Milkweed losses may not fully explain monarch butterfly declines

Monarch butterfly declines cannot be attributed merely to declines in milkweed abundance, researchers report. The new research reviews decades of studies of monarchs and includes an in-depth analysis of milkweed populations at the heart of the butterflies' summer range.

Science Daily

Last updated on 15 March 2017

Type: 
Media Watch
Country: 
Canada
Mexico
United States of America
Region: 
North America
Threats: 
Habitat loss and degradation
Species: 
Danaus plexippus