Fences on Lesvos are divided in two categories: stonewalls and wired fences. Most current fences are wired in all land uses, while only about 20% of the cultivated areas and the grazing lands are unfenced. Stonewalls are older than wire fences in general and thus the presence of more stonewalls in the grazing lands zone, where fencing is essential management tool, is expected.The difficulty of constructing and maintaining stonewalls has led to a number of combinations with wire (adding wire on top of the stones) or bush branches that add height and are renewed periodically. On the contrary, wire fences, which are modern constructions, are abundant in olive groves for two reasons. First, older bigger farms were divided after the land reformation scheme was completed or the fields were divided by inheritances (who still continue to divide them). Second, is the issue of security of production and equipment (pumps, nets, etc.). A farmer commented that it is no coincidence when six neighbouring farmers pick up olives on the same day. Each of these farmers passes by to make sure that his/her neighbours pick only their own olives on clear winter days and weekends. All six farms were strongly fenced with high wire.