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Résumé La diagnose sexuelle à partir du squelette se partage entre les méthodes visuelles, chargées d’une grande subjectivité et nécessitant un apprentissage, et les méthodes métriques (fonctions discriminantes) qui sont spécifiques aux populations à partir desquelles elles ont été élaborées. La principale limite de ces dernières méthodes en termes de reproductibilité est incarnée par le facteur taille,...
Size, growth and sexual dimorphism of nine skull traits was studied in 300 East Greenland and 391 Svalbard polar bears (Ursus maritimus). Two traits were significantly larger in bears from East Greenland compared to Svalbard bears, and trait size was smaller after 1960 in five traits. For both localities and both age groups (subadult, adult), mean trait size values were higher in males than females...
Morphometric variation in 22 characters of 86 skulls of the European minkMustela lutreola (Linnaeus, 1761), from the NW part of Russia, has been analysed. Stepwise discriminant analysis was used to estimate craniometric variables for sex determinations. Two characters (zygomatic breadth and interorbital width) are enough for the 96.5% correct classification. The male skull ofM. lutreola is characterised...
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