'Defending our existence': Colombian tribe stands in way of oil exploration

In part three of our series, the Siona people stress opposition to any operations on their territory

• 'The war goes on': one tribe caught up in Colombia's armed conflict
• Colombian tribe calls for action on alleged effects of UK oil firm

Pablo Maniguaje, an indigenous Siona man, is wearing a white-sleeved tunic and peccary tooth necklace. To the right, out of sight, is the Putumayo River, running downstream towards Peru and the main trunk of the Amazon.

Maniguaje is talking about his territory. He is keen to emphasise its importance to the Siona people. "The trees, the water, the air " That's life for us," he said. "What else is there?"