Alexander John Nicholson

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Alexander John Nicholson (25 March 1895 – 28 October 1969) was an Irish Australian entomologist who specialised in insect population dynamics. He was Chief of the CSIR / CSIRO Division of Economic Entomology for 24 years and is credited with initiating the professional era in Australian entomology.[1] He was a Foundation Fellow of the Australian Academy of Science.[2]

He is notable for the Nicholson–Bailey model.


  1. ^ Mackerras, I.M. 1970. Alexander John Nicholson 1895-1969. Records of the Australian Academy of Science 2:66 - 81
  2. ^ D. F. Waterhouse, "Nicholson, Alexander John (1895–1969)", Australian Dictionary of Biography, National Centre of Biography, Australian National University. First published in Australian Dictionary of Biography, Volume 15, (MUP), 2000.
Preceded by
Joseph Garnett Wood
Clarke Medal
Succeeded by
Edward de Courcy Clarke