BILLINGS, Mont. — President Donald Trump’s administration moved Wednesday to roll back protections for imperiled species and the places they live, reviving a suite of changes to Endangered Species Act regulations during the Republican’s first term that were blocked under former Democratic President Joe Biden.

The changes include the elimination of the Fish and Wildlife Service’s “blanket rule” that automatically protects animals and plants newly classified as threatened. Government agencies instead would have to craft species-specific rules for protections, a potentially lengthy process.

Environmentalists warned the changes could cause yearslong delays in efforts to save species such as the monarch butterfly, Florida manatee, California spotted owl and North American wolverine.

“We woul

See Full Page