Researchers lure Manitoulin Island turtle predators with decoy

Researchers at Laurentian University are hoping a fake turtle will shed some light on a mystery on Manitoulin Island.

Jackie Litzgus, a biology professor atLaurentian University, saida decoy BlandingsTurtlewill be used to determine whichpredators might be killing turtles.

Last year dozens of dead turtles were discoverednear Misery Bay on Manitoulin Island.

Litzgussaid the most likely culprit is some kind of predator. By using a turtle decoy, along with game cameras, researchers hope to capture video of what may be killing the turtles.

"It is a perfect mimic of a BlandingsTurtle," said Litzgus, describing the decoy. "It feels like a Nerf football. It's surprisingly foamyand light."

Litzgus said the decoy smells like foam, so it may not be effective in attracting mammals that use their sense of smell,such as weasels and mink.

But visual predators, such as ravens and crows, may be lured in by the decoy while circling above, she noted.

Road kill remains a major threat to turtles

Litzgus joked that they may possibly witnesspeople interacting with the decoy.

But she doesn't believe humans are responsible for the dead turtles.

"One of the threats to turtles is when they are collected by poachers for food and the pet trade," Litzgus said.

But in the case of the dead turtles on Manitoulin Island, all of the carcasses were left behind.

Litzgus saidturtle decoys have been used in the past for a different reason.

They were used in one study that showed threeper cent of motorists swerved their vehicles to intentionally run over decoy turtles. Road kill remains a major threat to turtles in North America.

Litzgussaid she believes this is the first time a turtle decoy has been used in a field study of this kind.

"I'm excited to see what the field cameras will show."