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Updated: Jun 29, 2025

Fatty Acid 13C Isotopologue Profiling Provides Insight into Trophic Carbon Transfer and Lipid Metabolism of Invertebrate Consumers
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Fatty Acid 13C Isotopologue Profiling Provides Insight into Trophic Carbon Transfer and Lipid Metabolism of Invertebrate Consumers

Published on: April 17, 2018

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氨基酸特异性同位素揭示了50年来太平洋海鸟在五维区分的变化

Francis van Oordt1, Antonio Cuba2, Emily S Choy3

  • 1Department of Natural Resources Sciences, McGill University, Sainte-Anne-de-Bellevue, QC, Canada. francis.vanoordtlahoz@mail.mcgill.ca.

Scientific reports
|April 3, 2024
PubMed
概括

多同位素分析揭示了海鸟物种的独特生态. 加入硫和氨基酸同位素澄清了利基区分和饮食变化,特别是对于面临猎物变化的鱼来说.

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Speciation Rates01:07

Speciation Rates

Overview
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Mass Spectrometry: Isotope Effect

Most elements exist in nature as a mixture of isotopes. The isotopes differ in weight due to their respective number of neutrons. The molecular weight of a molecule is different depending on the specific isotope of its elements involved. As a result, the mass spectrum of the molecule exhibits peaks from the same fragment at multiple positions. The positions of these mass signals depend on the difference between the molecular mass. Furthermore, the intensity of these signals is dependent on the...
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The Evidence for Evolution02:55

The Evidence for Evolution

Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
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Gene Evolution - Fast or Slow?

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Many organic, inorganic, and biological molecules contain spin-half nuclei such as nitrogen-15, fluorine-19, and phosphorus-31. As a result, NMR studies of these nuclei have found extensive applications in chemical and biological research.
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