News Round-Up

New study on migration success reinforces need for monarch butterfly milkweed habitat


A recently published analysis of data on tagged monarch butterflies migrating from the United States to Mexico emphasises the importance of creating new habitat to ensure the future of the species’ iconic migratory pattern.

The study, published this month in the peer-reviewed journal Frontiers in Ecology and Evolution, drew on data collected on 1.4 million monarch butterflies that were tagged in the United States Midwest from 1998 to 2015. The study presents evidence that the migration success of monarchs hasn’t declined and thus cannot explain the steep decline in the monarch population over the last few decades. MORE