Results 21 to 30 of about 130,756 (301)

The Preparation of Carbon and Nitrogen Stable Isotopes Reference Materials Using Sediments from the Bohai and East China Seas

Yankuang ceshi, 2017
The stable isotope of carbon and nitrogen (δ13C and δ15N) in marine sediments have received much attention as they can be used to trace the sources of organic matter and are helpful in understanding the carbon cycle, climate change and the transformation
QIN De-di, HE Xing-liang, ZHANG Yuan-yuan, LI Feng, CHEN Yu-feng, ZHANG Pei-yu   +5 more
doaj   +1 more source

Stable isotope analysis provides new information on winter habitat use of declining avian migrants that is relevant to their conservation [PDF]

, 2012
Winter habitat use and the magnitude of migratory connectivity are important parameters when assessing drivers of the marked declines in avian migrants. Such information is unavailable for most species.
BJM Stutchbury, BN Smith, C Eraud, C Fry, CM Perrins, CP Chamberlain, D Lack, D Norman, DI Pearson, DJ Pain, DS Wilcove, E Yohannes, FJ Sanderson, G Gory, GD Farquhar, GJ Morel, I Burfield, I Newton, JA Grey, Jason Newton, JC Sealy, JC Vogel, JF Kelly, JM Neto, John W. Mallord, JR Ehleringer, K Risely, KA Hobson, Karl L. Evans, KL Evans, L Jenni, L Svensson, L Zwarts, LA Hill, M Cardillo, M Schaub, MB Hernquist, MJA Werger, MS Webster, N Cooper, N Saino, Ofer Ovadia, P Chantler, P Marra, RA Robinson, RF Inger, RP Ellis, S Bearhop, S Bensch, S Oppel, S Shultz, SD Newsome, SH Ambrose, Shai Markman, T Szép, T Szép, TB Coplen, TB Oatley, TS Reichlin, WJ Peach   +59 more
core   +4 more sources

Stable carbon isotopes of wood: a clue to palaeoclimate? [PDF]

Palaeogeography, Palaeoclimatology, Palaeoecology, 2002
Abstract Detailed stable carbon isotope and molecular investigations were undertaken on a number of archaeological and fossil wood specimens to provide insights into their use as rigorous independent palaeoclimatic and palaeoenvironmental parameters.
Bergen, P.F. van, Poole, I.J.
openaire   +3 more sources

Effects of spoilage on nitrogen and carbon stable isotopes signatures of the clam Ruditapes decussatus [PDF]

, 2018
Fish and seafood products are highly susceptible to post-mortem spoilage due to autolytic reactions at start, then microbiological activity and eventually oxidative reactions.
A Lucas, AOAC, B Peres, BJ Petersen, BJ Petersen, C Alasalvar, DL Philips, DMAM Luykx, E Orban, EJ Conway, J Aníbal, J Aníbal, J Hoefs, K Hondula, MF Lehmann, R Machás, R Michener, R Venkataraman, REM Hedges, S Ghidini, SA Macko, SA Mohite, SB Kosiba, TB Coplen   +23 more
core   +1 more source

Seasonal changes in the δ13C and δ15N signatures of the Lago Maggiore pelagic food web

Journal of Limnology, 2011
Seasonal variation in the relative contributions of littoral and pelagic food sources to the diets of open-water zooplankton and subsequent changes in their trophic positions were investigated with carbon and nitrogen Stable Isotope Analysis (SIA).
Marina MANCA, Anna VISCONTI
doaj   +1 more source

Nutrients cause consolidation of soil carbon flux to small proportion of bacterial community

Nature Communications, 2021
The fate of soil carbon depends on microbial processes, but whether different microbial taxa have individualistic effects on carbon fluxes is unknown.
Bram W. Stone, Junhui Li, Benjamin J. Koch, Steven J. Blazewicz, Paul Dijkstra, Michaela Hayer, Kirsten S. Hofmockel, Xiao-Jun Allen Liu, Rebecca L. Mau, Ember M. Morrissey, Jennifer Pett-Ridge, Egbert Schwartz, Bruce A. Hungate   +12 more
doaj   +1 more source

Dual stable isotope abundances unravel trophic position of estuarine nematodes [PDF]

, 2005
The role and quantitative importance of free-living nematodes in marine and estuarine soft sediments remain enigmatic for lack of empirical evidence on the feeding habits and trophic position of most nematode species.
BOUILLON, S, GALLUCCI, F, Moens, Tom
core   +1 more source

Effect of dietary stable isotopic ratios of carbon and nitrogen on the extent of their incorporation into tissues of rats

Journal of Animal Science and Biotechnology, 2012
This study was conducted to investigate the effect of different dietary ratios of 13 C to 12 C or 15 N to 14 N on their relative incorporation into tissues.
Lv Wentao, Ju Tingting, Dong Bing, Yu Boyang, Yin Jingdong   +4 more
doaj   +1 more source

Effects of Upwelling Intensity on Nitrogen and Carbon Fluxes through the Planktonic Food Web off A Coruña (Galicia, NW Spain) assessed with Stable Isotopes

Diversity, 2020
The input of new nutrients by upwelling in shelf waters, and the associated carbon and nitrogen fluxes, can be traced by their stable isotope signatures in organic matter.
Antonio Bode, Angel F. Lamas, Carmen Mompeán   +2 more
doaj   +1 more source

Tracing the source of soil organic matter eroded from temperate forest catchments using carbon and nitrogen isotopes [PDF]

, 2016
Soil erosion continuously redistributes soil and associated soil organic matter (SOM) on the Earth's surface, with important implications for biogeochemical cycling of essential elements and terrestrial carbon sequestration.
Berhe, AA, Fogel, ML, Hart, SC, Hunsaker, CT, Johnson, DW, McCorkle, EP, McFarlane, KJ   +6 more
core   +1 more source