Ichiro Tayasu
Biographic Data
| ID | 4018685 |
|---|---|
| NAME | Ichiro Tayasu |
| GIVEN NAMES | Ichiro |
| FAMILY NAME | Tayasu |
| SIGNATURE | TAYASU I |
| AFFILIATIONS | Research Institute for Humanity and Nature |
| ORCID | 0000-0002-3006-7973 |
| VERIFIED | Yes |
| TOTAL WORKS | 6 |
| TOTAL CITATIONS | 28 |
| AUTHOR COUNT | 6 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2010 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 2 |
Regional estimation by oxygen isotope ratio analysis using tooth enamel of Japanese individuals
In the field of forensic sciences, human teeth are used to identify individuals in cases involving unidentified bodies. In recent years, isotope analysis of tooth enamel has been increasingly employed to estimate birth year and place of birth. The enamel is formed between the prenatal period and childhood, and after the tooth crown is complete, it does not undergo additional growth. Therefore, the oxygen isotope composition of the enamel bioapati…
Paleovegetation dynamics in an alternative stable states landscape in the montane Western Ghats, India
Peat deposits (>50 ka) in the montane Nilgiris (Western Ghats, India), have been central to the reconstruction of late Quaternary paleoclimate using paleovegetation changes in the forest-grassland vegetation mosaic that coexist here. However, it is well-known that short-term disturbances can also cause vegetation switches when multiple stable vegetation states exist. We studied paleovegetation changes within the alternative stable states framewor…
Collagen turnover and isotopic records in cortical bone
Bone collagen of modern and ancient animals is a useful tissue for isotope analyses because it is stable over time. However, uncertainty regarding metabolic turnover processes of bone collagen can make isotope analysis difficult to correlate with relevant life history information. We used radiocarbon (14C) dating to examine turnover within cortical bone and to investigate retrospective isotope ratios along the growth direction of mid-shaft femurs…
Sources of Dissolved Inorganic Carbon in Two Small Streams with Different Bedrock Geology
Radiocarbon natural abundances (Δ 14 C) are being increasingly used to trace carbon cycling in stream ecosystems. To understand the ultimate sources of carbon, we determined the stable carbon isotope ratios (δ 13 C) and Δ 14 C values of dissolved inorganic and organic carbon (DIC and DOC, respectively) and of particulate organic carbon (POC) in two small streams in central Japan, one of which flows over limestone bedrock (Seri) and the other does…
Reconstruction of Ancient Trade Routes in the Japanese Archipelago Using Carbon and Nitrogen Stable Isotope Analysis
Effects of Vegetation Switch and Subsequent Change in Soil Invertebrate Composition on Soil Carbon Accumulation Patterns, Revealed by Radiocarbon Concentrations
Vegetation types strongly affect soil organic carbon (SOC) accumulation in the terrestrial ecosystem through multiple factors such as litter quality and soil biodiversity. However, the roles of soil fauna in SOC accumulation remain unclear. The objectives of this study were to (1) examine how changes in litter types and soil animal communities affect SOC accumulation in continuously forested or vegetation-switched forest areas; and (2) discuss th…
Collagen turnover and isotopic records in cortical bone
Bone collagen of modern and ancient animals is a useful tissue for isotope analyses because it is stable over time. However, uncertainty regarding metabolic turnover processes of bone collagen can make isotope analysis difficult to correlate with relevant life history information. We used radiocarbon (14C) dating to examine turnover within cortical bone and to investigate retrospective isotope ratios along the growth direction of mid-shaft femurs…
Sources of Dissolved Inorganic Carbon in Two Small Streams with Different Bedrock Geology
Radiocarbon natural abundances (Δ 14 C) are being increasingly used to trace carbon cycling in stream ecosystems. To understand the ultimate sources of carbon, we determined the stable carbon isotope ratios (δ 13 C) and Δ 14 C values of dissolved inorganic and organic carbon (DIC and DOC, respectively) and of particulate organic carbon (POC) in two small streams in central Japan, one of which flows over limestone bedrock (Seri) and the other does…
Effects of Vegetation Switch and Subsequent Change in Soil Invertebrate Composition on Soil Carbon Accumulation Patterns, Revealed by Radiocarbon Concentrations
Vegetation types strongly affect soil organic carbon (SOC) accumulation in the terrestrial ecosystem through multiple factors such as litter quality and soil biodiversity. However, the roles of soil fauna in SOC accumulation remain unclear. The objectives of this study were to (1) examine how changes in litter types and soil animal communities affect SOC accumulation in continuously forested or vegetation-switched forest areas; and (2) discuss th…
Reconstruction of Ancient Trade Routes in the Japanese Archipelago Using Carbon and Nitrogen Stable Isotope Analysis
Sources of Dissolved Inorganic Carbon in Two Small Streams with Different Bedrock Geology
Radiocarbon natural abundances (Δ 14 C) are being increasingly used to trace carbon cycling in stream ecosystems. To understand the ultimate sources of carbon, we determined the stable carbon isotope ratios (δ 13 C) and Δ 14 C values of dissolved inorganic and organic carbon (DIC and DOC, respectively) and of particulate organic carbon (POC) in two small streams in central Japan, one of which flows over limestone bedrock (Seri) and the other does…
Collagen turnover and isotopic records in cortical bone
Bone collagen of modern and ancient animals is a useful tissue for isotope analyses because it is stable over time. However, uncertainty regarding metabolic turnover processes of bone collagen can make isotope analysis difficult to correlate with relevant life history information. We used radiocarbon (14C) dating to examine turnover within cortical bone and to investigate retrospective isotope ratios along the growth direction of mid-shaft femurs…
Paleovegetation dynamics in an alternative stable states landscape in the montane Western Ghats, India
Peat deposits (>50 ka) in the montane Nilgiris (Western Ghats, India), have been central to the reconstruction of late Quaternary paleoclimate using paleovegetation changes in the forest-grassland vegetation mosaic that coexist here. However, it is well-known that short-term disturbances can also cause vegetation switches when multiple stable vegetation states exist. We studied paleovegetation changes within the alternative stable states framewor…
Regional estimation by oxygen isotope ratio analysis using tooth enamel of Japanese individuals
In the field of forensic sciences, human teeth are used to identify individuals in cases involving unidentified bodies. In recent years, isotope analysis of tooth enamel has been increasingly employed to estimate birth year and place of birth. The enamel is formed between the prenatal period and childhood, and after the tooth crown is complete, it does not undergo additional growth. Therefore, the oxygen isotope composition of the enamel bioapati…
Ecology (4 works) · Geology (4 works) · Isotope Analysis in Ecology (4 works) · Radiocarbon dating (4 works) · Biology (3 works) · Geochemistry (3 works) · Geology and Paleoclimatology Research (3 works) · Paleontology (3 works) · Archaeology (2 works) · Archaeology and ancient environmental studies (2 works)