%0 Journal Article %T Stable Isotope Sourcing Using Sampling %A Erik B. Erhardt %A Blair O. Wolf %A Merav Ben-David %A Edward J. Bedrick %J Open Journal of Ecology %P 289-298 %@ 2162-1993 %D 2014 %I Scientific Research Publishing %R 10.4236/oje.2014.46027 %X
Stable isotope mixing models are used to estimate proportional contributions of sources to a mixture, such as in the analysis of animal diets, plant nutrient use, geochemistry, pollution, and forensics. We describe an algorithm implemented as SISUS software for providing a user-specified number of probabilistic exact solutions derived quickly from the extended mixing model. Our method outperforms IsoSource [1], a deterministic algorithm for providing approximate solutions to represent the solution polytope. Our method is an approximate Bayesian large sample procedure. SISUS software is freely available at StatAcumen.com/sisus and as an R package at cran.r-project.org/web/packages/sisus.
%K SISUS %K IsoSource %K Mixing Model %K Animal Ecology %K Markov Chain Monte Carlo %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=46187