Stable isotopes unveil one millennium of domestic cat paleoecology in Europe.

The domestic cat is the world's most popular pet and one of the most detrimental predators in terrestrial ecosystems. Effective protection of wildlife biodiversity demands detailed tracking of cat trophic ecology, and stable isotopes serve as a powerful proxy in dietary studies. However, a variable diet can make an isotopic pattern unreadable in opportunistic predators. To evaluate the usefulness of the isotopic method in cat ecology, we measured C and N isotope ratios in hundreds of archaeological cat bones. We determined trends in cat trophic paleoecology in northern Europe by exploiting population-scale patterns in animals from diverse locations. Our dataset shows a high variability of isotopic signals related to the socio-economic and/or geomorphological context. This points toward regularities in isotopic patterns across past cat populations. We provide a generalized guide to interpret the isotopic ecology of cats, emphasizing that regional isotopic baselines have a major impact on the isotopic signal.

Kings and peasants from El-Zuma/El-Detti microregion in the Early Makurian period. Economic aspects of animal bones from funerary contexts.

Tumuli fields at El-Zuma and El-Detti were dated to the 2nd phase of the Early Makurian period, c. AD 450-550. They represented three types of tombs of different sizes and structures. The animal remains from these graves were analyzed in the context of animal economy practiced by the people who lived in the vicinity of the burial sites. aDNA analysis was conducted for cattle remains to explain its origin and significance for the inhabitants of the region. The research showed agricultural nature of the settlement located to the north of the Nile Valley with a great importance of cattle and sheep breeding. It also indicated the northern direction of trade and cultural contacts of the society based in the El-Zuma/El-Detti microregion and the deep social stratification within this group.