MaryAnn Lepp was amazed to witness an increase in the number of monarch butterflies undergoing their transformative journey in her garden. She observed 20 caterpillars feasting on her swamp milkweed in just one day this week, joining numerous Canadian monarch enthusiasts who are seeing a surge in backyard milkweed patches across the Prairie region due to favorable wet and hot conditions this summer.
Expressing her excitement, Lepp mentioned finding the second chrysalis in her garden in La Broquerie, located about 60 kilometers southeast of Winnipeg. She noted a higher presence of butterflies this year compared to previous years.
While conservation experts cannot definitively attribute the surge to weather conditions, they acknowledge the positive impact on the federally endangered monarch butterfly species. Reports of caterpillars, chrysalises, and adult monarch butterflies are on the rise, signaling a promising development for the species known for its annual migration between Canada and Mexico.
Marika Olynyk, curator of the Living Prairie Museum, remarked on the abundant presence of monarchs in Winnipeg this year, with consistent sightings of caterpillars and butterflies throughout the summer. The museum’s tall grass prairie preserve, hosting various native plants that attract pollinators, including different milkweed species, serves as a crucial habitat for monarch butterflies.
Despite efforts by individuals like Lepp to plant milkweed and native wildflowers, these resources remain scarce due to historical habitat loss resulting from the conversion of native grasslands into farmland. Olynyk emphasized that habitat loss poses the most significant threat to monarchs, as the destruction of tallgrass prairies has significantly impacted their population.
The Committee on the Status of Endangered Wildlife in Canada classified monarchs as endangered in 2016, recognizing the urgent need for conservation measures. The federal government later enforced legal protection for monarchs in December 2023, making it illegal to harm or capture them on federal lands at any stage of development.
Monarch numbers have also shown a positive trend at the Assiniboine Park Zoo, particularly benefiting a critically endangered butterfly species, the Poweshiek skipperling. The zoo’s conservation efforts, including breeding and releasing Poweshiek skipperlings, offer hope for the species teetering on the brink of extinction.
As monarch enthusiasts and conservationists continue their efforts to protect these iconic butterflies, ongoing monitoring and conservation initiatives aim to ensure the survival and recovery of monarch populations for future generations.