Reexamination of a Single-Large-Or-Several-Small habitat issue: effects of interspecific trade-off between superior competitor and superior disperser on coral reef damselfish community structure
| Project/Area Number |
15K07218
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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 | Shiga University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 海洋生態 / サンゴ礁 / メタ群集 / 種数面積関係 / 多種共存 / 景観構造 / 生息地の構造 / 景観 / 行動観察 / 画像解析 / 種間なわばり |
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| Outline of Final Research Achievements |
I observed home range and microhabitat use of 10 damselfish species in a quadrat including 4 small patch reefs, on Shiraho Reef, Ishigaki Island, 2017, in order to know effects of interspecific trade-off between superior competitors that occupy particular microhabitats and superior dispersers that move between reefs using several microhabitats on the SLOSS issue (a Single-Large-Or-Several-Small habitats, which is better in terms of species richness, if the total area is equivalent). As a typhoon had hit on Shiraho Reef, 2015, moving several small patch reefs, I could not use commercial aerial photographs as observational maps and had to take photos using a drone by myself. Consequently, niche-partitioning and the interspecific trade-off were well observed and multiple species coexistence was attributable to “several small patch reefs”. However, the sample size was insufficient because the drone took much time. In 2018, I am still going to continue the observations without this grant.
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Report
(4 results)
Research Products
(7 results)
