Discriminant analysis of skull morphometric characters in Apodemus sylvaticus, A.flavicollis, and A.alpicola [Mammalia: Rodentia] from the Alps
作者： Brigitte A. Reutter , Jacques Hausser , Peter Vogel
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摘要: A total of 108 Apodemus skulls from Switzerland, Austria, Italy, France and Germany was studied to determine morphological characteristics useful in identifying individuals as sylvaticus (Linnaeus, 1758), A. flavicollis (Melchior, 1834) or alpicola Heinrich, 1952. The original assignment the samples three species based on molar cusp morphology, body proportions, pelage coloration, allozyme analysis. 24 measured cranial characters used together accurately discriminated between correctly classified 100% species. stepwise discriminant function analysis showed that 6 are sufficient differentiate species, with a correct classification above 97%. Fisher's linear coefficients can be directly for unknown specimens.
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