'Insects are in danger of extinction' as revealed by data from long-term surveys of amateur groups



About 20 million species of insects inhabit all over the world are known as of 2018 and account for more than half of the identified species. However, it has become clear in a survey of insect enthusiast groups that the number has dropped significantly and has become 'endangered' in the last 30 years.

Insect apocalypse: German bug watchers sound alarm

The “ Amateur Entomology Society of Krefeld ”, located in the city of Krefeld in western Germany, has set up bug traps in the German countryside for more than 30 years since 1982 and has about 80 million animals I have collected insects. In the abandoned school building used as the headquarters, glass cabinets are arranged in a room that is blocked by sunlight with thick curtains, and thousands of butterflies, overseas beetles and dragonflies are exhibited and stored.

As President Martin Zork says, “The insect trap we use has been standardized in size and material since 1982, and we are collecting insects at 63 points as well,” Krefeld The Amateur Entomology Society has conducted long-term research with standardized contents, and it can be said that it is a repository of quantitative data that can confirm changes in annual insect catch at many sites for university research teams and so on. It is an existence.

However, after more than 30 years of research, it has been found that the total amount of insects captured is 76% less than at the start of the survey.



The Krefeld Amateur Society of Insects expressed its claim that 'insect is in danger of extinction' in 2011, but it has been said that no major responses have been received outside the environmental field. The most sensational claim to the loss of biodiversity is that large animals found in zoos are becoming extinct, and topics such as the reduction of insects are often overlooked.

On the other hand, the research results of the Krefeld Amateur Society of Insects may play an important role in university research. For example, Professor Hans de Kroon, who studies ecology at the University of Radbaud, The Netherlands, considered that 'the reduction of insects that are food could be a factor in the reduction of birds' while studying the problem of the reduction of birds, but with evidence and Was suffering from a lack of At such a time, he was asked by a German colleague to ask, 'Because the Krefeld Amateur Society of Insects holds data on insect reduction that should be of concern, so let me analyze it,' and I was able to use it in my own research. I'm talking

Also, the data from the Krefeld Amateur Insect Society was used in the meta-analysis conducted by research teams at the University of Sydney and University of Queensland, Australia. The research team pointed out that more than 40% of insect species are threatened with extinction and 1% more insects are threatened each year. 'It's the largest case of extinction since the dinosaur extinction,' claimed the research team.

by Anthony

Mr. Zork said that insects in Western Europe are in a very difficult situation as plants are built just a little away from nature reserves and pesticides are used in the field for reducing insect catch. Pointed out. 'It's the most frightening situation for us to reach a point where the loss of insects can not go back. It leads to a permanent loss of biodiversity,' Zork said.

in Creature, Posted by log1h_ik