Climate change and camelid use in the Southern Andes from Pleistocene/Holocene through Middle Holocene

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  • Climate change and camelid use in the Southern Andes from Pleistocene/Holocene through Middle Holocene

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Title


Climate change and camelid use in the Southern Andes from Pleistocene/Holocene through Middle Holocene

Subject

S3-1, Climate Change, Human Response and Archaeozoology, oral

Description

Abstract:

The presentation will examine the relationship between long-term climatic change in the highlands of the Southern Andes, and the changing strategies of hunter-gatherers. These strategies involved a specialization in the use of wild camelids. Several paleonvironmental proxies were employed and the archaeofaunal data-base involved the analysis of more than 20 sites which dates between 10,600 and 3500 years BP. The Early Holocene shows more stable conditions than the Mid-Holocene. Wetlands (the main locus for human occupation) seem to have been widespread during the Early Holocene, but in the Mid-Holocene they were less stable and restricted to higher altitudes (above 4000 masl). Occasionally they were associated to permanent river flows or wetlands in lower altitudes. The climatic change to drier conditions took place as of 8400 BP to 7000 BP. Human response to this new climatic condition was a growing use of camelids, which increase from 48% in the regional average to 84% after that date; meanwhile other resources diminished. In the Early Holocene only 30% of the sites had camelid dominance, but this increase to 80% in the Middle Holocene. Also, there is a reduction of the variability between localities, which resulted in more regular patterns. This process is explained as a change in the strategies of hunter-gatherers from an opportunistic use of camelids favored by the wetter and stable conditions to a specialized utilization in restricted places in which these resources were packed.

Authors:

YACOBACCIO Hugo D.

Affiliations

CONICET- Instituto de Arqueología, Universidad de Buenos Aires, 25 de Mayo 221, C1002ABE Buenos Aires, Argentina. hdyacobaccio@gmail.com

Creator

Yacobaccio, Hugo D.

Date

August 2010

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Document Item Type Metadata

Citation

Yacobaccio, Hugo D.. " Climate change and camelid use in the Southern Andes from Pleistocene/Holocene through Middle Holocene ," in BoneCommons, Item #1657, http://alexandriaarchive.org/bonecommons/items/show/1657 (accessed August 7, 2020).