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Insect population decline affects ecosystems, and other animal populations, including humans. Insects are at "the structural and functional base of many of the world's ecosystems." [6] A 2019 global review warned that, if not mitigated by decisive action, the decline would have a catastrophic impact on the planet's ecosystems. [6]
Pollinator decline is the reduction in abundance of insect and other animal pollinators in many ecosystems worldwide that began being recorded at the end of the 20th century. Multiple lines of evidence exist for the reduction of wild pollinator populations at the regional level, especially within Europe and North America.
The largest study of insect declines to date gives us the best indication of how species all over the world are faring. Insects: worldwide study reveals widespread decline since 1925 Skip to main ...
These grasshoppers, like many insects around the world, are declining. Dave Rintoul, CC BY-NDThe Research Brief is a short take on interesting academic work. The big idea Grasshopper populations ...
[56] [57] In the 2010s, reports emerged about the widespread decline in insect populations across multiple insect orders. The reported severity shocked many observers, even though there had been earlier findings of pollinator decline. There have also been anecdotal reports of greater insect abundance earlier in the 20th century.
As well as harming the environment, the loss of insects could also harm human health, researchers suggest. Climate change and agriculture halve insect populations in some areas – study Skip to ...
More commonly insect conservation occurs indirectly, either through the setting aside of large portions of land using "wilderness preservation" as the motive, or through protection of "charismatic vertebrates". Some studies estimate that global insect populations are in rapid decline, perhaps by as much as 80% in recent decades.
The U.S. Fish and Wildlife Service is pushing for added protections for the monarch butterfly after seeing a population decline of about 80%. The service announced a proposal to list the butterfly ...