Monarch Butterflies Will Go Extinct if We Don't Take Action Now
28.06.2023 - 11:47
/ treehugger.com
Monarch butterflies perform one of the most mind-bending feats in the animal kingdom. Weighing just half a gram, they fly on wafer-thin wings through cities and across interstates, migrating up to 2,800 miles from Canada and the United States to their wintering grounds in the forests of Mexico.
They grace our gardens with delight along the way and perform pollinating services that include contributions to healthy ecosystems and support for agricultural food production.
Yet they have been in perilous decline over the years—and despite the efforts of many, without more people getting on board, we run the risk of losing them altogether.
«In just one year, the presence of monarch butterflies in their wintering grounds [in Mexico] dropped 22%, from 7 acres to nearly 5.5. acres. This is part of a mostly downward trend over the past 25 years—when monarchs once covered more than 45 acres of forest,» reports World Wildlife Fund (WWF).
The U.S. sees two types of migrating monarch butterflies, those in the east that fly from Canada to Mexico and those in the west that migrate down the Pacific coast to winter in California. It was long believed that the eastern and western monarchs were genetically distinct populations. But now scientists have confirmed that they are genetically the same. The journal Molecular Ecology published the findings, led by evolutionary biologists at Emory University.
This is just one of the findings from WWF-Mexico and Mexico’s National Commission of Natural Protected Areas' annual monarch count. They have released two new reports related to the population and winter habitat of the Eastern migratory monarch butterfly, explains WWF. «The first shows a continued population decline and the second report
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