Tiger sounds to protect wild population
Print Edition
TIGERS use a grunt-like snort called chuffing as a greeting, short roars for intimidation and long roars to find mates.
Researchers are now trying to use those and other sounds tigers make to help protect and boost their population in the wild.
The effort, called The Prusten Project, is the idea of Courtney Dunn, who currently works at the Dallas World Aquarium as a senior mammal keeper and has a master’s degree in biology. Prusten is another word for chuffing.
“What we have discovered with our research is that tiger voices can be used like a fingerprint for individuals, like a vocal fingerprint as unique as you and I,” Dunn said.
The first part of the project involves using digital devices to record Bengal, Malayan, Sumatran, and Amur tigers at zoos across the nation.
Ten zoos have already recorded tigers with at least another 10 planning to do so.
Project officials are using those recordings to build a computer program to help identify specific tigers and determine more accurate population numbers so that organizations know where to focus their protection efforts. They can also listen in to see if any poaching activity is occurring.
Dunn says they also can distinguish between male and female sounds and knowing that information will tell them if there is a healthy breeding population.
The project is being paid for through the American Association of Zookeepers and various zoological institutions throughout the country. The University of Central Arkansas provided the initial grants, which purchased the first recorders. Dunn said project members plan to begin using the digital audio recorders in the wild next year in India.
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