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Leaf attributes in the seasonally dry tropics: a comparison of four habitats in northern Australia

Citation

Prior, LD and Eamus, D and Bowman, DMJS, Leaf attributes in the seasonally dry tropics: a comparison of four habitats in northern Australia, Functional Ecology, 17, (4) pp. 504-515. ISSN 0269-8463 (2003) [Refereed Article]


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Copyright Statement

2003 British Ecological Society The definitive published version is available online at: http://www.interscience.wiley.com

DOI: doi:10.1046/j.1365-2435.2003.00761.x

Abstract

1. Patterns of leaf attributes were compared at regional and global scales in relation to the seasonal availability of water. 2. Light-saturated assimilation rate (Amass), leaf mass per area (LMA), leaf density, thickness, life span, saturated water content, chlorophyll, nitrogen and phosphorus content were determined during the wet season for 21 tree species in four contrasting habitats in northern Australia. Rainfall in this area is extremely seasonal. 3. Amass and foliar chlorophyll, N and P contents were positively correlated with each other, and were all negatively correlated with LMA, leaf thickness, density and life span. 4. Deciduous species had smaller LMA and leaf life span, and larger foliar N and P contents than did evergreen species. 5. The eight Myrtaceous species had smaller A mass, foliar chlorophyll, N and P contents, and larger LMA, leaf thickness and leaf life span than did the non-Myrtaceous species. 6. Leaves from the closed canopy dry monsoon forest had significantly larger A mass, chlorophyll and P contents than did leaves from the three open canopy habitats (eucalypt open forest, mixed woodland and Melaleuca swamp). This reflected the relatively low proportions of evergreen and Myrtaceous species in the dry monsoon forest. There were also significant intraspecific differences among habitats. 7. Leaf thickness, density and LMA were lower than predicted from globally derived relationships with temperature and precipitation. Tropical seasonally dry biomes are under-represented in such global analyses.

Item Details

Item Type:Refereed Article
Keywords:Ecophysiology;Eucalyptus;phenology;phylogeny;savanna;specific leaf area
Research Division:Biological Sciences
Research Group:Other Biological Sciences
Research Field:Global Change Biology
Objective Division:Environment
Objective Group:Climate and Climate Change
Objective Field:Social Impacts of Climate Change and Variability
Author:Prior, LD (Dr Lynda Prior)
Author:Bowman, DMJS (Professor David Bowman)
ID Code:46532
Year Published:2003
Web of Science® Times Cited:83
Deposited By:Plant Science
Deposited On:2007-09-19
Last Modified:2011-09-29
Downloads:1 View Download Statistics

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