February 26, 2016
These pie charts show how the population was distributed between the 12 major winter colonies from 2009-2010 to the present.

Guiding Questions

• What similarities and differences are revealed when comparing years?

• Why is it valuable to have information from more than one year?

• If you only looked at one year, which sanctuaries would you say needed to be protected? How might that change if you looked at more years?

• What predictions could you make about the future based on these graphs?

 

 

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