More evidence of insect decline

The biomass of flying insects has declined by a dramatic 76% in western German protected areas, according to a recent publication by Caspar A. Hallmann et al. (2017) PLoS ONE. Over a 27 year period, from 1989 to 2016, biomass of insects captured in malaise traps at 96 unique location-year combinations across a wide variety of habitat types dropped precipitously through time (see their Fig 2 above). While the decline does not appear to be…

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