The occurrence and benefits of postconflict bystander affiliation in wild Barbary macaques, Macaca sylvanus

Mcfarland, Richard and Majolo, Bonaventura (2012) The occurrence and benefits of postconflict bystander affiliation in wild Barbary macaques, Macaca sylvanus. Animal Behaviour, 84 (3). pp. 583-591. ISSN 0003-3472

Documents
McFarland_&_Majolo_AB_2012.pdf
[img]
[Download]
Request a copy
[img] PDF
McFarland_&_Majolo_AB_2012.pdf
Restricted to Registered users only

258kB

Official URL: http://dx.doi.org/10.1016/j.anbehav.2012.06.010

Abstract

The majority of studies investigating conflict management in animal societies have focused on the role of reconciliation in mediating the costs of aggression. The function of bystander affiliation (i.e. the selective attraction between an opponent and a bystander in the minutes immediately following aggression) is less well understood. We examined, in wild Barbary macaques, four potential functions of bystander affiliation with the victim of aggression: (1) bystander-initiated affiliation to reduce the victim’s postconflict (PC) anxiety (i.e. ‘consolation’), (2) victim-initiated affiliation (i.e. ‘solicited consolation’), (3)
victim- and bystander-initiated affiliation to avert redirected aggression (i.e. self-protection), and (4)
bystander-initiated affiliation to exploit grooming from the victim. We found partial support for the consolation function as bystander-initiated affiliation occurred more frequently between high-quality social partners but had no effect on the victim’s PC anxiety. In support of the solicited-consolation function, victim-initiated affiliation occurred more frequently between high-quality social partners and also caused a reduction in the victim’s PC anxiety. These findings suggest that solicited consolation
may substitute for the stress alleviation role of reconciliation. We found no support for a self-protective
function as neither the bystander’s nor the victim’s risk of receiving PC aggression was reduced following
bystander affiliation with the victim. Finally, bystanders received significantly more PC grooming than
victims, suggesting that grooming exploitation of the victim may drive the bystander’s PC behaviour. Our
results indicate that bystander affiliation has different functions and benefits for the victim of aggression
and the bystander, and highlights the importance of considering which individual initiates this behaviour.

Item Type:Article
Keywords:conflict management, Barbary macaque, morocco, grooming, social behaviour
Subjects:C Biological Sciences > C120 Behavioural Biology
C Biological Sciences > C800 Psychology
Divisions:College of Social Science > School of Psychology
ID Code:6144
Deposited By: Bonaventura Majolo
Deposited On:15 Sep 2012 14:17
Last Modified:17 Jul 2014 11:44

Repository Staff Only: item control page