Climatic change and diet of the pre-Hispanic population of Gran Canaria (Canary Archipelago, Spain) during the Medieval Warm Period and Little Ice Age
Fiche du document
- ISIDORE Id: 10670/1.3392c3...
- hal: hal-03293366
- doi: 10.1016/j.jas.2021.105336
- PII: S0305-4403(21)00006-6
- WOS: 000632613200002
Ce document est lié à :
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jas.2021.105336
http://creativecommons.org/licenses/by-nc-nd/ , info:eu-repo/semantics/OpenAccess
Mots-clés
Pre-hispanic population Gran Canaria Climate change DietStable isotopes Medieval warm period Little ice ageSujets proches
Populations, Human Human populations Population growth Human population Demography DemographicsCiter ce document
Christophe Lécuyer et al., « Climatic change and diet of the pre-Hispanic population of Gran Canaria (Canary Archipelago, Spain) during the Medieval Warm Period and Little Ice Age », HAL SHS (Sciences de l’Homme et de la Société), ID : 10.1016/j.jas.2021.105336
Métriques
Partage / Export
Résumé
The hard and soft tissue remains of a pre-Hispanic population of the Gran Canaria Island at six different archaeological localities were studied using C-14 dating and stable isotope compositions. Radiocarbon dating indicates island occupation ranging from the beginning of the 7th to the mid-14th century. We analyzed the oxygen isotope compositions of apatite phosphate bones of some pre-Hispanic individuals. The oxygen isotope compositions of meteoric water (delta O-18(w)) show a significant decrease from -2.1 +/- 1.5 to-4.4 +/- 1.2 parts per thousand (VSMOW) from the Medieval Warm Period (MWP) to the Little Ice Age (LIA). This is interpreted to reflect a decrease in air temperature by about 5 +/- 3 degrees C. Archaeological data along with delta C-13, delta N-15 and delta S-34 values of soft tissue indicate that the pre-Hispanic population from Gran Canaria relied on agriculture throughout the 7th to mid-14th century. However, a significant contribution of seafood to the diet of the pre-Hispanic population is observed at archaeological sites located close to the shore. These results suggest cultural resilience in the pre-Hispanic population of Gran Canaria, reflected in the relative constancy of their diet in light of climate change.
