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A Plague of Frogs--Study Questions to accompany the book.
CHAPTER 14: The Green Mountain
- What was the focus of Johnson’s work?
- Describe the statistics Johnson found in these ponds.
- Why did Johnson narrow his search to only 4 ponds?
- What factors made Johnson’s experiment more “real” or widely accepted than previous experiments?
- Explain the difference between mechanically disturbing the limb and by some sort of chemical signal.
- What are the two categories of deformities according to Stan Sessions?
- Who is Dan Sutherland and what was his opinion on the Johnson’s results?
- If the parasite theory was found to be the sole cause, would it have an effect on humans? Why or why not?
- What does the phrase snail-parasite-frog complex mean?
- Why do scientists not believe parasites are the sole cause?
- What is a variable phonology?
- What did the discovery of Ribeiroia at the deformities sites in Minnesota result in?
- What did Johnson find at “Danube”?
- According to Martin Ouellet’s report, what were some biotic and abiotic factors involved?
- What was Martin Ouellet’s frustration at this point in the study?
- What did the radiographs show?
- Why was spongiform bone a contraindication of parasitism?
- Why was it not enough to say parasites cause deformities?
- What do biologists refer to as “recruitment”?
- Explain the concept of carrying capacity.
- What is the reproductive strategy of frogs according to Dave Hoppe?
- What is a lunker?
- What is Aeromonas hydrophilia and what effect did it have on the leopard frog population?
- Why was A. hydrophila able to infect the frogs when it had not been able to in the past?
- What is Alan Pounds known for? Explain his work.
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