| Budget Amount *help |
¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
Fiscal Year 2014: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2012: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
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| Outline of Final Research Achievements |
Colony composition of 15 species of genus Gnamptogenys was studied in Southeast Asia. 13 of 15 species were reproduced by dealated queens without worker sexual reproduction. In G. menadensis, both dealated queens and mated workers laid eggs. Former colonies showed monogyny while the later colonies were polygyny. In G. bicolor, large ergatoid queens, dealated queens or mated workers reproduced. The colonies were always monogyny. Large ergatoid queens had been found only in East Java, where no alate queens were collected. Mated workers also reproduced in East Java. In the other populations, mated workers and dealated queens laid eggs. Body size of alate/dealate queens varied among populations.
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