Tue. Aug 9th, 2022

One of the most destructive and rapidly spreading invasive species on the continent has been found for the first time in a Canadian national park.

Wild pigs that tear up landscapes and eat everything from roots to bird eggs to deer are found regularly in Elk Island National Park east of Edmonton, Parks Canada says.

“Public observations and video observations from landowners confirm that there is at least one sonar (a sow and piglets) in the region that is known to enter the park on a regular basis,” said spokeswoman Janelle Verbruggen.

“The physical evidence of rooting and public observations suggests that there may also be another echo sounder.”

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Wild boar were brought to Saskatchewan and Alberta in the 1990s to help farms diversify. Some fled.

Wild pigs are shown in this image provided by Ryan Brook at the University of Saskatchewan, taken using a game camera.

Credit: Ryan Brook, University of Saskatchewan via The Canadian Press

About half of Saskatchewan’s 296 rural municipalities now have wild pigs, said Ryan Brook of the Canadian Wild Pig Research Project based at the University of Saskatchewan.

Their range spreads over nearly 800,000 square miles, mostly on the Prairies.

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In Alberta, pigs have been seen in 28 counties, said Perry Abramenko, who runs the Alberta government’s pig removal program.

“The number of reports received is increasing every year,” he said. “No one can come up with whether there are hundreds or thousands.”

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A hybrid of domestic and European wild boar, the animals can reach well over 150 kilos.

“They are the most successful invasive large mammal on the planet,” Brook said.

Their diet includes nesting birds, their eggs and nestlings, small mammals, amphibians and even the occasional deer. They eat fruits, seeds, leaves, stems, shoots, bulbs, tubers and roots.

The growth rate of wild pigs on the Prairies is called “an organic train wreck.”.

File / Global news

Pigs survive the winter by piling cattails up into caves, which Brook called “pigloos.”

“They tumble into wetlands and tear them up to make nests,” Brook said.

“They contaminate water with mud and pathogens, they destroy crops, they are a public safety risk, and they can transmit disease to humans, pets, livestock and wildlife.”

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A 2007 U.S. study suggested the pigs caused nearly $ 2 billion in annual injuries. Another study showed that streams with pig populations had 40 times more E. coli bacteria than streams without.

Pigs are hard to get rid of, said Abramenko, who works in the area just outside Elk Island.

“They are a real challenge to catch. They are very suspicious. ”

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After Abramenko’s team confirms a pig report, it sets up the bait with a remote-controlled camera. It can take weeks before an echo sounder is safe to return to the bait site.

When this happens, a coral is raised with a remote-controlled gate. The team uses the camera to see when the whole sounder is inside, then they drop the gate.

“It’s important to catch a whole sound and not have anyone on the wrong side of the gate,” Abramenko said. “Anyone who escaped would become more trapped.”

Hunting does not help, Abramenko added.

“As soon as there is any kind of hunting disturbance, they spread. They are attacking new areas. They become nocturnal. They become really careful with people and any fishing effort we put forward is reduced. ”

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Click to play video: 'Wild pigs and' organic train wreck 'for Canada, especially in Prairies: study'



Wild pigs an ‘organic train wreck’ for Canada, especially in the Prairies: study


Wild pigs an ‘organic train wreck’ for Canada, especially in the Prairies: study – 15 May 2019

Although Elk Island – a small park with 194 square kilometers of boreal forest and wetlands – is so far the only national park with wild pigs, others are likely to follow. Brook said Prince Albert National Park in Saskatchewan is likely to be the next.

“If there are no established wild pigs, it will be very soon,” he said.

Verbruggen said Parks Canada is looking for help from the Alberta government to eliminate the pigs.

“Parks Canada looks forward to working together on the common goal of preventing the establishment of wild boar in the area,” she said.

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The Alberta government has a program where people can report wild boar sightings. Those who see a wild boar, dead or alive, are asked to safely take a picture and note the location. They are then asked to email af.wildboar@gov.ab.ca or call 310-3276 (Farm).

© 2021 The Canadian Press

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