Butterfly effect: Scientists argue over monarch’s ESA status

By Michael Doyle | 07/12/2024 01:21 PM EDT

The Fish and Wildlife Service is considering federal protections for the beloved butterfly. But some biologists who study the monarch say the evidence doesn’t support listing.

Monarch butterflies.

Monarch butterflies are seen in an oyamel forest in March 2008 at the El Rosario sanctuary in Angangueo, Mexico. Luis Acosta/AFP via Getty Images

Monarch butterfly expert Orley “Chip” Taylor says the colorful insect is doing pretty well, all things considered.

Challenges, yes; the monarch has them, in spades. Population numbers are down, the climate is changing, and precious milkweed-rich habitat is getting harder to find.

But Taylor, an 86-year-old emeritus professor of ecology and evolutionary biology at the University of Kansas, is adamant that the Fish and Wildlife Service should not designate the monarch as threatened or endangered.

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“This butterfly is extremely resilient, is extremely redundant and has great replication possibilities,” Taylor said in an interview. “It does not meet the definition of being a threatened species.”

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