Skip to Main content Skip to Navigation
New interface
Journal articles

Canine size, condition and health in wild boars

Abstract : Canines in wild boar Sus scrofa constitute weapons used in male-male conflict. We analyzed extensive data for the ecological correlates of canine size in several study sites in Extremadura, Spain, to determine their degree of condition-dependence and their relationship with health status. Boars with relatively large body size had larger canines than small boars. Canine size was larger in estates without livestock, in estates with low population density, and in estates with rich holmoak forest. These findings are consistent with predictions for condition-dependent secondary sexual characters. Boars with relatively large canines had large spleens for their body size, higher prevalence of Aujeszky's disease and higher prevalence of macroscopic lesions compatible with Bovine Tuberculosis than boars with relatively small canines. Thus, boars with large canines that were likely to be dominant and have differential access to females were in poorer health than boars with small canines. Since the virus responsible for Aujeszky's disease and Mycobacterium bovis are readily transmitted through direct contact during mating, we suggest that there is sexual conflict over mating. Boars with large canines that are most likely to copulate with sows are also the boars that are most likely to be a direct cause of transmission of disease in these sows.
Document type :
Journal articles
Complete list of metadata
Contributor : Anders Moller Connect in order to contact the contributor
Submitted on : Thursday, November 26, 2020 - 9:12:35 AM
Last modification on : Friday, November 18, 2022 - 2:17:39 PM
Long-term archiving on: : Saturday, February 27, 2021 - 6:20:27 PM


Files produced by the author(s)


  • HAL Id : hal-03024870, version 1



P Fernández-Llario, Anders Pape Møller. Canine size, condition and health in wild boars. Journal of Zoology, 2019. ⟨hal-03024870⟩



Record views


Files downloads