January 27 - January 27, 2010 Atrazine & frog decline...

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January 27, 2010 Atrazine – common US herbicide(banned in Europe) o Also infect snails Tadpols pick up trematode larvae, which can become cysts (closed sac of tissue) If the cysts are in tissue that develops into legs, can cause extra or truncated legs. Can frogs pass these deformities on their offspring? o No, its not in the DNA, just a disease 2008 study of 240 potential factors in Minnesota wetlands Factors include chemicals, land use types, number of insects as food for frogs, types of insects, plants Atrazine alone explained 51% of infections Atrazine + phosphate (fertilizer) explained 74% Why did Atrazine increase infections? (a hypothesis) Atrazine into water system dead plants more algae(very small, thus can grow back and multiply very quickly compared to plants with stems and leaves) more snails(eat algae) more Trematodes fucked up frogs with extra limbs!!! Is it conclusive?
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January 27 - January 27, 2010 Atrazine & frog decline...

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