Dogs under urbanization: Isotopic insight from the Bronze Age Central Plains of China (ca. 2000–1000 BCE)

Although dogs played multifaceted roles during the early stages of urbanization in China’s Central Plains, research remains limited concerning the management of dogs, the dynamics of human–dog relationships, and dogs’ entanglements with the political economy, ritual, and daily life. Here, we compare stable carbon and nitrogen isotope data from 95 dogs and associated human skeletons from 15 Late Neolithic – Bronze Age sites. Results show two distinct dietary patterns in dogs. Early sites (Xinzhai-Erlitou period, 1900–1520 BCE) show more variability in dog diets, indicative of looser approaches to dog management. Later sites (Late Shang-Western Zhou periods, 1320–770 BCE) show a widespread, homogeneous diet among dogs characterized by higher consumption of C₄ millet (greater than in humans’ diets), suggesting the possibility of the emergence of specialized, broadly shared dog management practices linked to increased ritual use of dogs. This study also underscores the complexity of management practices, which would have been influenced by site-specific conditions, including environment and available resources, the site’s position in hierarchical settlement networks, and the varying roles of the dogs. Importantly, this study demonstrates that the comparison of isotopic data from broad temporal and spatial contexts can shed light on animal management practices in early urban economic systems and political economies.