Canadian researchers found high concentrations of neonicotinoid pesticides in dead hummingbirds, which could be responsible for their population decline.
Recently, Health Canada announced a move to ban the use of certain pesticides containing chemical substances known as neonicotinoids. Scientists have long known such pesticides decimate bee populations, which is bad enough, considering several species have made the endangered list of late. However, current evidence exists showing how these substances harm more than just bees.
Researchers have found neonicotinoids present in the bodies of birds and other mammals as well. The substances have caused multiple hummingbird deaths. Scientists now fear what these substances could do to the human food chain as well as the planet’s ecology.
the term “neonicotinoids” refers to a class of chemicals related in atomic structure to nicotine. And just as nicotine acts on the human nervous system, neonicotinoid pesticides act upon the nervous system of invertebrates such as insects. Although most previous scientific evidence pointed to the fact these compounds are less toxic to vertebrates like birds, mammals and humans, the recent death of myriad hummingbirds from neonicotinoid toxicity indicates the chemicals may not be as innocuous as once thought [1]...
















