Climate changes and human–environment interactions in the Apulia region of southeastern Italy during the Neolithic period

The objective of our research was to define the main human–environment interactions during the Neolithic period (6500–3700 bc) in the Apulia region of southeastern Italy based on available published and unpublished data. Knowledge of these interactions is crucial to understanding the cultural and social dynamics of the period, particularly concerning the earliest farmers. Using a multidisciplinary approach, paleoenvironmental and paleoclimatological data at the regional and Mediterranean scales were compared with the results of analyses performed on natural deposits and deposits in Neolithic settlements. The following data sets were used: (1) 121 14C dates for settlements, from which probability curves (%) of the Apulian Archaeological Occupation (AAO) were developed; (2) offshore data obtained from analyses performed on two offshore sediment cores drilled in the Adriatic Sea; (3) offsite data from studies conducted in two natural coastal contexts; and (4) onsite archaeobotanical data from 35 settlements. This study allowed us to tentatively define the main climatic features between 6200 and 3700 bc. We identified two dry phases (one between 5000 and 4600 bc and a second that peaked c. 4000 bc) and two wet intervals (one between 6200 and 5500 bc and a second that peaked around 4400 bc). Climate changes appear to have been relatively gradual. The use of archaeobotanical data allowed us to determine a direct link between paleoclimatic and archaeological sequences. These data highlight the variations in agricultural strategies (species used and harvest times) as humans responded to changes in the rainfall regime.

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