학술논문
Cranial sexual discrimination in hatchling broad-snouted caiman (Caiman latirostris)
Document Type
article
Source
Iheringia. Série Zoologia. March 2007 97(1)
Subject
Language
English
ISSN
0073-4721
Abstract
Broad-snouted caiman (Caiman latirostris) hatchlings present a consistent sexual dimorphism in their cranium shape and size. Male hatchlings have smaller crania than females. Using multivariate statistical analyses it is possible to discriminate sex in broad-snouted caiman hatchlings by their cranial shape with a reasonable efficiency. The understanding of sexual dimorphism of crocodilian hatchlings might be possibly improved by experimental approach considering, genetic and phenotypic variables such as incubation temperature and clutch of origin.