A severe drought is threatening South Africa’s wildlife with game farmers keeping fewer animals and tourists visiting game lodges in smaller numbers, subsequently hitting he entire wildlife industry.

“It’s been an extraordinary drought,” said WRSA chief Adri Kitshoff-Botha. “It’s not a one-year or two-year drought. In some areas we’ve seen it has been going now for six years.”

The wildlife industry generates revenue for South Africa through tourism, hunting, breeding and meat production. Trophy hunting alone generated 2 billion rand ($140 million) in 2016, according to research carried out for the environment ministry.

Southern Africa’s temperatures are rising at twice the global average rate, according to the International Panel on Climate Change, and in much of South Africa the level of water in reservoirs is reducing.