dc.identifier.other10.1098/rspb.2005.3427
dc.identifier.urihttp://hdl.handle.net/10019.1/11685
dc.description.abstractWe use a fully dated phylogenetic tree of the angiosperm families to calculate phylogenetic diversity (PD) in four South African vegetation types with distinct evolutionary histories. Since the branch length values are in this case represented by the ages of plant lineages, PD becomes the cumulative evolutionary age (CEA) of assemblages. Unsurprisingly, total CEA increases with family and with species diversity and observed values are the same as expected from random sampling of family lists. However, when random sampling is done from species lists, observed CEAs are generally lower than expected. In vegetation types which have undergone recent diversification - grassland, fynbos and Nama-karoo - co-occurring species are more closely related than expected, but in subtropical thicket the observed CEAs are well described by random sampling. The use of CEA has great potential for assessing the age of biotic assemblages, particularly as the dating of genus and species-level phylogenies become more accurate. © 2006 The Royal Society.
dc.subjectage
dc.subjectangiosperm
dc.subjectevolution
dc.subjectphylogeny
dc.subjectspecies diversity
dc.subjectspecies inventory
dc.subjectvegetation history
dc.subjectvegetation type
dc.subjectangiosperm
dc.subjectarticle
dc.subjectcontrolled study
dc.subjecthistogram
dc.subjectnonhuman
dc.subjectphylogeny
dc.subjectpriority journal
dc.subjectSouth Africa
dc.subjectvegetation
dc.subjectAfrica
dc.subjectSouth Africa
dc.subjectSouthern Africa
dc.subjectSub-Saharan Africa
dc.subjectMagnoliophyta
dc.titleHow much evolutionary history in a 10 x 10 m plot?
dc.typeArticle
dc.description.versionArticle


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

ITEM VIEW