Results 21 to 30 of about 27,351 (240)
Do oxygen isotope values in collagen reflect the ecology and physiology of neotropical mammals?
Frontiers in Ecology and Evolution, 2015 Stable isotope data provide insight into the foraging ecology of animals. Traditionally, carbon and nitrogen isotope values have been used to infer dietary and habitat preferences.
Brooke eCrowley +5 more
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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
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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
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
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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
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Seabird Modulations of Isotopic Nitrogen on Islands
PLoS ONE, 2012 The transport of nutrients by migratory animals across ecosystem boundaries can significantly enrich recipient food webs, thereby shaping the ecosystems' structure and function. To illustrate the potential role of islands in enabling the transfer of matter across ecosystem boundaries to be gauged, we investigated the influence of seabirds on nitrogen ...
Caut, Stéphane +9 more
openaire +10 more sources
Nitrogen isotope variations in the Solar System [PDF]
Nature Geoscience, 2015 The solar wind, cometary ices, and inner Solar System bodies exhibit distinct nitrogen isotopic compositions. A synthesis of these analyses suggests that these distinct reservoirs may be the result of early fractionation processes.
Füri, Evelyn, Marty, Bernard
openaire +2 more sources
Frontiers in Plant Science, 2022 Modifying farming practices combined with breeding has the potential to improve water and nutrient use efficiency by regulating root growth, but achieving this goal requires phenotyping the roots, including their architecture and ability to take up water
Yang Gao +6 more
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NITROGEN ISOTOPIC FRACTIONATION IN INTERSTELLAR AMMONIA [PDF]
The Astrophysical Journal, 2010 Using the Green Bank Telescope (GBT), we have obtained accurate measurements of the $^{14}$N/$^{15}$N isotopic ratio in ammonia in two nearby cold, dense molecular clouds, Barnard~1 and NGC 1333. The $^{14}$N/$^{15}$N ratio in Barnard~1, $334 \pm 50$ (3$σ$), is particularly well constrained and falls in between the local interstellar medium/proto-solar
Lis, Darek C. +3 more
openaire +4 more sources
The fate of nitrogen in the Zarin-Gol River receiving trout farm effluent
Scientific Reports, 2023 This study investigated the Zarrin-Gol River ecosystem in Iran to trace organic matter in the food web and evaluate the impact of aquaculture farm effluent using stable isotopes of nitrogen (δ15N) and carbon (δ13C).
Altin Ghojoghi +6 more
doaj +1 more source