Variation in grouping patterns, mating systems and social structure: what socio-ecological models attempt to explain

Area of Science:

• Primate social behavior
• Socio-ecological modeling

Background:

• Socio-ecological models predict social systems from ecological factors.
• Models evolved into two paths: grouping/mating systems and grouping/female social structure.
• Primate mating systems often involve female defense polygyny, but male resource defense is also observed.

Purpose of the Study:

• Review socio-ecological models in non-human primates.
• Present new findings on primate social structure and ecology.
• Investigate the link between ecology and primate mating systems.

Main Methods:

• Comparative analysis of primate social systems.
• Testing predictions of socio-ecological models.
• Examining relationships between ecological parameters and social variables like despotism.

Main Results:

• The link between ecology and primate mating systems is underexplored.
• Contrary to predictions, agonistic rates and despotism were not associated in a comparative test.
• Variation in despotism is likely influenced by phylogenetic grade shifts.

Conclusions:

• Socio-ecological models may predict social variation within primate clades.
• The models' utility in predicting social variation across clades is limited.
• Further research is needed to refine socio-ecological models for primate behavior.