Reconstructing Asian faunal introductions to eastern Africa from multi-proxy biomolecular and archaeological datasets - Université Pierre et Marie Curie
Article Dans Une Revue PLoS ONE Année : 2017

Reconstructing Asian faunal introductions to eastern Africa from multi-proxy biomolecular and archaeological datasets

Heidi Eager
  • Fonction : Auteur
Eriéndira Quintana Morales
  • Fonction : Auteur
Verena Schuenemann
  • Fonction : Auteur
Evangelos Dimopoulos
  • Fonction : Auteur
Richard Helm
  • Fonction : Auteur
Mark Horton
  • Fonction : Auteur
Stephanie Wynne-Jones
  • Fonction : Auteur
Jeffrey Fleisher
  • Fonction : Auteur
Chantal Radimilahy
  • Fonction : Auteur
Henry Wright
  • Fonction : Auteur
Jeremy Searle
  • Fonction : Auteur
Johannes Krause
  • Fonction : Auteur
Greger Larson
  • Fonction : Auteur
Nicole Boivin
  • Fonction : Auteur

Résumé

Human-mediated biological exchange has had global social and ecological impacts. In sub-Saharan Africa, several domestic and commensal animals were introduced from Asia in the pre-modern period; however, the timing and nature of these introductions remain contentious. One model supports introduction to the eastern African coast after the mid-first millennium CE, while another posits introduction dating back to 3000 BCE. These distinct scenarios have implications for understanding the emergence of long-distance maritime connectivity, and the ecological and economic impacts of introduced species. Resolution of this longstanding debate requires new efforts, given the lack of well-dated fauna from high-precision excavations, and ambiguous osteomorphological identifications. We analysed faunal remains from 22 eastern African sites spanning a wide geographic and chronological range, and applied biomolecular techniques to confirm identifications of two Asian taxa: domestic chicken (Gallus gallus) and black rat (Rattus rattus). Our approach included ancient DNA (aDNA) analysis aided by BLAST-based bioinformatics, Zooarchaeology by Mass Spectrometry (ZooMS) collagen fingerprinting, and direct AMS (accelerator mass spectrometry) radiocarbon dating. Our results support a late, mid-first millennium CE introduction of these species. We discuss the implications of our findings for models of biological exchange, and emphasize the applicability of our approach to tropical areas with poor bone preservation.
Fichier principal
Vignette du fichier
main.pdf (13.39 Mo) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte
licence

Dates et versions

hal-04049785 , version 1 (07-01-2025)

Licence

Identifiants

Citer

Mary Prendergast, Michael Buckley, Alison Crowther, Laurent Frantz, Heidi Eager, et al.. Reconstructing Asian faunal introductions to eastern Africa from multi-proxy biomolecular and archaeological datasets. PLoS ONE, 2017, 12 (8), pp.e0182565. ⟨10.1371/journal.pone.0182565⟩. ⟨hal-04049785⟩
17 Consultations
0 Téléchargements

Altmetric

Partager

More