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Keeping hungry jumbos at bay

Until now electric fences and trenches have proved to be the most effective way of protecting farms and villages from night time raids by hungry elephants. But researchers think they may have come up with another solution – the recorded sound of angry predators.

The research carried out in southern India by Dr Vivek Thuppil at The University of Nottingham Malaysia Campus (UNMC) and Dr Richard G Coss from the University of California, Davis has been published in Oryx – The International Journal of Conservation.

Using an infrared sensor playback system elephants triggered the sound of growling tigers, leopards and angry shouts of villagers as they approached farmers’ fields. In 41 attempted raids, tiger sounds stopped 90 per cent, the sound of leopards deterred 73 per cent and human shouts prevented 57 per cent.

Dr Thuppil said: “This technique was tested using static devices. Although the elephants shied away from the specific area they would eventually find another way into the field. So static recordings like this would work in locations where there is a narrow path of entry to farmland.

“Now I am interested in investigating how an elephant would respond to threatening sounds if they were not emanating from a stationary source. To accomplish this, there would be a network of speakers and an intruding elephant’s location would be tracked continuously with only the speaker nearest the elephant being activated. This would simulate persistent tracking of an elephant by a predator.”

Human-elephant conflict

Elephants live off roots, grasses, fruit and bark and the Earth’s largest land mammal needs to consume over 130 kilograms of food in a single day to satisfy its huge appetite. As the Asian elephant’s natural habitat is squeezed to make way for agriculture, new roads and development, conflict between elephants and humans is an increasing problem. 

The researchers tested two infrared systems, one that was more complex and realistic, and one that was simple enough for farmers to set up around their fields. Both were effective in deterring elephants. But it seems an elephant never does forget, and those that encountered the noises more than once were less likely to be fooled.

Dr Thuppil’s research interests are in evolutionary psychology. His PhD at University of California, Davis was in the field of animal behaviour and he moved to the School of Psychology at UNMC last September. He is particularly interested in how basic research can promote applied causes such as wildlife conservation or sustainability.

New collaboration

Dr Thuppil will be collaborating with MEME (the Management and Ecology of the Malaysian Elephant) – a research project at UNMC led by Dr Ahimsa Campos-Arceiz. 

MEME, together with Perhilitan, Malaysia’s Department of Wildlife and National Parks, are fitting wild elephants with specially designed collars packed with satellite and cell phone technology. The aim is to learn more about the Asian elephant, and crucially how to mitigate the growing problem of human-elephant conflict. 

Watch the Video

UNMC's 15th Anniversary

One of the world's truly global universities, with campuses in Malaysia, the UK and China, 2015 marks the 15th year since setting up as UK's first full-fledged international campus in Malaysia and all three campuses continue to enrich the lives of students across the world through global education, ground-breaking research and community engagement. 

(Video credit: Vivek Thuppil and Richard Coss).


More information is available from Dr Vivek Thuppil on+60 (11) 1280 3955, Josephine Dionisappu, PR & Communications Manager at The University of Nottingham Malaysia Campus on +6(03) 8924 8746, or Lindsay Brooke, Media Relations Manager at the University of Nottingham, UK on

Notes to editors:  The University of Nottingham has 43,000 students and is ‘the nearest Britain has to a truly global university, with campuses in China and Malaysia modelled on a headquarters that is among the most attractive in Britain’ (Times Good University Guide 2014). It is also one of the most popular universities in the UK among graduate employers, in the top 10 for student experience according to the Times Higher Education and winner of ‘Research Project of the Year’ at the THE Awards 2014. It is ranked in the world’s top one per cent of universities by the QS World University Rankings, and 8th in the UK by research power according to REF 2014.

The University of Nottingham Malaysia Campus (UNMC)is holding events throughout 2015 to celebrate 15 years as a pioneer oftransnational education. Based in Semenyih, UMNC was established as the UK'sfirst overseas campus in Malaysia and one of the first world-wide.

Impact: The Nottingham Campaign, its biggest-ever fundraising campaign, is delivering the University’s vision to change lives, tackle global issues and shape the future. 

Posted on 7th April 2015

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