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Discontinuity of human presence at Atapuerca during the early Middle Pleistocene: a matter of ecological competition?

ABSTRACT: Increasing evidence suggests that the European human settlement is older than 1.2 Ma. However, there is a fierce debate about the continuity or discontinuity of the early human settlement of Europe. In particular, evidence of human presence in the interval 0.7-0.5 Ma is scarce in comparison with evidence for the previous and later periods. Here, we present a case study in which the environmental conditions at Sierra de Atapuerca in the early Middle Pleistocene, a period without evidence of human presence, are compared with the conditions in the previous period, for which a relatively intense human occupation is documented. With this objective in mind, the available resources for a human population and the intensity of competition between secondary consumers during the two periods are compared using a mathematical model. The Gran Dolina site TD8 level, dated to 0.7-0.6 Ma, is taken as representative of the period during which Atapuerca was apparently not occupied by humans. Conditions at TD8 are compared with those of the previous period, represented by the TD6-2 level, which has yielded abundant evidence of intense human occupation. The results show that survival opportunities for a hypothetical human population were lower at TD8 than they were at TD6-2. Increased resource competition between secondary consumers arises as a possible explanation for the absence of human occupation at Atapuerca in the early Middle Pleistocene.

SUBMITTER: Rodriguez-Gomez G

PROVIDER: S-EPMC4114206 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Discontinuity of human presence at Atapuerca during the early Middle Pleistocene: a matter of ecological competition?

Rodríguez-Gómez Guillermo G Mateos Ana A Martín-González Jesús Angel JA Blasco Ruth R Rosell Jordi J Rodríguez Jesús J

PloS one 20140723 7

Increasing evidence suggests that the European human settlement is older than 1.2 Ma. However, there is a fierce debate about the continuity or discontinuity of the early human settlement of Europe. In particular, evidence of human presence in the interval 0.7-0.5 Ma is scarce in comparison with evidence for the previous and later periods. Here, we present a case study in which the environmental conditions at Sierra de Atapuerca in the early Middle Pleistocene, a period without evidence of human ...[more]

PMID: 25054305

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Discontinuity of human presence at Atapuerca during the early Middle Pleistocene: a matter of ecological competition?

Publications

Discontinuity of human presence at Atapuerca during the early Middle Pleistocene: a matter of ecological competition?

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