Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 76. (Budapest 1984)

Demeter, A. ; Lázár, P.: Morphometric analysis of field mice Apodemus: character selection for routine identification (Mammalia)

Table 2. Weighted entropies (H') of the various characters, estimated by the ShannonWiener function. Asterisks indicate characters that were not measured along the major axis of the skull/body Character H' Character H' Cbsl Prbs Fnal Gles Dico Daco Daic Daan Prpl Wzga* Dim3 Rosl Lnas Lhft Lefi Lzyg Hcon* Lima Dbai* Dcoa* Dorv* Venv* Dcna* Wbrc* Ldias Ghes* Dbzp* Hcor* Habl Lota Hpar Lepa Hbrc* 6.4703 6.3709 6.3292 6.3010 6.2451 6.2077 6.0190 5.9800 5.9200 5.9181 5.8844 5.7700 5.7300 5.7200 5.6152 5.6000 5.5662 5.5600 5.5227 5.5221 5.5000 5.4800 5.4604 5.4229 5.4173 5.3717 5.3384 5.2969 5.2500 5.2000 5.1359 5.1349 5.0780 Bowe* Dbjp* Spsp* Wzyg Dcoc Wiro* Hros* Olab Ewfm* Umra He ok* Lmrc Umrc Lmra Wiab* Wind* Wida* Lioc* A lima* Wifm* Hefm* Wich* Hnac* Hear* Wpml* Wipa* Csdl Wiml* Dorx Venx Dory* Veny* 5.0400 4.9406 4.9200 4.9200 4.8990 4.8537 4.8281 4.7927 4.6635 4.6400 4.5751 4.5500 4.5109 4.5059 4.4620 4.2674 4.2563 4.1577 4.1184 4.1069 4.0700 3.8082 3.7891 3.7800 3.7738 3.6000 3.5330 2.8748 2.5000 1.7700 1.6900 1.3200 which are oriented along the major axis of the skull or the body, whereas those that are taken along the minor axis, have usually lower entropy values. Since we measured the entropy of continuous qualitative characters (except the ordinal data on Spsp, which we perhaps rather objectionably simply treated as interval measurements), it is useful to examine the relationship between entropy and the variance of the characters (Fig. 6). It is clear that H is closely correlated with the variance, and there is also close correlation between entropy and the number of character states (Fig. 7). Multivariate analysis Table 4 contains the loadings of the variables on the first three principal components and factors, respectively. The factors were obtained by the method of principal factor extraction with Varimax rotation. Nearly all of the variables had significant (p < 0.01) loadings only on P.C. I, only two cranial measurements across the skull, Wich and Wipa, and two colour characters were