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dc.contributor.author
Astié, Andrea Alejandra
dc.contributor.author
Scardamaglia, Romina Clara
dc.contributor.author
Muzio, Ruben Nestor
dc.contributor.author
Reboreda, Juan Carlos
dc.date.available
2016-12-05T19:13:16Z
dc.date.issued
2015-10
dc.identifier.citation
Astié, Andrea Alejandra; Scardamaglia, Romina Clara; Muzio, Ruben Nestor; Reboreda, Juan Carlos; Sex differences in retention after a visual or a spatial discrimination learning task in brood parasitic shiny cowbirds; Elsevier Science; Behavioural Processes; 119; 10-2015; 99-104
dc.identifier.issn
0376-6357
dc.identifier.uri
http://hdl.handle.net/11336/8800
dc.description.abstract
Females of avian brood parasites, like the shiny cowbird (Molothrus bonariensis), locate host nests and on subsequent days return to parasitize them. This ecological pressure for remembering the precise location of multiple host nests may have selected for superior spatial memory abilities. We tested the hypothesis that shiny cowbirds show sex differences in spatial memory abilities associated with sex differences in host nest searching behavior and relative hippocampus volume. We evaluated sex differences during acquisition, reversal and retention after extinction in a visual and a spatial discrimination learning task. Contrary to our prediction, females did not outperform males in the spatial task in either the acquisition or the reversal phases. Similarly, there were no sex differences in either phase in the visual task. During extinction, in both tasks the retention of females was significantly higher than expected by chance up to 50 days after the last rewarded session (∼85-90% of the trials with correct responses), but the performance of males at that time did not differ than that expected by chance. This last result shows a long-term memory capacity of female shiny cowbirds, which were able to remember information learned using either spatial or visual cues after a long retention interval.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Brood Parasitism
dc.subject
Cowbird
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Spatial Memory
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Molothrus Bonariensis
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Sex Differences
dc.subject.classification
Zoología, Ornitología, Entomología, Etología
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Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Sex differences in retention after a visual or a spatial discrimination learning task in brood parasitic shiny cowbirds
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-10-04T19:26:33Z
dc.journal.volume
119
dc.journal.pagination
99-104
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Astié, Andrea Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mendoza. Instituto Argentino de Investigaciones de Zonas Aridas; Argentina
dc.description.fil
Fil: Scardamaglia, Romina Clara. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
dc.description.fil
Fil: Muzio, Ruben Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Biología y Medicina Experimental (i); Argentina
dc.description.fil
Fil: Reboreda, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina
dc.journal.title
Behavioural Processes
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.beproc.2015.07.016
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0376635715300188
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