2017 Fiscal Year Final Research Report
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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| 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 |
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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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| Free Research Field |
動物生態学
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