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Digital archive of theses discussed at the University of Pisa

 

Thesis etd-10022019-100039


Thesis type
Tesi di laurea magistrale LM5
Author
FORTI, VIVIANA
URN
etd-10022019-100039
Thesis title
Comportamento agonistico e dinamiche post conflittuali, con relazione al ciclo estrale nell’Asino dell’Amiata (Equus asinus)
Department
SCIENZE VETERINARIE
Course of study
MEDICINA VETERINARIA
Supervisors
relatore Dott. Baragli, Paolo
correlatore Prof.ssa Palagi, Elisabetta
controrelatore Prof. Sighieri, Claudio
Keywords
  • metodo Post-Conflict/Matched-Control
  • gerarchia ripida
  • fase estrale
  • contatti triadici sollecitati
  • riconciliazione
Graduation session start date
25/10/2019
Availability
Full
Summary
Animal social systems imply competition and conflict of interest. To cope with dispersal forces, group-living animals use several conflict resolution tactics, which have been deeply investigated in primates, carnivores and few species of birds. Here, we focus on aggression and post-conflict behaviour in a domesticated species, the donkey. In particular, this study aimed to evaluate the presence of reconciliation and third-party interactions, and the effects of the estrous phase on these phenomena. Nine Amiata donkeys (all female and aging 5.1 ±2.1SD years, hosted at the Department of Veterinary Sciences, University of Pisa) were the subjects of the study. The animals lived together in a paddock (40x60m) with ad libitum access to food and water. We collected about 200 hours of video recordings (July-November 2013) and a subset of 90 hrs were analysed with the Post Conflict/Match Control method. Both victims and aggressors were followed for 3 minutes after an agonistic interaction. In the post-conflict time-window we observed the affiliative behaviours (genital sniffing, nasal sniffing, muzzle-body contact, follow, walk together, contact) occurring between the former aggressor and the victim (reconciliation) and between the victim or the aggressor and a bystander (triadic contacts).
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