The population of endangered monarch butterflies wintering in Mexico’s Michoacan dropped by 22% in just one year.
Monarch butterflies are considered one of the world’s oldest and most resilient species. Their life cycles depend on optimal conditions: temperatures between 55 and the low 70s when they migrate, an abundance of milkweed when they mate, and some rain during the winters.But climate change has scrambled
in last week’s report. “With 80% of agricultural food production depending on pollinators like monarchs, when people help the species, we are also helping ourselves.”is a UNESCO World Heritage site and is considered the prime location for the monarchs. They are able to cluster in the dense forests of the nearly 140,000-acre reserve and shelter from winds, rain and low temperatures.The population of butterflies is calculated by the number of acres they cover when gathered on tree branches.
Some conservationists think that loss of habitat in Mexico is leading many of these eastern monarch butterflies, which reside in the northeast United States and southern Canada, to winter instead along the West Coast of the United States. More thanAdvertisement
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