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In late 2017, ecologist Caspar Hallmann of Radboud University in the Netherlands and his colleagues published an analysis of data from the Entomological Society Krefeld in Germany that showed a decline of more than 70 percent in flying insect biomass (the volume of living matter) over a 27-year period. A year later, ecologists Bradford Lister of the Rensselaer Polytechnic Institute and Andres Garcia of the Universidad Nacional Autónoma de México published a study from the Luquillo Experimental Forest in Puerto Rico suggesting a long-term decline in arthropod biomass and a restructuring of the area's food web because of increased local temperatures. Earlier this year, Francisco Sánchez-Bayo of the University of Sydney and Kris Wyckhuys of the University of Queensland published a review paper provocatively titled "Worldwide Decline of the Entomofauna." |
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