| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
Island organism is an ideal model to research evolution given that the evolutionary process proceeds almost independently. However, even the ideal model has a critical weak point suspending long term in which we cannot observe initial stage of evolution on islands, simply because oceanic islands are normally very old. Therefore, I challenged to research spiders on young artificial islands, which have been created within 85 years, to detect what kind of evolutionary factor influences population and community on the newborn archipelago. As results, unexpectedly fast behavioural evolution was discovered, meaning that an island organism evolves behavioural features from the first stage of colonization.
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