Show simple item record

dc.contributor.authorHe, Tianhua
dc.date.accessioned2017-01-30T14:16:07Z
dc.date.available2017-01-30T14:16:07Z
dc.date.created2013-07-04T20:00:19Z
dc.date.issued2013
dc.identifier.citationHe, Tianhua. 2013. Structural equation modelling analysis of evolutionary and ecological patterns in Australian Banksia. Population Ecology. 55 (3): pp. 461-467.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/38258
dc.identifier.doi10.1007/s10144-013-0376-3
dc.description.abstract

Evolutionary history of species, their geographic ranges, ecological ranges, genetic diversity, and resistance to pathogen infection, have been viewed as being mutually linked through a complex network of interactions. Previous studies have described simple correlations between pairs of these factors, while rarely separated the direct effects among multiple interacting factors. This study was to separate the effect of multiple interacting factors, to reveal the strength of the interactions among these factors, and to explore the mechanisms underlying the ecological and evolutionary processes shaping the geographic range, genetic diversity and fitness of species. I assembled comparative data on evolutionary history, geographic range, ecological range, genetic diversity, and resistance to pathogen infection for thirteen Banksia species from Australia. I used structural equation modelling to test multivariate hypotheses involving evolutionary history, geographic range, genetic diversity and fitness. Key results are: (1) Species with longer evolutionary times tend to occupy larger geographic ranges; (2) higher genetic diversity is directly associated with longer flowering duration in Banksia; and (3) species with higher genotypic diversity have higher level of resistance to infection caused by the pathogen Phytophthora cinnamomi, whereas heterozygosity has the opposite relationship with capacity of resistance to the infections caused by this pathogen.

dc.publisherSpringer
dc.subjectPath analysis
dc.subjectPathogen resistance
dc.subjectGeographic ranges
dc.subjectFlowering duration
dc.subjectGenetic diversity
dc.subjectEvolutionary history
dc.titleStructural equation modelling analysis of evolutionary and ecological patterns in Australian Banksia
dc.typeJournal Article
dcterms.source.volume55
dcterms.source.number3
dcterms.source.startPage461
dcterms.source.endPage467
dcterms.source.issn14383896
dcterms.source.titlePopulation Ecology
curtin.note

The final publication is available at http://link.springer.com/article/10.1007%2Fs10144-013-0376-3

curtin.department
curtin.accessStatusOpen access


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record