iScience (Mar 2023)

Human interactions with tropical environments over the last 14,000 years at Iho Eleru, Nigeria

  • Jacopo Niccolò Cerasoni,
  • Emily Yuko Hallett,
  • Emuobosa Akpo Orijemie,
  • Kseniia Ashastina,
  • Mary Lucas,
  • Lucy Farr,
  • Alexa Höhn,
  • Christopher A. Kiahtipes,
  • James Blinkhorn,
  • Patrick Roberts,
  • Andrea Manica,
  • Eleanor M.L. Scerri

Journal volume & issue
Vol. 26, no. 3
p. 106153

Abstract

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Summary: The Ihò Eléérú (or Iho Eleru) rock shelter, located in Southwest Nigeria, is the only site from which Pleistocene-age hominin fossils have been recovered in western Africa. Excavations at Iho Eleru revealed regular human occupations ranging from the Later Stone Age (LSA) to the present day. Here, we present chronometric, archaeobotanical, and paleoenvironmental findings, which include the taxonomic, taphonomic, and isotopic analyses of what is the only Pleistocene faunal assemblage documented in western Africa. Our results indicate that the local landscape surrounding Iho Eleru, although situated within a regional open-canopy biome, was forested throughout the past human occupation of the site. At a regional scale, a shift from forest- to savanna-dominated ecotonal environment occurred during a mid-Holocene warm event 6,000 years ago, with a subsequent modern reforestation of the landscape. Locally, no environmental shift was observable, placing Iho Eleru in a persistent forested “island” during the period of occupation.

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