sentences:  The Sudan Zone receives higher rainfall in the range of and is further subdivided into three sectors namely, the central plateau sector, the Mouhoun sector and the Pendjari–Mékrou sector and has widely varying vegetation depending on human occupation for agriculture and mostly savanna vegetation, predominantly wooded savanna.the Pendjari–Mékrou sector with its floodplains and many ephemeral rivers, is less populated by humans but has the largest population of mammals in the country; vultures and raptors are also reported.The Sudano-Guinean Zone in the southwest corner of the country is a humid zone with an annual rainfall in the range of .