Read that spiders eat 800 million tonnes of insects per year, keeping the balance in the world's natural ecosystem.:
Ew.
www.sciencealert.com
New research has found that spiders chow through as much as 800 million tonnes of prey annually – but while that upsized serving might make some of us feel uncomfortable, scientists say these arachnids are actually performing an important civic duty.
More than
90 percent of the spider diet is made up of insects and insect-like
springtails, and by devouring several hundred million tonnes of these tiny pests every year, researchers say spiders play an essential role in keeping natural ecosystems in check.
"Our calculations let us quantify for the first time on a global scale that spiders are major natural enemies of insects,"
says one of the researchers, biologist Martin Nyffeler, from the University of Basel in Switzerland.
"In concert with other insectivorous animals such as ants and birds, they help to reduce the population densities of insects significantly. Spiders thus make an essential contribution to maintaining the ecological balance of nature."