Monarchs and milkweed, a complex relationship
English
July 1, 2020
The monarch butterfly depends on milkweed to survive, the plant being the caterpillars’ only food source. It’s a system that seems really simple ‒...Read more
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milkweed
What’s the monarch’s favorite milkweed?
English
February 27, 2019
In North America there are over 90 species of milkweed, four of which are native to Québec. Are monarch butterfly females more attracted by certain...Read more
Two invasive plants mean two more threats to the monarch butterfly
English
July 21, 2016
Those threatening plants are vines with pale or dark mauve star-shaped flowers and are known as black swallowwort and European swallowwort; in Latin...Read more
A brand new way to help the monarch
English
June 8, 2016
Despite the upsurge in migratory populations noted last winter, saving the monarch is not a sure thing at this point. In the face of the threat, the...Read more
Monarchs Without Borders: Behind the scenes
English
August 19, 2015
Are you one of the many who’ve been filled with wonder at the transformation of the monarch butterfly? Observing the feeding activities of the...Read more
Monarch butterfly: is the glass half empty or half full?
English
February 3, 2015
The eagerly awaited figures came out last week. The monarch population in eastern North America went up by 69 percent compared to last year. There...Read more
The monarch migration: A disappearing phenomenon?
English
July 17, 2013
The monarch (Danaus plexippus) is the most recognizable butterfly species in the world. Its annual migration is unique: at the end of the summer,...Read more
