The Prince of Wales has paid tribute to pioneering elephant conservationist Iain Douglas-Hamilton, who died aged 83 at his home in Nairobi on Monday.

Douglas-Hamilton spent his life studying and campaigning to protect African elephants, becoming a world-leading expert on their behaviour in the wild.

His groundbreaking research exposed the devastating effects of poaching - often at great risk to his own safety - and was instrumental in the banning of the international ivory trade.

Prince William praised the zoologist as 'a man who dedicated his life to conservation and whose life's work leaves lasting impact on our appreciation for, and understanding of, elephants'.

The memories of spending time in Africa with him will remain with me forever, added Prince William, who is a royal patron for the African wildlife conservation charity, Tusk, of which Douglas-Hamilton was an ambassador.

The world has lost a true conservation legend today, but his extraordinary legacy will continue, the charity's founder Charles Mayhew said in a statement.

Born in 1942 to an aristocratic British family in Dorset, England, Douglas-Hamilton studied biology and zoology in Scotland and Oxford before moving to Tanzania to research elephant social behaviour.

At Lake Manyara National Park, he began documenting every elephant he encountered, eventually recognizing herds by the unique shapes of their ears and wrinkles on their skin.

Friend and fellow conservationist Jane Goodall, praised his work, stating he had shown the world that elephants are capable of feeling just like humans.

Throughout his career, Douglas-Hamilton faced many dangers, including being charged by elephants and shot at by poachers. Yet, he remained steadfast in his mission to raise awareness of the plight of African elephants and campaigned for an international ban on the ivory trade.

Following significant advocacy, an agreement was signed in 1989, and later efforts in 2015 led to near-total bans on ivory trade in key markets like China and the US.

Douglas-Hamilton established Save the Elephants in 1993, a charity focused on safeguarding elephants and enhancing human understanding of their behavior.

He is survived by his wife Oria, children Saba and Dudu, and six grandchildren.