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8 results for “d15N”
Chloroform-extractableN and d15N within 15N addition plots for Aug 2003
Pool size and d15N values for chloroform-extractable N, extractable-N, and non-extractable N pools. Samples collected in Aug. 2003 from 1st Organic Layer of 15N addition plots in Imnavait watershed. 1st Organic Layer = the upper 10 cm of organic soil or, if the organic layer was < 10 cm thick, the entire layer (e.g., there was never > 4 cm of organic soil at Crest).
Fungal colonization of fine roots and foliar %N, %C, d15N, d13C, and gas exchange of seedlings outplanted at Finger Mountain and the Anaktuvuk River Fire.
This dataset contains proportion of fine root length colonized by root-associated fungi, foliar %N, %C, d15N, d13C, and maximum photosynthesis, respiration, LAI, and CUE for Picea mariana, Picea glauca, Alnus viridis, and Betula neo-alaskana seedlings inoculated with root-associated fungal communities and outplanted at Finger Mountain and the Anaktuvuk River Fire burn scars.
Feather nitrogen and carbon stable isotope (d15N and d13C) values for Golden-crowned Sparrows
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d13C and d15N of Pacific halibut skeletal muscle tissue from the Gulf of Alaska, 2018
<p>In 2018, white muscle samples were collected from the lateral musculature of a random sample of up to 4 fish from each survey station of the International Pacific Halibut Commission's Fishery Independent Setline Survey (total n = 1653). Muscle samples were stored at -20°C, thawed, oven-dried to a constant mass at 42°C, and ground to a fine powder. Approximately 0.5 to 1.0 mg of each powdered sample was loaded into a tin capsule for stable isotope analysis. d<sup>13</sup>C and d<sup>15</sup>N values were determined using a Carlo Erba 1110 Elemental Analyzer (Carlo Erba Reagents, CE Instruments, ThermoQuest Italia S.p.A. Milan, Italy) coupled to a Thermo Delta Plus XP IRMS (Thermo Finnigan, Bremen, German) at the University of Wyoming's Stable Isotope Facility (Laramie, Wyoming, USA). Long-term analyses of quality control standards have yielded precisions of 0.3‰ for d<sup>13</sup>C and 0.4‰ for d<sup>15</sup>N. Stable isotope data are presented in ‰ relative to Pee Dee Belemnite for <sup>13</sup>C and atmospheric nitrogen for <sup>15</sup>N.</p>
Mont Blanc ice core d15N(NO3-) values
<p>All d15N(NO3-) measurements are gathered along the CDD16 ice core. As noted in previous publications, there are gaps in the age chronology. Consequently, some measurement values are not associated with an age. </p> <p>For the bottommost measurements, because the density profile is less consistent due to ice debris, only the concentrations (in red) are reported, instead of NO3- quantity.</p>
14C, d13C and d15N for bones from the Femern project
<p>This file contains basic information (species, 14C age, d13C and d15N) for animal bones analysed in the Femern project, as well as average d13C values for wood samples.</p> <p>This is supplementary data for Philippsen, B. (2023) Changing diet in a changing world. In: Groß, D. and Rothstein, M. (eds) Changing Identities in a Changing World.</p>
d13C and d15N of Pacific halibut skeletal muscle tissue from the Gulf of Alaska, 2018
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Planktonic foraminifera-bound d15N data for "Ocean iron fertilization by sea-level enhanced mid-ocean ridge volcanism "
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