Applications of geometric morphometric analysis in describing sexual dimorphism in shell shapes in Vivipara angularis Muller (Family Viviparidae)
Journal Title: Animal Biology & Animal Husbandry - International Journal of the Bioflux Society - Year 2012, Vol 4, Issue 1
Abstract
Prior studies have shown different insights about sexual shell dimorphism in the snails of familyViviparidae. This study was conducted to evaluate and determine the occurence of sexual dimorphism and shape variation in the shells of the viviparid snail, Vivipara angularis Muller, from three characters (ventral/aperture, dorsal, and top/whorl) using geometric morphometric analyses. All the three shell characters exhibited significant sexual shell dimorphism, this may be due to adaptations for brooding of the viviparid snails. Results indicate employment of different shell characters subjected to geometric morphometric analysis other than the aperture, in order to discriminate between sexes of the snails accurately
Authors and Affiliations
Carlo Moneva, Cesar Demayo, Mark Torres
Keywords
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