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Article Dans Une Revue Scientific Reports Année : 2020

Early evidence of sheep lambing de-seasoning in the Western Mediterranean in the sixth millennium BCE

Résumé

Today, sheep farmers in the Western Mediterranean de-season their ewes to achieve autumnal births. This strategy contrasts sharply with spring lambing further north, and provides benefits in terms of out-of-season availability of animal products. These competences are closely linked to specific sheep physiology and favorable Western Mediterranean climatic conditions. It is not known exactly how far back in the past the ability to de-season Mediterranean sheep breeds extends. This study shows that this practice existed seven millennia ago in Southern France, at an early stage of the major agricultural expansion of the Neolithic into the Western Mediterranean. To achieve this reproductive management regime, three prerequisites were required: (i) the ability of sheep to give birth in autumn, constituting early evidence for the genetic selection of specimens with prolonged reproductive fertility; (ii) intentional management of female and male interactions within the herd, which would have required good knowledge of the timing of the fertility cycle in ewes, and; (iii) adequate pasture resources to support lactation in the autumn, possibly favored by autumnal rains, substantiating previous paleoclimatological data for the existence of a Mediterranean-type precipitation regime at that time. Moreover, we also show that winter foddering of sheep occurred, using forest resources, and that this maintained good body weights for spring mating. These findings add pivotal information about shepherding practices and the socioeconomic abilities of Early Neolithic communities, which allowed for the extension of their areas of influence from the Eastern Mediterranean area to the West during the Early Neolithic agricultural expansion in Europe.
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hal-03026881 , version 1 (26-11-2020)

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Carlos Tornero, Marie Balasse, Stéphanie Bréhard, Isabelle Carrère, Denis Fiorillo, et al.. Early evidence of sheep lambing de-seasoning in the Western Mediterranean in the sixth millennium BCE. Scientific Reports, 2020, 10, ⟨10.1038/s41598-020-69576-w⟩. ⟨hal-03026881⟩
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