| Project/Area Number |
25440241
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Ecology/Environment
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| Research Institution | Saga University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
KUDO SHIN-ICHI 鳴門教育大学, 大学院学校教育研究科, 准教授 (90284330)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 亜社会性 / ツチカメムシ / 家族融合 / 抜け駆け / 側社会性ルート / 真社会性 / 擬似社会性 / 亜社会性ツチカメムシ |
|---|
| Outline of Final Research Achievements |
In a subsocial burrower bug, Adomerus triguttulus, whose females show parental care such as guarding and provisioning of food after oviposition, a phenomenon of “family combining”, whereby two families mix and the mothers provide food to the combined nymphs under natural conditions, was recently discovered. The present study examined whether “family combining” could progress toward the more developed social system, “quasisociality”, through field and laboratory studies to investigate the formation process and causal factors of family combining, as well as inter-familial interactions. The findings suggest that evolutionary transition to the more developed social system though “family combining” for this species would be difficult because a “cheating” female who abandons the provisioning task, leaving the other female to provision the entire brood of combined nymphs, and begins to prepare for her subsequent nest brooding will often arise when family combining occurs.
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