Sex differences in common Marmosets (Callithrix jacchus) in response to an unfamiliar food task

Primates; Journal of Primatology
Maria E YamamotoH O Box

Abstract

There is a growing body of information on sex differences in callitrichid behaviour that includes the animals' performance in food tasks. For example, both reproductive and non-reproductive adult females have been found to be more successful than adult males in solving food tasks. In this study ten adult male and ten adult female common marmosets (Callithrix jacchus), housed individually, were tested with an unfamiliar task that involved the extraction of an embedded food. The task was to open a plastic canister that contained a raisin; the open end was covered with parchment paper. Each marmoset was given 15 trials in three blocks of 5 consecutive days. We measured the latency for each animal to open the lid and get the raisin--by one of five strategies that spontaneously emerged. The females learned the task faster and more efficiently than males; all the females opened the canister on day 1, for instance, in contrast to seven of the males on the same day. Females also progressively decreased the time that they took to open the tube. The final latency on day 15, for instance, was significantly shorter for the females. These results are consistent with relevant literature for callitrichids and cannot be accounted for in terms ...Continue Reading

References

Mar 12, 1999·Physiology & Behavior·C M Nievergelt, R D Martin
Sep 7, 2000·Animal Behaviour·B Voelkl, L Huber
Jan 1, 1990·American Journal of Primatology·J J BenzD W Leger

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Citations

Mar 20, 2012·Animal Cognition·Anna Viktoria Schnoell, Claudia Fichtel
Mar 7, 2015·Scientific Reports·Sonja E Koski, Judith M Burkart
Jan 24, 2006·American Journal of Primatology·Jillian J ScottCharles T Snowdon
Oct 6, 2016·Developmental Neurobiology·Nicola Schiel, Antonio Souto
Jul 29, 2016·The Behavioral and Brain Sciences·Judith M BurkartCarel P van Schaik

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