Stable Isotope Ecology (CER, Kyoto Univ.)

Human disturbance alters the foraging and spatiotemporal activity of a large carnivore - Oecologia Carnivore recovery is often promoted to restore ecosystem functioning. However, human-disturbed landscapes can alter the behavior and role of returning carnivores. To evaluate how different dimensions...

Barceló, G., Donadio, E., Alldredge, M.W. et al. Human disturbance alters the foraging and spatiotemporal activity of a large carnivore. #stableisotopes Oecologia 207, 112 (2025). doi.org/10.1007/s004...

Biological nitrogen fixation activity by co-occurring moss species is affected by their ability to absorb nitrogen from canopy throughfall - Oecologia Biological nitrogen fixation in feathermosses provides an important source of exogenous nitrogen to boreal forest ecosystems. Yet there is a limited understanding of how canopy condition and throughfa...

Blasi, C., Houle, D., Vacherand, G. et al. Biological nitrogen fixation activity by co-occurring moss species is affected by their ability to absorb nitrogen from canopy throughfall. #stableisotopes Oecologia 207, 119 (2025). doi.org/10.1007/s004...

Comparing greenhouse gas stable isotopes from different sampling methods: Aquifer groundwater and coal seam gas production waters Methane and carbon dioxide are ubiquitous in aquifers and are gaining increased attention through their role in global warming. The stable carbon and …

Comparing greenhouse gas stable isotopes from different sampling methods: Aquifer groundwater and coal seam gas production waters #stableisotopes www.sciencedirect.com/science/arti...

Assimilatory processes dominate diel inorganic nitrogen cycling in a shallow open-water constructed wetland Shallow, unit process open water (UPOW) constructed wetlands effectively remove a range of water contaminants. Yet, much remains to be learned about i…

Assimilatory processes dominate diel inorganic nitrogen cycling in a shallow open-water constructed wetland #stableisotopes www.sciencedirect.com/science/arti...

Gleaning of δ15N in ecosystems and its animal-organ isotope data: perspectives for the construction of the isotopically ordered world - Progress in Earth and Planetary Science To date, empirical relationships have been observed for the distributions and variations of stable nitrogen and carbon isotope ratios (δ15N and δ13C, respectively) in ecosystems as well as in living o...

Wada, E., Kudo, Y., Mizutani, H. et al. Gleaning of δ15N in ecosystems and its animal-organ isotope data: perspectives for the construction of the isotopically ordered world. #stableisotopes Prog Earth Planet Sci 12, 63 (2025). doi.org/10.1186/s406...

Ferrous wheel hypothesis II: Abiotic incorporation of mineral nitrogen into organic pools in volcanic soils of temperate forest ecosystems Understanding the pathways of nitrogen (N) retention in pristine forest soils is essential for effective ecosystem management and nutrient conservatio…

Ferrous wheel hypothesis II: Abiotic incorporation of mineral nitrogen into organic pools in volcanic soils of temperate forest ecosystems #stableisotopes www.sciencedirect.com/science/arti...

In Situ Metabolic Rates of Alkane‐Degrading Sulphate‐Reducing Bacteria in Hydrocarbon Seep Sediments Revealed by Combining CARD‐FISH, NanoSIMS, and Mathematical Modelling - Kleindienst - 2025 - Environmental Microbiology #stableisotopes enviromicro-journals.onlinelibrary.wiley.com/doi/full/10....

Enhanced Rock Weathering Altered Soil Organic Carbon Fluxes in a Plant Trial We investigated how applying basalt to agricultural soils influences CO2 emissions by affecting soil organic carbon decomposition. In a pot experiment with soil and plants, we found that basalt initi....

Enhanced Rock Weathering Altered Soil Organic Carbon Fluxes in a Plant Trial #stableisotopes doi.org/10.1111/gcb....

Sea Ice Freezing and Melting Modulate the Estuarine Sediment Nitrogen Removal Process Through Affecting the Microbiome #stableisotopes doi.org/10.1111/gcb....

Heterotrophic nitrification of organic nitrogen is stimulated by agricultural plants - Communications Earth & Environment Heterotrophic nitrification in soil is promoted by agricultural plants, while autotrophic nitrification is suppressed by it, highlighting the role of plant-soil interactions in advancing the understan...

