Results 21 to 30 of about 128,824 (253)
Tracing water sources of terrestrial animal populations with stable isotopes: laboratory tests with crickets and spiders. [PDF]
PLoS ONE, 2010 Fluxes of carbon, nitrogen, and water between ecosystem components and organisms have great impacts across levels of biological organization. Although much progress has been made in tracing carbon and nitrogen, difficulty remains in tracing water sources
Kevin E McCluney, John L Sabo
doaj +1 more source
Assortative Mating By Diet In A Phenotypically Unimodal But Ecologically Variable Population Of Stickleback [PDF]
, 2008 Speciation with gene flow may be driven by a combination of positive assortative mating and disruptive selection, particularly if selection and assortative mating act on the same trait, eliminating recombination between ecotype and mating type ...
Bolnick, Daniel I., Snowberg, Lisa K.
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Data in Brief, 2023 A comprehensive hydrogeological report was conducted to determine the origin, occurrence and processes affecting nitrogen in a Mediterranean coastal aquifer-lagoon system.
A. Menció +4 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
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Applied Sciences, 2018 Nitrate pollution in surface water has become an environmental problem of global concern. The effective way for controlling the nitrate pollution of surface water is to identify the pollution source and reduce the input of nitrate.
Yan Zhang, Peng Shi, Jinxi Song, Qi Li
doaj +1 more source
Freezing and chemical preservatives alter the stable isotope values of carbon and nitrogen of the Asiatic clam (Corbicula fluminea) [PDF]
, 2011 We tested the impacts of most common sample preservation methods used for aquatic sample materials on the stable isotope ratios of carbon and nitrogen in clams, a typical baseline indicator organism for many aquatic food web studies utilising stable ...
Aurélia Martino +22 more
core +5 more sources
When maize is not the first choice: advances in paleodietary studies in the Archaeological Site Río Doncellas (Jujuy, Argentina) [PDF]
, 2016 In this work we present new values of stable isotopes of carbon (δ13Cco and δ13Cap) and nitrogen (δ15N) measured in a sample of 13 human individuals found in the Río Doncellas Archaeological Site (Late Period or Regional Developments, ca. 1000 AD-1450 AD)
Killian Galván, Violeta Anahí +2 more
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Biology, 2023 The purpose of this study is to gain insights into the subsistence activities and nutrition of the Samnite and Peligni populations who lived in the Abruzzo region (Italy) during the Iron Age. The samples under investigation are from Opi Val Fondillo (AQ)
Iuri Icaro +2 more
doaj +1 more source
NITROGEN ISOTOPIC FRACTIONATION IN INTERSTELLAR AMMONIA [PDF]
The Astrophysical Journal, 2010 4 pages, 2 figures, 1 ...
Lis, Darek C. +3 more
openaire +4 more sources
MESMO global model output for glacial simulations with dynamic C:N:P ratios [PDF]
, 2020 Dataset: MESMO glacial CNPModel outputs archived have a complete suite of biogeochemical state variables in the 3D global ocean domain. They include temperature, salinity, nutrients (PO4, NO3, Fe, Si), carbon pools and their isotopes (DIC, DOC, POC, 13C ...
Matsumoto, Katsumi
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