| Budget Amount *help |
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Outline of Final Research Achievements |
Honeybee foragers carry a small amount of nectar as fuel and material of pollen loads when they leave the hive. Our study showed that the amount and concentration of nectar carried from the hive depend on distance to food source, experience, expected size of pollen load, information transferred by waggle dances and so on. We also showed the importance of concentrated nectar for successful pollen foraging, and the selective use of concentrated nectar as fuel in males, suggesting that the adjustment of fuel allowed bees to reduce the mass-dependent costs of carrying nectar.
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