Skull variability of Martes martes and Martes foina from Poland

A morphological study of sex, age and population variation of Martes martes (Linnaeus, 1758) and Martes foina (Erxleben, 1777) was completed, using a collection of 236 and 47 skulls, respectively. Twenty-three measurements were take on each specimen. Three age groups (juveniles, subadults and adults) were recognized, based on relative criteria such as suture obliteration, tooth wear, and development of crista sagittalis. Univariate and multivariate technigues were used to process the data.