Differential fractionation of stable isotopes of carbon during photosynthesis causes C4
plants and C3 plants to have distinct carbon-isotope signatures. In addition, marine C3 …

Stable isotopes of carbon, nitrogen, and sulfur are used as ecological tracers for a variety of
applications, such as studies of animal migrations, energy sources, and food web pathways …

Breath and diet samples were collected from 29 taxa of animals at the Zurich and Basel
Zoos to characterize the carbon isotope enrichment between breath and diet. Diet samples …

Studies of birds that use stable isotopes as dietary tracers require estimates of how quickly
stable isotopes in tissues are replaced by isotopes derived from the diet. However, isotopic …

The dietary habits of most small mammals are not well documented, and stable isotope
measurements can provide information on when and how diets change. Here we document …

Understanding rates of isotopic incorporation and discrimination factors between tissues
and diet is an important focus of ecologists seeking to use stable isotopes to track temporal …

Rationale In order to use stable isotope ratio values obtained from wild animal tissues, we
must accurately calculate the differences in isotope ratios between diet and consumer …

Stable isotopes of carbon are commonly used to characterize dietary preferences in
animals. Because turnover rates of carbon isotopes are related to metabolic rate, we wanted …

Increased use of stable isotope analysis to examine food-web dynamics, migration, transfer
of nutrients, and behavior will likely result in expansion of stable isotope studies …

Carbon and oxygen isotope ratios of bone apatite were measured in 14 endothermic and
ectothermic vertebrates native to the Chihuahuan Desert and collected in June and July of …