Which sanctuaries do monarchs select? Pie chart and butterfly sanctuary map.

February 26, 2016
This winter's monarch colonies cover 10 acres (4.01 hectares) and contain an estimated 200 million butterflies. This map shows how the population is distributed.

Guiding Questions

  • How would you describe the distribution of monarchs in the winter sanctuaries?
  • What factors do you think might influence site selection?
  • Scientists can't predict which sanctuaries the monarchs will use in any particular year. How do you think distribution affects conservation decisions?

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