Chen, S., Cai, Z., He, M. et al. Heterotrophic nitrification of organic nitrogen is stimulated by agricultural plants. Commun Earth Environ 6, 612 (2025). doi.org/10.1038/s432... #stableisotopes

Methodological Considerations for the Use of Acid‐Based Pre‐Treatment Protocols for Carbon and Oxygen Analysis of Tooth Enamel Rationale Chemical pre-treatment is a common methodological step aimed to remove exogenous materials introduced to archaeological tooth enamel in the burial environment through diagenetic processes....

Methodological Considerations for the Use of Acid‐Based Pre‐Treatment Protocols for Carbon and Oxygen Analysis of Tooth Enamel - Varkulevičiūtė - 2025 - Rapid Communications in Mass Spectrometry #stableisotopes analyticalsciencejournals.onlinelibrary.wiley.com/doi/full/10....

Oxygen Isotope Analysis for Silicate Minerals Using a High‐Temperature Conversion/Elemental Analyzer‐Isotope Ratio Mass Spectrometer Rationale Oxygen isotope composition of silicates is an important indicator of the formation environment and/or subsequent geochemical processes of minerals. Compared to carbonate minerals and organ.....

Oxygen Isotope Analysis for Silicate Minerals Using a High‐Temperature Conversion/Elemental Analyzer‐Isotope Ratio Mass Spectrometer - Kikuchi - 2025 - Rapid Communications in Mass Spectrometry #stableisotopes analyticalsciencejournals.onlinelibrary.wiley.com/doi/abs/10.1...

Nitrogen and carbon isotopic relationships in the diet and eye lenses of chub mackerel revealed in a laboratory rearing experiment - Progress in Earth and Planetary Science The N and C isotopic compositions (δ15N and δ13C) of phytoplankton vary due to biogeochemical processes. The δ15N and δ13C values of fish tissue are inherited from the phytoplankton in the regions whe...

Yoshikawa, C., Ogawa, N.O., Ishikawa, N.F. et al. Nitrogen and carbon isotopic relationships in the diet and eye lenses of chub mackerel revealed in a laboratory rearing experiment. #stableisotopes Prog Earth Planet Sci 12, 57 (2025). doi.org/10.1186/s406...

Nonlinear pattern of indirect N2O emission factor with increasing nitrate in urban rivers: driven by microbial and algal-mediated N transformations Urban rivers are critical sources of nitrous oxide (N2O) emissions, necessitating the use of distinct indirect emission factor (EF5r) values in N2O em…

Nonlinear pattern of indirect N2O emission factor with increasing nitrate in urban rivers: driven by microbial and algal-mediated N transformations #stableisotopes www.sciencedirect.com/science/arti...

Organic geochemical evidence links changes in marine microbes and phytoplankton to ammonite turnover in the Tethyan Middle Jurassic Carbon isotope-based chemostratigraphy is a well-established method for regional or even global correlations, especially at major stratigraphic bounda…

Organic geochemical evidence links changes in marine microbes and phytoplankton to ammonite turnover in the Tethyan Middle Jurassic #stableisotopes www.sciencedirect.com/science/arti...

Isotopic evidence for dew uptake by land snails from Bayesian modeling of body water δD and δ18O Land snail shells serve as valuable paleoclimate archives, with their isotopic compositions recording past changes in regional ecology and hydrology. …

Isotopic evidence for dew uptake by land snails from Bayesian modeling of body water δD and δ18O #stableisotopes www.sciencedirect.com/science/arti...

The impact of burial diagenesis on soil-formed minerals in paleosols using stable isotopes of phyllosilicates and carbonate clumped isotopes To understand the effects of burial diagenesis on the stable isotope geochemistry of soil-formed clay and carbonate minerals in paleosols, samples wer…

The impact of burial diagenesis on soil-formed minerals in paleosols using stable isotopes of phyllosilicates and carbonate clumped isotopes #stableisotopes www.sciencedirect.com/science/arti...

Taphonomic Trajectory of Diagenesis: How Site Formation Should Inform Biological Sampling Strategies for Isotopic Studies of Ancestors Objectives Stable isotope analyses of archaeological bone have become an increasingly common research avenue for interpreting past human behavior. To ensure reliable isotope data is used for interpr.....

Taphonomic Trajectory of Diagenesis: How Site Formation Should Inform Biological Sampling Strategies for Isotopic Studies of Ancestors - Beasley - 2025 - American Journal of Biological Anthropology #stableisotopes onlinelibrary.wiley.com/doi/full/10....

Understanding organic carbon dynamics in a river catchment through improved sediment fingerprinting Agricultural practices accelerate the rates of soil erosion and organic carbon (OC) loss, increasing the input of nutrient rich sediment to surface wa…

Understanding organic carbon dynamics in a river catchment through improved sediment fingerprinting #stableisotopes www.sciencedirect.com/science/arti...

