[Quantitative study of encephalic components in 3 tinamid species, with an ecoethological approach (birds: Tinamidae)].
The encephalon of three tinamids: Eudromia elegans, Nothura maculosa, and Rhynchotus rufescens are quantitatively analyzed. Both relative volumes and cerebral indexes are calculated for eleven encephalic components. Results are discussed from an eco-etiological approach. The relative size of encephalic components in Eudromia, Rhynchotus, and Nothura indicate a close relationship among brain components and some behavioral patterns and the environment. Marked differences in the cerebral organization of these tinamid genera are not evident. A greater development of the wulst and low values of olfactory bulbs suggest that Eudromia and Rhynchotus are progressive species. Nothura is considered primitive.
Bee de Speroni
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Departamento de Diversidad Biológica y Ecología, Facultad de Ciencias Exactas, Físicas y Naturales Universidad Nacional de Córdoba, Argentina.
Carezzano
F
F
D000818:Animals; D001522:Behavior, Animal; D001717:Birds / Q000033:anatomy & histology*; D001921:Brain / Q000033:anatomy & histology*
Estudio cutantitativo de componentes encefálicos en tres especies de tinámidos, con un enfoque ecoetológico (aves: Tinamidae).