Pastoral land-use of the Indus Civilization in Gujarat: faunal analyses and biogenic isotopes at Bagasra
2014
Chase, Brad | Meiggs, David | Ajithprasad, P. | Slater, Philip A.
The Indus Civilization (2600–1900 BC) in Gujarat is characterized by a series of small yet monumentally walled settlements located along trade and travel corridors. The manufacture and use of typically Harappan material culture at these settlements demonstrates that many residents of these sites participated in exchange and interaction networks that linked them to distant Indus cities. Less is known, however, regarding the ways in which the residents of these sites were situated into their local landscapes. Here we combine previously published faunal analyses from the small walled settlement of Bagasra in the Indian state of Gujarat, with a preliminary investigation of intra- and inter-individual variation in the ratios of biogenic isotopes of strontium (⁸⁷Sr/⁸⁶Sr), carbon (δ¹³C), and oxygen (δ¹⁸O) in the tooth enamel of domestic animals consumed at the site. ⁸⁷Sr/⁸⁶Sr ratios in the teeth of sheep and goats exhibit little intra- or inter-individual variation suggesting that most were raised locally while greater inter-individual variation in the teeth of cattle suggesting that nearly half of these animals were either raised further afield or were supplied with fodder raised elsewhere. δ¹³C values from these same samples in the teeth of sheep and goats exhibit considerable intra-individual variation suggesting of a seasonally variable diet incorporating significant wild forage while uniformly higher values in the teeth of cattle suggest that they consumed mostly agricultural produce throughout the year. δ¹⁸O values in the teeth of both sets of domestic livestock exhibit considerable intra-individual variation commensurate with the seasonal variation in temperature and rainfall characteristic of the region while variation between taxa is consistent with observed dietary differences. Taken together, our findings provide new information regarding the ways in which the domestic animals consumed at Bagasra were raised and obtained while establishing an empirical baseline necessary for further exploration of the land-use changes that may have accompanied the emergence and decline of South Asia's first urban civilization.
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