Please use this identifier to cite or link to this item: https://une.intersearch.com.au/unejspui/handle/1959.11/2731
Title: Plant trait-environmental linkages among contrasting landscapes and climate regimes in temperate eucalypt woodlands
Contributor(s): Wills, Karen E. (author); Clarke, Peter John  (author)
Publication Date: 2008
DOI: 10.1071/BT07150
Handle Link: https://hdl.handle.net/1959.11/2731
Abstract: Ecological sorting of species along climate and landscape gradients is a fundamental global pattern. However, the extent to which functional traits reflect floristic turnover in response to interactions between climate and landscape gradients is rarely assessed. We tested whether floristic variation among sites within a bioregion was more strongly correlated with soil fertility or climate. We then examined the relationship between floristic composition, environment and the co-variation of selected vegetative and regenerative functional traits. This allowed us to assess the ecological sorting of species along soil fertility and rainfall gradients and to detect any resource compensation effects via interactions between these factors. Floristic differences were equally associated with soil fertility and climate contrasts but species’ trait patterns were more strongly associated with soil fertility than rainfall. No interactive effects, which would suggest resource compensation, were detected. Instead, more fertile sites consistently had more forbs, annuals and grasses in comparison with less fertile sites which were dominated by woody species and had a higher abundance of graminoids. Three broad mechanisms for sorting of species based on trait patterns are proposed (1) differences in the fundamental regenerative and growth niche, (2) resource competition during establishment and (3) disturbance-mediated sorting.
Publication Type: Journal Article
Source of Publication: Australian Journal of Botany, 56(5), p. 422-432
Publisher: CSIRO Publishing
Place of Publication: Melbourne, Australia
ISSN: 0067-1924
Field of Research (FOR): 060208 Terrestrial Ecology
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Other Links: http://nla.gov.au/anbd.bib-an891680
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