The reason why there are fewer insects
Some 80% of wild plants rely on insects for pollination; 60% of birds rely on insects as a food source. We normally do not spend much time on thinking about insects and if we do it, it is mainly to think they are a pest and bother us. But insects form such an important link in the chain of life.
When they go missing the whole world will suffer.
Bees and Butterflies
I have written about the bees and their importance for our world. I have also mentioned butterflies, they also have a role in the Fauna and Flora of our earth. Bees and butterflies are diminishing and now some more disturbing news has appeared. There is a new study which tells about the rapid decline of the total insect populations, some 75% over 3 decades.
An important study in Germany
This study was published in a peer-reviewed journal PLOS One (published by the Public Library of Science). In Germany, there are many nature reserves and this study was conducted within these nature reserves. If a decline of insects is identified in these protected areas, you can imagine that in unprotected areas, cities, or industrial areas the decline will probably even much more. The study was conducted by the Radboud University in the Netherlands together with the Entomological Society Krefeld in Germany.
It was not so easy to do this study and the total spectrum of insects was taken into consideration.
It is like insect hunting. Malaise traps are being used and then the total-known as biomass- is weighted. Like that the researchers found a steady decline. When you think that insects make up some 70% of all animal species, their importance is underestimated. One does not realize the many jobs they, do like pollinating the crops we eat. They function as a pest control so we need fewer pesticides. Even in waste control, it is the ants and cockroaches who take care of it in urban areas.
Source: CNN by Euan McKirby
As insects represent around 70% of all animals in the world it is still astonishing when one reads there is an estimated 10 quintillion, that is 10,000,000,000,000,000,000 individual insects living in our world. It is known that in the US there are 91.000 known species living.
Another amazing fact
Do you know how many insects there are for each human? I suppose it is a difficult question.
Recent figures indicate there are more than 200 million. Recently there was an article published in the New York Times. It says there is some 300 pound of insects for each pound of human flesh. My brain refuses to try and visualize this but I know it is lots!
Photo Source: Pixabay
Perhaps you would also like to read about the bees.