Eastern Monarch Declines, Occupied Smaller Acreage of Overwintering Grounds in 2022
Posted onEastern monarch populations saw a 22 percent decrease compared to last year, according to the annual survey released this week from World Wildlife Fund (WWF) Mexico. Monarch butterflies occupied 2.21 hectares, a drop from the 2.84 hectares they occupied last year. Because it is impossible to count each butterfly, the survey measures the area of […]