Cat Island, Aoshima, Japan

Cat Island, Aoshima, Japan

In Aoshima, a small, remote island off the coast of Southern Japan, cats outnumber humans 10 to 1.

The cats were originally brought to the island to help control mice and bird infestation, but with no natural predators – and a dwindling supply of prey – the number of cats soon got out of hand.

The cats reproduce so quickly and so often that with no predators to decrease their population, an island packed full of cats was created. 

Open Ended

What caused the introduction of cats to Cat Island?

Open Ended

Based on the PIE Chart: What does the wild house-cat’s primary diet consist of?

Open Ended

Based on the bird line-graph: What happened between year 1 and year 4 on the island? a. What happened after year 4?

Open Ended

Based on the mouse line-graph: What happened between year 1 and year 4 on the island? a. What happened after year 4?

Open Ended

Based on the cat line-graph: What happened between year 1 and year 4 on the island? a. What happened after year 4?

Open Ended

Explain why the Wild-House cats population fluctuated (changed) the way it did between years 1 and 7. Explain how you know (what do the graphs and pie chart show?)!