Idris Barchia

Research interests

  • Monte Carlo method
  • Analysis of multivariate binary data


Idris Barchia is a special biometrician at Elizabeth Macarthur Agricultural Institute (EMAI), Menangle. He provides biometrical support to researchers and extension officers within EMAI Menangle and Hawkesbury District Office.

Idris joined NSW Agriculture* Research Station Trangie in 1988 and worked in collaboration with researchers primarily on experiments in cereal cultivars, rangeland grasses and sheep breeding. In 1991 he transferred to Biological and Chemical Research Institute (BCRI), Rydalmere where he then worked closely with entomologists.

In 1996 Idris was transferred to the current research institute where he works with microbiologists, veterinary researchers, entomologists and plant pathologists.

*NSW Department of Primary Industries was formed on July 1, 2004 through an amalgamation of NSW Agriculture, NSW Fisheries, State Forests of NSW and the NSW Department of Mineral Resources.


  • B.Sc, 1976. Academy of Statistics, Jakarta, Indonesia
  • M.Agr.Sc, 1981, University of Sydney
  • PhD, 1990, University of Sydney

Current projects

  • Monte Carlo confidence interval of prawn mortality

Recent publications

Chan KY and Barchia I (2007) Soil compaction controls the abundance, biomass and distribution of earthworms in a single dairy farm in south-eastern Australia. Soil and Tillage Research, 94; 75-82.

Chan KY, Dorahy C, Tyler S, Wells T, Milham P and Barchia I (2007) Phosphorus accumulation and other changes in soil properties as a consequence of vegetable production in the Sydney region, New South Wales, Australia. Australian Journal of Soil Research 45 (2). 139-146.

Fulkerson WJ, Neal JS, Clark CF, Horadagoda A, Nandra KS, Barchia I (2007) Nutritive value of forage species grown in the warm temperate climate of Australia for dairy cows: Grasses and legumes. Livestock Science 107; 253-264.

Chapman T, Wu XY, Barchia I, Bettelheim K, Driesen S, Trott D, Wilson M and Chin JC (2006) Comparison of Virulence Gene Profiles of Escherichia coli Strain isolated from Healthy and Diarrheic swine. Applied Environmental Microbiology. Vol 72, 4782-95.

Fulkerson WJ, Nandra KS, Clark CEF and Barchia I (2006) Effect of cereal-based concentrates on productivity of Holstein-Friesian cows grazing short rotation ryegrass (Lolium multiflorum) or kikuyu (pennisetum clandestinum) pastures. Livestock Science 103, 85-94.

Malcolm P, Holford P, McGlasson B, Conroy J and Barchia I (2006) Growth and its partitioning in Prunus rootstocks in response to root zone temperature (Proof reading). Scientia Horticulturae 112; 58-65.

Patterson J, Chapman T, Hegedus E, Barchia IM, and Chin J (2005) Selected culturable enteric bacterial populations are modified by diet acidification and the growth promotant Tylosin. Letters in Applied Microbiology .41, 119-124

Clark CEF, Fulkerson WJ, Nandra KS, Barchia IM and Macmillan KL (2005) The use of indicators to assess the degree of mobilisation of body reserves in dairy cows in early lactation on a pasture-based diet. Livestock Production Science 94, 199-211.

Dominiak B and Barchia I (2005) A survey of travellers carrying host fruit of Queensland fruit fly, Bactrocera tryoni (Froggatt) into a fruit fly free area in 1998/99 following road signposting of penalties for infringements. Plant Protection Quarterly. Vol 20, 148-154.

Dominiak B and Barchia I (2005) Review of community awareness at Riverina fruit fly roadblocks in New South Wales in 1998/99. Plant Protection Quarterly. Vol 20. p154-158.

Fulkerson WJ, McKean K, Nandra KS and Barchia IM (2005) Benefits of accurately allocating feed on a daily basis to dairy cows grazing pasture. Australian Journal of Experimental Agriculture. 45, p331-336.

Bishop AL, McKenzie HJ, Spohr LJ and Barchia IM (2005) Interactions between dung beetles and the arbovirus vector, Culicoides brevitarsis. Australian Journal of Entomology. 44, 89-96.

Bishop AL, Spohr LJ and Barchia IM (2004) Effect of altitude, distance and waves of movement on on the dispersal in Australia the arbovirus vector, Culicoides brevitarsis. Preventive Veterinary Medicine. 65 p135-145.

Barchia IM, Herron GA and Gilmour AR (2003) Use of a Generalized Linear Mixed Model to Reduce Excessive Heterogeneity in Petroleum Spray Oil Bioassay Data. Journal of Economic Entomology 96: 983-989.

Bishop AL and Barchia IM (2003) Relationships between the lucerne flea, Sminthurus viridis (L.)  (Collembola: Sminthuridae), and damage to lucerne. Australian Journal of Entomology 42. p304-310.

Professional associations and activities

  • Statistical Society of Australia, Inc.
  • International Biometric Society – Australasian Region

Fields of research

  • 010401 Applied Statistics

Australian and New Zealand Standard Research Classification (ANZSRC)

Keyword/phrase list of research interests

  • Mathematical Science
  • Statistics
  • Applied Statistics

Contact details