Reuters photographer Ueslei Marcelino visited the Waura tribe in Xingu national park, Mato Grosso state. Quarup is a ritual held over several days to honour a person of great importance who has died. This year the Waura tribe is honouring their late chief Atamai, who died in 2012 and helped created the Xingu park, and his important contribution in facilitating communication between white and indigenous Brazilians