New paper published on spatial and temporal variation in stable isotope analysis

Figure 3 from Tonra et al. (2014)

Assignments of breeding season origin for pied flycatchers based on feather deuterium sampled in Ghana (see Tonra et al. for details).

A new paper out by Tonra and colleagues looks at whether incorporating different sources of error improves stable isotope geographic assignments. Surprisingly, one of their findings was that “neither year- nor site-specific methods improved assignment precision or accuracy.”  The authors also present one of the first analyses of the relationship between individual and environmental annual variation in hydrogen isotopes. A great paper to read for those working with precipitation-derived stable isotopes!

Incorporating site and year-specific deuterium ratios (δ2H) from precipitation into geographic assignments of a migratory bird


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