This weeks Hump Day Happy via DaveTheHappySinger
Cane toads were a bad idea. A very bad idea. An insanely bad idea. But anyway, Australia is now stuck with rampaging toxic amphibians threatening almost all our native wildlife. Amongst those threatened are native carnivores. Aside from birds and snakes, there is a whole range of little superficially rodent-looking marsupials, and quolls.
Quolls are awesome. Just from having an awesome name like “Quoll” (and providing more ‘q’ words in scrabble). They aren’t wimpy like “possums” and “sugar gliders”, these critters eat MEAT. Sadly, toads are made from meat, so quolls will naturally try to to eat toads. And then they die. Which is sad.
So the happy news at ABC is that scientists at University of Sydney have been successfully training small groups of quolls to resist the urge to eat cane toads using aversion therapy. The quolls were exposed to small toads sprayed with a nauseating compound which made trying to eat the delicious grenouilles quite unappealing.
“The toad was hopping around. It looked like something good to eat, but once they sniffed it they got that signal saying, ‘Hey, we’re not good to eat’ and they ignored it.” – Dr. Jonathan Webb
A video of the training process is also up on the ABC.
When released into the wild and monitored, trained quolls had higher survival rates than untrained quolls.
The scientists hope that toad training can be initiated ahead of the toad invasion front, so that by the time the toads reach that area the quolls (and other animals) no better than to try and eat one.
The actual scientific article can be found at the Journal of Applied Ecology (you’ll need a Wiley InterScience subscription) DOI: 10.1111/j.1365-2664.2010.01802.x