Slashdot Mirror


Insects Could Vanish Within a Century At Current Rate of Decline, Says Global Review (theguardian.com)

An anonymous reader quotes a report from The Guardian: The world's insects are hurtling down the path to extinction, threatening a "catastrophic collapse of nature's ecosystems," according to the first global scientific review. More than 40% of insect species are declining and a third are endangered, the analysis found. The rate of extinction is eight times faster than that of mammals, birds and reptiles. The total mass of insects is falling by a precipitous 2.5% a year, according to the best data available, suggesting they could vanish within a century. The planet is at the start of a sixth mass extinction in its history, with huge losses already reported in larger animals that are easier to study. But insects are by far the most varied and abundant animals, outweighing humanity by 17 times. They are "essential" for the proper functioning of all ecosystems, the researchers say, as food for other creatures, pollinators and recyclers of nutrients.

Insect population collapses have recently been reported in Germany and Puerto Rico, but the review strongly indicates the crisis is global. The researchers set out their conclusions in unusually forceful terms for a peer-reviewed scientific paper: "The [insect] trends confirm that the sixth major extinction event is profoundly impacting [on] life forms on our planet. The analysis, published in the journal Biological Conservation, says intensive agriculture is the main driver of the declines, particularly the heavy use of pesticides. Urbanization and climate change are also significant factors.
"One of the biggest impacts of insect loss is on the many birds, reptiles, amphibians and fish that eat insects," the study says, noting a recent study in Puerto Rico where there was a 98% fall in ground insects over 35 years. Butterflies and moths are among the worst hit.

1 of 241 comments (clear)

  1. Alarmist propaganda based on anecodtal evidence. by Anonymous Coward · · Score: -1, Redundant

    Per the self-referenced slashdot article above:

    Scientist Brad Lister returned to Puerto Rican rainforest after 35 years to find 98% of ground insects had vanished. His return to the Luquillo rainforest in Puerto Rico after 35 years was to reveal an appalling discovery. The insect population that once provided plentiful food for birds throughout the mountainous national park had collapsed. On the ground, 98% had gone. Up in the leafy canopy, 80% had vanished. The most likely culprit by far is global warming.

    Lets talk for a minute, objectively, about alarmist fake-news. The above is anecdotal evidence; one person, one observation. Am I going to seriously make a change to my lifestyle because the never fallable Brad Lister, scientist extraordinair, made an observation? No. The bar of evidence is a study. I need hard data.

    We've got a Guardian article about how insect populations are falling, referencing a paywalled article here:
    https://www.sciencedirect.com/science/article/abs/pii/S0006320718313636

    Lowest price I can find for me to get copies was around $6k.

    So there's two possibilities here; either this is fake news and I have a publication so desperate they need to post clickbait, or this isn't fake news and the rich are keeping vital information from the public because, most likely, we're screwed as a species. In which case I think rounding them up for a soviet style gulag program is a great and wonderful idea. They lead us here, they get to be the first to eat it.

    In either case, why am I here?

    Either give me the study, or don't post this, because you are wasting my time. Plenty of other things I could be doing, wasting my time, rather than coming here.