INVESTIGADORES
SCHLEICH Cristian Eric
artículos
Título:
Energetic expenditure during vocalization in pups of the subterranean rodent Ctenomys talarum
Autor/es:
SCHLEICH, C.E, BUSCH, C
Revista:
NATURWISSENSCHAFTEN
Editorial:
Springer Verlag
Referencias:
Lugar: Heidelberg; Año: 2004 vol. 91 p. 548 - 551
ISSN:
0028-1042
Resumen:
Theoretical signaling models predict that to be
honest, begging vocalizations must be costly. To test this
hypothesis, oxygen consumption was measured during
resting and begging (i.e., vocalizing) activities in pups of
the subterranean rodent Ctenomys talarum by means of
open-flow respirometry. No statistical differences in individual
oxygen consumption between resting and calling
pups ranging in age from day 2 to day 20 were found.
Given these data, begging calls of C. talarum could not be
considered as honest advertisements of offspring need,
contrary to what suggested by the behavioral observations
of the mother and pups during the nestling periodCtenomys talarum by means of
open-flow respirometry. No statistical differences in individual
oxygen consumption between resting and calling
pups ranging in age from day 2 to day 20 were found.
Given these data, begging calls of C. talarum could not be
considered as honest advertisements of offspring need,
contrary to what suggested by the behavioral observations
of the mother and pups during the nestling periodC. talarum could not be
considered as honest advertisements of offspring need,
contrary to what suggested by the behavioral observations
of the mother and pups during the nestling period