Larger wild felids exhibit longer dental skeletons
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Extant members of the cat family (Felidae) have been considered morphologically skull conservative, i.e., despite great differences in size, there is relatively little variation in the cranial shape. Consequently, felids tend to show isometry(skull shape scales in a linear fashion with the skull size). However, although other researches have considered the role of shape, the allometry on the different cranial anatomical points has not normally been investigated. Here, we apply geometric morphometric methods in a sample of 40 skulls from adult specimens of different wild species belonging to the family Felidae, basing the study on 14 homologous landmarks on the lateral aspect of the skull, to assess the significance of allometry. No allometric effect of skull size on general skull shape could be discerned, but based on individual analysis of the different landmarks analysed, it was evident that variables on splachnocranium -and specially those related to teeth series- did show a positive allometry with skull size. These facial landmarks are those related to feeding and acquiring prey and, thus, bigger skulls (larger wild cats) will tend to present longer dental skeletons.
Is part ofJournal of Zoological and Bioscience Research , 2014, vol. 1, núm. 4, p. 22-26
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Parés Casanova, Pere-Miquel; De la Cruz Bueno, Sara (World Science and Research Publishing, 2014-10-25)Geometric morphometrics is a powerful tool for the study of morphological variation that possesses numerous advantages over more traditional approaches based on linear measurements. Here, the skull morphologies of 42 adult ...
Parés Casanova, Pere-Miquel (OAT - Open Access Text, 2018-06-19)Te size of body parts often co-vary through exponential scaling, this is known as allometry. Allometric changes are important to the generation of morphological diversity. To make inferences regarding the evolved responses ...
Parés Casanova, Pere-Miquel; Sabaté, J. (Indian Journal of Applied Research, 2013-07-01)The skulls of 74 specimens of different species and domestic breeds of Ovis were analysed by means of geometric morphometric methods in a two-dimensional view of their lateral aspect. Specimens were grouped a priori into ...