Inter-observer and intra-observer differences in measuring body length: a test in the common lizard, Zootoca vivipara
Inter-observer and intra-observer differences in measuring body length: a test in the common lizard, Zootoca vivipara
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观察者间和观察者内测量体长的差异:对普通蜥蜴(Zootoca vivipara)的测试
DOI:
10.1163/156853811x601636
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发表时间:
2011
影响因子:
1.6
通讯作者:
Böhme W.
中科院分区:
文献类型:
--
作者:
Roitberg E. S;Orlova V. F;Kuranova V. N;Bulakhova N. A;Zinenko O. I;Ljubisavljevic K;Shamgunova R. R;Carretero M. A;Clasen A;Fokt M. ;Böhme W.
AbstractThe snout-vent length (SVL), a conventional measure of overall body size in lizards and snakes, is used in a wide variety of ecological, evolutionary, and taxonomical studies. Trends in SVL variation are often analysed using data from several researchers (observers), but possible confounding effects due to inter-observer differences in measurement protocols have never been appropriately examined. This study reports inter-observer biases between eleven herpetologists who measured the same specimens of the Eurasian common lizards (21 adult specimens were examined by eight observers and additional 192 specimens by two observers). Intra-observer bias over time (1.5-15 months between measuring sessions) was also estimated. In the vast majority of comparisons, mean difference between the first author and another observer varied from −1.0 to +0.8 mm, or from −1.9 to +1.6% if expressed as a percent of the specimen's SVL value. Some non-regular effects of sex and study sample on the studied bias were revealed, and their possible reasons are discussed. We are advising the researchers who intensively collect SVL and other morphometric data to consider testing intra-observer and inter-observer biases and to establish etalon samples available for re-examinations.
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影响因子:
5.9
作者:
Brown, RP;Znari, M;Harris, P
通讯作者:
Harris, P
DOI:
--
发表时间:
2006
期刊:
Journal of Ichthyology : A Translation of Voprosy Ikhtiologii
影响因子:
--
作者:
A. N. Mironovskii
通讯作者:
A. N. Mironovskii
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
Valentina F Orlova;V. N. Kuranova;N. Bulakhova
通讯作者:
N. Bulakhova
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
J. Palmeirim
通讯作者:
J. Palmeirim
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
C. Tracy
通讯作者:
C. Tracy