Craniometric mutation of red-backed mice at the example of the Pustyn protected area of the Nizhegorodsky region

The article deals with the comparison of 8 lineal survey of the skulls of the red-backed mice populated in the Pustyn protected area in 1950 and 2001. There are demonstrated the statistically significant differences (р<0,05) in the size of some characteristics between the males and females in the gather in 1950 and the important changes of the row of the craniometric characteristics in the population of the field mice in 2001 by contrast with the field mice caught in 1950.