Dear Colleagues,
On behalf of my co-authors, I am happy to announce our recent
publication in'Behavioral Ecology and Sociobiology': Extreme ecological
constraints lead to high degree of individual stereotypy in the vocal
repertoire of the Cape fur seal (/Arctocephalus pusillus pusillus/)
Mathilde Martin, Tess Gridley, Simon Harvey Elwen, Isabelle Charrier
BES (2021),
https://doi-org.proxy.scd.u-psud.fr/10.1007/s00265-021-03043-y
<https://doi-org.proxy.scd.u-psud.fr/10.1007/s00265-021-03043-y>
Abstract:
The ability to recognize the identity of conspecifics is a key component
for survival of many animal species and is fundamental to social
interactions such as parental care, intra-sexual competition or mate
recognition. In group-living species, the simul- taneous co-existence of
many individuals increases the number of interactions and reinforces the
need for individual recogni- tion. Acoustic signals are widely used by
birds and mammals to communicate and to convey information about
identity, but their use in very dense colonies becomes challenging due
to the high level of background noise and the high risk of confusion
among individuals. The Cape fur seal (CFS) is the most colonial pinniped
species and one of the most colonial mammals in the world, with colonies
of up to 210,000 individuals during the breeding season. Here, we
investigated the individual stereotypy in vocalizations produced by
pups, females and male CFS using Random Forests and index of vocal
stereotypy (IVS). We thus compared IVS values of CFS to other pinniped
species. Within CFS we identified individuality in all call types but
the degree of individual stereotypy varies in regard to their social
function: affiliative calls produced in a mother–pup reunion context and
territorial calls produced by mature bulls holding harem were more
individualized than vocalizations involved in agonistic inter- actions.
Our inter-species comparisons among pinnipeds showed that CFS
affiliative and territorial calls displayed higher degrees of
individuality compared to other species with similar or lower ecological
constraints (colony density and social structure).
Please feel free to email me for a pdf copy
at:mathilde.mar...@universite-paris-saclay.fr
<mailto:stephanie.pl...@gmail.com>
--
*Mathilde MARTIN*
PhD Student
Acoustic Communications Team, Department Cognition & Network Neuroscience
NeuroPSI - Paris-Saclay Institute of Neuroscience
Rue Claude Bernard, Bat. 446, 91405 Orsay, FRANCE
https://neuropsi.cnrs.fr
Tel: +33 (0)1 69 15 49 63
Email: mathilde.mar...@universite-paris-saclay.fr
Website: https://mathildemartin-research.com/
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