Foragers and Their Tools: Risk, Technology and Complexity.

Area of Science:

• Archaeology
• Anthropology
• Environmental Science

Background:

• Forager subsistence technologies exhibit significant spatial and temporal variation.
• Existing literature often links technological complexity to subsistence failure risk.

Purpose of the Study:

• To review causal factors of technological variation in forager communities.
• To critically analyze the risk-based hypothesis for complex technologies.
• To propose an alternative explanation for technological diversity.

Main Methods:

• Literature review of causal factors in forager technology.
• Analysis of the risk-based hypothesis and its empirical support.
• Development of an alternative model based on environmental seasonality and resource predictability.

Main Results:

• The risk-based hypothesis is challenged by dubious risk proxies and counterexamples like desert foragers.
• Reduced opportunity costs in seasonal environments favor complex technologies.
• High-value, predictable resources in seasonal environments support complex toolkits.

Conclusions:

• Environmental seasonality and resource characteristics offer a more robust explanation for forager technological variation.
• Future research should consider environmental variation's role in long-term toolkit evolution.