Meta‐analysis and critical review of trophic discrimination factors ( Δ 13 C and Δ 15 N ): Importance of tissue, trophic level and diet source

• Published in: Functional ecology Vol. 37; no. 9; pp. 2535 - 2548
• Main Authors: Stephens, Ryan B., Shipley, Oliver N., Moll, Remington J.
• Format: Journal Article
• Language: English
• Published: London Wiley Subscription Services, Inc 01.09.2023
• Subjects: Amino acid composition; Amino acids; Assessments; Bayesian analysis; Bayesian theory; carbon; Carbon 13; Diet; dietary protein; Ecology; Fish; Food chains; Isotopes; Literature reviews; Meta-analysis; nitrogen; protein content; Stable isotopes; Taxa; Tissues; Trophic levels; Vertebrates

Robustly quantifying dietary resource use and trophic position using stable isotopes requires accurate trophic discrimination factors (TDF; Δ 13 C and Δ 15 N for carbon and nitrogen, respectively), defined as the isotopic difference between consumer and diet. Early TDF studies converged on values of...