Habitat loss in US is cause in monarch butterfly decline
The main cause of declines in the monarch butterfly population is loss of habitat in breeding grounds in North America, particularly the U.S. Corn Belt, says research by the University of Guelph. The study says large-scale farming contributed to a 21 percent drop in milkweed plants from 1995-2013. Monarch caterpillars feed on milkweed before becoming butterflies.… » Read More
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