arbre (2) strontium (2) productivité (2) papier (2) cheptel sur pied (2) lumière (2) isotope (2) animal (2) aliment (2) taux (2) profession (2) Food (2) Provisioning (2) Strontium (2) Strategy (2) Societies (2) Shipping (2) Sheep (2) Scarcity (2) Radius (Anatomy) (2) Pastures (2) Paper (2) Migration, Internal (2) Livestock (2) Light (2) Leaves (2) Iron age (2) Inbreeding (2) Impact (2) Goats (2)