IBIGEO   22622
INSTITUTO DE BIO Y GEOCIENCIAS DEL NOA
Unidad Ejecutora - UE
artículos
Título:
Anuran Locomotion: Ontogeny and Morphological Variation of a Distinctive Set of Muscles
Autor/es:
FABREZI, M.; A. MANZANO; ABDALA, V.; LOBO, F.
Revista:
EVOLUTIONARY BIOLOGY
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2014 vol. 41 p. 308 - 326
ISSN:
0071-3260
Resumen:
Adult morphological variation of muscles originating
on the iliac shaft (M. iliacus externus, M. internus,
and tensor fasciae latae) and vertebrae (M. longissimus dorsi,
M. coccygeosacralis, and M. coccygeoiliacus) that are
involved in postmetamorphic anuran locomotion was
recorded in 41 neobatrachians and coded in 13 more based on
the literature, for a total of 54 anuran species. In addition, we
explored the spatial and temporal sequences in the ontogeny
of these set of muscles from larval series of 19 neobatrachians
whose adults differ in locomotion and lifestyle. Our
findings suggest that: (1) jumping, swimming, and/or walking
are capabilities that could have been achieved from
novelties of limbs and protractor muscles of the femur rather
than from changes in the axial musculoskeletal system; (2)
the initial ontogenetic phase of the locomotion comprises the
capability to escape, when the tail is still present; (3) the
secondary phase of locomotion comprises changes in the
axial skeleton and muscles integrated to the pelvis and might
develop simultaneously with the new feeding mechanism of
the recently metamorphosed frog.