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‘Absolutely Magical’: Southern California Sees Largest Painted Lady Migration Since 2005
"Everyone was posting about the butterflies all over Instagram," a woman told CBS Los Angeles Tuesday. "I saw so many, it was kinda like a swarm of them. It was pretty insane."
The butterflies are passing through as part of their yearly migration from the deserts of Southeast California to the Pacific Northwest, but this year they are doing so in numbers not seen since 2005, when they totaled around one billion.
"When they are scarce nobody notices them," University of California (UC) Davis ecologist Art Shapiro told The Los Angeles Times. "When they are abundant, everyone notices."
For Shapiro, who has been monitoring California's butterflies for almost 50 years, it's a welcome change. He only counted 25,200 Painted Ladies in 2018, down from 315,997 the year before, an alarming trend in a state that is seeing butterfly populations decline across the board.
But this year, that trend has reversed and then some.
"They were flying parallel to me, just bobbing along as I rode past the date palms," The Living Desert Zoo and Gardens Conservation Director James Danoff-Burg told The Los Angeles Times. "It was absolutely magical. I felt like a Disney princess."
The reason for the population's explosion has been California's unusually wet winter.
"The average annual rainfall in the Coachella Valley is 3 inches," Danoff-Burg said. "This year, we had 3½ inches on Valentine's Day alone."
The rain led to a desert wildflower bloom, giving the caterpillars more to eat and a greater chance of surviving. Anza-Borrego Desert State Park, for example, has reported excellent wildflower viewing this year, NBC News reported.
However, the Painted Lady rebound doesn't necessarily mean that other California butterflies will recover.
"They are a boom-bust species," University of Nevada, Reno ecologist Matt Forister told The Los Angeles Times. "In some ways, they are the most successful butterflies on the planet."
California's overall butterfly population reached historic lows in 2018. A monarch butterfly count found numbers of the iconic species were down 85 percent compared to the year before, and Forister said at least 20 other species were declining even faster than the monarch.
Scientists think land use and farming changes that lead to less open space and fewer butterfly-friendly plants, an increased use of pesticides and climate change could all be contributing to a decrease in butterflies.
"There is not one cause for the butterfly decline — that's not how population extinction happens," Forister said. "It's more likely a suite of factors that are pushing on all these species."
Painted Ladies, though, are tough.
"They can pace cars at 25 miles per hour," Shapiro told NBC News.
The butterflies travel north for as long as their fat reserves will take them, then pause to breed. The next generation continues the trip. The butterflies then migrate back south in the winter.
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‘Companies Should Not Be Allowed to Use Hazardous Ingredients in Products People Use’: Michelle Pfeiffer Speaks Up for Safer Cosmetics
The beauty products we put on our skin can have important consequences for our health. Just this March, the U.S. Food and Drug Administration (FDA) warned that some Claire's cosmetics had tested positive for asbestos. But the FDA could only issue a warning, not a recall, because current law does not empower the agency to do so.
Michelle Pfeiffer wants to change that.
The actress and Environmental Working Group (EWG) board member was spotted on Capitol Hill Thursday lobbying lawmakers on behalf of a bill that would increase oversight of the cosmetics industry, The Washington Post reported.
By Julia Conley
Scientists at the United Nations' intergovernmental body focusing on biodiversity sounded alarms earlier this month with its report on the looming potential extinction of one million species — but few heard their calls, according to a German newspaper report.
The climate crisis is a major concern for American voters with nearly 40 percent reporting the issue will help determine how they cast their ballots in the upcoming 2020 presidential election, according to a report compiled by the Yale Program on Climate Change Communication.
Of more than 1,000 registered voters surveyed on global warming, climate and energy policies, as well as personal and collective action, 38 percent said that a candidate's position on climate change is "very important" when it comes to determining who will win their vote. Overall, democratic candidates are under more pressure to provide green solutions as part of their campaign promises with 64 percent of Democrat voters saying they prioritize the issue compared with just 34 percent of Independents and 12 percent of Republicans.
President Donald Trump has agreed to sign a $19.1 billion disaster relief bill that will help Americans still recovering from the flooding, hurricanes and wildfires that have devastated parts of the country in the past two years. Senate Republicans said they struck a deal with the president to approve the measure, despite the fact that it did not include the funding he wanted for the U.S.-Mexican border, CNN reported.
"The U.S. Senate has just approved a 19 Billion Dollar Disaster Relief Bill, with my total approval. Great!" the president tweeted Thursday.