Towards a physical description of habitat: quantifying environmental adversity (abiotic stress) in temperate forest and woodland ecosystems

dc.contributor.authorLadd, Ben_AU
dc.contributor.authorBonser, SPen_AU
dc.contributor.authorPeri, PLen_AU
dc.contributor.authorLarsen, JRen_AU
dc.contributor.authorLaffan, SWen_AU
dc.contributor.authorPepper, DAen_AU
dc.contributor.authorCendón, DIen_AU
dc.date.accessioned2010-04-06T06:24:16Zen_AU
dc.date.accessioned2010-04-30T05:09:12Zen_AU
dc.date.available2010-04-06T06:24:16Zen_AU
dc.date.available2010-04-30T05:09:12Zen_AU
dc.date.issued2009-09en_AU
dc.date.statistics2009-09en_AU
dc.description.abstract1. Our aim was to develop a quantitative proxy for environmental adversity (abiotic stress) in temperate Eucalyptus and Nothofagus forest and woodland ecosystems. 2. Samples and measurements were collected at 42 sites across a rainfall gradient in southern Australia, an elevation gradient in south-eastern Australia, and a longitudinal transect (temperature gradient) in Patagonia, Argentina. 3. We compared the ability of (a) abiotic variables (14 soil and 21 climatic variables) and (b) the stable carbon isotope (δ13C) values of soil organic matter (SOM), to predict variation in leaf area index (LAI; a forest productivity variable). 4. The δ13C of SOM (soil aggregates) explained more variation (57%) in LAI than multivariate statistical models that integrated information on many abiotic variables. W* (a climatic water balance model) was also a powerful predictor variable, explaining 37% of the variability in LAI. 5. Synthesis. The stable carbon isotopic signature of soil aggregates is a powerful explanatory variable that may help us to quantify environmental adversity (abiotic stress) in temperate forest and woodland ecosystems. © 2009, Wiley-Blackwell. The definitive version is available at www3.interscience.wiley.comen_AU
dc.identifier.citationLadd, B., Bonser, S. P., Peri, P. L., Larsen, J. R., Laffan, S. W., Pepper, D. A., & Cendón, D. I. (2009). Towards a physical description of habitat: quantifying environmental adversity (abiotic stress) in temperate forest and woodland ecosystems. Journal of Ecology, 97(5), 964-971. doi:10.1111/j.1365-2745.2009.01530.xen_AU
dc.identifier.govdoc1593en_AU
dc.identifier.issn0022-0477en_AU
dc.identifier.issue5en_AU
dc.identifier.journaltitleJournal of Ecologyen_AU
dc.identifier.pagination964-971en_AU
dc.identifier.urihttp://dx.doi.org/10.1111/j.1365-2745.2009.01530.xen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3050en_AU
dc.identifier.volume97en_AU
dc.language.isoenen_AU
dc.publisherWiley-Blackwellen_AU
dc.subjectForestsen_AU
dc.subjectEucalyptusesen_AU
dc.subjectStressesen_AU
dc.subjectSoilsen_AU
dc.subjectStable isotopesen_AU
dc.subjectEnvironmental impactsen_AU
dc.titleTowards a physical description of habitat: quantifying environmental adversity (abiotic stress) in temperate forest and woodland ecosystemsen_AU
dc.typeJournal Articleen_AU
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