Kenya is losing an average of 100 of its 2,000 lions each year because of growing human settlements, increasing farming, climate change and diseases, according to the Kenya Wildlife Service (KWS). "Lions have a special place in Kenyans' life," said Paul Udoto, a spokesman for the organization.  "Other than being the symbol of national strength, they are among the Big Five, a main attraction for visitors to Kenya." There were 2,749 lions in Kenya in 2002 and their population dropped to 2,280 by 2004 and to about 2,000 today, according to KWS figures. "The fall of the lion population is worrying and every effort needs to be made to make sure that Kenya either protects its population of 2,000 lions at present or increases the numbers to an ecologically   acceptable level," said Mr. Udoto. "There is no doubt that the numbers are in free fall. I'd be surprised if they even last as long as 20 years," said Laurence Frank, project director of Living With Lions, a Kenya-based animal protection organization. "When I first came here 30 years ago, I would always hear lions roaring across the land at night and see their tracks in the morning. Now that is very rare." "The reason is simple. As the numbers of people grow and the numbers of cows increase, they take up much of the lion's space. Alongside that there are other ways, including poisoning, to kill lions." Animal lovers are making a new strategy to save the animals. Part of the measures will include tracking lions fitted with radio collars   in the Amboseli area in southern Kenya, close to the border with Tanzania. Wildlife officials in Tanzania face similar challenges in protecting their lions, but there is far less human encroachment  on the animals' homeland there than in Kenya. The lion population is falling in Kenya for the following reasons EXCEPT   _  .
climate change too many visitors disease human activities