Source partitioning using stable isotopes: coping with too much variation.

Source partitioning using stable isotopes: coping with too much variation.
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DOI:
10.1371/journal.pone.0009672
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发表时间:
2010-03-12
期刊:
影响因子:
3.7
通讯作者:
Jackson AL
Jackson AL
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Parnell AC;Inger R;Bearhop S;Jackson AL

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Stable isotope analysis is increasingly being utilised across broad areas of ecology and biology. Key to much of this work is the use of mixing models to estimate the proportion of sources contributing to a mixture such as in diet estimation. By accurately reflecting natural variation and uncertainty to generate robust probability estimates of source proportions, the application of Bayesian methods to stable isotope mixing models promises to enable researchers to address an array of new questions, and approach current questions with greater insight and honesty. We outline a framework that builds on recently published Bayesian isotopic mixing models and present a new open source R package, SIAR. The formulation in R will allow for continued and rapid development of this core model into an all-encompassing single analysis suite for stable isotope research.
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