Journal ArticleDOI
Influence of diet on the distribution of nitrogen isotopes in animals
Michael J. DeNiro,Samuel Epstein +1 more
TLDR
In this article, the influence of diet on the distribution of nitrogen isotopes in animals was investigated by analyzing animals grown in the laboratory on diets of constant nitrogen isotopic composition and found that the variability of the relationship between the δ(15)N values of animals and their diets is greater for different individuals raised on the same diet than for the same species raised on different diets.About:
This article is published in Geochimica et Cosmochimica Acta.The article was published on 1978-05-01. It has received 5562 citations till now. The article focuses on the topics: Population & Isotope analysis.read more
Citations
More filters
Journal ArticleDOI
Using stable isotopes to estimate trophic position: models, methods, and assumptions
TL;DR: In this article, the authors developed and discussed methods for generating an isotopic baseline and evaluate the assump- tions required to estimate the trophic position of consumers using stable isotopes in multiple ecosystem studies.
Journal ArticleDOI
Stable isotopes in ecosystem studies
Bruce J. Peterson,Brian Fry +1 more
TL;DR: The use of stable isotopes to solve biogeochemical problems in ecosystem analysis is increasing rapidly because stable isotope data can contribute both source-sink (tracer) and process information: the elements C, N, S, H, and all have more than one isotope, and isotopic compositions of natural materials can be measured with great precision with a mass spectrometer as mentioned in this paper.
Journal ArticleDOI
Stepwise enrichment of 15N along food chains: Further evidence and the relation between δ15N and animal age
Masao Minagawa,Eitaro Wada +1 more
TL;DR: The isotopic composition of nitrogen was measured in marine and fresh-water animals from the East China Sea, The Bering Sea, Lake Ashinoko and Usujiri intertidal zone as mentioned in this paper.
Journal ArticleDOI
Variation in trophic shift for stable isotope ratios of carbon, nitrogen, and sulfur
TL;DR: For example, this article found that the trophic shift for C was lower for consumers acidified prior to analysis than for unacidified samples ( +0.5 + 0.13%o rather than 0.0%o, as commonly assumed).
Journal ArticleDOI
Getting to the fat of the matter: models, methods and assumptions for dealing with lipids in stable isotope analyses
David M. Post,Craig A. Layman,D. Albrey Arrington,Gaku Takimoto,John Quattrochi,Carman G Montaña +5 more
TL;DR: The results indicate that lipid extraction or normalization is most important when lipid content is variable among consumers of interest or between consumers and end members, and when differences in δ13C between end members is <10–12‰.
References
More filters
Journal ArticleDOI
A rapid method of total lipid extraction and purification.
E. G. Bligh,W. J. Dyer +1 more
TL;DR: The lipid decomposition studies in frozen fish have led to the development of a simple and rapid method for the extraction and purification of lipids from biological materials that has been applied to fish muscle and may easily be adapted to use with other tissues.
Journal ArticleDOI
On the Isotopic Chemistry of Carbonates and a Paleotemperature Scale
TL;DR: In this paper, the temperature variation of the fractionation of oxygen in exchange reactions between dissolved carbonate and water and between calcite and water was calculated on theoretical grounds, and checked experimentally.
Journal ArticleDOI
Two Categories of 13C/12C Ratios for Higher Plants
Bruce N. Smith,Samuel Epstein +1 more
TL;DR: δ 13C/12C ratios have been determined for plant tissue from 104 species representing 60 families and photosynthetic fractionation leading to such values is discussed.
Journal ArticleDOI
The geochemistry of the stable carbon isotopes
TL;DR: A survey of the variation of the ratio C13/C12 in nature can be found in this paper, where Urey and his co-workers used two complete feed systems with magnetic switching to determine small differences in isotope ratios between samples and a standard gas.
Book
The principles of insect physiology
TL;DR: In this paper, the development of the tracheal system is described in the context of the development in the egg and its development in a cocoon during moulting and metamorphosis.
Related Papers (5)
Stepwise enrichment of 15N along food chains: Further evidence and the relation between δ15N and animal age
Masao Minagawa,Eitaro Wada +1 more