Friday, July 19, 2024

Why Are We Seeing So Few Monarch Butterflies?

 

Monarch butterflies are not being seen and it's mid-July

Why Are We Seeing So Few Monarch Butterflies?

Have you noticed that there are fewer Monarch butterflies fluttering around these days? You're not alone, and there's a good reason for it. Monarchs need a vast, healthy migratory path and large, robust forests to survive the winter. Unfortunately, these crucial habitats are under threat.

The Challenges Monarchs Face

Monarch butterflies are facing a significant reduction in their breeding habitat in the U.S. due to herbicide use and changes in land use. Additionally, their wintering sites in Mexico are experiencing forest degradation, making it harder for them to survive the cold months.

A Rough Year for Monarchs

The year 2024 has been particularly tough on Monarchs. The ice storm in Texas in 2023 and the historic hot summer that followed have severely impacted their population. Reports from overwintering sites for the eastern population of Monarchs in Mexico show a staggering 59% decrease—the second lowest count in history. Meanwhile, the California population has dropped by 30%.

The Push for Protection

Back in 2014, there was a petition to list Monarchs under the federal Endangered Species Act. In December 2020, the U.S. Fish and Wildlife Service agreed that the listing was warranted but had to prioritize other actions on its National Priority List. The Monarch is now slated to be listed in 2024.

Expert Insights

Chip Taylor from Monarch Watch explains why we're seeing so few Monarchs: "When their numbers are low, it suggests that there are threats. The biggest threats Monarchs face are habitat loss and changes in weather patterns. Warmer temperatures negatively affect Monarch populations."

A Message from the WWF

The World Wildlife Fund (WWF) has also weighed in on the issue. During the 2023-2024 winter season, estimates showed that Monarchs occupied only 2.2 acres of central Mexico's forests—59% less than the previous year. This annual survey, conducted by WWF and its partners, is a key indicator of the Monarch population's status.

The Bigger Picture

Scientists believe that climate variations in the Monarchs' breeding areas in Canada and the U.S. have led to high temperatures and drought. These conditions have reduced the abundance of milkweed, the only plant where Monarchs lay their eggs. Additionally, land-use changes and the widespread use of herbicides have further contributed to the loss of milkweed and other nectar plants essential for adult Monarchs.

Call to Action

"Fewer Monarchs hibernating in their traditional forest habitat in Mexico greatly concerns all of us," said Jorge Rickards, general director of WWF Mexico. "It's critical that all communities, governments, non-governmental organizations, scientists, and others continue to strengthen our conservation and protection efforts to support the Monarch's unique migration."

This situation isn't just a random occurrence; it's a call to action. We need to intensify our conservation and restoration measures both inside and outside the Monarch Butterfly Biosphere Reserve to ensure these beautiful butterflies continue to grace our skies.