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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 ...
Insects — by country. Note: where an insect is found in a large number of countries on a continent, they are not categorized by each country — see/use: Category: Insects by continent . This is a container category .
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 ...
Recent figures indicate that there are more than 1.4 billion insects for each human on the planet, [27] or roughly 10 19 (10 quintillion) individual living insects on the earth at any given time. [28] An article in The New York Times claimed that the world holds 300 pounds of insects for every pound of humans. [28]
Nonetheless, an estimated 87.5% of the world's flowering plant species are animal-pollinated, [36] and 60% of crop plant species [37] use animal pollinators. This includes the majority of fruits, many vegetables, and also fodder. [38] According to the USDA 80% of insect crop pollination in the US is due to honey bees. [39]
Insects by country (81 C) Insects by region (15 C) * Lists of insects by location (8 C, 14 P) O. Insect orders by location (12 C) P. ... Statistics; Cookie statement;
Lepidoptera are among the most successful groups of insects. They are found on all continents, except Antarctica . Lepidoptera inhabit all terrestrial habitats ranging from desert to rainforest, from lowland grasslands to montane plateaus but almost always associated with higher plants, especially angiosperms ( flowering plants ). [ 1 ]