The study relied on 17 years of data from more than 2,600 citizen scientist observations of monarch roosts along the butterfly’s migration route. The researchers found that roost sizes have ...
Migratory species like the monarch butterfly present unique conservation challenges. Their populations face myriad threats across different geographic areas, often far removed from each other. As ...
A review of 26 years of data on the western monarch butterfly population shows that a significant number are found in California state parks. Since the annual Western Monarch Count began in 1997, ...