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An annual decline of 5.2% in flying insect biomass found in nature reserves in Germany – about 75% loss in 26 years [1]. Insects are the most numerous and widespread class in the animal kingdom, accounting for up to 90% of all animal species.
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.
An annual decline of 5.2% in flying insect biomass found in nature reserves in Germany – about 75% loss in 26 years [55] Insects are the most numerous and widespread class in the animal kingdom, accounting for up to 90% of all animal species.
The citizen science project asks people to record the number of flying insects that are squashed on their car number plates after a drive. ‘Bug splat’ survey shows 78% decline in flying ...
In the ocean, they estimated that in the range between those "low" and "high" global warming scenarios, ocean net primary production would decline by 3% to 10% by the end of the century, while fish biomass would decline by 3% to 25%. Finally, even the lower warming levels of 1.5–2 °C (2.7–3.6 °F) would "profoundly" reduce geographical ...
The EVK is known in particular for a study it conducted, published in PLOS One in 2017, that demonstrated a 75 percent decline in flying insect biomass in 63 nature reserves in Germany between 1989 and 2016. [3] [4] The paper became the "third most frequently cited scientific study" of 2017 in the media, according to The Economist. [5]
Several studies seemed to indicate that some insect populations are in decline in the late 20th and early 21st centuries, and has also been popularized as the windshield phenomenon. For many studies, factors such as abundance, biomass, and species richness are often found to be declining for some, but not all locations in many studies; some ...
The value of insects in the biosphere is enormous because they outnumber all other living groups in measure of species richness. The greatest bulk of biomass on land is found in plants, which is sustained by insect relations. This great ecological value of insects is countered by a society that often reacts negatively toward these aesthetically ...