Analysis of skull measurements and measurers: Can we use data obtained by various observers?

Journal of Mammalogy

Volumn 79, Issue 3, 1998, Pages 1021-1028

  Palmeirim, Jorge M ^a  

^a UNIVERSITY OF LISBON   (Portugal)

Author keywords

Bats; Chiroptera; Craniometry; Measurement error; Morphometrics; Observer bias; Precision

Indexed keywords

EID: 0000929450     PISSN: 00222372     EISSN: None     Source Type: Journal    
DOI: 10.2307/1383111     Document Type: Article

References (14)

1. BAILEY, R. C., AND J. BYRNES. 1990. A new, old method for assessing measurement error in both univariate and multivariate morphometric studies. Systematic Zoology, 39:124-130.
2. BARRET, R. T., M. PETERZ, R. W. FURNESS, AND J. DURINCK. 1989. The variability of biometnc measurements. Ringing and Migration, 10:13-16
3. EWINS, P. J. 1985. Variation of Black Guillemot wing lengths post-mortem and between measurers. Ringins and Migration, 6:115-117.
4. GANNON, M. R., M. R. WILLIG, AND J. K. JONES, JR. 1992. Morphometric variation, measurement error, and fluctuating asymmetry in the red fig-eating bat (Stenoderma rufum). The Texas Journal of Science, 44:389-404.
5. LEE, J. C. 1990. Sources of extraneous variation in the study of meristic characters: the effect of size and of inter-observer variability. Systematic Zoology, 39:31-39.
6. LOUGHEED, S. C., T. W. ARNOLD, AND R. C. BAILEY. 1991. Measurement error of external and skeletal variables in birds and its effect on principal components. The Auk, 108:432-436.
7. MERILÄ, J., AND M. BJÖRKLUND. 1995. Fluctuating asymmetry and measurement error. Systematic Biology, 44:97-101.
8. PALMEIRIM, J. M. 1990. Bats of Portugal: zoogeography and systematics. University of Kansas Museum of Natural History Publications, 82:1-53.
9. PALMER, A. R., AND C. STROBECK. 1986. Fluctuating asymmetry: measurement, analysis, patterns Annual Review of Ecology and Systematics, 17:391-421.
10. PANKAKOSKI, E., R. A. VÄISÄNEN, AND K. NURMI. 1987. Variability of muskrat skulls: measurement error environmental modification and size allometry. Systematic Zoology, 36:35-51.
11. SIMPSON, G. G., A. ROE, AND R. C. LEWONTIN. 1960. Quantitative zoology. Revised ed. Harcourt, Brace and Company, New York, 440 pp.
12. SOKAL, R. R., AND F. J. ROHLF. 1995. Biometry. Third ed. W. H. Freeman and Company, San Francisco, California, 887 pp.
13. SWADDLE, J. P., M. S. WITTER, AND I. C. CUTHILL. 1994. The analysis of fluctuating asymmetry. Animal Behavior, 48:986-989.
14. YEZERINAC, S. M., S. C. LOUGHEED, AND P. HANDFORD. 1992. Measurement error and morphometric studies: statistical power and observer experience. Systematic Biology, 41:471-482.