MaryAnn Lepp has observed a significant increase in monarch butterflies undergoing their transformative process in her garden, with 20 caterpillars spotted feeding on her swamp milkweed in just one day this week. She is part of a larger group of Canadian monarch enthusiasts who are witnessing a surge in backyard milkweed patches thriving due to the wet and hot conditions in certain Prairie regions this summer.
Expressing her excitement, Lepp points out the emergence of the second chrysalis in her garden in La Broquerie, located about 60 kilometers southeast of Winnipeg. She notes that there has been a noticeable rise in butterfly sightings compared to previous years.
While conservation experts cannot definitively attribute the surge to favorable weather conditions, they acknowledge the positive impact it has had on the federally endangered species. Reports of caterpillars, chrysalises, and monarch butterflies flooding social media groups like Manitoba Monarch Mission indicate a promising trend for the species.
Marika Olynyk, curator of the Living Prairie Museum, notes a substantial increase in monarch sightings in Winnipeg this year, with a consistent presence of caterpillars, chrysalises, and butterflies throughout the summer. The museum’s tall grass prairie preserve offers a variety of native plants that attract pollinators, including different milkweed species favored by monarch butterflies.
Despite efforts by individuals like Lepp to plant milkweed and native wildflowers, these plant populations remain significantly reduced due to habitat loss caused by the conversion of native grasslands to farmland. Olynyk emphasizes that habitat loss poses the most significant threat to monarchs, highlighting the urgent need for conservation measures.
The endangered status of monarch butterflies led to calls for increased protection, resulting in the species being classified as endangered in 2016. The federal government followed suit in December 2023, making it illegal to harm or capture monarchs on federal lands at any stage of development.
While the current population of monarchs remains below sustainable levels, ongoing efforts to raise awareness and conservation initiatives are crucial. Laura Burns, conservation programs manager at Assiniboine Park Zoo, reports a surge in monarch numbers at the native prairie garden and highlights the conservation efforts for the critically endangered Poweshiek skipperling butterfly.
Despite facing significant challenges, conservation efforts, including breeding and release programs, offer hope for the Poweshiek skipperling’s survival. Burns emphasizes the positive impact of these initiatives and suggests that favorable weather conditions this year have benefited not only monarchs but potentially other butterfly species as well.
As part of a Canadian Wildlife Service project, zoo staff will be tracking monarchs’ migration south to Mexico by attaching radio transmitters to adult butterflies this fall. Dedicated enthusiasts like Epp continue to play a vital role in safeguarding caterpillars and chrysalises to ensure the survival and flourishing of these delicate creatures.