Research results that annual predation of spiders around the world is heavier than the weight of all humans on earth

BySam valadi

Spiders are predominantly staple insects in general, but when they become large spiders it is known as an animal with a strong appetite to prey not only birds and lizards but also small mammals. As a result of investigating the predation of such spiders, it turned out that the annual predation of the spider inhabited all over the world exceeds the annual food consumption of the world population, corresponding to the weight of 478 Titanic.

An estimated 400-800 million tons of prey are annually killed by the global spider community | Springer for Research & Development
https://rd.springer.com/article/10.1007/s00114-017-1440-1


Spiders could theoretically eat every human on Earth in one year - San Francisco Chronicle
http://www.sfchronicle.com/news/science/article/Spiders-could-theoretically-eat-every-human-on-11033225.php

Martin Knifler of the Department of Conservation Biology at the University of Basel, Department of Conservation Biology and Mr. Klaus Bilkoffer of Biological Sciences at Lund University unveiled research on annual predation of spiders all over the world. According to research, spiders in the world have an annual predation of 400 million tons and there are years of 800 million tons. The amount of meat and fish consumed by 7 billion people, which is the same size as the world population, is 400 million tons, which means that spiders have twice as much predation as humans.

These numbers are based on another study "the number of spiders per square meter in the habitat of the major spiders on the earth" and the research "average annual predation of spid by size" I tried to calculate. In one of the studies it is estimated that the density of the spider on the earth is 131 square meters, but this is the average number of the whole earth and, of course, it is different from the inhabitants of the desert and tundra spiders. Therefore, Mr. Knifler thinks that spider density will be 1000 or more per square meter under "preferred environment". Although the definition of "under favorable circumstances" is not revealed, reporters of San Francisco Chronicle expect "a dark and dusty place as under the bed".

The total amount of human beings on the earth is 350 million tons, but you can see that it is less than the annual predation of spiders all over the world. Spiders do not positively eat humans, but in theory it is said that "Spiders can eat humanity in a year and still not enough to eat". The weight of the whole spider on the planet is estimated to be 25 million tons, which is comparable to 478 vessels of the Titanic of 1 50,000 tons.


Furthermore, according to a biologist, the spider's predation per day is said to be approximately 10% of the body weight. This is the same as human beings eating 6 kg of meat everyday with people weighing 60 kg. If it is only theory, if a spider gathers for 600 kg, one person will eat up in one day. Together,Somewhere monster · panic movieEvents like this can happen in theory.