Stable isotope ratios
The use of nitrogen stable isotope ratios to discriminate between organic and conventional olive cultivation
... systems (Kohl et al., 1973; Freyer and Aly, 1974; Shearer et al., 1974; Kreitler, 1979; Yoneyama et al., 1990; Rapisarda et al., 2010; Camin et al., 2011; Russo et al., 2012). In the last ten years, considering the ...
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Carbon and nitrogen stable isotope ratios can estimate anionic polyacrylamide degradation in soil
... The stable isotope ratios of light elements ...on isotope ratio mass spectrometers with fixed magnets and Faraday cups positioned to detect a small number of masses ( Kreuzer-Martin, ...of ...
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Assigning stranded bottlenose dolphins to source stocks using stable isotope ratios following the Deepwater Horizon oil spill
... Overall, stable isotope ratios have proven useful to differentiate groups of dolphins at relatively fine scales among seasons and sites, even at some sites within the same estuaries (Worthy et ...
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Multi decadal and ontogenetic trophic shifts inferred from stable isotope ratios of pinniped teeth
... A sample of 44 archived grey seal canine teeth (held at the Sea Mammal Research Unit (SMRU), Univ. of St. Andrews) was randomly selected from adults legally culled in 1972 (n 5) and 1981 (n 39) at the Farne Islands ...
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Continuous, near real time observations of water stable isotope ratios during rainfall and throughfall events
... for isotope stud- ies in catchment hydrology, where recharge areas are often forested, while reference meteorological stations are gener- ally in the ...obtaining isotope readings every 2 ...the ...
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Laser-based measurements of <sup>18</sup>O/<sup>16</sup>O stable isotope ratios (δ<sup>18</sup>O) in wine samples
... whose isotope ratios need to be ...The isotope ratio of wine #1 was determined from the coefficients and compared to its IRMS value to provide a measurement error for wine ...
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Spatio-temporal variation of stable isotope ratios in earthworms under grassland and maize cropping systems
... the isotope composi- ...and stable isotopes at natural levels can assist in examining the extent of human effects on eco- system structure and function ...
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Stable isotopes and dynamic diets : the Mesolithic-Neolithic dietary transition in terrestrial Central Europe
... human stable isotope data can be modelled, using stable isotopic ratio averages from possible food sources and the expected isotope enrichments from the food chain and metabolism, to determine ...
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Abiotic Influences on Free-Living Microbial Communities in Hydrothermal Vent Ecosystems
... carbon stable isotope ratios and assessed microbial community composition and functional gene abundances in three hydrothermal vent chimney structures from Middle Valley on the Juan de Fuca ...
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Stable isotope evidence for the saprotropic status of the truffle Schenella pityophilus
... Germany). Stable isotope ratios and percent N and C were determined on the IsoPrime100 stable isotope ratio mass spectrometer (Isoprime ...University. Stable isotope ...
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An assessment of latest Cretaceous Pycnodonte vesicularis (Lamarck, 1806) shells as records for palaeoseasonality: a multi-proxy investigation
... Detailed analysis of shell structure and preservation shows that shells of P. vesicularis, like other species of the Or- der Ostreoida, are characterized by two major micromor- phologies of calcite, which were referred ...
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Depth segregation and diet disparity revealed by stable isotope analyses in sympatric herbivorous cichlids in Lake Tanganyika
... The stable isotope ratio of nitrogen (N) is useful in trophic level analysis as the nitrogen pools of animals have δ 15 N signatures regularly enriched by a certain value (typically, ...[28]. Stable ...
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Divergence of feeding channels within the soil food web determined by ecosystem type
... use stable isotope analysis to establish the pathway of C and N through each trophic level within the ...ecosystems. Stable isotope ratios of C and N from all invertebrates were used as ...
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The influence of the synoptic regime on stable water isotopes in precipitation at Dome C, East Antarctica
... the stable water isotope ratio changes during evaporation and condensation processes (Dansgaard, 1964), it is important to know as much as possible about the history of the pre- cipitation observed at an ...
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Evaluating larval mosquito resource partitioning in western Kenya using stable isotopes of carbon and nitrogen
... occurring stable isotopes to examine inter- and intra-specific resource partitioning among larval ...nitrogen stable isotope ratios of larvae sharing the same habitats in western ...that ...
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The use of stable isotope measurements for monitoring and verification of CO2 storage
... Stable isotope ratios of carbon and oxygen expressed as G13C and G18O values can be easily determined for injected CO2 and carbon compounds in reservoir fluids and gases by a suitable ge[r] ...
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“Alas poor Yorick”: What retrospective analysis of canine skulls can tell us about the impact of environmental factors on health
... The dog (C. familiaris) presents an excellent model system with which to analyze this concept in detail. This has been made possible by the availability of ca. 300 Portuguese Water dogs (PW dogs) that have been necro- ...
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Stable isotope analyses of bat fur: Applications for investigating North American bat migration
... distance, stable isotope results suggest that some latitudinal migrants make continental scale flights that can exceed 2000 km and span much of North America (Cryan et ...
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Intrinsic and extrinsic forcing in life histories: patterns of growth and stable isotopes in male Antarctic fur seal teeth
... both stable isotope time series could be attributed to shifts in diet of fur seals if fur seals are feed- ing more exclusively on krill swarms than in previous ...
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Unravelling collembolan life belowground: Stoichiometry, metabolism and release of carbon and nitrogen
... the isotope addition ...estimate isotope discrimination by collembolans in studies where their diet is composed of multiple sources, and as a supplement to compound specific ...add stable isotopes ...
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