Do carnivores have a higher proportion of light isotopes than plants?

[ORF]

Hello,

because of the "kinetic isotopic effect",

https://en.m.wikipedia.org/wiki/Kinetic_isotope_effect

can the ratio of the common isotopes of N, C, P, H, O, S determine the position of an individual in the food chain? (eg, have carnivore animals higher proportion of light isotopes than plants? )

Thank you for your time.orf

 

[jim mcnamara]

Partial answer: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.842.9085&rep=rep1&type=pdf

Foodweb analysis using stable isotopes has been around for while, the link is more of a review than anything new.

C, N, O, and Deuterium are the most commonly used elements. And AFAIK, the answer is: it depends on what is the research question specifically answering.

Someone who is more familiar with the techniques and reasoning should comment.