We found pesticides in a third of Australian frogs we tested.
"In our newly published research, we detected pesticides in more than one in three frogs we tested. We found a rodenticide in one in six frogs."
"Pesticides have been shown to be a major cause of worldwide declines in amphibians, including frogs and toads. In the case of the mass deaths in Australia, we don’t believe pesticides were the main cause, for reasons we’ll explain."
"We tested liver samples of 77 frogs of six species from across New South Wales for more than 600 different pesticides. We detected at least one pesticide in 36% of these frogs."
"Our most significant discovery was the rodenticide Brodifacoum in 17% of the frogs. This is the first report of rodenticides – chemicals meant to poison only rodents – in wild frogs."
"Two pesticides detected in frogs were organochlorine compounds dieldrin and heptachlor. A third, DDE, is a breakdown product of the notorious organochlorine, DDT."
"These pesticides have been banned in Australia for decades, so how did they get into the frogs? Unfortunately, these legacy pesticides are very stable chemicals and take a long time to break down. They usually bind to organic material such as soils and sediments and can wash into waterways after rain."
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https://theconversation.com/we-found-pesticides-in-a-third-of-australian-frogs-we-tested-did-these-cause-mass-deaths-228194
Broad-scale pesticide screening finds anticoagulant rodenticide and legacy pesticides in Australian frogs>
https://www.sciencedirect.com/science/article/abs/pii/S004896972402672X?via%3Dihub
#amphibians #frogs #MassMortality #rodenticides #water #pesticides #chemicals #AnticoagulantRodenticide