Stable individual differences in separation calls during early development in cats and mice

Frontiers in Zoology
Robyn HudsonHeiko G Rödel

Abstract

The development of ethologically meaningful test paradigms in young animals is an essential step in the study of the ontogeny of animal personality. Here we explore the possibility to integrate offspring separation (distress) calls into the study of consistent individual differences in behaviour in two species of mammals, the domestic cat (Felis silvestris catus) and the mound-building mouse (Mus spicilegus). Such vocal responses in young mammals are a potentially useful test option as they represent an important element of mother-offspring communication with strong implications for offspring survival. In addition, the neural control of vocalisation is closely associated with emotional state. We found marked similarities in the pattern of individual responses of the young of both species to separation from their mother and littermates. In the domestic cat as well as in the mound-building mouse, individual differences in the frequency of calls and to a lesser extent in locomotor activity were repeatable across age, indicating the existence of personality types. Such consistencies across age were also apparent when only considering relative individual differences among litter siblings. In both species, however, individual pattern...Continue Reading

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Citations

Mar 5, 2016·Developmental Psychobiology·Péter SzencziRobyn Hudson
Jun 19, 2019·Developmental Psychobiology·Aurélie VerjatChristophe Féron
Jun 5, 2020·Animals : an Open Access Journal From MDPI·Sandra Martínez-ByerOxána Bánszegi
Sep 2, 2020·Animals : an Open Access Journal From MDPI·Isadora de Castro TravnikAline Cristina Sant'Anna
Mar 2, 2018·Current Zoology·Jessica L OwensSara Waller

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Software Mentioned

R package lme4
R
R package rptR

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