Testing the Randomness of the Samples of Body Size in a Replicated Design in Drosophila melanogaster Populations from the Eastern Mediterranean

Strong body size correlates, wing and thorax lengths, of Drosophila melanogaster populations from the Eastern Mediterranean were measured and tested for the presence of autocorrelation, i.e. nonrandom alternation of individual measurements within a sample. The experimental design was a laboratory setup aiming at overall homogeneity in fly culture conditions, which was achieved. A t-test, first proposed by Von Neumann, was performed for the autocorrelation analysis in each population. No significant autocorrelation was detectable, indicating very low bias in the experimental design for nonrandom picking of individuals for measurements. The test is suggested for routine use in studies before any inference is made about the state of a character chosen.
Anahtar Kelimeler:

Drosophila, body size, randomness

Testing the Randomness of the Samples of Body Size in a Replicated Design in Drosophila melanogaster Populations from the Eastern Mediterranean

Strong body size correlates, wing and thorax lengths, of Drosophila melanogaster populations from the Eastern Mediterranean were measured and tested for the presence of autocorrelation, i.e. nonrandom alternation of individual measurements within a sample. The experimental design was a laboratory setup aiming at overall homogeneity in fly culture conditions, which was achieved. A t-test, first proposed by Von Neumann, was performed for the autocorrelation analysis in each population. No significant autocorrelation was detectable, indicating very low bias in the experimental design for nonrandom picking of individuals for measurements. The test is suggested for routine use in studies before any inference is made about the state of a character chosen.

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  • Özsoy, E.D. 2004. Implications of locus specific microevolution inferred by genetic distances between two local populations of Drosophila melanogaster from Turkey. Turk. J. Zool. 28: 273-277.
  • Sokal, R. and Rohlf, F.J. 1995. Biometry, 3rdedition. W.H. Freeman and Company, NY.
  • Von Neumann, J., Kent, R.H., Bellinson, H.R. and B.I. Hart. 1941. The mean square successive difference. Ann. Math. Stat. 12: 153- 162.
Turkish Journal of Zoology-Cover
  • ISSN: 1300-0179
  • Yayın Aralığı: Yılda 6 Sayı
  • Yayıncı: TÜBİTAK
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