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Abstract:

Spatial memory is important for animals to achieve successful foraging, reproduction, territorial defence and predator avoidance in structurally complex habitats. This cognitive function has been shown to be affected under stress conditions in surface-dwelling rodents. Here we used the Tala's tuco-tuco, Ctenomys talarum, a subterranean rodent that inhabits complex burrow systems, as a study model. This species has a highly developed spatial ability and individuals are regularly exposed to predatory stress while foraging on the surface. We examined the consequences of a single and brief exposure to predatory cues on the spatial working and reference memory performance. We trained wild-caught individuals (32 males, 36 females) in a six-arm radial maze (spatial working memory task) or a longitudinal maze (spatial reference memory task). Once the animals reached a memory performance criterion, they were exposed to a direct predatory cue (immobilization), an indirect predatory cue (cat urine odour) or both cues combined, and their memory performance was evaluated. Exposure to direct and combined predatory cues impaired spatial reference memory, increasing both the latency to achieve the goal and the number of errors during the test. Combined presentation of both predatory cues also negatively affected spatial working memory, but only for latency to achieve the goal. Our results suggest that use of spatial working memory during a predatory attack on the surface allows C. talarum to relocate burrow entries rapidly and hence increases survival probabilities. © 2008 The Association for the Study of Animal Behaviour.

Registro:

Documento: Artículo
Título:Short-term effects of an acute exposure to predatory cues on the spatial working and reference memory performance in a subterranean rodent
Autor:Mastrangelo, M.E.; Schleich, C.E.; Zenuto, R.R.
Filiación:Laboratorio de Ecofisiología Animal, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Argentina
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
Idioma: Inglés
Palabras clave:Ctenomys talarum; predation; reference memory; spatial orientation; stress; subterranean rodent; Tala's tuco-tuco; working memory; burrowing organism; environmental cue; environmental effect; environmental stress; memory; predation; rodent; spatial cognition; Animalia; Ctenomys talarum; Rodentia
Año:2009
Volumen:77
Número:3
Página de inicio:685
Página de fin:692
DOI: http://dx.doi.org/10.1016/j.anbehav.2008.11.018
Título revista:Animal Behaviour
Título revista abreviado:Anim. Behav.
ISSN:00033472
CODEN:ANBEA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00033472_v77_n3_p685_Mastrangelo

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Citas:

---------- APA ----------
Mastrangelo, M.E., Schleich, C.E. & Zenuto, R.R. (2009) . Short-term effects of an acute exposure to predatory cues on the spatial working and reference memory performance in a subterranean rodent. Animal Behaviour, 77(3), 685-692.
http://dx.doi.org/10.1016/j.anbehav.2008.11.018
---------- CHICAGO ----------
Mastrangelo, M.E., Schleich, C.E., Zenuto, R.R. "Short-term effects of an acute exposure to predatory cues on the spatial working and reference memory performance in a subterranean rodent" . Animal Behaviour 77, no. 3 (2009) : 685-692.
http://dx.doi.org/10.1016/j.anbehav.2008.11.018
---------- MLA ----------
Mastrangelo, M.E., Schleich, C.E., Zenuto, R.R. "Short-term effects of an acute exposure to predatory cues on the spatial working and reference memory performance in a subterranean rodent" . Animal Behaviour, vol. 77, no. 3, 2009, pp. 685-692.
http://dx.doi.org/10.1016/j.anbehav.2008.11.018
---------- VANCOUVER ----------
Mastrangelo, M.E., Schleich, C.E., Zenuto, R.R. Short-term effects of an acute exposure to predatory cues on the spatial working and reference memory performance in a subterranean rodent. Anim. Behav. 2009;77(3):685-692.
http://dx.doi.org/10.1016/j.anbehav.2008.11.018