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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]
For 203 insect species that had IUCN-documented population trends in 2013, 33% were in decline with variation in documented species across orders. [13] Most scientific and public attention has been focused on the conservation of larger, charismatic vertebrates, and relatively fewer studies have been done on insect groups, especially Diptera ...
An article in The New York Times claimed that the world holds 300 pounds of insects for every pound of humans. [28] Ants have colonised almost every landmass on Earth. Their population is estimated as between 10 16 –10 17 (10-100 quadrillion). [29]
Insect species (IUCN, 2016.1) 5993 extant species have been evaluated; 4291 of those are fully assessed [a] 3144 are not threatened at present [b] 1146 to 2848 are threatened [c] 59 to 105 are extinct or extinct in the wild: 58 extinct (EX) species [d] 1 extinct in the wild (EW) 46 possibly extinct [CR(PE)] 0 possibly extinct in the wild [CR(PEW)]
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 ...
The largest is the dobsonfly Acanthacorydalis fruhstorferi, which can have a wingspan of up to 21.6 cm (8.5 in), making it the largest aquatic insect in the world by this measurement. [38] This species is native to China and Vietnam, and its body can be up to 10.5 cm (4.1 in) long.
10.3 Population declines. 10.4 In research. 10.5 As food. 10.6 In other products. 10.7 In religion and folklore. 11 See also. 12 Notes. ... Insects live in a world of ...
The Asian tiger mosquito (Aedes albopictus) is “the most prevalent species across the state, particularly in large urban areas,” according to Michael Waldvogel of N.C. State.