Outdoors

Study: Midwest farming linked to decline of monarch butterflies

A Monarch butterfly sits on a tree trunk at the Sierra Chincua Sanctuary in the mountains of Mexico's Michoacan state.  A study published in 2013 of the Monarch butterflies' winter nesting grounds in central Mexico shows that small-scale logging is more extensive than previously thought, and may be contributing to the threats facing the Monarch's singular migration pattern. (Marco Ugarte / Associated Press)
A Monarch butterfly sits on a tree trunk at the Sierra Chincua Sanctuary in the mountains of Mexico's Michoacan state. A study published in 2013 of the Monarch butterflies' winter nesting grounds in central Mexico shows that small-scale logging is more extensive than previously thought, and may be contributing to the threats facing the Monarch's singular migration pattern. (Marco Ugarte / Associated Press)

ENVIRONMENT — The Heartland is no longer the land of milkweed and honey for monarchs.

Study links farming methods in U.S. to rapid decline of Monarch butterflies
A new study published last week in the Journal of Animal Ecology said a change in farming practices in the Midwest of the United States that led to a rapid decline of milkweed, where monarch butterflies lay their eggs in the spring and summer, is tied to the marked decline in the number of the butterflies.
—Toronto Globe and Mail




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Rich Landers

Rich Landers’ Outdoors blog


Rich Landers writes and photographs stories for a wide range of outdoors coverage, including a Sunday feature section and a Thursday column. He also writes the Outdoors Blog.


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