Canine Domestication, Social
Structure and Behavioural Influences
Why Social Structure Matters in Domestic Dogs
Different social interactions like altruism, reciprocity, and kin selection serve group evolutionary needs. Factors influencing behaviour and evolution include anti-predator defence, location and food selection, environment, conditioning, habituation, associative and insight learning, and migration (Begum et al., 2026).
In the UK, free-ranging dogs (FRDs) are absent due to laws, but globally, they make up about 80% of the dog population, living near wildlife or urban areas. They form autonomous social structures (Range & Marshall-Pescini, 2022) but remain influenced by humans (Lazzaroni et al., 2025). Early studies suggest a conflicted social system; these dogs were seen as nuisances and couldn't form social groups due to being moved often (Bradshaw, 2011). Social structure describes how animals organise in groups, including roles, interactions, and resource division (Nayeri et al., 2025).
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For both FRD’s and companion dogs, social structure provides several key benefits:
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Conflict Reduction: Stable relationships allow dogs to predict the behaviour of others, reducing anxiety and aggression. However, clear social roles and agnostic behaviours help minimise direct conflicts over resources such as food, space, or mating opportunities (Pal, 2003).
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Cooperation and Learning: Social living facilitates learning through observation and imitation. Puppies, for example, learn bite inhibition, play, and communication skills by interacting with older dogs (Lazzaroni et al., 2019).
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Resources: Social structures help allocate access to resources, ensuring group cohesion and survival in environments where competition might otherwise be intense. Whilst searching for resources, dogs have become recognised as one of the top 5 threats to nature (Cortés et al., 2026)
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Emotion: Consistent social relationships, whether with other dogs or humans, provide emotional support, reduce stress, and encourage stable behaviour patterns (Lazzaroni et al., 2025).
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Heritability: Inherited genetic factors influence a variation of social behaviour and environmental factors in free-ranging dogs (Blenkuš et al., 2025) and specific breeds (Pérez-Guisado et al., 2006; Liinamo et al., 2007).