AMERICANALMANAC (Sadie Smith) - Dragonfly swarms fill California skies by the thousands, and experts say they're doing residents a favor
Massive swarms of dragonflies have descended on California's Bay Area this summer, filling parks and waterfronts with hundreds of the insects, and scientists say the surge is driven by an abundance of mosquitoes. Residents across San Francisco and Oakland have reported skies thick with dragonflies in recent weeks, with the insects spotted in such numbers […] The post Dragonfly swarms fill California skies by the thousands, and experts say they're doing residents a favor appeared first on American Almanac .
Massive swarms of dragonflies have descended on California's Bay Area this summer, filling parks and waterfronts with hundreds of the insects, and scientists say the surge is driven by an abundance of mosquitoes. Residents across San Francisco and Oakland have reported skies thick with dragonflies in recent weeks, with the insects spotted in such numbers that some have been observed mating on top of people's hats. The swarms have appeared at Lake Merritt in Oakland, along the Russian River near Guerneville, and at Dolores Park in San Francisco, the Daily Mail reported . Chris Grinter, the senior collection manager of entomology at the California Academy of Sciences, pointed to a straightforward explanation for the boom. He told SFGATE: …Open