Why did low-island Micronesians make long-distance canoe voyages?

Low-island Micronesians undertook long-distance canoe voyages for several practical and social reasons, primarily driven by the environmental limitations of their atolls and the need for resource security.

• Resource Access: Low islanders traveled to high islands—which offered more fertile soil and greater elevation—to obtain food and other essential items that were not available on their own atolls.1
• Survival and Refuge: These voyages were critical for seeking refuge following natural disasters, such as droughts or cyclones, which could devastate the limited resources of an atoll.12
• Social Connections: Travel facilitated the search for spouses and allowed islanders to visit relatives and friends.1
• Trade: Interisland trade was a well-developed practice, particularly between the low islanders of the central Carolines and the high islanders of Yap and Chuuk. Low islanders provided handicrafts, such as shell beads, plaited pandanus mats, and banana or hibiscus fiber cloth, in exchange for high-island goods like turmeric, which was used for medicinal and cosmetic purposes.2
• Expeditions: Low islanders also engaged in deep-sea trolling and made expeditions to small, uninhabited reefs to collect turtle and seabird eggs.3