Variance in Centrality within Rock Hyrax Social Networks Predicts Adult Longevity
2011

Social Networks and Longevity in Rock Hyraxes

Sample size: 34 publication 10 minutes Evidence: moderate

Author Information

Author(s): Baracas Adi, Ilany Amiyaal, Koren Lee, Kam Michael, Geffen Eli

Primary Institution: Tel Aviv University

Hypothesis

Social factors influence adult longevity in social mammals.

Conclusion

Groups with more equal social associations have members that live longer.

Supporting Evidence

  • Social integration of adult females is positively associated with infant survival.
  • Adult longevity is inversely correlated to the variance in centrality within social groups.
  • Groups with more equal social ties have members that experience less stress.

Takeaway

Hyraxes that have friends and live in smaller groups tend to live longer. If everyone in the group is treated equally, they are happier and healthier.

Methodology

The study used 11 years of behavioral data and network theory to analyze social interactions and their impact on longevity.

Potential Biases

Potential bias in social interaction recording due to observational limitations.

Limitations

The study focused only on one species and may not generalize to other social mammals.

Participant Demographics

The study involved adult female rock hyraxes primarily, with some males included.

Statistical Information

P-Value

0.007

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0022375

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