We show that an animal's past and present diet can be distinguished through the δ 13 C of
exhaled CO 2. The exhaled δ 13 C of 12 pigeons fed solely corn (a C 4 plant) for 30 days …

Rationale The eco‐physiological mechanisms that govern the incorporation and routing of
macronutrients from dietary sources into consumer tissues determine the efficacy of stable …

We tested the reliability of herbivore faecal δ 13 C and δ 15 N values for reconstructing diet
through review of an extensive database derived from a 3-year study of ungulates in South …

We used natural abundance stable isotope techniques to estimate carbon and nitrogen
turnover rates in body tissue and mucus of earthworms. Isotope ratios of carbon (δ 13 C) and …

The measurement of stable isotopes in 'bulk'animal and plant tissues (eg, muscle or leaf)
has become an important tool for studies of functional diversity from organismal to …

The amount of isotopic fractionation (change in isotope ratios) between diet and animal
tissues is generally poorly known and may be affected by trophic position. Diet-tissue …

Summary 1 Three experiments were performed, using laboratory mice (Mus musculus) as a
model species, to evaluate the potential of using measurements of carbon isotope ratios in …

Analysis of carbon (13C/12C) and nitrogen (15N/14N) stable isotope ratios (hereafter δ13C
and δ15N, respectively) in animal tissues is a powerful tool in food-web studies. However …

Increasing use is being made of stable isotopes as indicators of habitat use and trophic
ecology of animals. Preservation of tissues can alter stable isotope signatures. We …

The isotope enrichment ɛ* of 13 C between tooth enamel of large ruminant mammals and
their diet is 14.1±0.5‰. This value was obtained by analyzing both the dental enamel of a …