Supplementary material from "Prey size reflected in tooth wear – a comparison of two wolf populations from Sweden and Alaska" ...

• Main Authors: Schulz-Kornas, Ellen, Skiba, Mirella H., Kaiser, Thomas M.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: The Royal Society 2024
• Subjects: Systems biology; Canis lupus; Alaska
• Online Access: https://dx.doi.org/10.6084/m9.figshare.c.7214486; https://rs.figshare.com/collections/Supplementary_material_from_Prey_size_reflected_in_tooth_wear_a_comparison_of_two_wolf_populations_from_Sweden_and_Alaska_/7214486

Ingesta leave distinct patterns on mammalian teeth during mastication. However, an un-resolved challenge is how to include intraspecific variability into dietary reconstruction and the biomechanical aspects of chewing. Two extant populations of the grey wolf ( Canis lupus ), one from Alaska and one from Sweden, were analysed with consideration to intraspecific dietary variability related to prey size depending on geographical origin, sex and individual age as well as tooth function. Occlusal enamel facets of the upper fourth premolars, first molars and the second lower molar were analysed via 3D surface texture analysis. The Swedish wolves displayed facets characterised by higher peaks and deeper, more voluminous dales, featuring an overall rougher surface than the wolves from Alaska. Compared to females, the Swedish male wolves had slightly larger dale area and hill volume on their facets. Upper fourth premolars are smoother and have higher values in texture direction compared to upper first molars. The ...