Thailand is set to start administering birth control to a limited number of wild female elephants this year, as the nation grapples with the escalating issue of human-elephant conflict. Asian elephants have been listed as endangered since 1986, but Thai officials report that conservation initiatives have led to an annual population growth of 8%, putting pressure on the already strained forests. This increase has resulted in elephants venturing into populated areas, leading to damage to agriculture, property, and even fatalities.
The plan to implement birth control has sparked controversy, with some advocates expressing concerns over insufficient research into the long-term effects on the elephants. Contraceptives have previously been utilized on wild African elephants in South Africa. Last year, a trial using the birth control method SpayVac was conducted on seven domesticated Thai elephants, and officials noted no adverse effects. The contraceptive will be delivered to wild elephants via dart injection, typically targeting large muscle areas like the hip or front leg.
Dr. Supakit Vinitpornsawan, director of the wildlife assistance center at the Department of National Parks (DNP), stated that approximately 20 wild female elephants that have already given birth will receive the birth control, which is effective for seven years. Veterinarians will closely monitor these elephants, checking their physical health and hormone levels through blood samples. The goal is to ensure hormone stability over the seven-year period and to assess any long-term impacts on the elephants.
The intention is not to completely halt reproduction but to temporarily pause it in certain individuals, complementing other strategies to mitigate human-animal conflict. Supakit emphasized that administering birth control to elephants is a sensitive matter, given their endangered status and cultural significance in Thailand, where elephants are regarded as a national symbol.
Thailand is home to approximately 4,422 wild elephants, with about half residing in five forest regions that have become increasingly congested due to population growth. The Eastern Forest complex, spanning five provinces in eastern Thailand, is particularly affected, surrounded by agricultural land and industrial development.
As human populations expand into forested areas, the traditional habitats of elephants are fragmented, disrupting their access to essential resources. For communities living in these regions, coexistence with elephants is a precarious and often perilous challenge. Conflicts between humans and elephants can lead to significant financial losses for people and can be distressing or even fatal for both species. Last year, there were 4,700 reported incidents involving elephants from the Eastern Forest, resulting in 19 human fatalities, along with numerous cases of agricultural damage and property destruction.