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Research Fellow, School of Biological, Earth and Environmental Sciences., UNSW Sydney

Jonathan is a dendrochronologist interested in the development of palaeoclimate records from various parts of Australia, New Zealand and parts of SE Asia. His activities include not only the collection of tree-ring material from some remote locations but also spending time on local counterpart training in countries such as Pakistan, Myanmar and Indonesia. Another aspect of his research is the extension back in time of tree-ring chronologies using subfossil wood preserved in bogs located primarily in New Zealand. Often coupled with subfossil collections are sample preparations for radiocarbon dating and the development of the Southern Hemisphere radiocarbon calibration curve.


  • 2011–2022
    Research fellow, University of New South Wales


  • 1989 
    University of Auckland, PhD