Intra-specific variation in leaf attributes of four savanna tree species across a rainfall gradient in tropical Australia

Prior, LD; Bowman, DMJS; Eamus, D

Intra-specific variation in leaf attributes of four savanna tree species across a rainfall gradient in tropical Australia

Prior, LD Bowman, DMJS Eamus, D

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Publication Type:: Journal Article
Citation:: Australian Journal of Botany, 2005, 53 (4), pp. 323 - 335
Issue Date:: 2005-08-18

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Field	Value	Language
dc.contributor.author	Prior, LD	en_US
dc.contributor.author	Bowman, DMJS	en_US
dc.contributor.author	Eamus, D https://orcid.org/0000-0003-2765-8040	en_US
dc.date.issued	2005-08-18	en_US
dc.identifier.citation	Australian Journal of Botany, 2005, 53 (4), pp. 323 - 335	en_US
dc.identifier.issn	0067-1924	en_US
dc.identifier.uri	http://hdl.handle.net/10453/3763
dc.description.abstract	Leaf attributes of four savanna tree species were measured along a rainfall gradient (1650-950 mm per annum) in the Australian monsoon tropics. As the mean annual rainfall decreased, leaf thickness increased for three of these four species. However, a corresponding decrease in leaf density for two species meant that leaf mass per area increased significantly only for one species. Physiological measurements were made during both the wet and dry seasons on comparable stands of vegetation near the extremes and middle of this gradient. Assimilation per unit mass was similar at all three sites but assimilation per leaf area was higher at the drier sites because leaves were thicker with higher mass per area. These results probably reflect reduced tree density and leaf area index at the drier sites, which offsets the lower rainfall, potentially allowing similar rates of assimilation per unit carbohydrate invested in leaves. © CSIRO 2005.	en_US
dc.relation.ispartof	Australian Journal of Botany	en_US
dc.relation.isbasedon	10.1071/BT04080	en_US
dc.subject.classification	Plant Biology & Botany	en_US
dc.title	Intra-specific variation in leaf attributes of four savanna tree species across a rainfall gradient in tropical Australia	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	53	en_US
utslib.for	0607 Plant Biology	en_US
utslib.for	0602 Ecology	en_US
utslib.for	0605 Microbiology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	open_access
pubs.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	53	en_US

Abstract:

Leaf attributes of four savanna tree species were measured along a rainfall gradient (1650-950 mm per annum) in the Australian monsoon tropics. As the mean annual rainfall decreased, leaf thickness increased for three of these four species. However, a corresponding decrease in leaf density for two species meant that leaf mass per area increased significantly only for one species. Physiological measurements were made during both the wet and dry seasons on comparable stands of vegetation near the extremes and middle of this gradient. Assimilation per unit mass was similar at all three sites but assimilation per leaf area was higher at the drier sites because leaves were thicker with higher mass per area. These results probably reflect reduced tree density and leaf area index at the drier sites, which offsets the lower rainfall, potentially allowing similar rates of assimilation per unit carbohydrate invested in leaves. © CSIRO 2005.

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http://hdl.handle.net/10453/3763