Populations

Population:  Fishing for Answers

Today, students learned all about populations. We began by discussing world population and how it has increased from 1 billion to 7 billion people in just over 200 years. Students correctly identified China (1.3 billion) and India (1.2 billion) as the most populous countries in the world.

Students learned the important characteristics of a habitat. Every living creature requires food, shelter, water, and space to grow.

We also explored the Tragedy of the Commons in a game where students grouped together in villages that survived by fishing. Inevitably, villagers who caught the maximum number of fish allowed each year ended up not leaving enough fish in the pond to reproduce to provide food for the next year. Villagers starved and villages collapsed until some students realized that if they fished enough to survive, but not enough to deplete the fish resource, the game could continue indefinitely – or as we say in ecology – sustainably – for many generations.

Additional Information:

We watched a great video about population that you can review here. http://www.npr.org/2011/10/31/141816460/visualizing-how-a-population-grows-to-7-billion

Watch this short video to find out more about Tragedy of the Commons. https://www.youtube.com/watch?v=KZDjPnzoge0

 

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