Experimental evidence for delayed post-conflict management behaviour in wild dwarf mongooses

In many species, within-group conflict leads to immediate avoidance of potential aggressors or increases in affiliation, but no studies have investigated delayed post-conflict management behaviour. Here, we experimentally test that possibility using a wild but habituated population of dwarf mongoose...

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Main Authors: Amy Morris-Drake, Julie M Kern, Andrew N Radford
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2021-11-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/69196
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author Amy Morris-Drake
Julie M Kern
Andrew N Radford
author_facet Amy Morris-Drake
Julie M Kern
Andrew N Radford
author_sort Amy Morris-Drake
collection DOAJ
description In many species, within-group conflict leads to immediate avoidance of potential aggressors or increases in affiliation, but no studies have investigated delayed post-conflict management behaviour. Here, we experimentally test that possibility using a wild but habituated population of dwarf mongooses (Helogale parvula). First, we used natural and playback-simulated foraging displacements to demonstrate that bystanders take notice of the vocalisations produced during such within-group conflict events but that they do not engage in any immediate post-conflict affiliative behaviour with the protagonists or other bystanders. We then used another playback experiment to assess delayed effects of within-group conflict on grooming interactions: we examined affiliative behaviour at the evening sleeping burrow, 30–60 min after the most recent simulated foraging displacement. Overall, fewer individuals groomed on evenings following an afternoon of simulated conflict, but those that did groomed more than on control evenings. Subordinate bystanders groomed with the simulated aggressor significantly less, and groomed more with one another, on conflict compared to control evenings. Our study provides experimental evidence that dwarf mongooses acoustically obtain information about within-group contests (including protagonist identity), retain that information, and use it to inform conflict-management decisions with a temporal delay.
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spelling doaj.art-16daebcc41484d7096924df1d03e1a942022-12-22T04:32:45ZengeLife Sciences Publications LtdeLife2050-084X2021-11-011010.7554/eLife.69196Experimental evidence for delayed post-conflict management behaviour in wild dwarf mongoosesAmy Morris-Drake0https://orcid.org/0000-0003-4243-4651Julie M Kern1Andrew N Radford2https://orcid.org/0000-0001-5470-3463School of Biological Sciences, University of Bristol, Bristol, United KingdomSchool of Environmental and Rural Science, University of New England, Armidale, AustraliaSchool of Biological Sciences, University of Bristol, Bristol, United KingdomIn many species, within-group conflict leads to immediate avoidance of potential aggressors or increases in affiliation, but no studies have investigated delayed post-conflict management behaviour. Here, we experimentally test that possibility using a wild but habituated population of dwarf mongooses (Helogale parvula). First, we used natural and playback-simulated foraging displacements to demonstrate that bystanders take notice of the vocalisations produced during such within-group conflict events but that they do not engage in any immediate post-conflict affiliative behaviour with the protagonists or other bystanders. We then used another playback experiment to assess delayed effects of within-group conflict on grooming interactions: we examined affiliative behaviour at the evening sleeping burrow, 30–60 min after the most recent simulated foraging displacement. Overall, fewer individuals groomed on evenings following an afternoon of simulated conflict, but those that did groomed more than on control evenings. Subordinate bystanders groomed with the simulated aggressor significantly less, and groomed more with one another, on conflict compared to control evenings. Our study provides experimental evidence that dwarf mongooses acoustically obtain information about within-group contests (including protagonist identity), retain that information, and use it to inform conflict-management decisions with a temporal delay.https://elifesciences.org/articles/69196dwarf mongoosewithin-group conflictpost-conflict behaviourdelayed conflict management
spellingShingle Amy Morris-Drake
Julie M Kern
Andrew N Radford
Experimental evidence for delayed post-conflict management behaviour in wild dwarf mongooses
eLife
dwarf mongoose
within-group conflict
post-conflict behaviour
delayed conflict management
title Experimental evidence for delayed post-conflict management behaviour in wild dwarf mongooses
title_full Experimental evidence for delayed post-conflict management behaviour in wild dwarf mongooses
title_fullStr Experimental evidence for delayed post-conflict management behaviour in wild dwarf mongooses
title_full_unstemmed Experimental evidence for delayed post-conflict management behaviour in wild dwarf mongooses
title_short Experimental evidence for delayed post-conflict management behaviour in wild dwarf mongooses
title_sort experimental evidence for delayed post conflict management behaviour in wild dwarf mongooses
topic dwarf mongoose
within-group conflict
post-conflict behaviour
delayed conflict management
url https://elifesciences.org/articles/69196
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