February 9, 2017
This winter's monarch colonies cover 7.19 acres (2.91 hectares) and contain an estimated 146 million butterflies. This map shows how the population is distributed.
- 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?