L. Forró szerk.: Miscellanea Zoologica Hungarica 10. 1995 (Budapest, 1995)

Gubányi, A.: Biometrical investigation of water frogs in the Szigetköz Landscape Protection Area

Rana lessonae Fig. 3. Allometric growth rate of morphometric characters for Rana lessonae %). On the other hand, misclassifications were rather found among Rana kl. esculenta specimens. Percentage of frogs correctly classified was 85 %, which seems to be a good result. The summary of descriptive statistics of 4 morphometric measurements for the two water frog forms are given in Table 3. Means of the measurements for female specimens in both forms exceeded that of males. At the same time, standard deviation of measurements for males proved to be lower than that of the females. A significant sexual dimorphism was found between male and female specimens of pool frog (Rana lessonae) in body length, tibia length and first toe length (P<0.05). Significant difference between sexes, however, have not been detected in the case of inner metatarsal tubercle length for pool frog (P = 0.11). On the other hand, all of the four measurements of Rana kl. esculenta showed significant differences between the sexes (P<0.01). When comparing means of the measurements of the two water frog forms, the value of Rana kl. esculenta specimens proved to be higher than that of the Rana lessonae ones. The differences in measurements were significant (P<0.01) between male specimens of the two forms, except for body length (P = 0.07). Females of water frog form differed from each other in all of the four morphometric characters (P<0.02).