The number of monarch butterflies wintering in Mexico dropped by 27% this year, reversing last year’s recovery from historically low numbers...More at The Guardian.
The experts say the decline could be due to late winter storms last year that blew down more than 100 acres (40 hectares) of forests where migrating monarch butterflies spend the winter in central Mexico...
Last week, authorities detained a man trying to truck about a dozen huge tree trunks out of the butterfly reserve, using false papers asserting the trees were diseased and were being removed to reduce risk. In fact, investigators found the trees had been healthy...
The loss of forests in Mexico and milkweed north of the border has proved devastating. This year the butterflies covered only 7.19 acres (2.91 hectares). Last year, the butterflies covered 10 acres (about 4 hectares), compared with 2.8 acres (1.13 hectares) in 2014 and a record low of 1.66 acres (0.67 hectares) in 2013. That is still well below the 44 acres (18 hectares) they covered 20 years ago.
12 February 2017
Overwintering Monarch population down