Australian National University, Utah State University,
University of New South Wales (Australia)
Physiological plant ecology: understanding changes in plant form and function during growth and among species in terms of the underlying physiological processes, particularly plant water relations, photosynthesis and metabolism.
I study how plants coordinate multiple resource limitations – carbon, water, nitrogen and light – and how key properties of structure and function emerge from that coordination. This includes both physiological research on stomatal biology, photosynthesis, respiration and tree water relations, and physiological ecology research on how those processes differ across scales and among species. The goal of my research is to create rigorous yet efficient and scalable models of plant-atmosphere gas exchange that illuminate ecological understanding and are useful for land managers and policymakers.
Current projects include:
- The role of leaf hydraulics in stomatal regulation of gas exchange, how these features differ among species, and how those differences affect tree water use in the field.
- Monitoring tree water use in relation to age and environmental gradients in fire-affected subalpine forests of Australia, with particular interest in nocturnal transpiration.
- Testing hypotheses about how leaf respiration is affected by light, and how these effects relate to species differences and leaf developmental stage.
- Testing emergent scaling rules predicted from formal optimisation theory about variation in gas exchange and resource investment in trees, and using this knowledge to understand fundamental differences in the physiological ecology of major forest types and species.
- Testing hypotheses about the mechanism by which mesophyll photosynthesis influences stomatal aperture.
Buckley TN, Turnbull TL, Pfautsch S, Gharun M, Adams MA (2012) Differences in water use between mature and post-fire regrowth stands of subalpine Eucalyptus delegatensis R. Baker. Forest Ecology and Management 270:1-10
Merchant A, Buckley TN, Pfautsch S, Turnbull TL, Samsa G, Adams MA (2012) Site specific responses to short term environmental variation is reflected in leaf and phloem-sap carbon isotopic abundance of field grown Eucalyptus globulus (Labill). Physiologia Plantarum (in press)
Buckley TN, Turnbull TL, Pfautsch S, Adams MA (2011) Nocturnal water loss in mature subalpine Eucalyptus delegatensis tall open forests and adjacent E. pauciflora woodlands. Ecology and Evolution 1:435-450
Buckley TN, Sack L, Gilbert ME (2011) The role of bundle sheath extensions and life form in stomatal responses to leaf water status. Plant Physiology 156:962-973
Buckley TN, Adams MA (2011) An analytical model of non-photorespiratory CO2 release in the light and dark in leaves of C3 species based on stoichiometric flux balance. Plant, Cell and Environment. 34:89-112
Phillips NG, Buckley TN, Tissue DT (2008) Capacity of old trees to respond to environmental change. Journal of Integrative Plant Biology 50:1355-1364
Buckley TN, Roberts DW (2006) How should leaf area, sapwood area and stomatal conductance vary with tree height to maximize growth? Tree Physiology 26:145-157
Buckley TN (2005) Tansley Review: The control of stomata by water balance. New Phytologist 168:275-292
Plant Physiology; Environmental Physiology; Global Change Biology; Diversity, Structure and Function; Genetics, Evolution and Ecology; Introductory Biology; Differential and Integral Calculus II