Insects react sensitively when temperature and precipitation deviate from the long-term average. In an unusually dry and warm winter, their survival probabilities are reduced; in a wet and cold spring, hatching success is impaired. A cool, wet summer hampers bumblebees and other flying insects to reproduce and forage.
Click here for original story, Weather conditions explain the decline and rise of insect biomass over 34 years
Source: Phys.org