Nitrogen Isotope
The interaction between nitrogen and phosphorous is a strong predictor of intra-plant variation in nitrogen isotope composition in a desert species
... (nitrogen isotope composition) and explanatory variables across plant organs, and we are not interested in how any peculiarities of nebkas and locations might or might not affect the specific ...
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Variation in the stable carbon and nitrogen isotope composition of plants and soil along a precipitation gradient in northern China.
... The observed mean leaf nitrogen isotope values are comparable to the published data set collected from the Loess Plateau of China [33] and Mount Kinabalu, Borneo [34]. The range of variation in leaf d 15 N ...
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The Traceability of Animal Meals in Layer Diets as Detected by Stable Carbon and Nitrogen Isotope Analyses of Eggs
... Denadai JC, Ducatti C, Caldara FR, Oliveira RP, Silva ET. Certificação de ovos de poedeiras comerciais pela técnica dos isótopos estáveis. Anais do 3º Congresso De Produção e Consumo de Ovos; 2005 mar 16-17; Indaiatuba, ...
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Carbon and nitrogen isotope variations in the water column of Lake Bled (NW Slovenia)
... through knowledge of robust and clearly defined source end-points and of the direc- tion and magnitude of isotope alteration during microbial or phytoplankton mediated processes. Variations in 13 C in ...
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Nitrogen isotope dynamics and fractionation during sedimentary denitrification in Boknis Eck, Baltic Sea
... tively low reactivity, but also for coastal sites that receive significant amount of organic matter, which can fuel denitrification. Concomitant analysis of nitrate isotope values in bottom water showed that ...
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Trophic ecology of Arapaima in Guyana: giant omnivores in Neotropical floodplains
... stable nitrogen and carbon isotope signatures, we investigated the trophic ecology and identified potential prey fish groups supporting the giant Arapaima within floodplain lakes of the Essequibo River ...
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Carbon and Nitrogen Stable Isotope Values for Plants and Mammals in a Semi-Desert Region of Mongolia
... and nitrogen isotope values of several mammal and plant species from a semi-desert steppe region of Dornogobi aimag (province), Mongolia, and compare them to the values reported by other SIA research ...
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Nitrogen isotopes in bulk marine sediment: linking seafloor observations with subseafloor records
... of nitrogen offer a unique per- spective on changes in the nitrogen cycle, past and ...of nitrogen in ma- rine sediments can complicate the interpretation of bulk nitrogen isotope ...of ...
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Connectivity between tropical coastal habitats:using stable isotopes in juvenile penaeid shrimps and potential food sources
... the nitrogen isotope turnover rate according to size (but little is known about such physiological changes) and not an ontogenetic shift on diet (Cocheret de la Morinière et ...the isotope allocation ...
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Variability in the trophic position of larval fishes in the upper Paraná floodplain based on δ
... The upper Paraná River floodplain features a fauna that is highly adapted to the marked seasonal changes in biotic and abiotic factors imposed by the flood condi- tions. This environment presents abundant food and is ...
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Aquatic food webs in mangrove and seagrass habitats of Centla Wetland, a Biosphere Reserve in Southeastern Mexico
... stable isotope ratios of carbon and ...and nitrogen isotope ratios of basal sources and aquatic consumers indicated that the species-rich food webs of both habitats are dependent on riparian ...
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Deletion of Genes Encoding Arginase Improves Use of "Heavy" Isotope-Labeled Arginine for Mass Spectrometry in Fission Yeast.
... the nitrogen source of their SILAC media, replacing sodium glutamate as sole nitrogen source with a combination of sodium glutamate and (unlabeled) ammonium chloride, under the presumption that this ...
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J. Braz. Chem. Soc. vol.21 número4
... point-by-point isotope ratio needs to be computed, eventually corrected and calculated using a modiied ID ...the isotope ratios was affected by the limited data point measurements along the FI ...
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Potential Environmental and Health Impacts of High Land Application of Cheese Whey
... Since nitrogen in cheese whey is water soluble and as such is subject to biological transformations, maximum whey application rates should be based on nitrogen loading that: (a) will be most effectively ...
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Nitrogen efficiency indexes for evaluating nitrogen uptake and use in ornamental bromeliad’s root system and tank
... and BCE indexes. This result indicates that epiphytic plants can optimize a smaller amount of nitrogen supply in order to enhance biological processes. It should be noted that NUE indexes and their different ...
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SOIL AND PLANT NUTRITION - Article
... capacity of a given genotype in take advantage of the applied nitrogen (N) and transform it in biomass and grains. The objective of this study was to evaluate 12 wheat cultivars as to the NUE and its components. ...
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Stable isotopes in barnacles as a tool to understand green sea turtle (<i>Chelonia mydas</i>) regional movement patterns
... precision in the mass spectrometer, we obtained a complete set of results for barnacles from two of the four sea turtles sampled and only partial results from one other. We included nine barnacles from three turtles in ...
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Nitrate-Nitrogen Content in Soil and Lysimeter Water under Different Nitrogen Fertilization Levels in Crop Production
... erent nitrogen fertilization levels, whence quantities of phosphorus (P) and potassium (K) were constant for all treat- ments (120 kg P ha -1 and 180 kg K ha -1 ...
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Effect of sorghum tannins in sheep fed with high-concentrate diets
... Some sorghum cultivars contain high concentrations of tannins in the kernels. The presence of these molecules in animal diets is associated with certain negative effects, such as a decrease in dry matter (DM) intake, a ...
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δ13C chemostratigraphy of the Middle and Upper Ordovician succession in the Tartu-453 drillcore, southern Estonia, and the significance of the HICE
... C isotope data from the Tartu-453 core section in southern Estonia enabled creation of a continuous Ordovician carbon isotope record, ranging from the Floian to the end of the ...carbon isotope ...
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