Download green glow worm1/22/2024 ![]() ![]() ![]() Evidence from 217 sites shows the butterfly was historically common across the prairies of the upper mid-western US. In the US, scientists compiled sightings of the endangered Poweshiek skipperling butterfly from 1872 to now, showing that its geographic range has shrunk dramatically over time. Many report declines in some – but not all – insects. The glow-worm research was one of a dozen studies published in a special issue of Insect Conservation and Diversity. Wouldn’t it be sad if there weren’t these things any more?” It was just magical, and every summer I still get a pang of excitement on seeing the first one. “I still remember when I saw my first one. Gardiner emphasised the intrinsic wonder of glow-worms. Widespread insect declines threaten a “ catastrophic collapse of nature’s ecosystems”, with dire consequences for humanity, some scientists have said. They acknowledge that little is known about most of the estimated 5.5 million insect species but said enough was understood to warrant immediate action. ![]() Scientists warned in February that “ fates of humans and insects are intertwined”, with the huge declines reported in some places only the “tip of the iceberg”. “If they decline like they have declined for the last 18 years, then in another 18 years there are going to be a lot more extinctions,” said Gardiner. The scientists accounted for changes in weather and the earlier emergence of the glow-worms as the climate heats up to calculate the trend over time. “A lot of people are just recording one or two glow-worms when they go out,” Gardiner said. This is the first study to provide hard data on long-term changes in the glow-worm populationThe research, published in the journal Insect Conservation and Diversity, used data collected by citizen scientists during nighttime walks in June, July and August each year. ![]()
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