publication . Article . 2005

hydrogen isotope ratios in animal body protein reflect trophic level

JENNIFER BIRCHALL; TAMSIN C. O'CONNELL; TIM H. E. HEATON; ROBERT E. M. HEDGES;
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  • Published: 01 Sep 2005 Journal: Journal of Animal Ecology, volume 74, pages 877-881 (issn: 0021-8790, eissn: 1365-2656, Copyright policy)
  • Publisher: Wiley
Abstract
1Carbon and nitrogen isotope ratios in consumer tissues are known to correlate with diet isotope composition, and nitrogen isotope ratios are observed to increase with increasing trophic level.2We analysed nitrogen and hydrogen isotope ratios of collagen from 19 species of British fish, birds and mammals to investigate how δD also correlated with trophic level and with feeding environment (terrestrial or aquatic).3A strong relationship between trophic level and δD was discovered for both terrestrial and aquatic consumers.4The correlation between trophic level and δ15N was apparent for terrestrial consumers, but less so for aquatic consumers.5No differentiation w...
Subjects
free text keywords: Animal Science and Zoology, Ecology, Evolution, Behavior and Systematics, Food web, Ecology, Isotope analysis, δ15N, Trophic level, Isotope, Biology, Human food, Isotopes of nitrogen, Hydrogen isotope
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