Do dogs (Canis lupus familiaris) prefer family?
Kin recognition requires the ability to discriminate between one's own genetic relatives and non-relatives. There are two mechanisms that aid in kin discrimination: phenotype matching and familiarity. Dogs may be a good model for assessing these mechanisms as dogs are a promiscuous social species with a keen sense of smell. Domestic dogs of both sexes were presented with two scents (close kin, distant-kin) and preference was assessed through three measures (latency to approach, number of visits, time spent). Experiment 1 explored the possibility of phenotype matching as subjects had no contact with sires, whose scent was presented alongside a control male's scent. Experiment 2 explored recognition of siblings raised with the subjects and then separated at seven weeks of age. Whereas female dogs in this experiment did not show a statistically significant preference, male dogs showed a preference for distant-kin when presented with sire and female sibling samples.
Oakland University, USA.
Jennifer
J
Hamilton
Oakland University, USA. Electronic address: vonk@oakland.edu.
Jennifer
J
Vonk
D000818:Animals; D001522:Behavior, Animal / Q000502:physiology; D004285:Dogs / Q000502:physiology* / Q000523:psychology*; D005190:Family; D005260:Female; D008297:Male; D009812:Odorants; D021641:Recognition, Psychology / Q000502:physiology*; D035781:Siblings; D012903:Smell; D012919:Social Behavior
Domestic dogs; Kin discrimination; Kin preference; Phenotype matching