Insects have declined by 75% in the last three decades (1). For butterflies like monarchs, the risks of wireless broadband radiation are on top of risks from toxic spraying and habitat loss. Besides research showing higher wireless frequencies raise the body temperature of insects (2), aspects of high frequency 5G technology appear able to destroy the sensing mechanisms of insects, such as the antenna of butterflies, which also equates to death (3). Though wireless studies on butterflies do not exist to our knowledge, honeybee studies have shown wireless causes hive desertion (4), stress (5), and threateningly curtails honey and egg production (6).
Hive desertion by honeybees may not only be a function of severe discomfort, but of disorientation. A 2014 study provides evidence that wireless disrupts the internal compass of European robins (7); a 2016 study has found orientation of European robins disrupted by weak broadband (wireless) signals (8). Butterflies similarly orient with a magnetic compass sensitive to ultraviolet A and blue light (9). Senior study author of butterfly magnetic compass research Steven Reppert, a distinguished professor of neurobiology at UMass Medical School, notes butterflies are likely vulnerable to "electromagnetic noise," a term which includes wireless and light (10). Studies on bees and butterflies have shown orientation disrupted by magnetic fields, although the frequencies and power levels were not necessarily wireless communications (11, 12, 13).
The type of frequency used can change the impact or focus of the frequency, and so research is needed on different frequencies upon different forms of life, from plants to fungi to cells. Commonalities may exist for just as in human beings, application of a magnetic field in bees also can generate calcium efflux (14, 15).
The United States Environmental Protection Agency (EPA) has shared concerns over wireless and power frequency exposures for over two decades, submitting for example docket reports on threats to wildlife from cell towers. In 1990, the EPA prepared a report, never to be officially released, recommending radio-frequencies, including wireless communications, be considered a "possible human carcinogen" and power frequencies classified as "probable human carcinogens." Legal power limits for these frequencies are currently set by the Federal Communications Commission (FCC), and the EPA has consistently objected to the FCC's cavalier stance and emphasized that the guidelines neglect "chronic, nonthermal exposure."
EPA References: The Environmental Health Trust has neatly compiled historical documents showing concern by the EPA.