So many people searching for the reasons for the die-offs. So many culprits.
One thing’s for sure, many of the insect populations are declining.
The bug scientists from Munich and Müncheberg allude to a “fleeting movement in the potential foundations for the decrease of species.” Initially, it is essentially those bugs that have some expertise in a specific environment, e.g., the Mountain Apollo (Parnassius apollo) butterfly, which will be undermined by the loss of top-notch natural surroundings.