INVESTIGADORES
SCHLEICH Cristian Eric
artículos
Título:
Testing magnetic orientation in a solitary subterranean rodent Ctenomys talarum (Rodentia: Octodontidae)
Autor/es:
SCHLEICH, C.E.; ANTINUCHI, C.D.
Revista:
ETHOLOGY
Editorial:
Blackwell Verlag
Referencias:
Año: 2004 vol. 110 p. 485 - 495
ISSN:
0179-1613
Resumen:
To test for the hypothesis that Ctenomys talarum can use the earths magnetic
field for spatial orientation, we carried out field and laboratory experiments to
analyse if C.tala rum burrows present any geomagnetic orientation in their natural
habitat, if C.tala rum show any spontaneous directional preference when starting
to excavate their burrows and if this subterranean rodent is capable to use the
earths magnetic field to orient towards a goal in a complexmaze. No correlation
between the burrowing direction and the earths magnetic field was found. We
could not find any evidence for any spontaneous directional preference when
starting to excavate the burrows in C.tala rum. The change of the horizontal
vector of the geomagnetic field did not affect the ability of this rodent to orient
towards a goal in an artificial labyrinth. Explanations for these results and other
possible mechanisms of orientation that could be used by C.tala rum are
discussed.Ctenomys talarum can use the earths magnetic
field for spatial orientation, we carried out field and laboratory experiments to
analyse if C.tala rum burrows present any geomagnetic orientation in their natural
habitat, if C.tala rum show any spontaneous directional preference when starting
to excavate their burrows and if this subterranean rodent is capable to use the
earths magnetic field to orient towards a goal in a complexmaze. No correlation
between the burrowing direction and the earths magnetic field was found. We
could not find any evidence for any spontaneous directional preference when
starting to excavate the burrows in C.tala rum. The change of the horizontal
vector of the geomagnetic field did not affect the ability of this rodent to orient
towards a goal in an artificial labyrinth. Explanations for these results and other
possible mechanisms of orientation that could be used by C.tala rum are
discussed.C.tala rum burrows present any geomagnetic orientation in their natural
habitat, if C.tala rum show any spontaneous directional preference when starting
to excavate their burrows and if this subterranean rodent is capable to use the
earths magnetic field to orient towards a goal in a complexmaze. No correlation
between the burrowing direction and the earths magnetic field was found. We
could not find any evidence for any spontaneous directional preference when
starting to excavate the burrows in C.tala rum. The change of the horizontal
vector of the geomagnetic field did not affect the ability of this rodent to orient
towards a goal in an artificial labyrinth. Explanations for these results and other
possible mechanisms of orientation that could be used by C.tala rum are
discussed.C.tala rum show any spontaneous directional preference when starting
to excavate their burrows and if this subterranean rodent is capable to use the
earths magnetic field to orient towards a goal in a complexmaze. No correlation
between the burrowing direction and the earths magnetic field was found. We
could not find any evidence for any spontaneous directional preference when
starting to excavate the burrows in C.tala rum. The change of the horizontal
vector of the geomagnetic field did not affect the ability of this rodent to orient
towards a goal in an artificial labyrinth. Explanations for these results and other
possible mechanisms of orientation that could be used by C.tala rum are
discussed.C.tala rum. The change of the horizontal
vector of the geomagnetic field did not affect the ability of this rodent to orient
towards a goal in an artificial labyrinth. Explanations for these results and other
possible mechanisms of orientation that could be used by C.tala rum are
discussed.C.tala rum are
discussed.