Butterfly Migration, California, Painted Ladies
A Painted Lady butterfly rests on a lupine flower near the historic YorbaÐSlaughter Adobe in Chino on Thursday, March 7, 2019. (Photo by Watchara Phomicinda, The Press-Enterprise/SCNG)

We all love butterflies but they were not seen for a long time. They migrate every year from the desert of southern California to Pacific Northwest. However many people do not notice the migration but this year, migration has come into the picture and people are amazed to see so many painted ladies flying around. This year these painted ladies are grown in a significant number. The reason for their growth is said to be wet winters and heavy rainfalls. Thanks to the desert as they provide the perfect place for them to lay their eggs.

“In 2005, we had a similar outbreak,” professor of evolution and ecology at the University of California, Davis, Arthur M. Shapiro, told the Gate. He estimated the population at around a billion.

“They arrived here on March 11. I thought it would have been great fun if they arrived here on March 11 again, but they didn’t,” he said. It is estimated that the numbers will be similar to the outbreak of 2005. Everyone is enjoying this heavenly butterfly effect.

Shapiro who is the professor of evolution and ecology at the University of California said, “Substantial rainfall in the deserts near the Mexican border, where the North American painted ladies lay their eggs, is the reason for the unusually large swarms. The rain caused plants to thrive, giving the painted lady caterpillars plenty of food to fuel their transformation”


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