The long term anthropocene history in the Atacama desert

Conférence du Pr. Calogero M. Santoro, Instituto de Alta Investigación, Universidad de Tarapacá

29 novembre 2017 à 14h, MAE, salle 311G, 3e étage

Calogero M. Santoroa, Pablo A. Marquetb,c, Eugenia Gayod, Claudio Latorre b,c,e, José Caprilesf, Virginia McRostiec,e,g

a Instituto de Alta Investigación, Universidad de Tarapacá, Arica, Chile.
b Departamento de Ecología, facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, CP 6513677, Santiago, Chile.
c Instituto de Ecología y Biodiversidad (IEB), Santiago, Chile.
d Center for Climate and Resilience Research (CR)2 & Departamento de Oceanografía, Universidad de Concepción, Concepción, Chile.
e Centro UC del Desierto de Atacama, Pontificia Universidad Católica de Chile, Alameda 340, Santiago, Chile.
f Department of Anthropology, The Pennsylvania State University, University Park, PA 16803.
g Departamento de Antropología, Facultad de Ciencias Sociales, Pontificia Universidad Católica de Chile, Santiago, Chile.

We analyze a 13,000 years time line of socio-cultural processes in the Pampa del Tamarugal (PDT) Basin of the Atacama Desert to answer questions related to How human societies have affected and being affected by ecosystems changes (i.e. niche construction) during this period? Based on the intensity of human occupations in the PDT, along with past climate changes and shifting environmental conditions, we propose three major epoch of niche construction: (1) Postglacial epoch (ca. 13,000-3,500 cal. BP) associated to a hunting gathering niche with marginal impact on ecosystems, (2) a late Holocene epoch (3,500-150 BP) characterized by a farming and silviculture sedentary niche with important transformations of certain fertile loci within the Atacama Desert.