Montreal boroughs pledge to help Monarch butterflies - Action News
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Montreal

Montreal boroughs pledge to help Monarch butterflies

The Mayors Monarch Pledge program unites 150 municipalities around North America that have introduced concrete measures to help the migrating butterfly, whose population has plummeted by 90 per cent in the last 20 years.

Saint-Laurent and Rosemont-La Petite-Patrie join North America-wide effort to save migrating butterfly

The Monarch butterfly population has dropped by 90 per cent over the last 20 years and scientists are scrambling to save it. (Matthew Beck/The Citris County Chronicle/Associated Press)

The Montreal boroughs of Saint-Laurent and Rosemont-La Petite-Patrie have officially joined the ranks of municipalities around North America that are trying to save the Monarch butterfly from disappearing.

The "Mayors' Monarch Pledge" program unites 150 municipalities around North America that have introduced concrete measures to help the migrating butterfly, whose population has plummeted by 90 per cent in the last 20 years.

The move formalized efforts that the borough of Saint-Laurent has been undertaking over the last seven or eight years, said mayor Alan DeSousa.

"For example, we've introduced the planting of milkweed in our municipal parks," he said.

Milkweedis the plantof choice for Monarch butterflies when it comes to laying their eggs and serves as an important food source for their larvae.

The urban prairie next to the Bois Library in the Saint-Laurent borough may look unkempt but is purpose-built for Monarch butterflies. (Anne-Louise Despatie/Radio-Canada)
Urban prairies are another way municipalities are helping the Monarch butterflies. One can be found around the Bois Library in Saint-Laurent. Far from haphazard or unkempt, the prairies are cultivated to include plants like milkweed and nectar-producing flowers that Monarch butterflies need to survive.

Milkweed: Far fromjust a weed

The David Suzuki Foundation has also provided borough residents with 3,500 milkweed plants and 12,000 bags of seed.

"We're finding less and less milkweed in agricultural fields, where Monarch butterflies prefer to lay their eggs," said Louise Henault-Ethier, who heads up the scientific projects division of the David Sukuzi Foundation.

"We have to preserve [milkweed], which has long been seen as a nothing but a weed."

Milkweed is essential to the survival of Monarch butterflies, whose larvae feed on the plant. (Grant Ford)
Montreal's Insectarium is also part of a Canada-wide research project workingto map the presence of Monarch butterflies and the known locations of milkweed.

People across Canada are invited to submit their observations at Monarch-mission.org

"We want to know where they're reproducing and when, so we can be strategic in our conservation efforts and help their population grow," said entomologist Maxime Larive, the head of research and collections at the Insectarium.

Based on a text by Radio-Canada's Anne-Louise Despatie