Conservation News

IUCN lists monarch butterflies as endangered

The International Union for Conservation of Nature has listed monarch butterflies as endangered due to steep declines experienced over the past decade. Monarchs (Danaus plexippus), which migrate from the United States and Canada to Mexico

FYI News

Mexico monarch numbers rise

Mexico saw 35% more monarch butterflies arrive to its mountain forests last winter than the previous year. Experts say the rise may be due to butterflies adapting to rising temperatures and drought. Rather than counting

Dana Kobilinsky

Deadly parasite has increased in monarchs

A parasite that kills monarch butterflies is increasing in prevalence, possibly contributing to population declines. Ophryocystis elektroscirrha, or O.E. for short, gets into the gut of monarch (Danaus plexippus) caterpillars. The protozoan parasite can stop

Dana Kobilinsky

Mice make a meal out of monarchs

Western harvest mice in California may be feeding on monarch butterflies overwintering there, providing just another reason why conserving the declining insect species may benefit the ecosystem. Monarchs aren’t palatable to most predators. The butterflies

Conservation News

Even captive monarchs migrate south

Eastern monarch butterflies kept in captivity still migrate south when they’re released. That could be good news for butterfly-rearing hobbyists and classrooms that raise monarchs as a learning opportunity. Researchers made this discovery as a

Conservation News

Eastern monarchs need more milkweed

Current conservation measures for monarch butterflies may be falling short, say researchers who created a model to analyze how the butterflies are faring. Rodrigo Solis-Sosa, a veterinarian and PhD candidate at Simon Fraser University, first