MaryAnn Lepp has observed a significant increase in monarch butterflies undergoing their remarkable transformation in her garden, with as many as 20 caterpillars feasting on her swamp milkweed in just one day this week. This surge in backyard milkweed patches thriving amidst wet and hot conditions on parts of the Prairie this summer is being witnessed by numerous Canadian monarch enthusiasts.
Excitedly scanning her garden in La Broquerie, approximately 60 kilometers southeast of Winnipeg, Lepp remarks, “This is chrysalis No. 2… I’m so thrilled.” She notes the higher presence of butterflies this year compared to previous years.
While conservation experts cannot definitively attribute the surge to favorable weather conditions, they acknowledge the abundance of anecdotal reports of caterpillars, chrysalises, and monarch butterflies as a positive sign for the federally endangered species. Marika Olynyk, curator of the Living Prairie Museum, reports a substantial presence of monarchs in Winnipeg this year, with a steady occurrence of caterpillars, chrysalises, and butterflies throughout the summer.
The tall grass prairie preserve in Winnipeg boasts various native plants that pollinators favor, including multiple milkweed varieties. Monarch butterflies primarily feed on nectar from milkweed flowers, although they also consume nectar from other flowering plants like the meadow blazing star at the prairie museum. However, monarch caterpillars are selective and solely feed on milkweed leaves.
Despite efforts by individuals like Lepp to plant milkweed and native wildflowers, their availability remains limited compared to historical levels due to the conversion of native grasslands to farmland. Habitat loss poses the most significant threat to monarchs, with Olynyk emphasizing the critical role of tallgrass prairies in their survival.
The monarch was designated as an endangered species in 2016 by the Committee on the Status of Endangered Wildlife in Canada, prompting calls for enhanced protections. The federal government followed suit in December 2023, making it illegal to harm or capture monarchs at any developmental stage on federal lands.
Current estimates indicate that the monarch population is only at 50% of a sustainable level, underscoring the ongoing need for conservation efforts. Monarch numbers have also seen an increase at the Assiniboine Park Zoo’s native prairie garden, with conditions proving favorable for other endangered butterfly species like the Poweshiek skipperling.
The zoo is actively involved in breeding and releasing Poweshiek skipperlings to support their population recovery. This summer has shown promising signs of progress, with increased sightings of Poweshiek skipperlings in previously unobserved areas. The impact of weather trends on butterfly populations, including monarchs and Poweshiek skipperlings, is also being noted.
Looking ahead, zoo staff will be aiding monarchs by fitting adult butterflies with radio transmitters to track their migration south to Mexico. Enthusiasts like Epp remain dedicated to safeguarding caterpillars and chrysalises, emphasizing the importance of conservation efforts in preserving our planet and fostering a harmonious relationship with nature.
By: Professional News Content Writer