MaryAnn Lepp has observed a significant increase in the number of monarch butterflies undergoing their transformation in her garden. She spotted 20 caterpillars feasting on her swamp milkweed in just one day this week. This surge in backyard milkweed patches is being witnessed by numerous Canadian monarch enthusiasts, flourishing due to the wet and hot conditions on parts of the Prairie this summer.
The surge in caterpillars, chrysalises, and monarch butterflies is being celebrated by butterfly enthusiasts on social media groups like Manitoba Monarch Mission. While experts cannot definitively attribute the surge to favorable weather conditions, the increase is seen as a positive sign for the federally endangered species known for their annual migration between Canada and Mexico.
Marika Olynyk, curator of the Living Prairie Museum in Winnipeg, noted the abundance of monarchs this year. The museum’s tall grass prairie preserve hosts various native plants that attract pollinators, including different milkweed varieties. Monarchs primarily feed on milkweed leaves during their caterpillar stage, highlighting the importance of preserving native grasslands where these plants thrive.
Despite efforts by individuals like Lepp to plant milkweed and native wildflowers, these habitats are not as abundant or widespread as they once were due to land conversion for farming. Habitat loss remains a significant threat to monarch butterflies, emphasizing the need for conservation measures to protect their populations.
In recent years, there have been calls to elevate the legal protection status of monarchs to “endangered,” reflecting concerns about gaps in their conservation. The Committee on the Status of Endangered Wildlife in Canada officially listed the monarch as endangered in 2016, with the federal government following suit in December 2023 by making it illegal to harm or capture monarchs on federal lands.
While efforts are being made to support monarch populations, challenges persist, with only about half of the sustainable monarch population currently estimated to exist. Conservationists like Olynyk emphasize the importance of continued awareness and conservation actions to ensure the survival of monarch butterflies and other vulnerable species.
Laura Burns, conservation programs manager at Assiniboine Park Zoo, highlighted the positive developments for the critically endangered Poweshiek skipperling butterfly. Efforts to breed and release these butterflies are showing signs of progress, offering hope for their recovery. The combined impact of favorable weather conditions and conservation initiatives is benefiting not just monarchs but other butterfly species as well.
Looking ahead, conservation efforts will continue, with plans to track monarchs using radio transmitters during their migration south to Mexico. Enthusiasts like Lepp are dedicated to providing a nurturing environment for caterpillars and chrysalises, underscoring the importance of fostering a harmonious relationship with nature to protect these delicate creatures.
