The "Neolithic revolution" is, among other things, characterized by an important modification in the economics of sustenance. This is equally true for the Neolithic populations of the Danube, as humans developed from predator to food producers. It is therefore not surprising that gathering and agriculture are the most evident activities at the Gumelnita level of the Hârsova tell.
Nevertheless, this community apparently continued to benefit from the nutritional resources of a natural environment rich in ecological variety. It had, first of all, a wide river and its often-flooded alluvial plain, and there were slopes and ledges of oak forest, and, moving away from the river, countryside of meadows and steppes.