Other patterns may be indicative of socioeconomic trends, such as the relatively low proportions of horse herded in modern times. The consistencies between the later prehistoric animal bone data and the modern and historic livestock herd compositions indicate the constraining role of the environment on the pastoral economies practiced across the Eurasian steppe, in that pastoral strategies appear to be focussing on species best adapted to regional environments. There are strong biases towards different taxa dependent on region. This paper attempts to advance our understanding of the environmental factors constraining animal husbandry on the prehistoric Eurasian steppe, an area that exhibits a broad range of environmental conditions, through comparisons of data on archaeological animal bone assemblages and historic and modern herd compositions (specifically the proportions of cattle, sheep/goats and horse). Animal physiological and behavioural characteristics affect their suitability to different climatic, topographical and ecological environments.
Pastoral systems may be envisaged as a product of a number of interacting variables: the characteristics of the animals, the environment, and of the human culture.
