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Perspectives from an old dude.
Of the scant records that do exist, many come from amateur naturalists, whether butterfly collectors or bird watchers. Now, a new set of long-term data is coming to light, this time from a dedicated group of mostly amateur entomologists who have tracked insect abundance at more than 100 nature reserves in western Europe since the 1980s.
Over that time the group, the Krefeld Entomological Society, has seen the yearly insect catches fluctuate, as expected. But in 2013 they spotted something alarming. When they returned to one of their earliest trapping sites from 1989, the total mass of their catch had fallen by nearly 80%. Perhaps it was a particularly bad year, they thought, so they set up the traps again in 2014. The numbers were just as low. Through more direct comparisons, the group—which had preserved thousands of samples over 3 decades—found dramatic declines across more than a dozen other sites.
Beyond the striking drop in overall insect biomass, the data point to losses in overlooked groups for which almost no one has kept records. In the Krefeld data, hover flies—important pollinators often mistaken for bees—show a particularly steep decline. In 1989, the group's traps in one reserve collected 17,291 hover flies from 143 species. In 2014, at the same locations, they found only 2737 individuals from 104 species.
originally posted by: Mandy555
a reply to: charlyv
Anecdotal evidence from England.
Just the other day I was speaking to my mother on the phone and she asked if I had seen any 'daddy long legs' this year. en.m.wikipedia.org...
Because usually there are loads in autumn, but this year there had hardly been any.
I had to agree with her. I haven't seen many either.
Other things seem to have changed too, since I was young. The weather seems different. Used to be loads of snow, but I haven't seen any for years now.
originally posted by: Painterz a reply to: buddha a reply to: Kandinsky
Same thing here in the Scottish highlands.
Used the in the summer at night the windows would not swarming with midges and moths and all sorts. This year? I barely saw a single insect.
Seriously weird. And scary.
Where I live in Ohio the mosquitoes are no longer as bad as they were 15 years ago when I was a kid- I also no longer see any Monarchs, it's been years.