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原文連結
論文資訊
- 類型：已發表論文
- 日期：2012
摘要
Desert seed-harvester ants, genus Pogonomyrmex, are central place foragers that search for resources collectively. We quantify how seed harvesters exploit the spatial distribution of seeds to improve their rate of seed collection. We find that foraging rates are significantly influenced by the clumpiness of experimental seed baits. Colonies collected seeds from larger piles faster than randomly distributed seeds. We developed a method to compare foraging rates on clumped versus random seeds across three Pogonomyrmex 物種 that differ substantially in forager 族群 size. The increase in foraging rate when food was clumped in larger piles was indistinguishable across the three 物種, suggesting that 物種 with larger colonies are no better than 物種 with smaller colonies at collecting clumped seeds. These
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