We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Intrapopulation variability shaping isotope discrimination and turnover: experimental evidence in arctic foxes.
- Authors
Lecomte, Nicolas; Ahlstrøm, Oystein; Ehrich, Dorothée; Fuglei, Eva; Ims, Rolf A; Yoccoz, Nigel G
- Abstract
Tissue-specific stable isotope signatures can provide insights into the trophic ecology of consumers and their roles in food webs. Two parameters are central for making valid inferences based on stable isotopes, isotopic discrimination (difference in isotopic ratio between consumer and its diet) and turnover time (renewal process of molecules in a given tissue usually measured when half of the tissue composition has changed). We investigated simultaneously the effects of age, sex, and diet types on the variation of discrimination and half-life in nitrogen and carbon stable isotopes (δ¹⁵N and δ¹³C, respectively) in five tissues (blood cells, plasma, muscle, liver, nail, and hair) of a top predator, the arctic fox Vulpes lagopus.
- Publication
PloS one, 2011, Vol 6, Issue 6, pe21357
- ISSN
1932-6203
- Publication type
Journal Article
- DOI
10.1371/journal.pone.0021357