Experimental resource pulses influence social-network dynamics and the potential for information flow in tool-using...

Area of Science:

• Behavioral Ecology
• Animal Social Networks

Background:

• Social networks influence biological processes like information flow.
• Studying wild animal social dynamics is challenging.
• New Caledonian crows are tool-users with potential for social learning.

Purpose of the Study:

• To investigate social network dynamics in wild New Caledonian crows.
• To understand how environmental changes affect social network structure.
• To examine information diffusion within crow social networks.

Main Methods:

• Utilized novel transceiver technology to map association patterns over 19 days.
• Manipulated environmental availability of tool-extracted prey.
• Simulated information diffusion using in silico models on time-ordered networks.

Main Results:

• Social network structure rapidly adapted to environmental changes.
• Novel information spread quickly within multi-family crow communities, especially with tool-use opportunities.
• Limited social contact observed between neighboring crow communities.

Conclusions:

• Environmental factors significantly impact social network topology in wild crows.
• Scale-dependent information flow dynamics are crucial for the evolution of material culture.
• Tool-use opportunities may enhance social learning and information transmission in crow populations.