Sexual dimorphism of pyrenean chamois (<i>Rupicapra p. pyrenaica</i>) based on skull morphometry

R. García-González; I. Barandalla

doi:10.3989/pirineos.2002.v157.58

Sexual dimorphism of pyrenean chamois (Rupicapra p. pyrenaica) based on skull morphometry

Authors

R. García-González Instituto Pirenaico de Ecología, CSIC. Jaca (Huesca)
I. Barandalla Instituto Pirenaico de Ecología, CSIC. Zaragoza

DOI:

https://doi.org/10.3989/pirineos.2002.v157.58

Keywords:

Pyrenean chamois, skull dimorphism, horn, discrimant functions,

Abstract

Sexual dimorphism in skull characteristics of Pyrenean chamois is studied in a sample of 85 adults (36 males and 49 females) by means of 26 quantitative variables. Skull variables were analised by multiple regression and principal component techniques. The Pyrenean chamois shows one of the smallest sexual skull dimorphisms of the Rupicapra subspecies. Only length, thickness, and related variables of horns present significant differences between sexes. Nevertheless, horn height was statistically identical in both sexes. Ecological implications of skull variability and skull variables relationships are discussed. Several discriminant functions were developed by means of discriminant analysis. Those that better identified sexes include horn core diameters. We also developed other functions based on upper skull variables that could be used to identify incomplete specimens or archaeological remains.

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Published

2002-12-30

How to Cite

García-González, R., & Barandalla, I. (2002). Sexual dimorphism of pyrenean chamois (Rupicapra p. pyrenaica) based on skull morphometry. Pirineos, 157, 25–38. https://doi.org/10.3989/pirineos.2002.v157.58

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Issue

Vol. 157 (2002)

Section

Articles

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