The consistent theme of my research is the study of how environmental variables affect Earth-surface processes (climate, transport, etc.) and natural materials (biota, earth and water) over multiple scales of time and distance.

Currently, I'm using dendrochronology, stable isotopes, and ancient kauri pines of North Queensland to reconstruct past rainfall and model the response of drought and floods to El Niño Southern Oscillation and other mulitdecadal climate phenomena (Indian Ocean Dipole, Pacific Decadal Oscillation). In the past, my colleagues and I investigated the link between ecophysiology, climate, and isotopic variation in the spines of columnar cactuses, including the tropical species Trichocereus pasacana in Bolivia. This research develops and explains a novel climate proxy that yields high–resolution information about plant ecology, water relations and past climate that will be useful in tropical and subtropical regions with few annually resolved and centuries-long terrestrial climate proxies.

My current work on climate and trees of North Queensland is covered here:


 I'm also the manager of the Tropical Dendrochronology Laboratory, administrator of the Australasian Dendrochronology Page on Facebook (link below) and a local organizing commitee member for the World Dendrochronology Conference 2014 in Melbourne.


  • 2012 - Lecturer, James Cook University (Townsville)
  • 2009 to 2011 - Director's Postdoctoral Research Fellow, Los Alamos National Laboratory (Los Alamos, NM)
Research Disciplines
Socio-Economic Objectives

These are the most recent publications associated with this author. To see a detailed profile of all publications stored at JCU, visit ResearchOnline@JCU. Hover over Altmetrics badges to see social impact.

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These Higher Degree Research projects are either current or by students who have completed their studies within the past 5 years at JCU. Linked titles show theses available within ResearchOnline@JCU.


The map shows research collaborations by institution from the past 7 years.
Note: Map points are indicative of the countries or states that institutions are associated with.

  • 5+ collaborations
  • 4 collaborations
  • 3 collaborations
  • 2 collaborations
  • 1 collaboration
  • Indicates the Tropics (Torrid Zone)

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