While lead isotopes serve to determine potential ore provenance, silver isotopes help evaluate if a specific ore flagged by Pb isotopes has actually been exploited as a silver source of bullion in antiquity. The combination of Ag and Pb isotopes thus constitutes a powerful tool to address provenance and identify potential ore sources. It has recently been observed that the vast majority of silver isotopic abundances in hundred...

Nonrandom dispersal has been recently advanced as a mechanism promoting fine‐scale genetic differentiation in resident populations, yet how this applies to species with high rates of dispersal is still unclear. Using a migratory species considered a classical example of male‐biased dispersal (the greater snow goose, Chen caerulescens atlantica ), we documented a temporally stable fine‐scale genetic clustering between spatially...