The windshield on a modern aerodynamic auto is a poor collection devise for sure. Roads and highways traversing urban and intense agricultural areas are a poor location to find a large diverse population of insects. A number of well constructed studies as noted have done collections in "protected" areas and in fact found a decline in insect mass.
Everyone can find support for their opinions but few are willing to change theirs on the weight of evidence.
My opinion is that humanity has so drastically altered the earths environment making such a large part of it inhospitable to insects that a decline is inevitable. If we drastically reduce insect population in a large area then for that population to remain stable overall it is logical that it would have to increase in the remaining smaller area. There would need to be more insects in these areas living on the same amount of resources. So where is this large increase in insect mass taking place?
Paul Hosticka
Dayton WA
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