Dr Mike Bourke is an Adjunct Senior Fellow in the School of Culture, History & Language in the College of Asia and the pacific at the ANU. He has been engaged in research and development activity in Papua New Guinea, the Solomon Islands and Vanuatu since 1970. His career highlights include: Agronomist, PNG Department of Primary Industry (1970-77); Principal Research Horticulturalist, PNG Department of Primary Industry (1978-83); Postgraduate Student, ANU (1983-88); Visiting Fellow (and later Adjunct Senior Fellow), Department of Human Geography, ANU (1989-2008); Self-employed Consultant (1988-2008).

Highlands Agricultural Experiment Satation, Aiyura, Crop Altitudinal Limits Data giving actual figures for altitudinal range of crops in PNG gathered by Mike Bourke in the period 1979 to 1984, arranged in files as follows:
Location abbreviations
Altitude limits – staples / energy crops
Altitude limits – traditional vegetables
Altitude limits – introduced vegetables
Altitude limits – fruit
Altitude limits – nuts
Altitude limits – herbs, spices and narcotics
Altitude limits – non-food crops

Dr Bourke published the mean data in his paper, “Altitudinal limits of 230 economic crop species in Papua New Guinea”, in S.G. Haberle, J. Stevenson and M. Prebble (eds), Altered Ecologies: Fire, Climate and Human Influence on Terrestrial Landscapes. Terra Australia 32 (2010), ANU E-Press, The Australian National University, Canberra; pp.473-512. http://epress.anu.edu.au/terra_australis/ta32/pdf/ch27.pdf