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Yoneda Lab
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The lab reconstructs how people lived in the past from isotopes preserved in their bones.
AboutAbout the lab
Human–environment relationships through isotope ecology
The Yoneda Lab uses isotopes as indicators to study the distinctive nature of humans, who have adapted to a wide range of environments through culture.
Working with archaeologists, the lab has reconstructed the lives of people in the Jomon period from an ecological perspective.
It also examines animals and plants that lived near settlements to study when and how cultivation and domestication began.
The lab is also developing methods that use isotopes to read the lives of past animals and plants that can no longer be observed directly.
Key terms
- Isotope
- Atoms of the same element with slightly different masses. Their proportions in the body vary with food and environment.
- Radiocarbon
- Carbon that decays at a constant rate over time. The amount remaining shows how long ago an organism died.
- Coevolution
- A phenomenon in which different organisms evolve together while influencing one another.
ResearchResearch themes
The lab aims to apply information from Japan's abundant archaeological sites not only within a historical framework but also to the understanding of human evolution. Its research uses instruments that measure carbon and nitrogen isotope ratios, as well as an accelerator mass spectrometer that determines ages by radiocarbon dating.
*Illustrative imageHuman adaptation seen through diet
The lab reads life in adulthood from ancient human bones and life in childhood from tooth enamel. Focusing on the Japanese archipelago, it studies the diversity of adaptive strategies among people in the past.
*Illustrative imageDomestication, cultivation, and the origins of agriculture
The lab treats the process by which humans came to use particular animals and plants as livestock and crops as coevolution, and studies it from both the human side and the animal and plant side.
*Illustrative imageUnderstanding society through individual differences in bones
The lab reads social change from individual differences in bone isotope ratios. In addition to using bones from the Japanese archipelago from the Jomon to the Kofun period, it is carrying out a project exploring the background to the rise of states and civilization in China.
MembersFaculty
- ProfessorMinoru YonedaPublications ↗
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Omori Shell Mound, danmen” Saigen Jiro / CC0 (cropped)
- Human adaptation seen through diet: “Jomon people Skull - Niigata Prefectural Museum of History” inazakira / CC BY-SA 2.0 (cropped)
- Domestication, cultivation, and the origins of agriculture: “Maize-teosinte” John Doebley / CC BY 3.0 (cropped)
- Understanding society through individual differences in bones: “Horinouchi Woman (Detail)” Fred Cherrygarden / CC BY-SA 4.0 (cropped)
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