Carbon and Nitrogen Isotopes
Biological soil crusts as modern analogs for the Archean continental biosphere: insights from carbon and nitrogen isotopes.
... Lalonde, Ferran Garcia-Pichel To cite this version: Christophe Thomazo, Estelle Couradeau, Anna Giraldo-Silva, Johanna Marin-Carbonne, Arnaud Bra- yard, et al.. Biological soil crusts as modern analogs for the Archean ...
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Tissue-diet discrimination factors and turnover of stable carbon and nitrogen isotopes in white-footed mice (Peromyscus leucopus)
... for carbon in the liver, muscle, and whole blood tissue, as well as the tissue–diet discrimination values for carbon and nitrogen isotopes in the liver, whole blood, muscle, and hair, of the ...
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Using Stable Carbon and Nitrogen Isotopes to Evaluate Parrotfish Diet
... dietary carbon sources than the other two species suggesting that ...consumer. Nitrogen enrichment in ...Stable nitrogen values of muscle suggest that ...pattern, carbon intake, possible ...
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Biochemical and physiological bases for the use of carbon and nitrogen isotopes in environmental and ecological studies
... Terrestrial: 15 Δ= 13 Δ ¼ 1:61 0:41 ð15Þ Marine : 15 Δ= 13 Δ ¼ 1 : 24 0 : 24 ð 16 Þ Such empirical relationships may be explained from a kinetic perspective. The 15 Δ/ 13 Δ ratio will be constant if the limiting steps in ...
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Plankton Trophic Structure Within Lake Michigan as Revealed By Stable Carbon and Nitrogen Isotopes
... the nitrogen and carbon stable isotopes during trophic transfers (Peterson & Fry ...the nitrogen stable isotope is fractionated ...the carbon stable isotope is generally ...
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Ocean carbon and nitrogen isotopes in CSIRO Mk3L COAL version 1 0: a tool for palaeoceanographic research
... The isotopes of carbon (δ 13 C) and nitrogen (δ 15 N) are commonly used proxies for understanding the ...the Carbon of the Ocean, Atmosphere and Land (COAL) biogeochemi- cal ...
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Evaluating larval mosquito resource partitioning in western Kenya using stable isotopes of carbon and nitrogen
... that carbon and nitrogen isotopes are assim- ilated into the larval body and contribute to the larval body mass whereas gut content analysis does not neces- sarily indicate ...
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Altitudinal gradients of natural abundance of stable isotopes of nitrogen and carbon in the needles and soil of a pine forest in Nepal
... In this study, we report trends in leaf and soil δ 13 C and δ 15 N of pine forests that occur across a broad altitudinal range. The objectives of this study were to examine the responses of single species that exhibit a ...
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Species-specific trajectories of nitrogen isotopes in Indiana hardwood forests, USA
... The heartwood-sapwood boundary was determined visually on all but one increment core. An age was assigned to each ring after cross-dating. Each core was weighed and di- vided into 30 mg segments along ring boundaries, ...
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Carbon and Nitrogen stable isotopes as biomarkers for food traceability
... Stable isotope analysis (S.I.A.) by isotope ratio mass spectrometry (I.R.M.S.) is a key tool for alimentary traceability thanks to its potential for the reconstruction of animal diets using the isotopic values of meat ...
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Understanding trophic interactions in host parasite associations using stable isotopes of carbon and nitrogen
... be attributed to their life span and behavior in the sec- ond intermediate host. In contrast to fast growing acan- thocephalans larval nematodes can live in the host for many months over different seasons before being ...
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Long-term carbon and nitrogen dynamics at SPRUCE revealed through stable isotopes in peat profiles
... In addition to the continuous variables of elemental concen- tration, isotopic signatures, and depth, nominal variables in- cluded plot location, topography (hummock versus hollow), and vegetation (near trees or not). We ...
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Long-term carbon and nitrogen dynamics at SPRUCE revealed through stable isotopes in peat profiles
... In addition to the continuous variables of elemental concen- tration, isotopic signatures, and depth, nominal variables in- cluded plot location, topography (hummock versus hollow), and vegetation (near trees or not). We ...
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Using Stable Isotopes of Carbon and Nitrogen to Mark Wild Populations of Anopheles and Aedes Mosquitoes in South-Eastern Tanzania.
... stable isotopes of carbon and nitrogen) then assessing the movement of mosqui- toes beyond the targeted sites and how such movements attenuate efficacy of the candidate vec- tor control ...stable ...
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Intra-annual variability of carbon and nitrogen stable isotopes in suspended organic matter in waters of the western continental shelf of India
... The results reveal significant shifts in isotopic signatures, es- pecially δ 15 N, of SPOM before and after the onset of SW monsoon. Very low δ 15 N values, reaching a minimum of − 4.17 ‰, are found during the ...
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Environmental stress and eutrophication in freshwater wetlands: evidence from carbon and nitrogen stable isotopes in cattail (Typha domingensis Pers.)
... The cattail δ 15 N may be controlled by various factors in- cluding the sources of N with different δ 15 N values, the concentration of DIN, and the growth rate which is af- fected greatly by P availability, plant ...
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Isotopes of nitrogen on Mars: Atmospheric measurements by Curiosity's mass spectrometer
... of nitrogen to space suggest that exchange with surface/interior reservoirs is needed to buffer the nitrogen against excessive frac- tionation due to escape [Jakosky et ...atmospheric nitrogen over ...
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Using carbon isotopes to fight the rise in fraudulent whisky
... MATERIALS AND METHODS Small whisky samples of known distillation year, mainly from archives, were provided by a range of companies. These came from distilleries throughout Scotland; from the Western Isles and Orkney ...
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Species-specific imprint of the phytoplankton assemblage on carbon isotopes and the carbon cycle in Lake Kinneret, Israel
... The POM of Lake Kinneret is dominated by live phyto- plankton and by detritus of phytoplankton origin (Parparov et al. 2014); hence, in this study, POM was taken as a proxy for phytoplankton. In Peridinium years during ...
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Coupled nitrate nitrogen and oxygen isotopes and organic matter remineralization in the Southern and Pacific Oceans
... ] increase. Using an isotopic mass balance, these data indicate that the ‘‘added’’ nitrate has a 15 N of þ9.0% and a 18 O of 1.1%. This result is remarkably consistent with a previous estimate for the 18 O of newly ...
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