New frontiers in dental microwear texture analysis: towards reconstruction of dinosaur paleoecology
| Project/Area Number |
20F20325
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Single-year Grants |
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| Section | 外国 |
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| Review Section |
Basic Section 17050:Biogeosciences-related
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| Research Institution | The University of Tokyo |
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Principal Investigator |
久保 麦野 東京大学, 大学院新領域創成科学研究科, 講師 (10582760)
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| Co-Investigator(Kenkyū-buntansha) |
WINKLER DANIELA 東京大学, 新領域創成科学研究科, 外国人特別研究員
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| Project Period (FY) |
2020-11-13 – 2023-03-31
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| Project Status |
Completed (Fiscal Year 2022)
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| Budget Amount *help |
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2022: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2021: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2020: ¥200,000 (Direct Cost: ¥200,000)
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| Keywords | Tooth wear / diet reconstruction / microwear / dietary ecology / tribology |
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| Outline of Research at the Start |
The project focuses on applying dental microwear texture analysis (DMTA), a method based on wear traces on teeth, to dinosaurs. Usually DMTA is applied to mammals. Recently the fellow successfully transferred it to extant reptiles, making it a promising tool to resolve niche partitioning in sympatric dinosaurs. Secondly, the project will improve comparability of DMTA between labs by investigating inter-microscope differences using a comparative dataset captured on a μsurf custom microscope by the fellow, with corresponding specimens, and re-scan these on the host's measuring system.
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| Outline of Annual Research Achievements |
Publication of four related research papers. The alligator feeding experiment and a feeding experiment with combined mechanical properties testing of foodstuffs were both published in Frontiers in Ecology and Evolution. The budget was used for open access fees. Additionally, two papers on microwear in dinosaurs were published. The host and JSPS fellow were herewith the first to apply dental microwear texture analysis for diet reconstruction to dinosaurs. Leftover budget of the KAKENHI was used to purchase assorted chemicals for an ongoing project on sika deer dental anomalies. Genetic analyses will be conducted to elucidate whether observed agenesis of third molars is inherited through the X-chromosome.
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| Research Progress Status |
令和4年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
令和4年度が最終年度であるため、記入しない。
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Report
(3 results)
Research Products
(28 results)
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[Presentation] Dental microwear texture analysis of rats receiving near-natural diets shows that seeds and insect exoskeletons cause high enamel surface complexity.2022
Author(s)
Winkler, D.E., Clauss, M., Kubo, M.O., Schulz-Kornas, E., Kaiser, T.M., De Cuyper, A., Kubo T. & Tutken, T.
Organizer
18th International Symposium on Dental Morphology (ISDM), Frankfurt (Germany)
Related Report
Int'l Joint Research
