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Personality underground: evidence of behavioral types in the solitary subterranean rodent Ctenomys talarum.


ABSTRACT: Background:Animal personalities have been studied in a wide variety of taxa, but among rodents, available studies are relatively scarce and have focused mainly on social species. In this study, we evaluated the existence of personality in the solitary subterranean rodent Ctenomys talarum. Specifically, we aimed to test individual differences in behavior that are stable over time and context in males of C. talarum captured in the wild. Methods:Our experimental design included two series of three behavioral tests each, carried out with a 35 day time interval. Each series included an Open Field test, a Social Encounter test, and an Open Field test with a predator stimulus. Results:Of the total recorded behaviors, 55.55% showed temporal consistency. Principal component analysis of consistent behaviors grouped them into four dimensions that explain inter individual behavioral variability, in order of importance: activity, socioaversion, boldness and exploration. Therefore, our results suggest that the concept of animal personality is applicable to C. talarum and the dimensions found are in accordance with the ecological and behavioral characteristics of this species.

SUBMITTER: Fanjul MS 

PROVIDER: S-EPMC7034374 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Personality underground: evidence of behavioral types in the solitary subterranean rodent <i>Ctenomys talarum</i>.

Fanjul María Sol MS   Zenuto Roxana R RR  

PeerJ 20200218


<h4>Background</h4>Animal personalities have been studied in a wide variety of taxa, but among rodents, available studies are relatively scarce and have focused mainly on social species. In this study, we evaluated the existence of personality in the solitary subterranean rodent <i>Ctenomys talarum</i>. Specifically, we aimed to test individual differences in behavior that are stable over time and context in males of <i>C. talarum</i> captured in the wild.<h4>Methods</h4>Our experimental design  ...[more]

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