Change in social behaviour with age
For this analysis, separation of dolphins of known age and sex in 3 different age groups :
Calf = age 0 to 3 years
Results :
• Higher degree for males compared to females
• Males increased their clustering coefficient when aging
• Closeness: no significant change
Young = age 4 to 10 years
Results :
• Males had lower degree scores and increased less their degree than females
• Males had a higher clustering coefficient compared to females
• Males decreased their clustering coefficient with age compared to females
• Closeness: no significant change
Older = older than 10 years
Results :
No significant change for all metrics.
Social similarity between mother and offspring
Significant and positive relationship between mother closeness and offspring closeness. Sex of the calf did not have an influence.
No significant relationship between a mother and its offspring clustering coefficient.
Significant and positive relationship between mother degree and offspring degree. Sex of the calf did not have an influence.