INSTITUTO ARGENTINO DE NIVOLOGIA, GLACIOLOGIA Y CIENCIAS AMBIENTALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Camelids stable isotopes (13C y 15N) variability in Central Western Argentina: trends and archaeological implications
GIL, A; NEME, G.; UGAN, A.; OTAOLA, C.; GIARDINA, M.; MICHIELI, C
Congreso; XII ICAZ; 2014
Museo de Historia Natural de San Rafael
Stable isotopes have recently been used as an aid in camelid taxonomic assignment and in identifying the geographic range of human exploitation, both of which build upon earlier studies of altitudinal variation in camelid isotope values in the Andean Puna. This paper expands on these results, providing δ13C and δ15N data from a range of Holocene camelid bone collagen samples taken from Monte, Patagonia, and Puna-Altoandino environments between 30° and 37°S latitude. The results show an isotopic pattern significantly more variable than that identified some years ago for this region. Significant differences in stable carbon isotope value occur only between Patagonian and Monte samples, while stable nitrogen values show no differences regardless of where obtained. There are also no apparent differences among taxa. Resources distribution, rather than taxonomic affiliation, is the most likely explanation for these differences. These results are compared with Pampa, Patagonia and Central Andes areas.