2018 Fiscal Year Final Research Report
| Project/Area Number |
17K15178
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Okinawa Institute of Science and Technology Graduate University |
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Principal Investigator |
Friedman Nicholas Ryan 沖縄科学技術大学院大学, 生物多様性・複雑性研究ユニット, 研究員 (50795309)
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| Research Collaborator |
Economo Evan P.
Yoshimura Masashi
Ross Samuel R. P.-J.
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| Project Period (FY) |
2017-04-01 – 2019-03-31
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| Keywords | Soundscape Ecology / Bioacoustics / Animal Behavior / Biodiversity / Evolutionary Biology / Sensory Ecology |
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| Outline of Final Research Achievements |
The overall goal of this project was to develop an acoustic monitoring program on Okinawa to measure biodiversity and test hypotheses about its response to anthropogenic disturbance. I installed recorders at 24 sites across the main island of Okinawa, maintained in collaboration with the Okinawa Environmental Observation Network (OKEON). In a proof of concept, I demonstrated my ability to compare biodiversity across time and space using soundscape indices, and to automatically detect bird species. Subsequent analyses have addressed the three principal aims of this grant: (1) to estimate alpha diversity using bioacoustics, (2) to compare acoustic beta diversity among urban and rural sites, and (3) to map the spatial distribution of sound across Okinawa. I show that acoustic diversity decreases with disturbance, and that urban sites are more different from each other than rural sites. Beyond publications, I used public events and museum exhibits to communicate my results to the public.
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| Free Research Field |
Basic Biology
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| Academic Significance and Societal Importance of the Research Achievements |
My study began a natural history archive that is a record of Okinawa’s biodiversity. I demonstrated a proof of concept for acoustic monitoring, and addressed three ecological questions. My research was reported to society by publications, lectures, a museum exhibit, and several media appearances.
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