Palaeosol structures and isotopic records of sulfates and carbonate horizons in Neogene Poznań clays of the Polish Lowlands, western Poland #stableisotopes www.sciencedirect.com/science/arti...

Interpreting differences in microbial carbon and nitrogen use efficiencies estimated by isotope methods and the ecoenzyme stoichiometry model Isotope methods and ecoenzyme stoichiometry are the most commonly used approaches to estimate carbon and nitrogen use efficiencies (CUE and NUE) of mi…

Interpreting differences in microbial carbon and nitrogen use efficiencies estimated by isotope methods and the ecoenzyme stoichiometry model #stableisotopes www.sciencedirect.com/science/arti...

Pore scale microbial biogeography across different soil types Microbial activity in soils is influenced by the structural heterogeneity of the pore network, which governs the distribution of microbial communities…

Pore scale microbial biogeography across different soil types www.sciencedirect.com/science/arti... #stableisotopes

Microbial metabolisms determine soil priming effect induced by organic inputs Soil microorganisms are essential in determining soil organic carbon (C) decomposition via the priming effect. However, the understanding of microbial…

Microbial metabolisms determine soil priming effect induced by organic inputs #stableisotopes www.sciencedirect.com/science/arti...

Nitrate reduction across soils transitioning from coastal forest to wetland are hotspots for denitrification Sea level rise drives spatial migration of coastal ecosystems and can lead to the accelerated replacement of coastal forests with tidal wetlands. Duri…

Nitrate reduction across soils transitioning from coastal forest to wetland are hotspots for denitrification #stableisotopes www.sciencedirect.com/science/arti...

Back to the roots: Characterizing root exudates of dominant tundra plants to improve the understanding of plant-soil interactions in a changing arctic Global warming increases the vegetation cover and leads to shifts in vegetation types in the Arctic. An increase in the vegetation cover might substan…

Back to the roots: Characterizing root exudates of dominant tundra plants to improve the understanding of plant-soil interactions in a changing arctic #stableisotopes www.sciencedirect.com/science/arti...

Genetic lineages and ecological gradients co-determine the trophic niches of earthworms Trophic niche partitioning is a fundamental mechanism explaining species co-existence and diversity. Trophic niches vary with elevational gradients, b…

Genetic lineages and ecological gradients co-determine the trophic niches of earthworms #stableisotopes www.sciencedirect.com/science/arti...

Carbon pathways in soil: unraveled by 13C natural abundance Soil organic matter (SOM) escapes microbial and enzymatic decomposition by stabilizing on clays and iron- and aluminum (oxyhydro)oxides, or by being t…

Carbon pathways in soil: unraveled by 13C natural abundance #stableisotopes www.sciencedirect.com/science/arti...

Evidence of local adaptation to aridity but not nitrogen deposition in invasive annuals Rapid adaptation of traits and trait plasticity may contribute to plant invasiveness and confer fitness advantages in novel environments resulting from global change. The importance of trait differen....

Evidence of local adaptation to aridity but not nitrogen deposition in invasive annuals - Valliere - 2025 - Ecology #stableisotopes esajournals.onlinelibrary.wiley.com/doi/full/10....

Blood Collection Tube has Minimal Interference on the Carbon and Nitrogen Isotope Composition of Plasma, Red Blood Cells, and Serum in Cow Blood Rationale Stable isotopes can be useful for tracking diet composition and other physiological processes in ruminants. These techniques rely on the fact that tissues directly reflect the animal's die...

Blood Collection Tube has Minimal Interference on the Carbon and Nitrogen Isotope Composition of Plasma, Red Blood Cells, and Serum in Cow Blood - Jaramillo - 2025 - Rapid Communications in Mass Spectrometry #stableisotopes analyticalsciencejournals.onlinelibrary.wiley.com/doi/abs/10.1...

Acid Fractionation Factor of Oxygen Isotopes in Mixed Calcite–Dolomite Samples: Implications for Data Correction Rationale The conventional method for measuring carbon and oxygen isotopes in carbonates involves the reaction of carbonate minerals with phosphoric acid (PPA) to generate CO2, followed by purificat...

Acid Fractionation Factor of Oxygen Isotopes in Mixed Calcite–Dolomite Samples: Implications for Data Correction - Cui - 2025 - Rapid Communications in Mass Spectrometry #stableisotopes analyticalsciencejournals.onlinelibrary.wiley.com/doi/abs/10.1...